二阶高斯低通滤波器，实现对图像的平滑处理，-Gaussian second-order low-pass filter, to achieve the smoothing of images,

A better version of guassian mixture model for background subtraction and foreground detection, using matlab and c language to implement it.

霍夫变换，直线检测，包括了边缘检测，双向高斯滤波。自己写的函数， 不是toolbox自带函数。图像处理-Hough Transform，line detect, edge detect, sep-guassian filter, matlab, image processing.self-define function， no toolbox