I used this filter:
image=cv2.imread(“q.jpg”,0)
image=cv2.cvtColor(image, cv2.IMREAD_COLOR)
img11 = cv2.resize(image, None, fx=2, fy=2, interpolation=cv2.INTER_CUBIC)
dst = cv2.fastNlMeansDenoisingColored(img11, None, 10, 10, 7, 15)
and this pic works.
