Penny-shaped

该算法是通过统计图像某一边缘法向方向的灰度变化情况来进行评价。即灰度变化越剧烈， 边缘越清晰， 图像也越清晰。(The algorithm is an edge of the image through the statistical method to change the direction of the gray scale to be evaluated. The more intense the gray change, the more clear the edge of the image are more clear.)

主成分分析的Matlab程序，包括完整的计算过程，相关参数计算及绘图(Principal component analysis)

Matlab offers many facilities for problem solving. The following solutions are provided to questions that do not provide complete Matlab code. They are mainly intended to demonstrate features mentioned in the book.

说明：  利用小波分析的方法，来实现数字图像的分解(using wavelet for image)

it is a matlab file.it is used to do some basic rd in matlab.

霍夫曼编码的matlab实现，霍夫曼编码的matlab实现，通过matlab实现(Huffman coding matlab to achieve)

This rar file contains some matlab programs and simulation results(generation of on off,isdn,video,data traffic)..

激光散斑的模拟仿真。包括圆复高斯非成像散斑，圆复高斯成像散斑，基于copula联合分布函数的相关序列散斑。给出了GUI。可以实现散斑图，散斑强度分布图，相关曲线图。(the simulation of laser speckle the copula-based simulation of laser speckle)

声子晶体的源程序：圆柱形散射体呈正方形排列的Ｚ模的程序(Phononic crystal source: cylindrical scattering takes the shape of a square array of Z-mode program)

计算两个晶体方向之间的夹角，并画图，适合初学者(Calculate the angle between two crystallographic directions, and drawing for beginners)