A New Algorithm of Compound Blind Watermarking

To change the situation that many methods about watermarking were based on embedding one single watermark,we presented a new compound image watermarking method,which was embedding both robust watermark and fragile watermark to one image,so that we can not only convey the ownership,but also justify whether the source image is tampered.Therefore,a multipurpose watermarking system has been designed in this paper.In addition,both the watermarks need not the source image information during the process of extracting or detecting.That is to say,our algorithm is a blind one.Simulation results show that the algorithm we present is very effective,and can be widely used in practice.