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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
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Matlab file for digital watermark embedder. A DCT based embedder for embedding the digital Images.
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A gr8 Adaptive DCT based watermarking system is implemented with a nice GUI for embedding, extraction and attacks
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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
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主要介绍基于dct的数字音频水印，以及水印的嵌入和水印的提取-Introduced digital audio watermarking based on dct, and the watermark embedding and watermark extraction
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首先将YUV格式的视频转换为MAtlab适用的格式，通过主要采用DCT变换的方式，实现视频水印的嵌入。-First, the YUV format video conversion MAtlab for the format, mainly DCT transform by way of video watermark embedding.
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基于DCT和DWT的水印的嵌入与提取，以及鲁棒性的检测，攻击检测-Based on the DCT and DWT watermarking embedding and extraction, as well as the robustness of detection, attack detection
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该课题为基于MATLAB的数字水印系统。包括离散余弦DCT和小波变换DWT两种算法的对比，有一个GUI界面，包括嵌入，加噪，旋转，剪切，压缩等多种攻击，提取候，具有评价指标PSNR,NC等来评价算法的鲁棒性(This project is a digital watermarking system based on MATLAB. It includes the comparison of DCT and DWT. It has a GUI interface, including embedd
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