Colour Watermarking: Study of Different Representation Spaces
Alice Parisis, Philippe C. Carré, Christine Fernández-Maloigne · Conference on Colour in Graphics Imaging and Vision · 2002
Watermarking is a subject of research that increases during the last ten years, particularly because of evolves of Internet. Now, a lot of algorithms and methods have been developed for greyscale images. But the particularities of color spaces have to be studied. On the other hand, the wavelet transform allows different possibilities of integrate a mark because of the uses of different parameters: the scale of decomposition, size, shape and localisation of the mark, and the used color space, etc. The aim of this paper is to study different watermarking combinations for different color spaces, to determine the capacities, possibilities and limits of watermarking in each wavelet color representation.