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数字水印
- 对原始信号做DCT的算法：Cox 和Piva 等人提出的DCT技术的经典之作。Cox利用随机数发生器产生标准正态序列作为水印信息对图像进行整体DCT变换后，选取除去DC系数之外部分较低频率系数叠加水印信息 Piva则修改整幅图像的中频部分。对原始信号分块后，再作DCT的算法：Hsu和Wu 把图像进行8*8分块，将一个二进制序列作为水印放入DCT的中频区；有些学者则计算整个图像的DCT，把一个实数序列嵌入DCT的中频系数上。选择中频区的好处是一方面尽量减少嵌入信息对图像主观视觉的影响；同时，尽量避
watermark的DCT代码1
- 一个基于DCT域的数字水印代码，里面有详细的注释说明。-This is a digital watermarking sourcecode based on DCT.Attached with detailed comments and explanation.
watermark的DCT代码2
- 有一个机遇DCT域的数字水印算法，里面有详细的注释说明，可以拿来研究-This is a DCT watermarking algorithm attached with detailed comments and explanation, which can be used for research purpose.
DCT
- 采用离散余弦变换DCT，通过MATLAB实现数字水印（包括水印的嵌入和盲提取）。- Uses discrete cosine transformation DCT, realizes the digital watermark through MATLAB (including watermark inserting and blind extraction).
work
- 基于DCT的数字水印的生成和提取，分别在两个DCT.m和IDCT.m两个文件中-DCT-based digital watermark generation and extraction, respectively, in two DCT.m and two documents IDCT.m
watermarking_dct_matlab
- 一种DCT变换的数字音频水印技术，可以进行水印的嵌入和提取-DCT transform of a digital audio watermarking technique that can be embedded and extracted watermark
matlab
- ~~多种变换的数字水印源码DCT DWT-~ ~ A wide range of digital watermarking Transform DCT DWT source
DCT4
- 运用DCT进行数字水印的嵌入和提取 运用DCT进行数字水印的嵌入和提取-The use of DCT digital watermark embedding and extraction of the use of DCT digital watermark embedding and extraction
image_watermark_matlab
- 两种DCT变换域的数字水印嵌入与提取的算法,并对用这两种算法嵌入的水印图像分别进行了几种常见的图像处理的健壮性检验- the technology of DCT image watermarking, focused on achieving two DCT transform domain of embedded and extraction algorithms. Finally, we get several common image processing robust inspectio
matlab
- 基于MATLAB的数字水印技术研究 关键词：数字水印 Matlab Visual C++6.0 DWT DCT -MATLAB-based digital watermarking technology research Keywords: digital watermarking Matlab Visual C++6.0 DWT DCT
wartODE
- 本代码是是基于离散余弦变化的数字水印算法，通过Matlab来实现。对学习水印有很大的帮助！-DCT
dct2
- 数字水印DCT算法设计，可以进行优化，希望大家一起将程序优化-DCT digital watermarking algorithm designe，it can be optimized and I hope that everyone can work together to optimized it.
DCT
- 本压缩文件为一种基于DCT的数字图像水印实现。-watermarking based on the DCT
pic393
- 频域法加入数字水印的原理是首先将原始信号（语音一维信号、图像二维信号）变换到频域，常用的变换一般有DWT、DCT、DFT、WP和分形。然后，对加入了水印信息的信号进行频域反变换（IDWT、IDCT、DFT、WP），得到含有水印信息的信号。-Frequency-domain digital watermarking method by adding the principle is that first of all, the original signal (voice signal of on
image.java.tar
- 实现对图片数字水印的添加和缩放，并且包含数字和图片水印的添加。而且增加了缩放功能。-Implementation of digital watermarking to add the picture and zoom, and includes figures and images watermark to add. And increased the zoom feature.
dct2_embed
- 数字水印嵌入算法，利用离散余弦变换的（dct）算法，对以往的算法有所改进-Digital watermark embedding algorithm, using discrete cosine transform (dct) algorithm, an improvement on previous algorithms
dct2_recover
- 数字水印提取算法，利用离散余弦变换的（dct）算法，对以往的算法有所改进-Digital watermark extraction algorithm using discrete cosine transform (dct) algorithm, an improvement on previous algorithms
1
- 基于DCT的数字水印matlab源码，对于初学者很有用-DCT-based digital watermarking matlab source code, useful for beginners
DCT
- 一个实用的DCT数字图像水印程序，可以直接运行，包括很多攻击类型以及图片-A practical digital image watermark DCT procedure can run, including many types of attacks, as well as pictures
SVD-BASED
- 一种基于奇异值分解的数字水印技术，这是一篇很经典的文章，再此文章之后，基于svd的水印技术大量出现-a digital watermarking technologybased on Singular value decomposition , which is a classic article, and then, after this article, the watermarking technique based on large numbers of svd