feature_extraction

对阈值隐藏图像的提取。已经经过阈值隐藏算法隐藏的二值图像，通过此算法进行信息提取。(Hidden images on the extraction threshold. Hiding algorithm has been hidden threshold binary image information extracted by this algorithm.)

差分算法和粒子群算法属于智能随机优化算法，作者将差分算法一粒子群算法相结合，得到一种混合优化算法，并编写了matlab源程序，供广大学着研究学习(Difference algorithm and particle swarm algorithm is smart stochastic optimization algorithm, the authors difference algorithm combines a particle swarm algorithm to obtain a hybrid optimization algorithm, and prepared matlab source for extensive research university with learning)

对振动信号进行分析，通过WVD进行视频分析(Vibration signals were analyzed and video analyzed by WVD)

Libelas(大规模高效立体匹配库)是cross-platfrom c++ 图书馆与MATLAB计算包装差异大的地图图像。输入 是一双纠正灰度立体图像的大小相同。输出相应的 差距的地图。(Libelas (LIBrary for Efficient LArge-scale Stereo matching) is a cross-platfrom C++ library with MATLAB wrappers for computing disparity maps of large images. Input is a rectified greyscale stereo image pair of same size. Output are the corresponding disparity maps.)

说明：  利用双线性变换法设计一个级联型的椭圆IIR滤波器，对一段含噪语音信号进行滤波去噪处理并根据滤波前后的波形和频谱分析滤波性能。本课程设计仿真平台为MATLAB7.0，开发工具是M语言编程。首先在Windows下用录音机工具录制一段语音信号，并人为加入一单频噪声，然后对信号进行频谱分析以确定所加噪声频率，并设计滤波器进行滤波去噪处理，最后比较滤波前后的波形和频谱并进行分析。(Bilinear transformation method is used to design a cascade elliptic IIR filter, for a period of noise speech signal filtering denoising processing and according to the waveform and spectrum analysis of filtering performance before and after filtering. This course design simulation platform for the MATLAB7.0, development tools is M language programming. First under Windows tool to record a voice signal, a tape recorder and deliberately added a single frequency noise, and then the signal to determine the added noise frequency spectrum analysis, and design the filter for filtering denoising processing, finally compared before and after the waveform and spectrum of filtering and analyzed. )

This program Is an IR bandpass filter which filters the signal that is needed for processing.

基于风光储多分布式电源研究设计的控制系统进行了实验研究(the designed control system is studied based on Wind-PV-Battery micro grid.)

卡尔曼滤波程序实现，非线性卡尔曼滤波，matlab程序(Nonlinear Kalman filtering, matlab program)

图像分形盒维数的算法源程序.此算法是基于黑白二值图像的，因此，需要对导入的图片进行二值化处理，因此算法存在一定误差，但是此算法误差控制在4 以内(Image fractal dimension algorithm source code box This algorithm is based on black and white binary image, and therefore, need to import the picture binarization processing, so the algorithm there are some errors, but this algorithm is less than 4 error control)

matlab实现的FGLG算法，效果较好，可以直接使用，也可以参考学习(FGLG algorithm matlab implementation, better, can be used directly, or you can refer to learning)