An Effective Digital Image Watermarking Algorithm
Sdust Shandong · Microcomputer Information · 2007
With the development of the Internet,Watermarking technology has been widely used in digital image,video,audio,and other multimedia fields. In this paper,a new method of effective digital image watermark is put forward. First of all,chaos mapping technology is used to treat the watermark to protect the security of the watermark,then,the original image is divided by bytes of the watermark with the help of the SVD,and embed the watermark byte to the largest singular value. Last,the image embedded water-mark is finished by the anti-transform of SVD. The results of the experiment indicate that the method can assure the security of the watermark,and the destination image has good invisibility and robustness.