Higher-order total variation inpainting

M-files for inpainting with nonlinear and higher-order PDEs

M-files for inpainting with:

M1: heat_equation.m: the heat equation (harmonic inpainting)
M2: bvl2_inpainting_convs.m: standard total variation inpainting
M3: bvnegh_inpainting_convs.m: a fourth-order total variation PDE for inpainting.

Mat-files include:

MAT1: strip1ades.mat (default image): black strip on white background with a small hole in the middle. All three inpainting methods M1-M3 give similar results. The strip inpainted with M2 and M3 has sharper edges than the one inpainted with M1.
MAT2: strip1ades1.mat: the same black strip as in MAT1 but with a larger hole in the middle. For this example the higher-order inpainting method M3 clearly outperforms the other two inpainting methods.
MAT3: elephantcropdes1.mat: image of elephants with speckled inpainting domain.