Research of digital image watermarking based on HVS
Tao Feng · 2009
A new watermarking algorithm is proposed in the paper and watermarks were embedded and extracted in the low-frequency subband after multiresolution decomposition. Instead of using a random sequence, a visually meaningful gray scale logo is used as watermark which is scrambled by Arnold transform. The method uses the characteristic of human visual system (HVS) to enhance the robustness of the watermark and avoids the perceptibility of human eyes. Experimental results show that the embedded digital watermarking is invisible and robust enough against common image processing such as JPEG compression, filter, adding the stochastic noises and rotation.