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DCT交换中频系数嵌入水印
- DCT交换中频系数嵌入水印
一个基于DCT变换域的数字水印系统实例
- 一个基于DCT变换域的数字水印系统实例-based on a DCT domain of digital watermarking system examples
dct2_embed
- dct水印嵌入算法-Extra watermark embedding algorithm
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
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.
watermark综述+代码
- 数字水印算法实现(matlab程序包),包含有DCT水印嵌入算法,DWT水印嵌入算法,以及水印攻击和性能测试程序。参考价值极大-digital watermarking algorithm (Matlab package), including a watermark embedded DCT algorithm, DWT algorithm embedded watermark, watermark and attack and pe
基于MATLAB的DCT域数字图像水印技术
- 基于MATLAB的DCT域数字图像水印技术.PDF 利用matlab实现-MATLAB-based DCT digital image watermarking technology. PDF achieved using Matlab
dct+ss
- dct变换+扩频的数字水印算法 水印为随即序列-Extra transform Spread Spectrum Watermarking digital watermarking algorithm for the forthcoming series
MATLAB(DCT+DWT)
- 图像数字水印的方案毕业论文,基于dct和dwt的算法,有详细程序。-digital watermark image of the program thesis, based on Extra dwt and the algorithm, a detailed procedure.
1_embed
- DCT水印设I 为载体数据,W 为水印信号, K 为密钥,那 么嵌入水印后的载体Iw 可描述为[124 ] : Iw = F( I ,W , K) . (1) 式中, F 表示水印的嵌入策略。-I as a carrier of data, W for the watermark signal, K key, Then the watermark embedded vector can be described as Iw
dct-watermark-embed-detection
- 基于DCT域的数字图像水印的处理,经测试可以达到对水印检测的功能-DCT-based digital watermark image processing, testing can be achieved by the right watermark detection function
DCT
- 一个基于dct变换的数字水印算法的源程序,可供进行数字水印学习和研究的学生及科研工作者学习参考-DCT-based digital watermarking algorithm transform the source code, available for study and research of digital watermarking students and researchers to study the reference
DCTDigitalwatermarkingsource
- DCT水印源码 整理自lufei的水印代码 不可见数字水印-DCT watermark since finishing lufei source code is not visible watermark digital watermarking
DCT-based_Image_Digital_Watermarking
- 基于DCT域的图像数字水印技术: 摘要:数字水印技术作为数字媒体版权保护的有效办法,近年来在国内外引起了人们极大的兴趣。作者采用了DCT离散余弦变换的算法,对图像这种多媒体数字作品进行了数字水印的嵌入和检测研究。并且使用了高效实用的编程工具MATLAB来介绍了一种DCT域的图像数字水印嵌入和提取的实例,并且在最后对嵌入水印的图像进行了攻击实验,验证了该算法的鲁棒性和不可见性。-Based on the DCT domain imag
dct
- 一种置换DCT域中频系数的盲水印算法,希望对大家有好处,谢谢^.^-Substitution of a DCT frequency coefficient domain blind watermarking algorithm, in the hope that everyone will benefit, thank you ^. ^
sss_0
- 数字水印算法实现包含有DCT水印嵌入算法,DWT水印嵌入算法,以及水印攻击和性能测试-Digital watermarking algorithm contains DCT watermark embedding algorithm, DWT watermark embedding algorithm, as well as the watermark attacks and performance testing
MATLAB DCT水印
- 在matlab平台下对DCT水印算法进行仿真实现。(In Matlab platform, the DCT watermarking algorithm is simulated.)
matlab实现DCt
- 用MATLAB实现DCT水印算法。信号经过DCT后,从空间域变换到频域。是一种正交变换的方法。是图像处理中应用即为广泛的傅氏变换中一种特殊的情况(被展开函数是实偶函数,再离散化,即为离散余弦变换)。 同傅氏变换一样,有正反两种变换。(DCT watermarking algorithm is implemented with MATLAB.)
dct水印
- DCT数字图像水印算法MATLAB仿真代码(DCT digital image watermarking algorithm MATLAB simulation code)
MATLAB DCT水印源程序代码
- MATLAB DCT水印源程序代码 MATLAB DCT水印源程序代码(MATLAB DCT watermark source code MATLAB DCT watermark source code)