OpenCV error - cv2.cvtcolor

Question

I am a newbie to openCV and I am stuck at this error with no resolution. I am trying to convert an image from BGR to grayscale format using this code-

img = cv2.         


        

Answer 1

It may be easier to initialize new numpy array with initial image as source and dtype=np.uint8:

import numpy as np    
img = cv2.imread('path//to//image//file')    
img = np.array(img, dtype=np.uint8)
gray = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)