# Inpaint node¶

This documentation is for version 1.0 of Inpaint (eu.cimg.Inpaint).

## Description¶

Inpaint (a.k.a. content-aware fill) the areas indicated by the Mask input using patch-based inpainting.

Be aware that this filter may produce different results on each frame of a video, even if there is little change in the video content. To inpaint areas with lots of details, it may be better to inpaint on a single frame and paste the inpainted area on other frames (if a transform is also required to match the other frames, it may be computed by tracking).

A tutorial on using this filter can be found at http://blog.patdavid.net/2014/02/getting-around-in-gimp-gmic-inpainting.html

The algorithm is described in the two following publications:

“A Smarter Examplar-based Inpainting Algorithm using Local and Global Heuristics for more Geometric Coherence.” (M. Daisy, P. Buyssens, D. Tschumperlé, O. Lezoray). IEEE International Conference on Image Processing (ICIP’14), Paris/France, Oct. 2014

and

“A Fast Spatial Patch Blending Algorithm for Artefact Reduction in Pattern-based Image Inpainting.” (M. Daisy, D. Tschumperlé, O. Lezoray). SIGGRAPH Asia 2013 Technical Briefs, Hong-Kong, November 2013.

Uses the ‘inpaint’ plugin from the CImg library.

CImg is a free, open-source library distributed under the CeCILL-C (close to the GNU LGPL) or CeCILL (compatible with the GNU GPL) licenses. It can be used in commercial applications (see http://cimg.eu). The ‘inpaint’ CImg plugin is distributed under the CeCILL (compatible with the GNU GPL) license.

## Inputs¶

Input Description Optional
Source   No

## Controls¶

Parameter / script name Type Default Function
Patch Size / patchSize Integer 7
Lookup Size / lookupSize Double 16
Lookup Factor / lookupFactor Double 0.1
Blend Size / blendSize Double 1.2
Blend Threshold / blendThreshold Double 0
Blend Decay / blendDecay Double 0.05
Blend Scales / blendScales Integer 10
Allow Outer Blending / isBlendOuter Boolean On
(Un)premult / premult Boolean Off Divide the image by the alpha channel before processing, and re-multiply it afterwards. Use if the input images are premultiplied.
Invert Mask / maskInvert Boolean Off When checked, the effect is fully applied where the mask is 0.
Mix / mix Double 1 Mix factor between the original and the transformed image.