用于防止图像非法传播的认证水印技术

Authentication Watermarking Techniques for Preventing Digital Image Transmitted Illegally

针对当前数字图像被购买者随意的散播、修改,而造成的版权问题,提出了一种空域水印认证算法,即使水印信息被篡改,也能够修复水印信息.该算法将购买者的信息以水印的形式嵌入到数字作品中,随着水印的恢复,可以找出参与了非法拷贝的买主的信息.

Considering the problems of copyright from bruiting randomly by the buyers,a spatial domain digital watermarking arithmetic,which can recover destroyed watermark,is introduced in this paper.When the watermarks are recovered,the information of the buyers that copied digital watermark illegally can be found out.