极大值抑制与双阈值门限得到图像边缘： * nonmaxsup.m Code for performing non-maxima suppression for edge images.

读取图像文件，自动寻找双峰型直方图的阈值，HOUGH变换寻找直线，背景检测.（单高斯模型）-Read image files, automatically find the bimodal histogram threshold, HOUGH transform looking straight, background detection. (Single Gaussian model)