MOSAIC+: tools to assist virtual restoration

In many cases, virtual restoration is the only way to have an idea of the original appearance of an artwork. In particular, in the archeological field, it is useful to both assist and guide the operator in physical reconstruction, and to provide to the final visitor a complete vision of the artwork even though the original is damaged or lacks some parts. In this work, we propose a set of tools useful in two different restoration steps. The first one helps the expert to carry out reconstruction of fragmented artifacts in an easier and more effective way. The second provides a view of the artifact after virtually eliminating a craquelure. Keywords-virtual restoration; mosaic fragmentation; painting craquelure; color indexing; shape indexing