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This is an implementation of the algorithm for calculating the Structural SIMilarity (SSIM) index between two images. Please refer to the following paper: Z. Wang, A. C. Bovik, H. R. Sheikh, and E. P. Simoncelli, "Image quality assessment: From error visibility to structural similarity" IEEE Transactios on Image Processing, vol. 13, no. 4, pp.600-612, Apr. 2004.

基于神经网络的人类polya位点识别。。。。。(neural network)

说明：  经典的信号稀疏分解算法MP的实现。随着迭代次数增大，恢复的信号越精确。(The classic signal sparse decomposition algorithm MP . With the number of iterations increases, the more accurate the signal is recovered)

一个QAM调制的垂直切换算法，matlab仿真实现的。(A vertical QAM modulation switching algorithm, matlab simulation.)

by Minh Do Contourlet transform: an efficient and flexible multiresolution, local, and directional image ... The contourlet transform: an efficient directional multiresolution image representation, Minh N. Do and Martin Vetterli, IEEE Transactions on Image Processing, December 2005.

分形图 利用matlan程序实现了分形图的编码，可以自主调控图像颜色(Mandelbrot set )

信号功率谱分析，有各种方法，在此一一编写，方法一(Signal power spectrum analysis, there are various methods, in which 11 the preparation of, method 1)

理解信噪比、比特能量与噪声能量比的计算方法、及相互关系(Understanding and Relating Eb/No, SNR, and other Power Efficiency Metrics)

QPSK的MATLAB仿真,仅供大家学习(QPSK the MATLAB simulation, for everyone to learn)

MATLAB图像增强程序举例,灰度变换增强程序,直方图灰度变换,直方图均衡化程序举例d等(MATLAB image enhancement program for example, enhanced gray-scale transformation program, histogram gray level transformation, histogram equalization and other programs for example d)