A novel approach to digital watermarking, exploiting colour spaces

The aim of this work is to produce a novel hybrid digital watermarking technique, based on the exploitation of both the RGB and the YCbCr colour spaces, using spatial domain techniques, to increase robustness to attacks. Results demonstrate that the proposed hybrid technique can withstand levels of geometric attacks and processing attacks up to a point where the commercial value of the images tested would be lost. Results also demonstrate technical and performance improvements over existing methods, in terms of security and algorithm efficiency, while taking inspiration from steganography, to avoid drawing attention to the fact that an image contains hidden information.