数字水印的嵌入和检测，dct， 作者Mao Li Purpose:an algorithm to achieve the embeding watermarking to a image by dct bloking and hvs,then detect the watermarking by comparability. -digital watermark embedding and detection, Copy, the writer Mao Li Purpose

水印嵌入(小波，dct,lsb)实例都有-watermarking emding

Matlab source code for DCT-based watermarking for grayscale images. DCT-based watermark recovering without resorting to the uncorrupted original image. Digital watermarking has been proposed as a viable solution to the need of copyright protection an