Image_cropping

some idioms in english

说明：  相干增强扩散，可用于去噪，去噪的同时可较好的保持边缘特征 (failed to translate)

Matlab编程基础及应用，是学习matlab的好材料(Matlab programming basic and applied, is a good material to learn matlab)

2D脑图的L1小波重建图像，您需要安装Wavelab来实现此代码。(demo_Brain_2D.m demonstrate an L1-wavelet reconstruction of a brain image. )

cubic spline code information

稀疏表示的matlab代码，可以对信号进行稀疏表示，对稀疏表示有兴趣的学者，可以研究，很有帮助(Sparse representation of the matlab code, and the signal can be sparse representation, interested in sparse representation of the scholar, to study, very helpful)

利用matlab实现图像的频域滤波，包括巴特沃斯低通、理想低通、高斯低通等(Using matlab for image filtering in frequency domain, including the Butterworth low-pass, ideal low-pass, Gaussian low-pass, etc.)

地震波数值模拟 该程序为地震波数值模拟程序，基于声波方程高阶有限差分格式，程序中参数已经进行了说明，对于初学地震波数值模拟的朋友很有帮助。该程序为matlab编制，可以直接进行成图，所得图形为波场快照。(Seismic wave numerical simulation)

数字PID算法的Mtalab仿真例程，包含M文件程序和Simulink仿真(Digital PID algorithm of Mtalab simulation routines, including M file and Simulink simulation program)

matlab单枝节阻抗匹配单枝节阻抗匹配单枝节阻抗匹配(One minor impedance matching matlab)