Wavelet-Based Color Image Watermarking Algorithm

A color image watermarking algorithm based on wavelet transform was proposed.The proposed algorithm embeds a binary image watermark into the perceptually significant coefficients of the RGB components of a color image.During the embedding process,to ensure the invisibility and the robustness of the watermark,the intensity of the watermark was adjusted according to the relative intensity of the RGB components.The experiments prove that the proposed algorithm is transparent and robust.