digital watermarking technology which applies redundant indexes of images to carry hiding information
liu dong,zhou mingtian
(school of computer science & engineering, university of electronic science & technology of china, chengdu 610054, china)
abstract:this paper presented a digital watermarking technology which applies redundant indexes of an image to carry hiding information. firstly, the special designing method for redundant indexes mappingtable in an index image was introduced. then based on the mappingtable, the methods of embedding and detecting digital watermarking into the indexes of images were raised. at last, with this technology, the maximum capacity of embedding watermark into an index image was analyzed. this technology brought no impact on quality of the image and was appropriated for embedding watermarking into images with less color and for applications of fragile watermarking.......