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

脆弱水印的编程实现是一种基于空间域的脆弱数字水印如何嵌入 脆弱水印的编程实现-Programming fragile watermarking is based on spatial domain fragile watermarking to embed the fragile watermark Programming

本文算法是将24 位真彩图的亮度分量分块 DCT ,然后利用DCT 量化系数的奇偶特性嵌入8 位灰度水印图,并通过PN 序列加密来保证水印的 安全性。算法中,将灰度图像转换为二进制数据 流,置乱后扩频调制,隐藏在宿主DCT 系数量化值 中,提取时不需要宿主信号,实现水印信号的盲提 取。-This algorithm is 24-bit true color pictures of the luminance component of block DCT, quantiza

文档内容是基于小波域的脆弱水印嵌入和提取的算法代码。原图像为灰度图像，水印为二值水印图像。-The document content is based on wavelet domain fragile watermarking embedding and extraction algorithm code. The original image to grayscale watermark for the binary watermark image.

本代码在MATLAB中利用DWT算法实现了灰度图像水印的嵌入和提取-The code in MATLAB DWT algorithm to achieve a grayscale image watermark embedding and extraction