Développement d’algorithmes de tatouage d’images basés sur la SVD et les transformées discrètes

Abstract

In this memory, we first enumerate the state of the art of the watermarking of the digital images. Then, we presented some algorithms based on the SVD (singular value decomposition). These algorithms were implemented on MATLAB and were tested against possible attacks met in the image processing field. At last, we developed algorithms based on the SVD and another transform (the DFT-SVD, the DWT-SVD and the DCT-SVD).