Update app.py

app.py

@@ -54,7 +54,7 @@ if uploaded_image:
         intensity_map = cv2.cvtColor(colorized_img, cv2.COLOR_BGR2GRAY)
 
         # Threshold the intensity map to create a binary mask
-        _, binary_map = cv2.threshold(intensity_map, 0, 255, cv2.THRESH_BINARY)
+        _, binary_map = cv2.threshold(intensity_map, 255, 0, cv2.THRESH_BINARY)
 
         # Find contours in the binary map
         contours, _ = cv2.findContours(binary_map, cv2.RETR_EXTERNAL, cv2.CHAIN_APPROX_SIMPLE)