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I'm trying to inpaint an image using cv2.xphoto.inpaint in Python 3, however it just produces a zero image. I installed opencv=3.4.2 via conda. The docs say the images need to be in Lab colorspace, however I get the same result with RGB.

My code: https://gist.github.com/Treiblesschorle/288800e8085804ab0a20756a183eff14

Used images:

I'm trying to inpaint an image using cv2.xphoto.inpaint in Python 3, however it just produces a zero image. I installed opencv=3.4.2 via conda. The docs say the images need to be in Lab colorspace, however I get the same result with RGB.

My code: https://gist.github.com/Treiblesschorle/288800e8085804ab0a20756a183eff14code:

import cv2
import numpy as np
from scipy.misc import imread
import matplotlib.pyplot as plt

cow = imread('C:/cow.png')
mask = imread('C:/mask.png')

img_lab = cv2.cvtColor(src=cow, code=cv2.COLOR_RGB2Lab)
inverse_mask = np.uint8(np.max(mask == 255, axis=-1))

dst = np.zeros_like(cow)
cv2.xphoto.inpaint(src=img_lab, mask=inverse_mask, dst=dst, algorithmType=cv2.xphoto.INPAINT_SHIFTMAP)
dst = cv2.cvtColor(src=dst, code=cv2.COLOR_Lab2RGB)

plt.imshow(dst)
plt.show()

Used images: