Update README.md

README.md

@@ -30,7 +30,7 @@ import cv2
 def crop_roi(img):
     img = img[5:-5, 5:-5]
 
-    output = cv2.connectedComponentsWithStats((img > 10).astype(np.uint8)[:, :], 8, cv2.CV_32S) #
+    output = cv2.connectedComponentsWithStats((img > 10).astype("uint8")[:, :], 8, cv2.CV_32S)
     stats = output[2]
 
     idx = stats[1:, 4].argmax() + 1