C-and-MATLAB-examples

QR码作为一种可高速、全方位识别的二维条码,已经在各行各业中得到了应用,并具有很大发展潜力.本文针对QR码图像的识别过程中可能遇到的图像噪声干扰、QR码占实际拍摄图像的一部分、倾斜、几何失真等问题进行了研究,提出了通过改进型中值滤波去除噪声,使用QR码符号特性定位并对倾斜图像进行旋转,对失真不严重的图像采用控制点变换和双线性插值方法进行几何校正.实验证明, 本文的方法简单有效, 可以用于提高条码的正确识别率.(As a high-speed, full identification of the two-dimensional bar code, QR code has been applied in all walks of life, and also has great potential for development. In this paper, aiming at QR code image recognition process may be encountered in noise interference, QR code accounting for the actual captured image just a part, slant, geometric distortion, and other issues have been studied, put forward through improved median filter to remove noise, use QR code symbol characteristics to locate and rotate the tilted image, distortion which is not serious use control-point transform and spatial bilinear interpolation method for geometric correction. The results show that this method is simple and effective, can be used to improve the QR code correct recognition rate.)

说明：  LDPC码的BP算法译码MATLAB程序(LDPC decoding algorithm BP MATLAB)

PWM converter from DC to AC forme of energy

频幕上的图形捕捉代码，例如在频幕上捕捉手型等，捕捉完后再进行样条插值即可相似图形(Frequency of the graphics on the screen capture code, For example, in the the frequency screen capture hand type, after their capture spline interpolation of similar figures)

说明：  本文件为常见聚类算法测试数据集 ，UCI上常用的聚类算法数据集(This document is a common clustering algorithm test data set.)

说明：  包里有直流发电机simulink模型，用于直流发电机的控制仿真。(Bag simulink model has DC generator, DC generator for the control simulation.)

计算关联度，本方法使用的是归一化的方法，和传统的经典关联度计算方法相比较，增加了对各个权重的分析和计算，使结果更加有说服力。(Correlation calculation, this method uses the normalized method, and the traditional classical correlation method compared to an increase of weights of the various analysis and calculations makes the results more convincing.)

计算空间几何距离的MATLAB计算机算法(Spatial geometric distance calculation algorithm MATLAB computer)

关于光栅计算模拟其中一部分，光栅透射率等等(Computer simulation on the part of the grating, grating transmission rates, etc.)

用Matlab编程实现小波变换小波变换的mallat算法，多孔算法，小波提升算法(Programming with Matlab wavelet transform mallat wavelet transform algorithm, porous algorithm, wavelet lifting scheme)