A blind image watermarking scheme based on fractional fourier domain
Jin Yang · Jiguang zazhi · 2006
It presents a blind image watermarking scheme based on fractional Fourier domain by utilizing that the order of fractional Fourier transform is freewill.Firstly the carrier image is two dimensional discrete fractional Fourier transformed with order 'p'.Then with LSB algorithm,the original watermarking is embed in the lower 'frequency'coefficient matrix of fractional Fourier domain of order p.The final watermarking image is obtained by inversely transforming the joint spectra.This scheme can enhance the watermarking security,and mitigate the illogicality between the robustness and invisibility.Experiment results showed that this watermarking image has better performance of invisibility and anti-attack of noise.