A New Method in Color Images Watermarking based on YPbPr Color Space in FWHT Domain

Watermarking systems have different features where the two opposite ones named transparency and robustness are the most important ones. In this paper, two new methods for the watermark embedding have been presented based on color images watermarking in FWHT domain and YPbPr color space. The first method is proposed to embed binary watermark in the host color image where the watermark is embedded in the Pb color component. The second method is proposed to embed color watermarks in the host color image. In this method, the Y, Pb and Pr components of watermark image are embedded respectively in Y, Pb and Pr components of the host image. This method has suitable transparency and robustness. The simulation results show that the PSNR and NCC values have increased about 10.74 dB and 0.05 compared to the methods used in [7-11] and [18].