import numpy as np
import cv2
from matplotlib import pyplot as plt
if __name__ == '__main__':
img = cv2.imread('img.jpg')
dst = cv2.fastNlMeansDenoisingColored(img, None, 10, 10, 7, 21)
plt.subplot(121),plt.imshow(img)
plt.subplot(122),plt.imshow(dst)
plt.show()
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