MultHalfBand

这是胡不变矩的经典matlab程序，其实就是不变矩的验证，七阶矩.(This is the classic Hu invariant moments matlab program, in fact, the same moment the validation, seven-order moments.)

这个代码是用Matlab写的心形代码，是通过点的形式编写的，看起来很有意思。(This code is written using Matlab heart-shaped code, through the form of written, looks very interesting.)

说明：  信道编码中使用的两种法尔码算法程序，可以用于GSM系统的信道外编码部分。(channel coding used in both Fall code algorithm, which can be used GSM system outside the channel coding.)

Edge detection result should be enhanced using linear method like Median filter to remove the garbage around the pupil to gain clear pupil to determine perfect centre. Get the centre of the pupil by counting the number of black pixels (zero value) of each column and row. Then get each row and column that has the maximum number of these black pixels. Then determine the center by simple calculation according to the image coordinate to set it correct on the image, consequently we can determine the radius of the pupil. Thus we can find the pupillary boundary (inner). A similar procedure is extended by using a coarse scale to locate the outer boundary (limbus) which can be apparent by using the mid-point algorithms of circle and ellipse.

说明：  往信号里添加一个高斯白噪声，并将其显示出来(Add Gaussian white noise to the signal)

matlab中边频的示例程序，操作简单，可直接复制，便于调用。(side frequency in matlab sample program, simple operation, can be directly copied, easy call.)

matlab code for image retrieval

基于matlab 视频流的车辆计数 可以直接使用 输入为。avi(You can directly use the input video stream based on the vehicle matlab count. avi)

求小波分析后各层系数的功率谱值，希望对大家有所帮助( 自动检测语言 划词 双语对照 中文 » 英语<~复制 For each layer coefficient after wavelet power spectrum values, hope to be of help )

matlab读取心电信号的程序，注意修改数据路径。(The program which is load on the datas of ECG，Please pay attention to the road of the ECG datas。The ECG datas are collect from the MIT center。)