Image inpainting is an important research topic in the area of image restoration

its objective is to restore the lost information according to around image information

which can be used to restore old photo. Because edge information of image is very important

it is prior to take edge information restoring into account while designing image inpainting algorithm. Based on total variational model

a digital image inpainting algorithm is presented in this paper. Total variational model can simulate low level human vision

during the process of image inpainting

which can restore edge features in image. Numerical experiment results show that this model can restore the information in inpainting area fairly well

but it will be disturbed by the size of inpainting region

so

an information propagation method is used first to shrink the size of inpainting region.