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天在维普下载了一篇SPIHT算法改进的论文，（耿兴云，《基于改进SPIHT的静态图像编码》，电脑知识与技术：学术交流-2007年5期），我根据该文提出的改进算法，用Matlab来实现，却发现改进算法的程序运行速度比原算法还要慢，希望有兴趣的朋友进来看看，评论一下原因。(Days in the VIP downloaded a SPIHT algorithm to improve the paper, (Gengxing Yun, " based on improved SPIHT still image coding," Computer Knowledge and Technology: 5-year academic exchange-2 007), in accordance with this paper the improved algorithm Matlab to achieve, but found that the improved algorithm runs faster than the original algorithm is also slow, hope to have interested friends come to see, comment on why.)

Compute log(sum(exp(x),dim)) while avoiding numerical underflow. By default dim = 1 (columns).

神经源PID控制源码，。M文件，是以进行PID控制时的必备文件，可以参考一下(PID control of neuronal source. M files, based on the PID control of the required documents for reference)

数字图像处理课件-matlab语言基础，很适合做图像如理入门使用，系列之1数学预备知识(Digital image processing based on matlab language courseware), such as introduction to use, very suitable for image series 1)

face detection and face recognition system .a test code for reasercher

用matlab实现的一个图像处理的简易Photoshop，主函数名为：Easy_DIP_byCmQ.m将整个解压，设为工作目录即可运行（含GUI）。包含图1形空间点变换，2图像空间模块变换，3滤波，4形态处理，5图像检测和分割，6傅里叶变换，7图像剪切和缩放等功能。(Using matlab to achieve a simple Photoshop image processing, the main function called: Easy_DIP_byCmQ.m entire decompression, the working directory is set to run (including GUI). Figure 1 contains a shaped spatial point conversion, two image space module transform, 3 filter, 4 forms processing, image detection and segmentation 5, 6 Fourier transform, 7 image cropping and scaling functions.)

Bee Algorithm for optimization

可以直接读取txt格式的信号文件，一般是指振动波形数据。只需要输入目录和频率即可，出来就是波形图，该vi还对信号做了去直流的处理。(the vi can read the signal file which is writed in text formation。)

music算法的matlab实现，可以直接运行(music algorithm matlab implementation can be directly run)

说明：  介绍用MATLAB实现OFDM技术的文章，其中包括matlab程序。(Introduced the use of MATLAB to achieve OFDM technology articles, including the matlab program.)