freqchar

This code and doucument describe the image segementation using active contore models [snake].

用Matlab实现人脸图像分割的程序，可以使用(Implementation of a Face with Matlab segmentation procedure, you can use)

界面响应键盘事件，按下键盘时的反应，采用keypressfcn函数(Interface response keyboard events, press the keyboard response, the keypressfcn function)

A vocoder is an analysis/synthesis system, mostly used for speech. It is a simple vocoder that uses auto-correlation method to estimate the pitch.

Detects lines in a binary image using common computer vision operation known as the Hough Transform.

说明：  东北三省2009年数学建模的B题：丁克现象，已获联赛二等奖，现将论文以及Matlab源代码上传，希望对相关人员有所帮助。(Northeast B, Mathematical Modeling in 2009 Topic: DINK phenomenon, has been league second prize, papers, and now Matlab source code for uploading, hope relevant personnel be helpful.)

全排列矩阵，依次输入exchange swap tianchongJ即可，若想修改全排列矩阵的大小，可在MATLAB中打开tianchongJ修改J和N。 (Permutation matrix, followed by the input exchange swap tianchongJ can, if you want to modify the size of permutation matrix can be modified in MATLAB to open tianchongJ J and N.)

这是一个Matlab程序，用牛顿插值法，补充缺失的数据，从而保证了数据的完整性。(This is a Matlab program, using Newton s interpolation method, add missing data, thus ensuring data integrity.)

there is code for sampling a signal and adding random noise in signal...

Matlab 使用的程序，可以实现很重要的功能(Matlab using the program, can achieve a very important function)