zhan_fdtd3D

matlab画图方法介绍，自己留用的资料，欢迎使用交流。(matlab drawing method, the information retained their own are welcome to use the exchange.)

vc与matlab7的混编，采用的混编方式是通过shared(vc matlab7 with the mixing of the way through the air shared)

巴特沃斯滤波器幅频特性图和相频特性图；全通滤波器幅频特性图和相拼特性图(Butterworth filter amplitude-frequency characteristic and phase frequency characteristic figure All-pass filter amplitude-frequency characteristic and phase characteristic figure)

MATLAB霍夫曼Huffman编码译码GUI界面设计 源程序代码(MATLAB Huffman Huffman coding and decoding GUI interface design source code)

灰度变换法实现彩色处理，《计算机图像处理与识别技术》源地面 (color transform)

this will perform thresholding operation on input image

This is a test code to show the spectrum of sine wave.

Changing the polar circle density

codes for image processing2

用于图像的压缩，可以处理许多的图像问题，好可以节省很大的内存和空间(press)