Update ocr_engine.py

ocr_engine.py

@@ -13,17 +13,12 @@ def enhance_image(img):
         scale = max_dim / max(height, width)
         img = cv2.resize(img, None, fx=scale, fy=scale, interpolation=cv2.INTER_AREA)
 
-    # Grayscale
     gray = cv2.cvtColor(img, cv2.COLOR_RGB2GRAY)
-
-    # Denoise
     gray = cv2.fastNlMeansDenoising(gray, h=15)
 
-    # Sharpen
-    kernel = np.array([[0, -1, 0], [-1, 5,-1], [0, -1, 0]])
+    kernel = np.array([[0, -1, 0], [-1, 5, -1], [0, -1, 0]])
     sharp = cv2.filter2D(gray, -1, kernel)
 
-    # Contrast
     clahe = cv2.createCLAHE(clipLimit=2.0, tileGridSize=(8, 8))
     contrast = clahe.apply(sharp)
 
@@ -41,18 +36,29 @@ def extract_weight_from_image(pil_img):
         weight_candidates = []
 
         for _, text, conf in results:
-            cleaned = text.lower()
+            cleaned = text.lower().strip()
+
+            # Fix common misreads
+            cleaned = cleaned.replace(",", ".")  # comma → dot
+            cleaned = cleaned.replace("o", "0").replace("O", "0")
+            cleaned = cleaned.replace("s", "5").replace("S", "5")
+            cleaned = cleaned.replace("g", "9").replace("G", "6")
             cleaned = cleaned.replace("kg", "").replace("kgs", "")
-            cleaned = cleaned.replace("o", "0").replace("s", "5").replace("g", "9")
-            cleaned = re.sub(r"[^\d\.]", "", cleaned)
+            cleaned = re.sub(r"[^\d\.]", "", cleaned)  # Keep only digits + dot
 
+            # Match: 2 to 4 digits, optional .digit
             if re.fullmatch(r"\d{2,4}(\.\d{1,2})?", cleaned):
                 weight_candidates.append((cleaned, conf))
 
         if not weight_candidates:
             return "Not detected", 0.0, "\n".join(ocr_texts)
 
+        # Get highest confidence result
         best_weight, best_conf = sorted(weight_candidates, key=lambda x: -x[1])[0]
+
+        # Remove leading zeros
+        best_weight = best_weight.lstrip('0') or '0'
+
         return best_weight, round(best_conf * 100, 2), "\n".join(ocr_texts)
 
     except Exception as e: