Wiktionary
inpainting
n. A technique in which portions of damaged images are reconstructed by interpolation of surrounding areas
Wikipedia
Inpainting
Inpainting is the process of reconstructing lost or deteriorated parts of images and videos. In the museum world, in the case of a valuable painting, this task would be carried out by a skilled art conservator or art restorer. In the digital world, inpainting (also known as image interpolation or video interpolation) refers to the application of sophisticated algorithms to replace lost or corrupted parts of the image data (mainly small regions or to remove small defects).
Usage examples of "inpainting".
Only when he cocked his head to create the effect of raked lighting could he tell the difference between his inpainting and the original.