Virtual Restoration of Artwork

These are the results accompanying the paper "Virtual Restoration of the Ghent Altarpiece Using Crack Detection and Inpainting" submitted to the conference Advanced Concepts for Intelligent Vision Systems (ACIVS) 2011.

The crack maps used as input for inpainting are obtained as explained in Section 2 of the paper. Inpainting methods used, apart from the proposed one, are:
[1] Perona, P., Malik, J.: Scale-space and edge detection using anisotropic diffusion. IEEE Trans. on Pattern Anal. and Machine Intel., vol. 12, no. 7, 629-639 (1990)
[2] Criminisi, A., Perez, P., Toyama, K.: Region filling and object removal by exemplar-based image inpainting. IEEE Trans. Image Proc., vol. 13, no. 9, 1200-1212 (2004)
[3] Komodakis, N., Tziritas, G.: Image completion using efficient belief propagation via priority scheduling and dynamic pruning. IEEE Trans. Image Proc., vol. 16, no. 11, 2649-2661 (2007)

All the images are downscaled by a factor of 2, except from the last example, which is downscaled by the factor of 4. Click on the thumbnail for an enlarged image.

Small part of the jewel from the God the Father panel

Comparison of different inpainting methods on the small part of the image of a jewel:

Original image

Crack map

Result of [1]

Result of [2]

Result of [3]

Parts of Adam's face from the Adam panel

Influence of white borders around the cracks on the inpainting result. First row: results are obtained with the crack map without white borders and bright cracks. Second row: results are obtained with the crack map with white borders and bright cracks.

Adam's eye

Overlapped image	Result of [1]	Result of [2]
Overlapped image	Result of [1]	Result of [2]

Adam's nose and mouth

Overlapped image	Result of [1]	Result of [2]
Overlapped image	Result of [1]	Result of [2]

Proposed method on the example of the book from the Annunciation to Mary panel

Results of the proposed constrained candidate selection from Section 3.2 as an improvement for patch-based inpainting:

Original image

Method from [2]

Proposed method: fixed patch size

Proposed method: adaptive patch size

Results of the proposed constrained candidate selection with adaptive patch size on the whole book:

Original image

Crack map

Inpainting result