Opencv change color

How to change color of image in opencv

# if you want to change color while reading the image, set flag=0 for Grayscale
img = cv2.imread("example.png", flag=0)

# if you want to change color of a pre-loaded image (Grayscale)
# chnage the code parameter accordingly, here it turns into grayscale
img = cv2.cvtColor(img, code=cv2.COLOR_BGR2GRAY)

Source: grepper.com

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