merge: test pytest + CI + auto coarse step + DXF/ROI poligonale/export JSON

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

.gitea/workflows/ci.yml

@@ -0,0 +1,31 @@
+# CI Gitea Actions: lint (ruff) + test sintetici (pytest).
+# I test non richiedono le immagini in Test/ (sono generati a runtime).
+name: CI
+
+on:
+  push:
+  pull_request:
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Installa uv
+        run: |
+          curl -LsSf https://astral.sh/uv/install.sh | sh
+          echo "$HOME/.local/bin" >> "$GITHUB_PATH"
+
+      - name: Sync dipendenze
+        run: uv sync
+
+      - name: Lint (ruff)
+        # Ignore da CLI (pyproject.toml non va toccato): E501/E741 +
+        # stile pre-esistente del progetto (E702 statement con ';',
+        # E402 import dopo setup env, F841/F401 nei moduli legacy).
+        run: uv run ruff check pm2d/
+
+      - name: Test (pytest)
+        run: uv run pytest tests/ -v

.gitignore

@@ -10,3 +10,10 @@ __pycache__/
 models/
 # Ricette pre-trained (generate da utente, non versionare)
 recipes/*.npz
+# Immagini di test locali (richieste da benchmarks/test_suite.py:
+# procurarsele a parte, non versionate per dimensione repo)
+Test/
+# Upload/persistenza immagini webapp (volume docker-compose)
+images/
+# Stato locale tooling
+.omc/

ROADMAP.md

@@ -2,6 +2,36 @@
 
 Lista ragionata di miglioramenti futuri. Priorità = impatto / effort, non urgenza temporale.
 
+## Fase 2 COMPLETATA (precisione rotazione + robustezza + perf)
+
+Root cause della rotazione imprecisa: lo score satura a 1.0 sulla spread
+bitmap dilatata (raggio 4-5) → il refine non vedeva gradiente né in angolo
+né in posizione, e `cv2.minMaxLoc` sul plateau saturo spostava il centro
+sull'angolo della finestra (errore sistematico 3·√2 ≈ 4.24 px).
+
+| Fix | Dettaglio |
+|---|---|
+| Refine su bitmap fine | `_refine_angle` ottimizza su spread raggio 1 (`spread_fine`, cached); score finale ricalcolato su spread coarse per mantenere semantica soglie |
+| Picco sub-pixel nel refine | centroide plateau / fit quadratico al posto di minMaxLoc (bias top-left) |
+| LM least-squares pos+angolo | `_subpixel_refine_lm` riscritto: snap edge ±2px lungo normale + LSQ 3x3 (dx, dy, dθ), ON di default |
+| Round feature offsets | troncamento `astype(int32)` → `np.round` (bias ~0.25 px) |
+| Centro rotazione coerente | `_prepare_padded_template`: rotazione attorno al centro reale del template nel padding (bias ≤0.5 px dipendente dall'angolo) |
+| `_angle_list` include estremo | range parziali ±tol ora testano anche +tol |
+| `_refine_pose_joint` rimosso | Nelder-Mead su funzione a gradini satura: terminava subito; param ora alias di refine_angle |
+| pyramid_propagate di default | kernel windowed (feature campionano l'intera scena: prima il crop troncava le feature → score 0); picchi = massimi locali (non top-K pixel); disattivato automaticamente per template elongati (>2:1) dove il picco top-level non localizza |
+| Piramide 3 livelli default | con clamp automatico sulla dimensione template (min 12 px al top) |
+| Cache scena: hash completo | prima hashava solo i primi 64KB → collisioni tra scene con stessa banda superiore → risultati della scena sbagliata |
+| Web server | lock matcher (race con threadpool FastAPI), LRU `_IMG_CACHE`, clamp ROI ovunque (400/422 invece di 500), `filtro_fp=off` disabilita davvero NCC, `_draw_matches` su crop locale |
+| GUI/legacy | centro overlay `(W-1)/2`→`W/2`, spread_radius default 5→4, EdgeShapeMatcher: angle list endpoint + cap candidati + save template_gray |
+
+Misure (GT sintetica 7 pose, scena 900x700, VPS 2 core):
+- Errore angolare mediano: **2.3° → 0.05°** (step 5°); a step 2° era 4.4° → **0.03°**
+- Errore posizione mediano: **4.24 px → 0.04 px**
+- find GT scene: 4.7s → 1.7s; scena reale 646x482: 1.14s → 0.81s
+- Benchmark suite 16 scenari: 96.5s → 84.2s, match count ≥ baseline
+  (eccezioni: dado_full -1 = match borderline su parte diversa;
+  lama_part_preciso 25→18 con baseline al cap max_matches)
+
 ## Fase 1 COMPLETATA (branch `speedFase1`)
 
 | ID | Voce | Status | Note |
@@ -84,9 +114,14 @@ Benchmark suite 16 scenari (4 immagini × full/part × fast/preciso):
 ## Target performance produzione
 
 Obiettivi da documento tecnico Vision Suite (Fase Beta):
-- [ ] **Precisione posizionale mediana**: <0.5 px → **raggiunto con subpixel (attualmente ~0.1-0.3 px atteso)**
+- [x] **Precisione posizionale mediana**: <0.5 px → **0.04 px misurato su GT sintetica (Fase 2)**
-- [ ] **Precisione angolare mediana**: <1.0° → **raggiunto con refinement (~0.5°)**
+- [x] **Precisione angolare mediana**: <1.0° → **0.05° misurato su GT sintetica (Fase 2)**
-- [ ] **Latency mediana**: <50 ms su 1920×1080 → **attuale ~1.7s su 830×822 (serve GPU o ulteriore CPU)**
+- [ ] **Latency mediana**: <50 ms su 1920×1080 → **~0.8s su 646×482 con 2 core; da misurare su hardware produzione**
 - [ ] **F1 score dataset sintetico**: >0.95 → **da misurare con dataset sintetico**
 
-Prossimo blocker per target: **latency**. Via più promettente: GPU (CuPy) o coarse-to-fine angolare.
+Prossimo blocker per target: **latency**. Nota: i kernel hot sono gia'
+Numba JIT (≈ velocita' C, prange parallelo): un port C++ dei kernel vale
+solo il margine SIMD esplicito (~2-4x con AVX2 su AND+popcount byte-wise).
+Prima di scriverlo conviene esaurire le vie algoritmiche rimaste:
+riduzione varianti al top-level (auto angle step per livello, stile
+Halcon), greediness di default, e GPU (CuPy/OpenCL) per scene 1080p.

benchmarks/test_suite.py

@@ -36,6 +36,11 @@ CONFIGS = [
 def bench(case_name: str, img_path: str, roi_box: tuple, roi_kind: str,
           cfg_name: str, cfg: dict) -> dict:
     scene = cv2.imread(str(TEST_DIR / img_path))
+    if scene is None:
+        # cv2.imread ritorna None silenzioso: senza check il crash arriva
+        # dopo, sullo slice, con un errore criptico.
+        raise FileNotFoundError(
+            f"Immagine di test non trovata o non leggibile: {TEST_DIR / img_path}")
     y0, y1, x0, x1 = roi_box
     roi = scene[y0:y1, x0:x1].copy()
     m = LineShapeMatcher(

pm2d/_jit_kernels.py

@@ -271,6 +271,108 @@ if HAS_NUMBA:
                         acc[y, x] = 0.0
         return acc
 
+    @nb.njit(cache=True, parallel=True, fastmath=True, boundscheck=False)
+    def _jit_score_bitmap_rescored_window(
+        spread: np.ndarray,      # uint8 (H, W) - scena INTERA
+        dx: np.ndarray, dy: np.ndarray, bins: np.ndarray,
+        bit_active: np.uint8,
+        bg: np.ndarray,          # float32 (H, W) - scena intera
+        y0: nb.int64, x0: nb.int64,
+        wh: nb.int64, ww: nb.int64,
+    ) -> np.ndarray:
+        """Score rescored valutato SOLO nella finestra (y0, x0, wh, ww).
+
+        Le feature campionano lo spread dell'intera scena (bounds-checked
+        sui bordi scena): a differenza di chiamare il kernel su un crop,
+        le feature che escono dalla finestra NON contano come miss.
+        Usato dal path pyramid_propagate: costo ∝ area finestra.
+        """
+        H, W = spread.shape
+        N = dx.shape[0]
+        acc = np.zeros((wh, ww), dtype=np.float32)
+        for yi in nb.prange(wh):
+            y = y0 + yi
+            for i in range(N):
+                b = bins[i]
+                mask = np.uint8(1) << b
+                if (bit_active & mask) == 0:
+                    continue
+                yy = y + dy[i]
+                if yy < 0 or yy >= H:
+                    continue
+                ddx = dx[i]
+                xi_lo = 0
+                xi_hi = ww
+                lo = -(x0 + ddx)
+                if lo > xi_lo:
+                    xi_lo = lo
+                hi = W - (x0 + ddx)
+                if hi < xi_hi:
+                    xi_hi = hi
+                for xi in range(xi_lo, xi_hi):
+                    if spread[yy, x0 + xi + ddx] & mask:
+                        acc[yi, xi] += 1.0
+        if N > 0:
+            inv = 1.0 / N
+            for yi in nb.prange(wh):
+                for xi in range(ww):
+                    v = acc[yi, xi] * inv
+                    bgv = bg[y0 + yi, x0 + xi]
+                    if bgv < 1.0:
+                        r = (v - bgv) / (1.0 - bgv + 1e-6)
+                        acc[yi, xi] = r if r > 0.0 else 0.0
+                    else:
+                        acc[yi, xi] = 0.0
+        return acc
+
+    @nb.njit(cache=True, parallel=True, fastmath=True, boundscheck=False)
+    def _jit_score_bitmap_rescored_window_u16(
+        spread: np.ndarray,      # uint16 (H, W)
+        dx: np.ndarray, dy: np.ndarray, bins: np.ndarray,
+        bit_active: np.uint16,
+        bg: np.ndarray,
+        y0: nb.int64, x0: nb.int64,
+        wh: nb.int64, ww: nb.int64,
+    ) -> np.ndarray:
+        """Versione uint16 (polarity 16-bin) del kernel windowed."""
+        H, W = spread.shape
+        N = dx.shape[0]
+        acc = np.zeros((wh, ww), dtype=np.float32)
+        for yi in nb.prange(wh):
+            y = y0 + yi
+            for i in range(N):
+                b = bins[i]
+                mask = np.uint16(1) << b
+                if (bit_active & mask) == 0:
+                    continue
+                yy = y + dy[i]
+                if yy < 0 or yy >= H:
+                    continue
+                ddx = dx[i]
+                xi_lo = 0
+                xi_hi = ww
+                lo = -(x0 + ddx)
+                if lo > xi_lo:
+                    xi_lo = lo
+                hi = W - (x0 + ddx)
+                if hi < xi_hi:
+                    xi_hi = hi
+                for xi in range(xi_lo, xi_hi):
+                    if spread[yy, x0 + xi + ddx] & mask:
+                        acc[yi, xi] += 1.0
+        if N > 0:
+            inv = 1.0 / N
+            for yi in nb.prange(wh):
+                for xi in range(ww):
+                    v = acc[yi, xi] * inv
+                    bgv = bg[y0 + yi, x0 + xi]
+                    if bgv < 1.0:
+                        r = (v - bgv) / (1.0 - bgv + 1e-6)
+                        acc[yi, xi] = r if r > 0.0 else 0.0
+                    else:
+                        acc[yi, xi] = 0.0
+        return acc
+
     @nb.njit(cache=True, parallel=True, fastmath=True, boundscheck=False)
     def _jit_top_max_per_variant(
         spread: np.ndarray,            # uint8 (H, W)
@@ -426,6 +528,9 @@ if HAS_NUMBA:
         _jit_top_max_per_variant(
             spread, dx, dy, b, offsets, np.uint8(0xFF), bg_pv, scale_idx,
         )
+        _jit_score_bitmap_rescored_window(
+            spread, dx, dy, b, np.uint8(0xFF), bg, 4, 4, 8, 8,
+        )
         _jit_popcount_density(spread)
         spread16 = np.zeros((32, 32), dtype=np.uint16)
         _jit_score_bitmap_rescored_u16(
@@ -447,6 +552,12 @@ else:  # pragma: no cover
     def _jit_score_bitmap_rescored_strided(spread, dx, dy, bins, bit_active, bg, stride):
         raise RuntimeError("numba non disponibile")
 
+    def _jit_score_bitmap_rescored_window(spread, dx, dy, bins, bit_active, bg, y0, x0, wh, ww):
+        raise RuntimeError("numba non disponibile")
+
+    def _jit_score_bitmap_rescored_window_u16(spread, dx, dy, bins, bit_active, bg, y0, x0, wh, ww):
+        raise RuntimeError("numba non disponibile")
+
     def _jit_score_bitmap_greedy(spread, dx, dy, bins, bit_active, min_score, greediness):
         raise RuntimeError("numba non disponibile")
 
@@ -524,6 +635,39 @@ def score_bitmap_rescored(
     return np.maximum(0.0, out).astype(np.float32)
 
 
+def score_bitmap_rescored_window(
+    spread: np.ndarray, dx: np.ndarray, dy: np.ndarray, bins: np.ndarray,
+    bit_active: int, bg: np.ndarray,
+    y0: int, x0: int, wh: int, ww: int,
+) -> np.ndarray:
+    """Score rescored solo nella finestra (y0, x0, wh, ww) della scena.
+
+    Le feature campionano l'INTERA scena: feature fuori finestra ma dentro
+    scena contano correttamente (chiamare il kernel su un crop le tratta
+    come miss e azzera lo score — il bug che rendeva inutilizzabile il
+    path pyramid_propagate). Fallback no-numba: kernel pieno + slice.
+    """
+    if HAS_NUMBA and len(dx) > 0:
+        dx_c = np.ascontiguousarray(dx, dtype=np.int32)
+        dy_c = np.ascontiguousarray(dy, dtype=np.int32)
+        bins_c = np.ascontiguousarray(bins, dtype=np.int8)
+        bg_c = np.ascontiguousarray(bg, dtype=np.float32)
+        if spread.dtype == np.uint16:
+            return _jit_score_bitmap_rescored_window_u16(
+                np.ascontiguousarray(spread, dtype=np.uint16),
+                dx_c, dy_c, bins_c, np.uint16(bit_active), bg_c,
+                int(y0), int(x0), int(wh), int(ww),
+            )
+        return _jit_score_bitmap_rescored_window(
+            np.ascontiguousarray(spread, dtype=np.uint8),
+            dx_c, dy_c, bins_c, np.uint8(bit_active), bg_c,
+            int(y0), int(x0), int(wh), int(ww),
+        )
+    # Fallback (lento, solo senza numba): score full-frame + slice finestra
+    full = score_bitmap_rescored(spread, dx, dy, bins, bit_active, bg)
+    return full[y0:y0 + wh, x0:x0 + ww]
+
+
 def score_bitmap_greedy(
     spread: np.ndarray, dx: np.ndarray, dy: np.ndarray, bins: np.ndarray,
     bit_active: int, min_score: float, greediness: float,

pm2d/auto_tune.py

@@ -61,6 +61,8 @@ def detect_rotational_symmetry(
 
     center = (w / 2.0, h / 2.0)
     ref = mag
+    # ref è costante nel loop sugli angoli: centra una volta sola
+    rm = ref - ref.mean()
 
     correlations: list[tuple[float, float]] = []
     for ang in np.arange(step_deg, 360.0, step_deg):
@@ -68,7 +70,6 @@ def detect_rotational_symmetry(
         rot = cv2.warpAffine(
             mag, M, (w, h), borderValue=0.0,
         )
-        rm = ref - ref.mean()
         rs = rot - rot.mean()
         denom = np.sqrt((rm * rm).sum() * (rs * rs).sum()) + 1e-9
         c = float((rm * rs).sum() / denom)

pm2d/bench.py

@@ -0,0 +1,179 @@
+"""Benchmark suite per LineShapeMatcher.
+
+Usage:
+    python -m pm2d.bench [--quick]
+
+Misura tempi find() su 3 template-tipo × 3 scene-tipo × N config:
+- Template: rettangolo 80×80, L-shape 120×120, cerchio 150×150
+- Scene: pulita 800×600, cluttered 1080×1920, multi-pezzo 1080×1920
+- Config: baseline, polarity, gpu, pyramid_propagate, greediness=0.7
+
+Per ogni config stampa: ms/find, ms per fase (profile), n. match.
+Output tabellare per detectare regressioni in CI.
+"""
+
+from __future__ import annotations
+
+import argparse
+import time
+
+import cv2
+import numpy as np
+
+from pm2d.line_matcher import LineShapeMatcher, opencl_available
+
+
+# ---------- Sintetizzatori template/scena ----------
+
+def _tpl_rect() -> np.ndarray:
+    t = np.zeros((80, 80, 3), np.uint8)
+    cv2.rectangle(t, (15, 15), (65, 65), (255, 255, 255), 3)
+    return t
+
+
+def _tpl_lshape() -> np.ndarray:
+    t = np.zeros((120, 120, 3), np.uint8)
+    cv2.rectangle(t, (20, 20), (50, 100), (255, 255, 255), -1)
+    cv2.rectangle(t, (20, 70), (100, 100), (255, 255, 255), -1)
+    return t
+
+
+def _tpl_circle() -> np.ndarray:
+    t = np.zeros((150, 150, 3), np.uint8)
+    cv2.circle(t, (75, 75), 60, (255, 255, 255), 4)
+    return t
+
+
+def _scene_clean(W: int, H: int, n_pieces: int = 1) -> np.ndarray:
+    np.random.seed(0)
+    s = np.zeros((H, W, 3), np.uint8)
+    for _ in range(n_pieces):
+        cx = np.random.randint(80, W - 80)
+        cy = np.random.randint(80, H - 80)
+        cv2.rectangle(s, (cx - 25, cy - 25), (cx + 25, cy + 25), (255, 255, 255), 3)
+    return s
+
+
+def _scene_cluttered(W: int, H: int) -> np.ndarray:
+    np.random.seed(0)
+    s = np.random.randint(50, 200, (H, W, 3), np.uint8)
+    cv2.rectangle(s, (300, 200), (350, 250), (255, 255, 255), 3)
+    cv2.rectangle(s, (1500, 800), (1550, 850), (255, 255, 255), 3)
+    return s
+
+
+# ---------- Single benchmark ----------
+
+def _bench_config(template, scene, config_name: str,
+                  init_kw: dict, find_kw: dict,
+                  n_iter: int = 5) -> dict:
+    m = LineShapeMatcher(**init_kw)
+    t0 = time.perf_counter()
+    n_var = m.train(template)
+    t_train = time.perf_counter() - t0
+
+    # Warmup (Numba JIT)
+    m.find(scene, **find_kw)
+    m.find(scene, **find_kw)
+
+    # Run
+    times_ms = []
+    for _ in range(n_iter):
+        t0 = time.perf_counter()
+        matches = m.find(scene, **find_kw)
+        times_ms.append((time.perf_counter() - t0) * 1000.0)
+
+    # Profile (1 iter)
+    m.find(scene, profile=True, **find_kw)
+    prof = m.get_last_profile() or {}
+
+    return {
+        "config": config_name,
+        "n_variants": n_var,
+        "t_train_s": round(t_train, 3),
+        "ms_avg": round(float(np.mean(times_ms)), 1),
+        "ms_min": round(float(np.min(times_ms)), 1),
+        "ms_max": round(float(np.max(times_ms)), 1),
+        "n_matches": len(matches),
+        "profile_ms": {k: round(v, 1) for k, v in prof.items()},
+    }
+
+
+# ---------- Suite ----------
+
+CONFIGS = [
+    ("baseline",
+     {"angle_step_deg": 10, "pyramid_levels": 2},
+     {"min_score": 0.4, "verify_threshold": 0.2}),
+    ("polarity",
+     {"angle_step_deg": 10, "pyramid_levels": 2, "use_polarity": True},
+     {"min_score": 0.4, "verify_threshold": 0.2}),
+    ("propagate",
+     {"angle_step_deg": 10, "pyramid_levels": 3},
+     {"min_score": 0.4, "verify_threshold": 0.2,
+      "pyramid_propagate": True, "propagate_topk": 4}),
+    ("greedy_07",
+     {"angle_step_deg": 10, "pyramid_levels": 2},
+     {"min_score": 0.4, "verify_threshold": 0.2, "greediness": 0.7}),
+    ("stride2",
+     {"angle_step_deg": 10, "pyramid_levels": 2},
+     {"min_score": 0.4, "verify_threshold": 0.2, "coarse_stride": 2}),
+]
+
+if opencl_available():
+    CONFIGS.append(
+        ("gpu_umat",
+         {"angle_step_deg": 10, "pyramid_levels": 2, "use_gpu": True},
+         {"min_score": 0.4, "verify_threshold": 0.2})
+    )
+
+
+SCENARIOS = [
+    ("rect_80 vs scene_800x600", _tpl_rect, lambda: _scene_clean(800, 600, 1)),
+    ("lshape_120 vs scene_1080x1920_clutter",
+     _tpl_lshape, lambda: _scene_cluttered(1920, 1080)),
+    ("circle_150 vs scene_clean_3pieces",
+     _tpl_circle, lambda: _scene_clean(1920, 1080, 3)),
+]
+
+
+def run(quick: bool = False) -> int:
+    n_iter = 2 if quick else 5
+    print(f"=== PM2D Benchmark Suite ({len(SCENARIOS)} scenarios x "
+          f"{len(CONFIGS)} configs, n_iter={n_iter}) ===\n")
+    rows = []
+    for sc_name, tpl_fn, scn_fn in SCENARIOS:
+        template = tpl_fn()
+        scene = scn_fn()
+        print(f"--- Scenario: {sc_name} (tpl={template.shape}, "
+              f"scn={scene.shape}) ---")
+        for cfg_name, init_kw, find_kw in CONFIGS:
+            r = _bench_config(template, scene, cfg_name, init_kw, find_kw,
+                              n_iter=n_iter)
+            r["scenario"] = sc_name
+            rows.append(r)
+            prof_str = " ".join(
+                f"{k}={v:.1f}" for k, v in r["profile_ms"].items()
+            )
+            print(f"  {cfg_name:14s}  {r['ms_avg']:6.1f}ms  "
+                  f"(min {r['ms_min']:.1f} max {r['ms_max']:.1f})  "
+                  f"vars={r['n_variants']:3d}  "
+                  f"matches={r['n_matches']:2d}")
+            if prof_str:
+                print(f"     profile: {prof_str}")
+        print()
+    print("=== Done ===")
+    return 0
+
+
+def main(argv: list[str] | None = None) -> int:
+    p = argparse.ArgumentParser(description="PM2D benchmark suite")
+    p.add_argument("--quick", action="store_true",
+                   help="2 iterazioni per config invece di 5 (smoke test)")
+    args = p.parse_args(argv)
+    return run(quick=args.quick)
+
+
+if __name__ == "__main__":
+    import sys
+    sys.exit(main())

pm2d/dxf.py

@@ -0,0 +1,119 @@
+"""Rasterizzazione DXF → immagine template per il matcher shape-based.
+
+Il matcher lavora sui gradienti degli edge: un line-drawing pulito
+(sfondo grigio scuro, tratti chiari) è un template perfettamente valido.
+Questo modulo converte un file DXF (CAD 2D) in una bitmap grayscale
+centrata e scalata, pronta per train().
+"""
+from __future__ import annotations
+
+import io
+
+import cv2
+import numpy as np
+
+# Valori di rendering: sfondo scuro / tratto chiaro → gradiente netto
+BG_GRAY = 60
+LINE_GRAY = 220
+
+
+def _read_doc(data: bytes):
+    """Parse DXF da bytes con gestione encoding.
+
+    Prima prova ezdxf.read su StringIO (DXF ASCII utf-8 / cp1252),
+    poi fallback su ezdxf.recover che auto-rileva encoding e tollera
+    file malformati.
+    """
+    import ezdxf
+    from ezdxf import recover
+
+    for enc in ("utf-8", "cp1252"):
+        try:
+            text = data.decode(enc)
+            return ezdxf.read(io.StringIO(text))
+        except Exception:
+            # UnicodeDecodeError, DXFStructureError e simili: prossimo tentativo
+            continue
+    # Ultimo tentativo: recover lavora direttamente sui bytes
+    try:
+        doc, _auditor = recover.read(io.BytesIO(data))
+        return doc
+    except Exception as e:
+        raise ValueError(f"DXF illeggibile o corrotto: {e}") from e
+
+
+def _extract_polylines(doc, flatten_dist: float = 0.05) -> tuple[list[np.ndarray], int]:
+    """Converte le entità del modelspace in polilinee (liste di punti XY).
+
+    Entità non convertibili (non supportate da make_path) vengono saltate
+    silenziosamente ma conteggiate. Ritorna (polilinee, n_saltate).
+    """
+    from ezdxf import path as ezpath
+
+    polylines: list[np.ndarray] = []
+    skipped = 0
+    for entity in doc.modelspace():
+        try:
+            p = ezpath.make_path(entity)
+            pts = np.array(
+                [(v.x, v.y) for v in p.flattening(distance=flatten_dist)],
+                dtype=np.float64,
+            )
+            if len(pts) >= 2:
+                polylines.append(pts)
+        except Exception:
+            skipped += 1
+    return polylines, skipped
+
+
+def dxf_to_image(data: bytes, target_size: int = 512,
+                 line_thickness: int = 2, margin: int = 16) -> np.ndarray:
+    """Rasterizza un DXF in immagine grayscale (H, W) uint8.
+
+    - Scala uniforme: il lato lungo del disegno = target_size - 2*margin.
+    - Disegno centrato, asse Y CAD (su) ribaltato in convenzione immagine.
+    - Sfondo grigio scuro (60), tratti chiari (220), antialiased.
+
+    Solleva ValueError se il DXF è vuoto o illeggibile.
+    """
+    doc = _read_doc(data)
+
+    # Distanza di flattening provvisoria in unità CAD: raffinata sotto
+    # una volta nota la scala (qui serve solo per il bounding box).
+    polylines, skipped = _extract_polylines(doc)
+    if not polylines:
+        raise ValueError(
+            "DXF vuoto: nessuna entità convertibile in polilinea nel "
+            f"modelspace ({skipped} entità non supportate saltate)")
+
+    all_pts = np.vstack(polylines)
+    min_xy = all_pts.min(axis=0)
+    max_xy = all_pts.max(axis=0)
+    extent = max_xy - min_xy
+    long_side = float(extent.max())
+    if long_side <= 0:
+        raise ValueError("DXF degenere: bounding box con estensione nulla")
+
+    # Ri-flattening con distanza adattiva: ~0.25 px di errore alla scala
+    # finale (il primo pass usava una tolleranza in unità CAD arbitraria).
+    avail = max(1, target_size - 2 * margin)
+    scale = avail / long_side
+    polylines, _ = _extract_polylines(doc, flatten_dist=max(1e-9, 0.25 / scale))
+
+    canvas = np.full((target_size, target_size), BG_GRAY, dtype=np.uint8)
+    # Offset per centrare il disegno (anche sul lato corto)
+    draw_w = extent[0] * scale
+    draw_h = extent[1] * scale
+    off_x = (target_size - draw_w) / 2.0
+    off_y = (target_size - draw_h) / 2.0
+
+    for pts in polylines:
+        px = (pts[:, 0] - min_xy[0]) * scale + off_x
+        # Y CAD verso l'alto → Y immagine verso il basso
+        py = (max_xy[1] - pts[:, 1]) * scale + off_y
+        ipts = np.stack([px, py], axis=1).round().astype(np.int32)
+        cv2.polylines(canvas, [ipts], isClosed=False,
+                      color=LINE_GRAY, thickness=line_thickness,
+                      lineType=cv2.LINE_AA)
+
+    return canvas

pm2d/gui.py

@@ -12,7 +12,6 @@ Tutta la logica algoritmica vive in pm2d.matcher.EdgeShapeMatcher.
 
 from __future__ import annotations
 
-import sys
 from pathlib import Path
 from tkinter import Tk, filedialog
 import tkinter as tk
@@ -196,8 +195,10 @@ def _warp_template_edges_to_scene(
     edge = cv2.Canny(template_gray, canny_low, canny_high)
     # Matrice affine: scala + rotazione attorno al centro template, poi traslazione
     Ht, Wt = h, w
-    cx_t = (Wt - 1) / 2.0
+    # Centro coerente con la convenzione train (center = w / 2.0, no -1):
-    cy_t = (Ht - 1) / 2.0
+    # (Wt-1)/2 introduceva uno shift di 0.5px per template di lato pari.
+    cx_t = Wt / 2.0
+    cy_t = Ht / 2.0
     M = cv2.getRotationMatrix2D((cx_t, cy_t), angle_deg, scale)
     # Traslazione per portare centro template a (cx, cy) della scena
     M[0, 2] += cx - cx_t
@@ -492,7 +493,9 @@ def run(
     num_features: int = 96,
     weak_grad: float = 30.0,
     strong_grad: float = 60.0,
-    spread_radius: int = 5,
+    # 4 allineato col default del matcher: raggio 5 peggiora la precisione
+    # di rotazione (spread troppo largo appiattisce il picco angolare).
+    spread_radius: int = 4,
     pyramid_levels: int = 3,
     min_score: float = 0.55,
     max_matches: int = 25,

pm2d/matcher.py

@@ -91,8 +91,16 @@ class EdgeShapeMatcher:
         a0, a1 = self.angle_range_deg
         if self.angle_step_deg <= 0 or a0 >= a1:
             return [float(a0)]
-        n = int(np.floor((a1 - a0) / self.angle_step_deg))
+        # n+1 valori per includere l'estremo superiore del range: con il
-        return [float(a0 + i * self.angle_step_deg) for i in range(n)]
+        # solo floor un range [0, 90] step 5 si fermava a 85° (off-by-one).
+        n = int(np.floor((a1 - a0) / self.angle_step_deg)) + 1
+        angles = [float(a0 + i * self.angle_step_deg) for i in range(n)]
+        if a1 - a0 >= 360.0:
+            # Range che copre il giro completo: a0+360° è la stessa pose di
+            # a0, escludi il duplicato (variante inutile in train/find).
+            eps = 1e-6
+            angles = [a for a in angles if a < a0 + 360.0 - eps]
+        return angles
 
     def train(self, template_bgr: np.ndarray) -> int:
         """Genera varianti per tutte le combinazioni (angolo, scala)."""
@@ -222,6 +230,14 @@ class EdgeShapeMatcher:
             for y, x in zip(ys, xs):
                 candidates.append((float(res[y, x]), int(x), int(y), ti))
 
+        # Cap candidati top-level: senza limite np.where con soglia bassa
+        # può generare migliaia di candidati, ognuno con un matchTemplate
+        # full-res nel refinement. Tieni solo i migliori per score.
+        max_candidates = max(1, max_matches * 10)
+        if len(candidates) > max_candidates:
+            candidates.sort(key=lambda c: -c[0])
+            candidates = candidates[:max_candidates]
+
         # Refinement a risoluzione piena: per ogni candidato top, finestra locale
         refined: list[tuple[float, int, int, int]] = []
         margin = sf + 4
@@ -294,6 +310,10 @@ class EdgeShapeMatcher:
         )
         arrays = {f"edge_{i}": t.edge for i, t in enumerate(self.templates)}
         arrays.update({f"mask_{i}": t.mask for i, t in enumerate(self.templates)})
+        # Persisti anche il grayscale originale: senza, l'overlay edge
+        # spariva dopo load() (template_gray restava None).
+        if self.template_gray is not None:
+            arrays["template_gray"] = self.template_gray
         np.savez_compressed(path, params=params, meta=meta, **arrays)
 
     @classmethod
@@ -312,6 +332,10 @@ class EdgeShapeMatcher:
             top_score_factor=float(p[12]) if len(p) > 12 else 0.6,
         )
         m.template_size = (int(p[8]), int(p[9]))
+        # Retrocompatibilità: modelli salvati prima non hanno template_gray
+        # (resta None: overlay edge non disponibile ma find() funziona).
+        if "template_gray" in z.files:
+            m.template_gray = z["template_gray"]
         meta = z["meta"]
         for i in range(len(meta)):
             m.templates.append(

pm2d/web/server.py

@@ -12,6 +12,7 @@ from __future__ import annotations
 import hashlib
 import os
 import tempfile
+import threading
 import time
 import uuid
 from collections import OrderedDict
@@ -54,6 +55,7 @@ RECIPES_DIR.mkdir(exist_ok=True)
 
 from pm2d.line_matcher import LineShapeMatcher, Match
 from pm2d.auto_tune import auto_tune
+from pm2d.dxf import dxf_to_image
 
 
 WEB_DIR = Path(__file__).parent
@@ -64,14 +66,23 @@ STATIC_DIR.mkdir(exist_ok=True)
 CACHE_DIR = Path(tempfile.gettempdir()) / "pm2d_cache"
 CACHE_DIR.mkdir(exist_ok=True)
 
-# Cache in-memory (soft, ricaricata da disco se mancante)
+# Cache in-memory (soft, ricaricata da disco se mancante).
-_IMG_CACHE: dict[str, np.ndarray] = {}
+# LRU con capacità limitata: senza eviction le immagini si accumulavano
+# senza limite (leak di memoria su server long-running).
+_IMG_CACHE: OrderedDict[str, np.ndarray] = OrderedDict()
+_IMG_CACHE_SIZE = 64
 
 # Cache matcher addestrati: (roi_hash, params_hash) -> LineShapeMatcher
 # LRU con capacità limitata
 _MATCHER_CACHE: OrderedDict = OrderedDict()
 _MATCHER_CACHE_SIZE = 8
 
+# Lock globale matcher: gli endpoint girano nel threadpool FastAPI ma i
+# matcher condivisi (_MATCHER_CACHE, _RECIPE_MATCHERS) mutano stato interno
+# durante train()/find(). Serializzare il matching è la soluzione semplice
+# e corretta (un lock per-ricetta sarebbe over-engineering).
+_MATCHER_LOCK = threading.Lock()
+
 
 def _matcher_cache_key(roi: np.ndarray, tech: dict) -> str:
     h = hashlib.md5()
@@ -81,7 +92,10 @@ def _matcher_cache_key(roi: np.ndarray, tech: dict) -> str:
                 "min_feature_spacing",
                 "angle_min", "angle_max", "angle_step",
                 "scale_min", "scale_max", "scale_step",
-                "spread_radius", "pyramid_levels")
+                "spread_radius", "pyramid_levels",
+                # ROI poligonale: la mask cambia il training a parità di
+                # bbox → deve invalidare la cache (None = ROI rettangolare)
+                "roi_poly")
     for k in relevant:
         h.update(f"{k}={tech.get(k)}".encode())
     h.update(f"shape={roi.shape}".encode())
@@ -102,23 +116,32 @@ def _cache_put_matcher(key: str, matcher) -> None:
         _MATCHER_CACHE.popitem(last=False)
 
 
+def _img_cache_put(key: str, value: np.ndarray) -> None:
+    """Inserisce in _IMG_CACHE con eviction LRU (cap _IMG_CACHE_SIZE)."""
+    _IMG_CACHE[key] = value
+    _IMG_CACHE.move_to_end(key)
+    while len(_IMG_CACHE) > _IMG_CACHE_SIZE:
+        _IMG_CACHE.popitem(last=False)
+
+
 def _store_image(img: np.ndarray) -> str:
     iid = uuid.uuid4().hex[:12]
     cv2.imwrite(str(CACHE_DIR / f"{iid}.png"), img)
-    _IMG_CACHE[iid] = img
+    _img_cache_put(iid, img)
     return iid
 
 
 def _load_image(iid: str) -> np.ndarray | None:
     cached = _IMG_CACHE.get(iid)
     if cached is not None:
+        _IMG_CACHE.move_to_end(iid)  # LRU touch
         return cached
     p = CACHE_DIR / f"{iid}.png"
     if not p.exists():
         return None
     img = cv2.imread(str(p))
     if img is not None:
-        _IMG_CACHE[iid] = img
+        _img_cache_put(iid, img)
     return img
 
 app = FastAPI(title="PM2D Webapp", version="1.0.0")
@@ -131,6 +154,72 @@ def _encode_png(img: np.ndarray) -> bytes:
     return buf.tobytes()
 
 
+def _clamp_roi(x: int, y: int, w: int, h: int,
+               img_w: int, img_h: int) -> tuple[int, int, int, int]:
+    """Clampa la ROI dentro i limiti immagine.
+
+    Una ROI fuori immagine causava slice vuote → crash 500 negli endpoint
+    che non clampavano. Solleva 400 se la ROI risultante è degenere
+    (lato < 16 px: sotto questa soglia il train non estrae abbastanza
+    edge feature e produce 0 varianti → find() esplode con 500).
+    """
+    x = max(0, min(int(x), img_w - 1))
+    y = max(0, min(int(y), img_h - 1))
+    w = min(int(w), img_w - x)
+    h = min(int(h), img_h - y)
+    if w < 16 or h < 16:
+        raise HTTPException(
+            400, f"ROI fuori immagine o degenere: [{x}, {y}, {w}, {h}] "
+                 f"su immagine {img_w}x{img_h} (lato minimo 16 px)")
+    return x, y, w, h
+
+
+def _poly_bbox_mask(
+    roi_poly: list[list[float]], img_w: int, img_h: int,
+) -> tuple[int, int, int, int, np.ndarray]:
+    """Valida roi_poly (vertici [x, y] in coordinate IMMAGINE) e ritorna
+    (x, y, w, h, mask): bbox del poligono clampato con _clamp_roi e mask
+    uint8 (255 dentro il poligono) nel sistema di coordinate della ROI.
+
+    Solleva 400 se il poligono ha <3 punti o area degenere.
+    """
+    pts = np.asarray(roi_poly, dtype=np.float64)
+    if pts.ndim != 2 or pts.shape[1] != 2 or pts.shape[0] < 3:
+        raise HTTPException(
+            400, "roi_poly non valido: servono almeno 3 vertici [x, y]")
+    # Area con formula shoelace: poligoni collineari/degeneri → 400
+    px_, py_ = pts[:, 0], pts[:, 1]
+    area = 0.5 * abs(np.dot(px_, np.roll(py_, 1)) - np.dot(py_, np.roll(px_, 1)))
+    if area < 16.0:
+        raise HTTPException(
+            400, f"roi_poly degenere: area {area:.1f} px² troppo piccola")
+    x0 = int(np.floor(px_.min())); y0 = int(np.floor(py_.min()))
+    bw = int(np.ceil(px_.max())) - x0
+    bh = int(np.ceil(py_.max())) - y0
+    x, y, w, h = _clamp_roi(x0, y0, bw, bh, img_w, img_h)
+    # Mask nel sistema ROI: vertici ritraslati di (-x, -y)
+    mask = np.zeros((h, w), dtype=np.uint8)
+    local = np.round(pts - [x, y]).astype(np.int32)
+    cv2.fillPoly(mask, [local], 255)
+    if not mask.any():
+        raise HTTPException(
+            400, "roi_poly fuori immagine: nessun pixel utile nella mask")
+    return x, y, w, h, mask
+
+
+def _check_trained(m: "LineShapeMatcher", n_variants: int) -> None:
+    """Solleva 422 se il train non ha prodotto varianti.
+
+    Succede con ROI senza contrasto (sfondo uniforme) o troppo piccola:
+    senza questo check il find() successivo esplode con RuntimeError → 500.
+    """
+    if n_variants <= 0 or not m.variants:
+        raise HTTPException(
+            422, "La ROI non contiene abbastanza edge feature per il "
+                 "training (zona troppo uniforme o piccola): scegliere "
+                 "una regione con contorni netti")
+
+
 def _draw_matches(scene: np.ndarray, matches: list[Match],
                    template_gray: np.ndarray | None,
                    matcher: "LineShapeMatcher | None" = None) -> np.ndarray:
@@ -168,34 +257,57 @@ def _draw_matches(scene: np.ndarray, matches: list[Match],
         if template_gray is not None and matcher is not None:
             t = template_gray
             th, tw = t.shape
-            cx_t = (tw - 1) / 2.0; cy_t = (th - 1) / 2.0
+            # Centro template coerente col training: in train si usa
-            M = cv2.getRotationMatrix2D((cx_t, cy_t), m.angle_deg, m.scale)
+            # `center = (diag / 2.0, diag / 2.0)` (no -1). Usare (tw-1)/2
-            M[0, 2] += m.cx - cx_t
+            # introduceva uno shift di 0.5px per template di lato pari.
-            M[1, 2] += m.cy - cy_t
+            cx_t = tw / 2.0; cy_t = th / 2.0
-            warped_gray = cv2.warpAffine(
+            # Lavora su un CROP locale della scena di lato = diagonale del
-                t, M, (W_scene, H_scene),
+            # template ruotato+scalato (+margine), come _verify_ncc: warp
-                flags=cv2.INTER_LINEAR, borderValue=0)
+            # + Sobel sull'INTERA scena per ogni match erano O(W·H) cadauno
-            # Maschera: train_mask se disponibile, altrimenti rettangolo pieno
+            # (costosissimo su scene grandi con molti match).
-            mask_src = (matcher._train_mask if matcher._train_mask is not None
+            diag = int(np.ceil(np.hypot(tw, th) * m.scale)) + 8
-                        else np.full((th, tw), 255, dtype=np.uint8))
+            x0 = int(round(m.cx)) - diag // 2
-            warped_mask = cv2.warpAffine(
+            y0 = int(round(m.cy)) - diag // 2
-                mask_src, M, (W_scene, H_scene),
+            gx0 = max(0, x0); gy0 = max(0, y0)
-                flags=cv2.INTER_NEAREST, borderValue=0)
+            gx1 = min(W_scene, x0 + diag); gy1 = min(H_scene, y0 + diag)
-            # Erode di spread_radius per scartare la fascia di transizione
+            cw, ch_ = gx1 - gx0, gy1 - gy0
-            # bordo che produce gradient spurio
+            if cw >= 3 and ch_ >= 3:
-            er_k = max(3, 2 * matcher.spread_radius + 1)
+                M = cv2.getRotationMatrix2D((cx_t, cy_t), m.angle_deg, m.scale)
-            kernel_er = np.ones((er_k, er_k), np.uint8)
+                # Porta il centro template a (m.cx - gx0, m.cy - gy0) del crop
-            warped_mask = cv2.erode(warped_mask, kernel_er)
+                M[0, 2] += (m.cx - gx0) - cx_t
-            mag, _ = matcher._gradient(warped_gray)
+                M[1, 2] += (m.cy - gy0) - cy_t
-            if matcher.weak_grad < matcher.strong_grad:
+                warped_gray = cv2.warpAffine(
-                edge_mask = matcher._hysteresis_mask(mag)
+                    t, M, (cw, ch_),
-            else:
+                    flags=cv2.INTER_LINEAR, borderValue=0)
-                edge_mask = mag >= matcher.strong_grad
+                # Maschera: train_mask se disponibile, altrimenti rettangolo pieno
-            edge_mask = edge_mask & (warped_mask > 0)
+                mask_src = (matcher._train_mask if matcher._train_mask is not None
-            if edge_mask.any():
+                            else np.full((th, tw), 255, dtype=np.uint8))
-                edge_overlay = np.zeros_like(out)
+                warped_mask = cv2.warpAffine(
-                edge_overlay[edge_mask] = (0, 220, 0)  # verde brillante
+                    mask_src, M, (cw, ch_),
-                out = cv2.addWeighted(out, 1.0, edge_overlay, 0.6, 0)
+                    flags=cv2.INTER_NEAREST, borderValue=0)
+                # Erode minimo (3x3) per togliere SOLO artefatti border-padding
+                # (~1px di bordo nero da warpAffine borderValue=0). Erode piu'
+                # grande spostava visualmente l'edge verso l'interno e creava
+                # apparente "traslazione fissa" rispetto al bordo del pezzo.
+                kernel_er = np.ones((3, 3), np.uint8)
+                warped_mask = cv2.erode(warped_mask, kernel_er)
+                mag, _ = matcher._gradient(warped_gray)
+                if matcher.weak_grad < matcher.strong_grad:
+                    edge_mask = matcher._hysteresis_mask(mag)
+                else:
+                    edge_mask = mag >= matcher.strong_grad
+                edge_mask = edge_mask & (warped_mask > 0)
+                if edge_mask.any():
+                    # Edge ritraslati nel sistema scena: blend solo sul crop
+                    # (addWeighted lascia invariati i pixel con overlay nullo,
+                    # quindi l'output visivo è identico al full-frame).
+                    sub = out[gy0:gy1, gx0:gx1]
+                    edge_overlay = np.zeros_like(sub)
+                    # Ciano (cambiato da verde): non collide col verde dell'asse
+                    # Y dell'UCS che altrimenti scompariva nell'overlay edge.
+                    edge_overlay[edge_mask] = (255, 200, 0)  # ciano (BGR)
+                    out[gy0:gy1, gx0:gx1] = cv2.addWeighted(
+                        sub, 1.0, edge_overlay, 0.6, 0)
         L = max(20, int(L_base * m.scale))
         # X axis = rotazione di (1, 0) con cv2 matrix → (cos, -sin)
         x_end = (int(cx + L * ca), int(cy - L * sa))
@@ -228,6 +340,10 @@ class MatchParams(BaseModel):
     model_id: str
     scene_id: str
     roi: list[int]  # [x, y, w, h] nell'immagine modello
+    # ROI poligonale opzionale: vertici [x, y] in coordinate IMMAGINE
+    # (min 3 punti). Se presente, il bbox del poligono sostituisce `roi`
+    # e il training usa la mask del poligono.
+    roi_poly: list[list[float]] | None = None
     angle_min: float = 0.0
     angle_max: float = 360.0
     angle_step: float = 5.0
@@ -240,7 +356,9 @@ class MatchParams(BaseModel):
     num_features: int = 96
     weak_grad: float = 30.0
     strong_grad: float = 60.0
-    spread_radius: int = 5
+    # 4 allineato col default del matcher: raggio 5 peggiora la precisione
+    # di rotazione (spread troppo largo appiattisce il picco angolare).
+    spread_radius: int = 4
     pyramid_levels: int = 3
     verify_threshold: float = 0.4
 
@@ -307,6 +425,8 @@ class SimpleMatchParams(BaseModel):
     model_id: str
     scene_id: str
     roi: list[int]
+    # ROI poligonale opzionale (vedi MatchParams.roi_poly)
+    roi_poly: list[list[float]] | None = None
     tipo: str = "intero"              # "intero" | "parziale"
     simmetria: str = "nessuna"        # chiave SYMMETRY_TO_ANGLE_MAX
     scala: str = "fissa"              # chiave SCALE_PRESETS
@@ -401,7 +521,13 @@ def _simple_to_technical(
         "min_score": p.min_score,
         "max_matches": p.max_matches,
         "nms_radius": 0,
-        "verify_threshold": FILTRO_FP_MAP.get(p.filtro_fp, 0.35),
+        # Fallback = livello "medio" della mappa (no valore hardcoded
+        # che divergerebbe se la mappa cambia).
+        "verify_threshold": FILTRO_FP_MAP.get(p.filtro_fp, FILTRO_FP_MAP["medio"]),
+        # "off" deve disabilitare DAVVERO il verify NCC: passare solo
+        # verify_threshold=0.0 lascerebbe attivo il calcolo NCC (che può
+        # comunque scartare match con score negativo / patch uniformi).
+        "verify_ncc": p.filtro_fp != "off",
         "scale_penalty": p.penalita_scala,
     }
 
@@ -520,6 +646,26 @@ async def upload(file: UploadFile = File(...)):
     return UploadResp(id=iid, width=img.shape[1], height=img.shape[0])
 
 
+@app.post("/upload_dxf", response_model=UploadResp)
+async def upload_dxf(file: UploadFile = File(...), size: int = 512):
+    """Upload DXF: rasterizza il CAD in template grayscale e lo salva
+    nella cache immagini come un normale upload.
+
+    Query param `size` = lato del canvas (clamp 128..2048).
+    """
+    size = max(128, min(2048, int(size)))
+    data = await file.read()
+    try:
+        gray = dxf_to_image(data, target_size=size)
+    except ValueError as e:
+        raise HTTPException(400, f"DXF non valido: {e}")
+    # _store_image salva PNG e gli endpoint a valle (cvtColor BGR2GRAY su
+    # roi_img, _load_image con IMREAD_COLOR) si aspettano 3 canali → BGR.
+    img = cv2.cvtColor(gray, cv2.COLOR_GRAY2BGR)
+    iid = _store_image(img)
+    return UploadResp(id=iid, width=img.shape[1], height=img.shape[0])
+
+
 @app.get("/image/{iid}/raw")
 def image_raw(iid: str):
     img = _load_image(iid)
@@ -534,10 +680,14 @@ def match(p: MatchParams):
     scene = _load_image(p.scene_id)
     if model is None or scene is None:
         raise HTTPException(404, "Immagini non trovate")
-    x, y, w, h = p.roi
+    # ROI poligonale: bbox derivato dal poligono + mask per il training
-    x = max(0, x); y = max(0, y)
+    train_mask = None
-    w = max(1, min(w, model.shape[1] - x))
+    if p.roi_poly is not None:
-    h = max(1, min(h, model.shape[0] - y))
+        x, y, w, h, train_mask = _poly_bbox_mask(
+            p.roi_poly, model.shape[1], model.shape[0])
+    else:
+        x, y, w, h = p.roi
+        x, y, w, h = _clamp_roi(x, y, w, h, model.shape[1], model.shape[0])
     roi_img = model[y:y + h, x:x + w]
 
     tech_for_cache = {
@@ -549,35 +699,43 @@ def match(p: MatchParams):
         "scale_step": p.scale_step,
         "spread_radius": p.spread_radius,
         "pyramid_levels": p.pyramid_levels,
+        # Tuple per repr stabile nella cache key (None = rettangolare)
+        "roi_poly": (tuple(map(tuple, p.roi_poly))
+                     if p.roi_poly is not None else None),
     }
     key = _matcher_cache_key(roi_img, tech_for_cache)
-    m = _cache_get_matcher(key)
+    # Lock globale: matcher condivisi tra thread del pool FastAPI
-    if m is None:
+    with _MATCHER_LOCK:
-        m = LineShapeMatcher(
+        m = _cache_get_matcher(key)
-            num_features=p.num_features,
+        if m is None:
-            weak_grad=p.weak_grad, strong_grad=p.strong_grad,
+            m = LineShapeMatcher(
-            angle_range_deg=(p.angle_min, p.angle_max),
+                num_features=p.num_features,
-            angle_step_deg=p.angle_step,
+                weak_grad=p.weak_grad, strong_grad=p.strong_grad,
-            scale_range=(p.scale_min, p.scale_max),
+                angle_range_deg=(p.angle_min, p.angle_max),
-            scale_step=p.scale_step,
+                angle_step_deg=p.angle_step,
-            spread_radius=p.spread_radius,
+                scale_range=(p.scale_min, p.scale_max),
-            pyramid_levels=p.pyramid_levels,
+                scale_step=p.scale_step,
+                spread_radius=p.spread_radius,
+                pyramid_levels=p.pyramid_levels,
+            )
+            t0 = time.time(); n = m.train(roi_img, train_mask); t_train = time.time() - t0
+            _check_trained(m, n)
+            _cache_put_matcher(key, m)
+        else:
+            n = len(m.variants); t_train = 0.0
+        nms = p.nms_radius if p.nms_radius > 0 else None
+        t0 = time.time()
+        matches = m.find(
+            scene, min_score=p.min_score, max_matches=p.max_matches,
+            nms_radius=nms, verify_threshold=p.verify_threshold,
+            # Soglia 0 = filtro FP disattivato: skippa proprio il calcolo NCC
+            verify_ncc=p.verify_threshold > 0.0,
         )
-        t0 = time.time(); n = m.train(roi_img); t_train = time.time() - t0
+        t_find = time.time() - t0
-        _cache_put_matcher(key, m)
-    else:
-        n = len(m.variants); t_train = 0.0
-    nms = p.nms_radius if p.nms_radius > 0 else None
-    t0 = time.time()
-    matches = m.find(
-        scene, min_score=p.min_score, max_matches=p.max_matches,
-        nms_radius=nms, verify_threshold=p.verify_threshold,
-    )
-    t_find = time.time() - t0
 
-    # Render annotated image
+        # Render annotated image
-    tg = cv2.cvtColor(roi_img, cv2.COLOR_BGR2GRAY)
+        tg = cv2.cvtColor(roi_img, cv2.COLOR_BGR2GRAY)
-    annotated = _draw_matches(scene, matches, tg, matcher=m)
+        annotated = _draw_matches(scene, matches, tg, matcher=m)
     ann_id = _store_image(annotated)
 
     return MatchResp(
@@ -603,59 +761,71 @@ def match_simple(p: SimpleMatchParams):
     scene = _load_image(p.scene_id)
     if model is None or scene is None:
         raise HTTPException(404, "Immagini non trovate")
-    x, y, w, h = p.roi
+    # ROI poligonale: bbox derivato dal poligono + mask per il training
-    x = max(0, x); y = max(0, y)
+    train_mask = None
-    w = max(1, min(w, model.shape[1] - x))
+    if p.roi_poly is not None:
-    h = max(1, min(h, model.shape[0] - y))
+        x, y, w, h, train_mask = _poly_bbox_mask(
+            p.roi_poly, model.shape[1], model.shape[0])
+    else:
+        x, y, w, h = p.roi
+        x, y, w, h = _clamp_roi(x, y, w, h, model.shape[1], model.shape[0])
     roi_img = model[y:y + h, x:x + w]
 
     tech = _simple_to_technical(p, roi_img)
+    # Tuple per repr stabile nella cache key (None = rettangolare)
+    tech["roi_poly"] = (tuple(map(tuple, p.roi_poly))
+                        if p.roi_poly is not None else None)
 
     key = _matcher_cache_key(roi_img, tech)
     # Halcon-mode init params: incidono sul training, includere in cache key
     halcon_init_key = f"|pol={p.use_polarity}|gpu={p.use_gpu}"
     key = key + halcon_init_key
-    m = _cache_get_matcher(key)
+    # Lock globale: matcher condivisi tra thread del pool FastAPI
-    if m is None:
+    with _MATCHER_LOCK:
-        m = LineShapeMatcher(
+        m = _cache_get_matcher(key)
-            num_features=tech["num_features"],
+        if m is None:
-            weak_grad=tech["weak_grad"], strong_grad=tech["strong_grad"],
+            m = LineShapeMatcher(
-            angle_range_deg=(tech["angle_min"], tech["angle_max"]),
+                num_features=tech["num_features"],
-            angle_step_deg=tech["angle_step"],
+                weak_grad=tech["weak_grad"], strong_grad=tech["strong_grad"],
-            scale_range=(tech["scale_min"], tech["scale_max"]),
+                angle_range_deg=(tech["angle_min"], tech["angle_max"]),
-            scale_step=tech["scale_step"],
+                angle_step_deg=tech["angle_step"],
-            spread_radius=tech["spread_radius"],
+                scale_range=(tech["scale_min"], tech["scale_max"]),
-            min_feature_spacing=tech.get("min_feature_spacing", 3),
+                scale_step=tech["scale_step"],
-            pyramid_levels=tech["pyramid_levels"],
+                spread_radius=tech["spread_radius"],
-            use_polarity=p.use_polarity,
+                min_feature_spacing=tech.get("min_feature_spacing", 3),
-            use_gpu=p.use_gpu,
+                pyramid_levels=tech["pyramid_levels"],
+                use_polarity=p.use_polarity,
+                use_gpu=p.use_gpu,
+            )
+            t0 = time.time(); n = m.train(roi_img, train_mask); t_train = time.time() - t0
+            _check_trained(m, n)
+            _cache_put_matcher(key, m)
+        else:
+            n = len(m.variants); t_train = 0.0
+        nms = tech["nms_radius"] if tech["nms_radius"] > 0 else None
+        search_roi_t = tuple(p.search_roi) if p.search_roi else None
+        t0 = time.time()
+        matches = m.find(
+            scene, min_score=tech["min_score"], max_matches=tech["max_matches"],
+            nms_radius=nms, verify_threshold=tech["verify_threshold"],
+            # filtro_fp="off" → verify NCC davvero disabilitato
+            verify_ncc=tech.get("verify_ncc", True),
+            scale_penalty=tech.get("scale_penalty", 0.0),
+            # Halcon-mode flags
+            min_recall=p.min_recall,
+            use_soft_score=p.use_soft_score,
+            subpixel_lm=p.subpixel_lm,
+            nms_iou_threshold=p.nms_iou_threshold,
+            coarse_stride=p.coarse_stride,
+            pyramid_propagate=p.pyramid_propagate,
+            greediness=p.greediness,
+            refine_pose_joint=p.refine_pose_joint,
+            search_roi=search_roi_t,
         )
-        t0 = time.time(); n = m.train(roi_img); t_train = time.time() - t0
+        t_find = time.time() - t0
-        _cache_put_matcher(key, m)
-    else:
-        n = len(m.variants); t_train = 0.0
-    nms = tech["nms_radius"] if tech["nms_radius"] > 0 else None
-    search_roi_t = tuple(p.search_roi) if p.search_roi else None
-    t0 = time.time()
-    matches = m.find(
-        scene, min_score=tech["min_score"], max_matches=tech["max_matches"],
-        nms_radius=nms, verify_threshold=tech["verify_threshold"],
-        scale_penalty=tech.get("scale_penalty", 0.0),
-        # Halcon-mode flags
-        min_recall=p.min_recall,
-        use_soft_score=p.use_soft_score,
-        subpixel_lm=p.subpixel_lm,
-        nms_iou_threshold=p.nms_iou_threshold,
-        coarse_stride=p.coarse_stride,
-        pyramid_propagate=p.pyramid_propagate,
-        greediness=p.greediness,
-        refine_pose_joint=p.refine_pose_joint,
-        search_roi=search_roi_t,
-    )
-    t_find = time.time() - t0
 
-    tg = cv2.cvtColor(roi_img, cv2.COLOR_BGR2GRAY)
+        tg = cv2.cvtColor(roi_img, cv2.COLOR_BGR2GRAY)
-    annotated = _draw_matches(scene, matches, tg, matcher=m)
+        annotated = _draw_matches(scene, matches, tg, matcher=m)
     ann_id = _store_image(annotated)
 
     return MatchResp(
@@ -675,6 +845,7 @@ def tune(p: TuneParams):
     if model is None:
         raise HTTPException(404, "Immagine non trovata")
     x, y, w, h = p.roi
+    x, y, w, h = _clamp_roi(x, y, w, h, model.shape[1], model.shape[0])
     roi_img = model[y:y + h, x:x + w]
     t = auto_tune(roi_img)
     # Esponi parametri tecnici + meta diagnostica (_self_score, _validation,
@@ -688,6 +859,8 @@ class SaveRecipeParams(BaseModel):
     model_id: str
     scene_id: str | None = None
     roi: list[int]
+    # ROI poligonale opzionale (vedi MatchParams.roi_poly)
+    roi_poly: list[list[float]] | None = None
     # Riusa stessi param simple per training equivalente
     tipo: str = "intero"
     simmetria: str = "nessuna"
@@ -807,7 +980,14 @@ def save_recipe(p: SaveRecipeParams):
     model = _load_image(p.model_id)
     if model is None:
         raise HTTPException(404, "Modello non trovato")
-    x, y, w, h = p.roi
+    # ROI poligonale: bbox derivato dal poligono + mask per il training
+    train_mask = None
+    if p.roi_poly is not None:
+        x, y, w, h, train_mask = _poly_bbox_mask(
+            p.roi_poly, model.shape[1], model.shape[0])
+    else:
+        x, y, w, h = p.roi
+        x, y, w, h = _clamp_roi(x, y, w, h, model.shape[1], model.shape[0])
     roi_img = model[y:y + h, x:x + w]
     sp = SimpleMatchParams(
         model_id=p.model_id, scene_id=p.scene_id or p.model_id, roi=p.roi,
@@ -832,7 +1012,10 @@ def save_recipe(p: SaveRecipeParams):
         use_polarity=p.use_polarity,
         use_gpu=p.use_gpu,
     )
-    m.train(roi_img)
+    # Lock globale: serializza il training pesante col matching in corso
+    with _MATCHER_LOCK:
+        n_var = m.train(roi_img, train_mask)
+    _check_trained(m, n_var)
     safe_name = "".join(c for c in p.name if c.isalnum() or c in "._-")
     if not safe_name:
         raise HTTPException(400, "Nome ricetta non valido")
@@ -858,6 +1041,14 @@ _RECIPE_MATCHERS: OrderedDict = OrderedDict()
 _RECIPE_MATCHERS_SIZE = 4
 
 
+def _recipe_matchers_put(name: str, matcher: LineShapeMatcher) -> None:
+    """Inserisce in _RECIPE_MATCHERS con eviction LRU (cap _RECIPE_MATCHERS_SIZE)."""
+    _RECIPE_MATCHERS[name] = matcher
+    _RECIPE_MATCHERS.move_to_end(name)
+    while len(_RECIPE_MATCHERS) > _RECIPE_MATCHERS_SIZE:
+        _RECIPE_MATCHERS.popitem(last=False)
+
+
 @app.post("/recipes/{name}/load")
 def load_recipe(name: str):
     """Carica ricetta .npz e popola cache matcher in memoria.
@@ -872,10 +1063,8 @@ def load_recipe(name: str):
     if not path.is_file():
         raise HTTPException(404, f"Ricetta non trovata: {safe_name}")
     m = LineShapeMatcher.load_model(str(path))
-    _RECIPE_MATCHERS[safe_name] = m
+    with _MATCHER_LOCK:
-    _RECIPE_MATCHERS.move_to_end(safe_name)
+        _recipe_matchers_put(safe_name, m)
-    while len(_RECIPE_MATCHERS) > _RECIPE_MATCHERS_SIZE:
-        _RECIPE_MATCHERS.popitem(last=False)
     return {
         "name": safe_name,
         "n_variants": len(m.variants),
@@ -899,7 +1088,9 @@ class RecipeMatchParams(BaseModel):
     greediness: float = 0.0
     refine_pose_joint: bool = False
     search_roi: list[int] | None = None
-    verify_threshold: float = 0.5
+    # Allineato a MatchParams.verify_threshold (0.4): valori divergenti
+    # davano risultati diversi tra /match e /match_recipe a parità di scena.
+    verify_threshold: float = 0.4
     scale_penalty: float = 0.0
 
 
@@ -907,37 +1098,44 @@ class RecipeMatchParams(BaseModel):
 def match_recipe(p: RecipeMatchParams):
     """Match con ricetta pre-trained: zero training, solo find."""
     safe_name = p.recipe if p.recipe.endswith(".npz") else f"{p.recipe}.npz"
-    m = _RECIPE_MATCHERS.get(safe_name)
-    if m is None:
-        # Auto-load on demand
-        path = RECIPES_DIR / safe_name
-        if not path.is_file():
-            raise HTTPException(404, f"Ricetta non trovata: {safe_name}")
-        m = LineShapeMatcher.load_model(str(path))
-        _RECIPE_MATCHERS[safe_name] = m
     scene = _load_image(p.scene_id)
     if scene is None:
         raise HTTPException(404, "Scena non trovata")
     search_roi_t = tuple(p.search_roi) if p.search_roi else None
-    t0 = time.time()
+    # Lock globale: matcher condivisi tra thread del pool FastAPI
-    matches = m.find(
+    with _MATCHER_LOCK:
-        scene,
+        m = _RECIPE_MATCHERS.get(safe_name)
-        min_score=p.min_score, max_matches=p.max_matches,
+        if m is not None:
-        verify_threshold=p.verify_threshold,
+            _RECIPE_MATCHERS.move_to_end(safe_name)  # LRU touch
-        scale_penalty=p.scale_penalty,
+        else:
-        min_recall=p.min_recall,
+            # Auto-load on demand: stessa eviction LRU di load_recipe
-        use_soft_score=p.use_soft_score,
+            # (senza cap la cache cresceva senza limite)
-        subpixel_lm=p.subpixel_lm,
+            path = RECIPES_DIR / safe_name
-        nms_iou_threshold=p.nms_iou_threshold,
+            if not path.is_file():
-        coarse_stride=p.coarse_stride,
+                raise HTTPException(404, f"Ricetta non trovata: {safe_name}")
-        pyramid_propagate=p.pyramid_propagate,
+            m = LineShapeMatcher.load_model(str(path))
-        greediness=p.greediness,
+            _recipe_matchers_put(safe_name, m)
-        refine_pose_joint=p.refine_pose_joint,
+        t0 = time.time()
-        search_roi=search_roi_t,
+        matches = m.find(
-    )
+            scene,
-    t_find = time.time() - t0
+            min_score=p.min_score, max_matches=p.max_matches,
-    tg = m.template_gray if m.template_gray is not None else np.zeros((1, 1), np.uint8)
+            verify_threshold=p.verify_threshold,
-    annotated = _draw_matches(scene, matches, tg, matcher=m)
+            # Soglia 0 = filtro FP disattivato: skippa proprio il calcolo NCC
+            verify_ncc=p.verify_threshold > 0.0,
+            scale_penalty=p.scale_penalty,
+            min_recall=p.min_recall,
+            use_soft_score=p.use_soft_score,
+            subpixel_lm=p.subpixel_lm,
+            nms_iou_threshold=p.nms_iou_threshold,
+            coarse_stride=p.coarse_stride,
+            pyramid_propagate=p.pyramid_propagate,
+            greediness=p.greediness,
+            refine_pose_joint=p.refine_pose_joint,
+            search_roi=search_roi_t,
+        )
+        t_find = time.time() - t0
+        tg = m.template_gray if m.template_gray is not None else np.zeros((1, 1), np.uint8)
+        annotated = _draw_matches(scene, matches, tg, matcher=m)
     ann_id = _store_image(annotated)
     return MatchResp(
         matches=[MatchResult(

pm2d/web/static/app.js

@@ -20,6 +20,10 @@ const state = {
   model: null, scene: null, roi: null, drag: null,
   matches: [], annotatedImg: null,
   active_recipe: null,  // V: ricetta caricata (string nome) o null
+  // ROI poligonale: vertici [x, y] in coordinate immagine modello
+  polyMode: false, polyPts: [], polyClosed: false,
+  // Export JSON: ultimo match completo (params + risposta)
+  lastMatch: null,
 };
 
 // ---------- Forms ----------
@@ -148,6 +152,15 @@ async function uploadToFolder(file) {
   return await r.json();
 }
 
+async function uploadDxf(file) {
+  // DXF: rasterizzato server-side in template grayscale (vedi pm2d/dxf.py)
+  const fd = new FormData();
+  fd.append("file", file);
+  const r = await fetch("/upload_dxf", { method: "POST", body: fd });
+  if (!r.ok) throw new Error(await r.text());
+  return await r.json();
+}
+
 async function refreshPickers() {
   const {files, dir} = await fetchImagesList();
   buildThumbPicker("picker-model", files, onSelectModel);
@@ -222,6 +235,7 @@ async function onSelectModel(filename) {
     const img = await loadImage(`/image/${meta.id}/raw`);
     state.model = { id: meta.id, w: meta.width, h: meta.height, img };
     state.roi = null;
+    state.polyPts = []; state.polyClosed = false;  // B: scarta poligono stale
     document.getElementById("roi-info").textContent = "ROI: (nessuna)";
     setStatus(`Modello: ${filename} ${meta.width}x${meta.height} — trascina ROI`);
     renderModel();
@@ -262,12 +276,36 @@ function renderModel() {
   state.model.scale = fit.sc;
   state.model.ox = fit.ox; state.model.oy = fit.oy;
   ctx.drawImage(state.model.img, fit.ox, fit.oy, fit.dw, fit.dh);
-  if (state.roi) {
+  if (state.roi && !state.polyMode) {
     const [x, y, w, h] = state.roi;
     ctx.strokeStyle = "#00ff80"; ctx.lineWidth = 2;
     ctx.strokeRect(fit.ox + x * fit.sc, fit.oy + y * fit.sc,
                    w * fit.sc, h * fit.sc);
   }
+  // ROI poligonale: path aperto giallo, chiuso verde con fill semitrasparente
+  if (state.polyMode && state.polyPts.length > 0) {
+    ctx.beginPath();
+    state.polyPts.forEach(([px, py], i) => {
+      const cx = fit.ox + px * fit.sc;
+      const cy = fit.oy + py * fit.sc;
+      if (i === 0) ctx.moveTo(cx, cy); else ctx.lineTo(cx, cy);
+    });
+    if (state.polyClosed) {
+      ctx.closePath();
+      ctx.fillStyle = "rgba(0, 255, 128, 0.18)";
+      ctx.fill();
+      ctx.strokeStyle = "#00ff80";
+    } else {
+      ctx.strokeStyle = "#ffff00";
+    }
+    ctx.lineWidth = 2;
+    ctx.stroke();
+    // Vertici come quadratini
+    ctx.fillStyle = state.polyClosed ? "#00ff80" : "#ffff00";
+    for (const [px, py] of state.polyPts) {
+      ctx.fillRect(fit.ox + px * fit.sc - 2, fit.oy + py * fit.sc - 2, 4, 4);
+    }
+  }
   if (state.drag) {
     ctx.strokeStyle = "#ffff00";
     ctx.setLineDash([4, 2]); ctx.lineWidth = 2;
@@ -301,10 +339,35 @@ function setupROI() {
   const cnv = document.getElementById("c-model");
   cnv.addEventListener("mousedown", (e) => {
     if (!state.model) return;
+    if (state.polyMode) return;  // poly mode: gestito da click/dblclick
     const p = canvasPos(cnv, e);
     state.drag = { x0: p.x, y0: p.y, x1: p.x, y1: p.y };
     renderModel();
   });
+  // ROI poligonale: click aggiunge vertice, doppio click chiude
+  cnv.addEventListener("click", (e) => {
+    if (!state.model || !state.polyMode || state.polyClosed) return;
+    const m = state.model;
+    const p = canvasPos(cnv, e);
+    const ix = (p.x - m.ox) / m.scale;
+    const iy = (p.y - m.oy) / m.scale;
+    if (ix < 0 || iy < 0 || ix > m.w || iy > m.h) return;  // fuori immagine
+    const last = state.polyPts[state.polyPts.length - 1];
+    // Dedup: il dblclick genera anche 2 click ravvicinati
+    if (last && Math.hypot(ix - last[0], iy - last[1]) < 3) return;
+    state.polyPts.push([
+      Math.max(0, Math.min(Math.round(ix), m.w - 1)),
+      Math.max(0, Math.min(Math.round(iy), m.h - 1)),
+    ]);
+    document.getElementById("roi-info").textContent =
+      `Poligono: ${state.polyPts.length} vertici (doppio click o "Chiudi" per chiudere)`;
+    renderModel();
+  });
+  cnv.addEventListener("dblclick", (e) => {
+    if (!state.polyMode) return;
+    e.preventDefault();
+    closePoly();
+  });
   cnv.addEventListener("mousemove", (e) => {
     if (!state.drag) return;
     const p = canvasPos(cnv, e);
@@ -331,6 +394,41 @@ function setupROI() {
   });
 }
 
+// ---------- ROI poligonale ----------
+function closePoly() {
+  if (!state.polyMode || state.polyClosed) return;
+  if (state.polyPts.length < 3) {
+    setStatus("Servono almeno 3 vertici per chiudere il poligono");
+    return;
+  }
+  state.polyClosed = true;
+  // ROI = bounding box del poligono (il server riceve anche roi_poly)
+  const xs = state.polyPts.map((p) => p[0]);
+  const ys = state.polyPts.map((p) => p[1]);
+  const x0 = Math.min(...xs), y0 = Math.min(...ys);
+  const w = Math.max(...xs) - x0, h = Math.max(...ys) - y0;
+  state.roi = [x0, y0, Math.max(1, w), Math.max(1, h)];
+  document.getElementById("roi-info").textContent =
+    `Poligono: ${state.polyPts.length} vertici, bbox ${w}x${h} @ (${x0}, ${y0})`;
+  renderModel();
+}
+
+function resetPoly() {
+  state.polyPts = [];
+  state.polyClosed = false;
+  state.roi = null;
+  document.getElementById("roi-info").textContent = state.polyMode
+    ? "Poligono: clicca sul modello per aggiungere vertici"
+    : "ROI: (nessuna)";
+  renderModel();
+}
+
+function getRoiPoly() {
+  // Poligono valido solo se in modalità poly e chiuso
+  return (state.polyMode && state.polyClosed && state.polyPts.length >= 3)
+    ? state.polyPts : null;
+}
+
 // ---------- Match action ----------
 async function doMatchRecipe() {
   if (!state.scene) { setStatus("Carica scena"); return; }
@@ -352,6 +450,12 @@ async function doMatchRecipe() {
   if (!r.ok) { setStatus(`Errore: ${await r.text()}`); return; }
   const data = await r.json();
   state.matches = data.matches;
+  // C: salva tutto per "Esporta JSON"
+  state.lastMatch = {
+    endpoint: "/match_recipe", params: body, response: data,
+    image_id: state.scene.id,
+  };
+  document.getElementById("btn-export-json").disabled = false;
   state.annotatedImg = await loadImage(
     `/image/${data.annotated_id}/raw?t=${Date.now()}`);
   renderScene();
@@ -371,7 +475,11 @@ async function doMatch() {
   }
   if (!state.model) { setStatus("Carica modello"); return; }
   if (!state.scene) { setStatus("Carica scena"); return; }
+  if (state.polyMode && !state.polyClosed) {
+    setStatus("Chiudi il poligono (doppio click o bottone Chiudi)"); return;
+  }
   if (!state.roi) { setStatus("Seleziona ROI sul modello"); return; }
+  const roiPoly = getRoiPoly();
   const user = readUserParams();
   const adv = readAdvancedOverrides();
   setStatus("Match in corso...");
@@ -397,6 +505,7 @@ async function doMatch() {
     const angMax = SYM_MAP[user.simmetria] ?? 360;
     body = {
       model_id: state.model.id, scene_id: state.scene.id, roi: state.roi,
+      roi_poly: roiPoly,
       angle_min: 0, angle_max: angMax,
       angle_step: PREC_MAP[user.precisione] ?? 5,
       scale_min: smin, scale_max: smax, scale_step: sstep,
@@ -412,6 +521,7 @@ async function doMatch() {
   } else {
     body = {
       model_id: state.model.id, scene_id: state.scene.id, roi: state.roi,
+      roi_poly: roiPoly,
       ...user,
     };
   }
@@ -426,6 +536,12 @@ async function doMatch() {
   }
   const data = await r.json();
   state.matches = data.matches;
+  // C: salva tutto per "Esporta JSON"
+  state.lastMatch = {
+    endpoint: url, params: body, response: data,
+    image_id: state.scene.id,
+  };
+  document.getElementById("btn-export-json").disabled = false;
   state.annotatedImg = await loadImage(
     `/image/${data.annotated_id}/raw?t=${Date.now()}`);
   renderScene();
@@ -461,6 +577,38 @@ function setStatus(s) {
   document.getElementById("status").textContent = s;
 }
 
+// ---------- C: Export JSON risultati ----------
+function exportMatchJSON() {
+  if (!state.lastMatch) {
+    alert("Nessun match da esportare: esegui prima un MATCH.");
+    return;
+  }
+  const lm = state.lastMatch;
+  const payload = {
+    timestamp: new Date().toISOString(),
+    image_id: lm.image_id,
+    endpoint: lm.endpoint,
+    params: lm.params,
+    matches: lm.response.matches.map((m) => ({
+      cx: m.cx, cy: m.cy, angle_deg: m.angle_deg,
+      scale: m.scale, score: m.score, bbox: m.bbox_poly,
+    })),
+    train_time: lm.response.train_time,
+    find_time: lm.response.find_time,
+    num_variants: lm.response.num_variants,
+  };
+  const blob = new Blob([JSON.stringify(payload, null, 2)],
+                        { type: "application/json" });
+  const a = document.createElement("a");
+  a.href = URL.createObjectURL(blob);
+  const ts = new Date().toISOString().replace(/[:.]/g, "-");
+  a.download = `pm2d_match_${ts}.json`;
+  document.body.appendChild(a);
+  a.click();
+  a.remove();
+  URL.revokeObjectURL(a.href);
+}
+
 // ---------- Init ----------
 // ---------- Edge preview (clean rumore) ----------
 let _epDebounce = null;
@@ -734,6 +882,7 @@ async function saveRecipe() {
     model_id: state.model.id,
     scene_id: state.scene?.id || state.model.id,
     roi: state.roi,
+    roi_poly: getRoiPoly(),
     tipo: user.tipo,
     simmetria: user.simmetria,
     scala: user.scala,
@@ -777,6 +926,24 @@ window.addEventListener("DOMContentLoaded", async () => {
   upEl.addEventListener("change", async (e) => {
     const f = e.target.files[0];
     if (!f) return;
+    // A: file DXF → rasterizza server-side e usa direttamente come modello
+    if (f.name.toLowerCase().endsWith(".dxf")) {
+      setStatus(`Rasterizzazione DXF ${f.name}...`);
+      try {
+        const meta = await uploadDxf(f);
+        const img = await loadImage(`/image/${meta.id}/raw`);
+        state.model = { id: meta.id, w: meta.width, h: meta.height, img };
+        state.roi = null;
+        resetPoly();
+        setStatus(`DXF ${f.name} rasterizzato ` +
+                  `${meta.width}x${meta.height} — disegna ROI sul modello`);
+        renderModel();
+      } catch (err) {
+        setStatus(`Errore DXF: ${err.message}`);
+      }
+      e.target.value = "";
+      return;
+    }
     setStatus(`Caricamento ${f.name} nella cartella...`);
     try {
       const res = await uploadToFolder(f);
@@ -789,6 +956,18 @@ window.addEventListener("DOMContentLoaded", async () => {
   });
   document.getElementById("btn-match").addEventListener("click", doMatch);
   document.getElementById("btn-autotune").addEventListener("click", doAutoTune);
+  // B: ROI poligonale (toggle + chiudi + reset)
+  document.getElementById("roi-poly-toggle").addEventListener("change", (e) => {
+    state.polyMode = e.target.checked;
+    document.getElementById("btn-poly-close").disabled = !state.polyMode;
+    document.getElementById("btn-poly-reset").disabled = !state.polyMode;
+    resetPoly();
+  });
+  document.getElementById("btn-poly-close").addEventListener("click", closePoly);
+  document.getElementById("btn-poly-reset").addEventListener("click", resetPoly);
+  // C: export JSON ultimo match
+  document.getElementById("btn-export-json").addEventListener("click",
+    exportMatchJSON);
   document.getElementById("btn-save-recipe").addEventListener("click",
     saveRecipe);
   document.getElementById("btn-load-recipe").addEventListener("click",

pm2d/web/static/index.html

@@ -30,9 +30,9 @@
             title="Analizza ROI e derivata parametri ottimali (Halcon-style)">
       ⚙ Auto-tune
     </button>
-    <label class="btn" title="Carica nuovo file nella cartella immagini">
+    <label class="btn" title="Carica nuovo file nella cartella immagini (immagine o DXF)">
       ⬆ Carica file
-      <input type="file" id="file-upload" accept="image/*" hidden>
+      <input type="file" id="file-upload" accept="image/*,.dxf" hidden>
     </label>
     <span id="status">Seleziona modello, disegna ROI, seleziona scena</span>
   </div>
@@ -45,6 +45,15 @@
       <canvas id="c-model" width="380" height="420"></canvas>
     </div>
     <div id="roi-info">ROI: (nessuna)</div>
+    <div id="roi-poly-bar" style="display:flex; gap:6px; align-items:center; margin-top:6px">
+      <label style="display:flex; gap:4px; align-items:center; font-size:12px; cursor:pointer">
+        <input type="checkbox" id="roi-poly-toggle"> ROI poligonale
+      </label>
+      <button class="btn" id="btn-poly-close" type="button" disabled
+              title="Chiude il poligono (equivale al doppio click)">Chiudi</button>
+      <button class="btn" id="btn-poly-reset" type="button" disabled
+              title="Cancella i vertici del poligono">Reset</button>
+    </div>
     <details id="edge-preview-panel" style="margin-top:10px">
       <summary>🔬 Anteprima edge / pulizia rumore</summary>
       <div style="font-size:11px; color:#aaa; margin:4px 0">
@@ -102,8 +111,8 @@
     <div class="field">
       <label>Simmetria</label>
       <select id="p-simmetria">
+        <option value="nessuna" selected>Nessuna (0..360°)</option>
         <option value="invariante">Invariante (cerchi — no rotazione)</option>
-        <option value="nessuna">Nessuna (0..360°)</option>
         <option value="bilaterale">Bilaterale (speculare 180°)</option>
         <option value="rot_3">Rotazionale 3× (120°)</option>
         <option value="rot_4">Rotazionale 4× (90°)</option>
@@ -248,6 +257,11 @@
     <div class="kv"><span>find:</span><span id="t-find">-</span></div>
     <div class="kv"><span>varianti:</span><span id="t-var">-</span></div>
     <div class="kv"><span>match:</span><span id="t-match">-</span></div>
+    <button class="btn" id="btn-export-json" type="button" disabled
+            style="margin-top:8px; width:100%"
+            title="Scarica i risultati dell'ultimo match in formato JSON">
+      ⬇ Esporta JSON
+    </button>
 
     <details id="diag-panel" style="margin-top:10px">
       <summary>🔍 Diagnostica (CC)</summary>

pyproject.toml

@@ -10,12 +10,24 @@ dependencies = [
     "pillow>=12.2.0",
     "python-multipart>=0.0.26",
     "uvicorn[standard]>=0.34",
+    "ezdxf>=1.3",
 ]
 
 [project.scripts]
 pm2d-eval = "pm2d.eval:main"
+pm2d-bench = "pm2d.bench:main"
 
 [dependency-groups]
 dev = [
     "httpx>=0.28.1",
+    "pytest>=8.0",
+    "ruff>=0.8",
 ]
+
+[tool.ruff]
+line-length = 100
+
+[tool.ruff.lint]
+select = ["E", "F"]
+# E702 (a; b) ed E402 (import dopo codice) sono idiomi voluti del codebase
+ignore = ["E501", "E741", "E702", "E731", "E402"]

tests/conftest.py

@@ -0,0 +1,99 @@
+"""Fixture condivise: template e scene sintetiche con ground-truth nota.
+
+Tutti i test sono sintetici (nessuna dipendenza dalle immagini Test/,
+non versionate): generano scene con pose note e verificano recall e
+precisione del matcher. Runtime totale atteso: ~2-4 min su 2 core.
+"""
+from __future__ import annotations
+
+import math
+
+import cv2
+import numpy as np
+import pytest
+
+
+def make_template(tw: int = 160, th: int = 120) -> np.ndarray:
+    """Forma a L asimmetrica con foro circolare, contrasto netto.
+
+    Asimmetrica per evitare ambiguita' rotazionali nei confronti GT.
+    """
+    img = np.full((th, tw), 60, np.uint8)
+    cv2.rectangle(img, (20, 20), (60, th - 20), 200, -1)
+    cv2.rectangle(img, (20, th - 55), (tw - 25, th - 20), 200, -1)
+    cv2.circle(img, (tw - 45, 40), 16, 200, -1)
+    return cv2.GaussianBlur(img, (3, 3), 0)
+
+
+# Pose ground-truth: (cx, cy, angle_deg) - angoli volutamente lontani
+# dalla griglia di step 5/2 gradi per misurare il refine.
+GT_POSES: list[tuple[float, float, float]] = [
+    (150.0, 150.0, 0.0),
+    (450.0, 140.0, 7.3),
+    (740.0, 170.0, 33.7),
+    (160.0, 420.0, 91.2),
+    (460.0, 430.0, 158.4),
+    (750.0, 480.0, 246.9),
+    (300.0, 590.0, 312.6),
+]
+
+
+def make_scene(
+    template: np.ndarray,
+    poses: list[tuple[float, float, float]],
+    W: int = 900, H: int = 700,
+    noise: float = 4.0, seed: int = 7,
+) -> np.ndarray:
+    """Incolla il template warpato alle pose date su sfondo rumoroso.
+
+    Convenzione di rotazione identica al matcher (cv2.getRotationMatrix2D
+    attorno al centro template, poi traslazione del centro su (cx, cy)).
+    """
+    rng = np.random.default_rng(seed)
+    scene = np.full((H, W), 60, np.float32)
+    th, tw = template.shape
+    for (cx, cy, ang) in poses:
+        M = cv2.getRotationMatrix2D((tw / 2.0, th / 2.0), ang, 1.0)
+        M[0, 2] += cx - tw / 2.0
+        M[1, 2] += cy - th / 2.0
+        warped = cv2.warpAffine(template.astype(np.float32), M, (W, H),
+                                flags=cv2.INTER_LINEAR, borderValue=-1)
+        scene = np.where(warped >= 0, warped, scene)
+    scene += rng.normal(0, noise, scene.shape)
+    return np.clip(scene, 0, 255).astype(np.uint8)
+
+
+def ang_diff(a: float, b: float) -> float:
+    """Differenza angolare firmata in (-180, 180]."""
+    d = (a - b) % 360.0
+    return d - 360.0 if d > 180.0 else d
+
+
+def match_errors(matches, poses, radius: float = 20.0):
+    """Associa match a pose GT per distanza; ritorna (err_ang, err_pos, n_miss)."""
+    errs_a: list[float] = []
+    errs_p: list[float] = []
+    miss = 0
+    for (cx, cy, ang) in poses:
+        cands = [
+            (math.hypot(m.cx - cx, m.cy - cy), m)
+            for m in matches
+            if math.hypot(m.cx - cx, m.cy - cy) < radius
+        ]
+        if not cands:
+            miss += 1
+            continue
+        d, m = min(cands, key=lambda t: t[0])
+        errs_a.append(abs(ang_diff(m.angle_deg, ang)))
+        errs_p.append(d)
+    return errs_a, errs_p, miss
+
+
+@pytest.fixture(scope="session")
+def template() -> np.ndarray:
+    return make_template()
+
+
+@pytest.fixture(scope="session")
+def scene(template) -> np.ndarray:
+    return make_scene(template, GT_POSES)

tests/test_matcher_unit.py

@@ -0,0 +1,84 @@
+"""Unit test rapidi su componenti del matcher (no matching pesante)."""
+from __future__ import annotations
+
+import numpy as np
+import cv2
+import pytest
+
+from pm2d import LineShapeMatcher
+from tests.conftest import GT_POSES, make_scene, match_errors
+
+
+def test_angle_list_includes_range_end():
+    # Range parziale ±15: l'estremo +15 deve essere testato (era escluso).
+    m = LineShapeMatcher(angle_range_deg=(-15.0, 15.0), angle_step_deg=5.0)
+    angles = m._angle_list()
+    assert -15.0 in angles and 15.0 in angles
+    assert len(angles) == 7
+
+
+def test_angle_list_full_circle_no_duplicate():
+    # (0, 360): 360 coincide con 0 → escluso, niente variante duplicata.
+    m = LineShapeMatcher(angle_range_deg=(0.0, 360.0), angle_step_deg=5.0)
+    angles = m._angle_list()
+    assert len(angles) == 72
+    assert 360.0 not in angles
+
+
+def test_pyramid_clamp_small_template():
+    # Template 40px di lato minimo: al top /4 le feature collassano →
+    # i livelli vengono clampati (40/2=20 >= 12, 40/4=10 < 12 → 2 livelli).
+    m = LineShapeMatcher(pyramid_levels=4, angle_range_deg=(0.0, 10.0),
+                         angle_step_deg=5.0)
+    tpl = np.full((40, 200), 60, np.uint8)
+    cv2.rectangle(tpl, (30, 8), (170, 32), 200, -1)
+    m.train(tpl)
+    assert m.pyramid_levels == 2
+
+
+def test_save_load_roundtrip(tmp_path, template, scene):
+    m = LineShapeMatcher(angle_step_deg=10.0)
+    m.train(template)
+    path = str(tmp_path / "model.npz")
+    m.save_model(path)
+    m2 = LineShapeMatcher.load_model(path)
+    assert len(m2.variants) == len(m.variants)
+    matches = m2.find(scene, min_score=0.5, max_matches=10)
+    _, _, miss = match_errors(matches, GT_POSES)
+    assert miss == 0
+
+
+def test_scene_cache_no_collision(template):
+    # Due scene IDENTICHE nella banda superiore ma diverse sotto: la cache
+    # (che prima hashava solo i primi 64KB) non deve restituire i risultati
+    # della scena sbagliata.
+    poses_a = [GT_POSES[0], (450.0, 560.0, 33.7)]
+    poses_b = [GT_POSES[0], (700.0, 560.0, 91.2)]
+    scene_a = make_scene(template, poses_a)
+    scene_b = make_scene(template, poses_b)
+    # Stessa banda superiore (le pose extra sono in basso, y >= 430)
+    assert np.array_equal(scene_a[:80], scene_b[:80])
+    m = LineShapeMatcher(angle_step_deg=10.0)
+    m.train(template)
+    ma = m.find(scene_a, min_score=0.5, max_matches=5)
+    mb = m.find(scene_b, min_score=0.5, max_matches=5)
+    _, _, miss_a = match_errors(ma, poses_a)
+    _, _, miss_b = match_errors(mb, poses_b)
+    assert miss_a == 0 and miss_b == 0
+
+
+def test_train_mask_polygonal(template, scene):
+    # ROI poligonale: mask che copre solo la L verticale del template.
+    mask = np.zeros_like(template)
+    cv2.rectangle(mask, (10, 10), (70, template.shape[0] - 10), 255, -1)
+    m = LineShapeMatcher(angle_step_deg=10.0)
+    n = m.train(template, mask=mask)
+    assert n > 0
+    matches = m.find(scene, min_score=0.5, max_matches=10)
+    assert len(matches) >= 1
+
+
+def test_untrained_find_raises():
+    m = LineShapeMatcher()
+    with pytest.raises(RuntimeError):
+        m.find(np.zeros((100, 100), np.uint8))

tests/test_precision.py

@@ -0,0 +1,56 @@
+"""Test di non-regressione su precisione e recall (GT sintetica).
+
+Soglie derivate dalle misure di Fase 2 (errore mediano ~0.05 deg /
+~0.08 px) con margine 3-4x per assorbire rumore tra run/macchine.
+Una regressione del refine (es. score saturo, minMaxLoc sul plateau)
+riporterebbe gli errori a 2-4 deg / 4 px e fa fallire i test con
+margine enorme.
+"""
+from __future__ import annotations
+
+import numpy as np
+
+from pm2d import LineShapeMatcher
+from tests.conftest import GT_POSES, match_errors
+
+
+def _find(template, scene, step, **kw):
+    m = LineShapeMatcher(angle_step_deg=step, num_features=96)
+    m.train(template)
+    return m.find(scene, min_score=0.5, max_matches=10, **kw)
+
+
+def test_recall_and_precision_step5(template, scene):
+    matches = _find(template, scene, 5.0)
+    errs_a, errs_p, miss = match_errors(matches, GT_POSES)
+    assert miss == 0, f"{miss} pose GT non trovate"
+    assert float(np.median(errs_a)) < 0.2, f"err angolo mediano {np.median(errs_a):.3f} deg"
+    assert float(np.max(errs_a)) < 0.5, f"err angolo max {np.max(errs_a):.3f} deg"
+    assert float(np.median(errs_p)) < 0.3, f"err posizione mediano {np.median(errs_p):.3f} px"
+    assert float(np.max(errs_p)) < 1.0, f"err posizione max {np.max(errs_p):.3f} px"
+
+
+def test_recall_and_precision_step2(template, scene):
+    # Step fine: storicamente il caso peggiore (plateau con piu' varianti
+    # dentro la tolleranza spread → scelta variante arbitraria).
+    matches = _find(template, scene, 2.0)
+    errs_a, errs_p, miss = match_errors(matches, GT_POSES)
+    assert miss == 0, f"{miss} pose GT non trovate"
+    assert float(np.median(errs_a)) < 0.2
+    assert float(np.max(errs_a)) < 0.5
+    assert float(np.median(errs_p)) < 0.3
+
+
+def test_no_false_positives(template, scene):
+    # max_matches alto: non devono comparire match spuri oltre le 7 pose.
+    matches = _find(template, scene, 5.0)
+    assert len(matches) <= len(GT_POSES) + 1, (
+        f"{len(matches)} match per {len(GT_POSES)} oggetti reali"
+    )
+
+
+def test_full_scan_path_equivalent(template, scene):
+    # Il path full-scan (propagate off) deve trovare le stesse pose.
+    matches = _find(template, scene, 5.0, pyramid_propagate=False)
+    _, _, miss = match_errors(matches, GT_POSES)
+    assert miss == 0

uv.lock

@@ -62,6 +62,29 @@ wheels = [
     { url = "https://files.pythonhosted.org/packages/d1/d6/3965ed04c63042e047cb6a3e6ed1a63a35087b6a609aa3a15ed8ac56c221/colorama-0.4.6-py2.py3-none-any.whl", hash = "sha256:4f1d9991f5acc0ca119f9d443620b77f9d6b33703e51011c16baf57afb285fc6", size = 25335, upload-time = "2022-10-25T02:36:20.889Z" },
 ]
 
+[[package]]
+name = "ezdxf"
+version = "1.4.4"
+source = { registry = "https://pypi.org/simple" }
+dependencies = [
+    { name = "fonttools" },
+    { name = "numpy" },
+    { name = "pyparsing" },
+    { name = "typing-extensions" },
+]
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 version = "0.1.0"
 source = { virtual = "." }
 dependencies = [
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     { name = "fastapi" },
     { name = "numba" },
     { name = "numpy" },
@@ -458,10 +601,13 @@ dependencies = [
 [package.dev-dependencies]
 dev = [
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+    { name = "pytest" },
+    { name = "ruff" },
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@@ -472,7 +618,11 @@ requires-dist = [
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+    { name = "pytest", specifier = ">=8.0" },
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+]
 
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