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matlab_watermark
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, quantization DCT coefficients and then use the parity properties of 8-bit grayscale watermark embedding map, and through the PN sequence of encryption to ensure the security of the watermark. Algorithm, the gray image into binary data stream, scrambling after the spread spectrum modulation, hidden in the host DCT coefficient quantization values, the extraction does not require the host signal, the blind watermark extraction.)
- 2010-12-24 11:11:10下载
- 积分:1
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crt(matlab)
中国剩余定理仿真代码(matlab),可以用在图像以及信道编码(Chinese remainder theorem simulation code (matlab))
- 2021-04-14 19:08:55下载
- 积分:1
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shafts
this is a matlab code with a gui that designs a shaft depending on the type of material needed the loads acting on it and the factor of safety
- 2011-12-27 00:13:44下载
- 积分:1
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lvboqihanshu
讲述了各种matlab在滤波器设计时可应用的函数,可供学习MATLAB的人使用。(About a variety of matlab filter design can be applied in a function, for people learning to use MATLAB.)
- 2010-12-25 18:59:42下载
- 积分:1
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rsyujian
说明: 粗糙集的属性约简 离散化,规则提取的方法有说明(rough set reduce)
- 2011-03-23 21:55:38下载
- 积分:1
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bingreedy
说明: 此源程序为解决一维集装箱装载问题,但是为二维和三维算法提供了很好的思路。(This source code to solve one-dimensional container loading problem, but for the two-dimensional and three-dimensional algorithm provides a very good idea.)
- 2010-04-26 22:48:09下载
- 积分:1
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libsvm-3.18
Matlab 下支持向量机经典实现过程,非常适合初学者使用,台湾林智仁代表作(Matlab SVM classic application, very straightforward, simple to understand, it s worth downloading)
- 2014-08-29 16:04:54下载
- 积分:1
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Soulution
binary hypothesis test solution
- 2010-06-08 01:57:49下载
- 积分:1
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waveefef
Allows seismic data retrieval from varied sources and simplified creation of sophisticated programs
- 2010-11-27 02:50:46下载
- 积分:1
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CHAPTER1
数字PID的matlab仿真程序,针对刘金琨的先进PID控制的matlab仿真,里面的部分程序进行了修改(Digital PID of matlab simulation program for Liu Jinkun matlab advanced PID control simulation, which part of the program were modified)
- 2011-04-22 21:10:54下载
- 积分:1