Watermarking algorithm for color image based on SVD
Jin Yan Zheng · Jisuanji gongcheng yu sheji · 2008
Digital watermarking is a technique that can inlay identity information and secrecy information into images.Reliable watermarking provides a pledge for information safety.A color image watermarking algorithm is proposed based on SVD.Firstly, blue luminanceof RGB color space forcolorimage is divided into 8×8 blocks and decomposedin SVD.Finally, binaryimage of chaotic scrambling encryption embeds singular value decomposition.Experimental results show that the watermarking algorithm for color image is invisible and robust against various image processing.