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Information-hiding
基于 DCT(离散余弦变换 )域的信息隐藏算法是目前应用最广的变换域算法 ,此类算法的最大不足是嵌信息量小。通过分析 DCT域隐藏算法隐藏容量少的原因 ,提出了一种大容量的 DCT域信息隐藏算法。算法首先对载体图像进行频谱均匀化处理 ,然后对图像进行全局 DCT变换 ,并将隐藏信息嵌入到载体图像的低频 DCT系数上 ,信息嵌入采用分段量化的方法实现 ,提取隐藏信息时不需要原始载体图像。实验结果表明 ,该算法的嵌入容量大 ,不可感知性好。(Based on DCT (discrete cosine transform) domain information hiding algorithm is the most widely used transform domain algorithms, the largest of these algorithms is the lack of a small amount of information embedded. Hiding Algorithm for DCT domain by analyzing the hidden reasons for the low capacity, a large capacity of information hiding algorithm for DCT domain. Firstly, the spectrum of the carrier image homogenization, and then the image is a global DCT transformation, and hidden information embedded into the image of the low-frequency DCT coefficients, the information embedded in the methods used to achieve sub-quantization, extract hidden information without the original Vector image. Experimental results show that the algorithm embedding capacity, can not be perceived good.)
- 2021-04-06 09:29:03下载
- 积分：1
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comparacionAWGRayleighsincod
Comparacion del BER de un canal AWGN y Rayleigh en matlab. 100 bien
- 2013-07-11 05:03:41下载
- 积分：1
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compex
基于 matlab 平台下的 约束非线性方程的解法的复合形法源程序（）(matlab program compex)
- 2011-09-29 21:51:56下载
- 积分：1
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Mastering-Algorithms-with-C-Loudon.pdf
The E-book is good to master in C.
- 2014-10-16 12:43:16下载
- 积分：1
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channel_coding
信道编码合集，包括turbo码，LDPC码和卷积码，且包含了所有的典型译码算法。(Channel coding sets, including turbo codes, LDPC codes and convolutional codes, and contain all typical coding algorithms.)
- 2020-06-21 14:40:01下载
- 积分：1
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bandel
Bundel model in Photogrammetry
- 2009-09-21 19:22:44下载
- 积分：1
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codec_snr_byYikwang
A simple function that takes an image and a mask as the input, perform compression and decompression on the image (color image compression if input image is color), and display the original and reconstructed images side by side. The program should also be able to compute the SNR of the reconstructed image.
- 2010-11-02 10:10:16下载
- 积分：1
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GMSK-Modem
GMSK信号调制和解调的仿真代码，包含一比特差分、2比特差分、鉴频等常用GMSK解调方案。(Modem matlab file for GMSK modulation and demodulation. The demodulation methods including one-bit differential and two-bit differentian decoding and frequency discrimination.)
- 2015-03-04 16:24:18下载
- 积分：1
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ngx-markdown-module
Nginx Markdown module
一个nginx模块，可以将网页中的markdown语法自动转义为html,无需引入其他支持库，执行效率高。
使用--add-module编译Tengine可用dso_install动态加载。
设置实例(http块)
location ~ /*.md {
mdfilter on
mdfilter_utf8 on
}
// Use Handler module
location ~ /*.mkd {
mdhandler
mdhandler_output html
}(Nginx Markdown module a nginx module can be a Web page markdown syntax is automatically escaped as html, without introducing additional support libraries, and high efficiency. Use- add-module compiled Tengine available dso_install dynamic loading. Set the instance (http block) location ~ /* md {mdfilter on mdfilter_utf8 on }.// Use Handler module location ~ /* mkd {mdhandler mdhandler_output html }.)
- 2014-02-06 11:50:09下载
- 积分：1
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NonlinearEquationsMatla
NonlinearEquationsMatla 非线性(NonlinearEquationsMatla non-linear)
- 2009-12-07 22:06:01下载
- 积分：1
