zuixiaoercheng

自己总结的JPG、GIF、BMP、PNG、WBMP图片文件格式文档以及相关参考标准与SPEC(their lessons JPG, GIF, BMP, PNG, WBMP picture files and related documentation and reference standard SPEC)

基于灰度共生矩阵的纹理特征提取，输出为图像四个方向共十六个特征值(Gray-level co-occurrence matrix based texture feature extraction, the output image in four directions for a total of 16 eigenvalues)

说明：  再来一个绘图程序，花了我一个上午时间才搞定。(then a drawing program, I spent a morning time to get.)

首先将非平稳的故障振动信号进行双树复小波包分解，得 到不同频带的分量；然后对每个分量求其峭度值和相关系数并进行比较；最后选取峭度值和相关系数较大的分量 进行软阈值降噪和双树复小波包重构，即可有效地消除振动信号中噪声的干扰，同时保留信号中的有效信息即实 现了故障特征信息的提取。(In view of the above situation, a new fault diagnosis method is proposed based on dual-tree complex wavelet packet transform and threshold de-noising. Firstly, the non-stationary fault signal is decomposed into several different frequency band components through dual-tree complex wavelet packet decomposition. Secondly, Kurtosis and the cross-correlation coefficient of each component are obtained and compared. Due to the kurtosis reflecting the signal variations, if the kurtosis value is bigger, the degree of the change of signal is bigger too. The correlation coefficient can reflect the proximity between the component and the original signal at the same time, the correlation coefficient is bigger, the more similar with the original signal. Finally, the components that have a bigger value are chosen to be de-noised by a soft threshold and reconstructed by dual-tree complex wavelet packet transform. The noise interference was eliminated effectively, and the effective si)

对静态图像应用canny算法提取边缘特征(The edge feature is extracted by canny algorithm of static image)

应用matlab或VC语言编制的图像处理源程序，适合课程设计。(Application matlab or VC image processing source code compiled language for curriculum design.)

一个计算多重分形谱的matlab程序，希望对大家有用。(a calculation of the multi-fractal spectrum of Matlab procedures in the hope that it may be useful right.)

这是一个可以计算图片分形维数的软件，可用于图片分形维数计算(Fractal dimension of a picture can be calculated a small software)

说明：  求解在一个三角形上的任何一点，到另外一点的距离最小的一个点。(solution in a triangle on any point to another point of the smallest distance between a point.)

说明：  编程实现灰度图像的频域滤波算法。使用Matlab实现不延拓和延拓两个版本。对于延拓和不延拓版本，在理想低通滤波器、巴特沃斯低通滤波器和高斯低通滤波器上比较两者的区别；对于延拓版本，比较不同参数设置对上述三种滤波器滤波结果的影响。(Program to realize the filtering algorithm of gray image in frequency domain. Matlab is used to realize two versions of no extension and extension. For the extension version and the non extension version, the differences between the ideal low-pass filter, Butterworth low-pass filter and Gauss low-pass filter are compared; for the extension version, the effects of different parameter settings on the above three filter results are compared.)