图像隐写术使用块复杂性分析

北邮通信仿真教程第10章的源程序，教程网上可以搜到，程序包括BPSK,QPSK的调制解调，载波同步，误比特率的计算等。(Beijing University of Posts and Telecommunications Communication Simulation Guide to Chapter 10 of the source, the Guide can be found online that included BPSK, QPSK modulation and demodulation, carrier synchronization, bit error rate calculation.)

matlab可视化宝典书配套源代码,全部都在里面呢。(Matlab code)

AUTOMATIC TEMPRATURE Report

使用此脚本，你挑一种彩色图像，然后它计算彩色频率图像。颜色频率图像是在哪里象素的强度代表原始图像中的像素具有相同的像素颜色作为该像素位置的频率。例如，在屏幕截图，蓝蓝的天空一片光明因为有很多同样彩色蓝色像素在图像中。无处不在原始图像中还有一个蓝色的像素，它将频率图像中具有较高价值，因为蓝色像素的频率很高。

This is a JPEG encoding & decoding program of still image. It does not use level shifting. Discrete Cosine transform (DCT) is performed both by classical & Chen s Flowgraph methods. Predefined JPEG quantization array & zigzag order are used here. RUN - LEVEL coding is used instead of Huffman coding. Compression ratio is compared for each DCT method. Effect of coarse and fine quantization is also examined. The execution time of 2 DCT methods is also checked. In addition, most energatic DCT coefficients are also applied to examine the effect in MatLab 7.4.0 R2007a. Input is 9 gray scale pictures & output is 9*9=81 pictures to compare. Blocking effect is obvious. (This is a JPEG encoding & decoding program of still image. It does not use level shifting. Discrete Cosine transform (DCT) is performed both by classical & Chen s Flowgraph methods. Predefined JPEG quantization array & zigzag order are used here. RUN - LEVEL coding is used instead of Huffman coding. Compression ratio is compared for each DCT method. Effect of coarse and fine quantization is also examined. The execution time of 2 DCT methods is also checked. In addition, most energatic DCT coefficients are also applied to examine the effect in MatLab 7.4.0 R2007a. Input is 9 gray scale pictures & output is 9*9=81 pictures to compare. Blocking effect is obvious. )

A mex file to send text to any other application

ANC算法的前馈实现，它可以实现噪声的消除，有相关的做这个的人也可以跟我交流，我遇到问题了。。13548074570(the anc used feedforward)

2fsk的调制与解调，matlab编写，绝对正确。(2fsk modulation and demodulation, matlab prepared, absolutely correct.)

cours numérique..traitement de signal en bande de base

this is the basics of neural network trainning programs.