Digital watermarking scheme for color image based on image fusion

This paper provides a novel digital watermarking scheme for color image, watermarking image was embedded into the corresponding wavelet coefficients of the original image´s R, G, B subimages via discrete wavelet transform. The availability of the extracted watermark is evaluated by comparing the normalized correlation coefficients of the extracted watermark with the original one. Experiment results show high robustness of our approach to the common image processing technique such as JPEG compression and additive noise etc.