Update ocr_engine.py

ocr_engine.py

@@ -6,22 +6,28 @@ import re
 reader = easyocr.Reader(['en'], gpu=False)
 
 def enhance_image(img):
+    # Resize big images
     max_dim = 1000
     height, width = img.shape[:2]
     if max(height, width) > max_dim:
         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)
 
-    kernel = np.array([[0, -1, 0], [-1, 5, -1], [0, -1, 0]])
+    # Sharpen
+    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))
-    enhanced = clahe.apply(sharp)
+    contrast = clahe.apply(sharp)
 
-    return enhanced
+    return contrast
 
 def extract_weight_from_image(pil_img):
     try:
@@ -35,34 +41,18 @@ def extract_weight_from_image(pil_img):
         weight_candidates = []
 
         for _, text, conf in results:
-            cleaned = text.lower().strip()
-
-            # Fix common OCR errors
-            cleaned = cleaned.replace(",", ".")
-            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 = text.lower()
             cleaned = cleaned.replace("kg", "").replace("kgs", "")
+            cleaned = cleaned.replace("o", "0").replace("s", "5").replace("g", "9")
             cleaned = re.sub(r"[^\d\.]", "", cleaned)
 
-            # Match weights like: 58.8, 75.02, 97.2, 102.34, etc.
-            if re.fullmatch(r"\d{2,4}(\.\d{1,3})?", cleaned):
+            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)
 
-        # Pick the highest confidence result
         best_weight, best_conf = sorted(weight_candidates, key=lambda x: -x[1])[0]
-
-        # Remove unnecessary leading zeros
-        if "." in best_weight:
-            parts = best_weight.split(".")
-            parts[0] = parts[0].lstrip("0") or "0"
-            best_weight = ".".join(parts)
-        else:
-            best_weight = best_weight.lstrip("0") or "0"
-
         return best_weight, round(best_conf * 100, 2), "\n".join(ocr_texts)
 
     except Exception as e: