# Inpainting¶

Inpainting 1 is the process of reconstructing lost or deteriorated parts of images and videos.

The reconstruction is supposed to be performed in fully automatic way by exploiting the information presented in non-damaged regions.

In this example, we show how the masked pixels get inpainted by inpainting algorithm based on ‘biharmonic equation’-assumption 2 3 4.

1

Wikipedia. Inpainting https://en.wikipedia.org/wiki/Inpainting

2

Wikipedia. Biharmonic equation https://en.wikipedia.org/wiki/Biharmonic_equation

3

N.S.Hoang, S.B.Damelin, “On surface completion and image inpainting by biharmonic functions: numerical aspects”, arXiv:1707.06567

4

C. K. Chui and H. N. Mhaskar, MRA Contextual-Recovery Extension of Smooth Functions on Manifolds, Appl. and Comp. Harmonic Anal., 28 (2010), 104-113, DOI:10.1016/j.acha.2009.04.004

import numpy as np
import matplotlib.pyplot as plt

from skimage import data
from skimage.restoration import inpaint

image_orig = data.astronaut()[0:200, 0:200]

# Create mask with three defect regions: left, middle, right respectively

# Defect image over the same region in each color channel
image_defect = image_orig.copy()
for layer in range(image_defect.shape[-1]):

multichannel=True)

fig, axes = plt.subplots(ncols=2, nrows=2)
ax = axes.ravel()

ax[0].set_title('Original image')
ax[0].imshow(image_orig)

ax[2].set_title('Defected image')
ax[2].imshow(image_defect)

ax[3].set_title('Inpainted image')
ax[3].imshow(image_result)

for a in ax:
a.axis('off')

fig.tight_layout()
plt.show()


Total running time of the script: ( 0 minutes 3.808 seconds)

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