Fix variable issue

app.py

@@ -97,6 +97,9 @@ def crop_signature(original_image_path, mask, padding=32):
     
     # Find contours from the binary mask
     contours, _ = cv2.findContours(binary_mask, cv2.RETR_EXTERNAL, cv2.CHAIN_APPROX_SIMPLE)
+
+    # Open the original image
+    original_image = Image.open(original_image_path).convert("RGB")
     
     # If contours are found, proceed to crop
     if contours:
@@ -128,7 +131,6 @@ def crop_signature(original_image_path, mask, padding=32):
         return mask_image
 
     # If no contours are found, return the original image
-    original_image = Image.open(original_image_path).convert("RGB")
     return original_image
 
 '''