基于Sobel算子的图像边缘检测及其实现

Sobel算子是图像边缘检测中常用的方法之一,利用像素的左、右、上、下邻域的灰度加权算法,根据在边缘点处达到极值这一原理进行边缘检测。该方法不但产生较好的检测效果,而且对噪声具有平滑作用,可以提供较为精确的边缘方向信息。本文提供了利用Sobel算子实现灰度图像边缘检测的C 源程序。

Image Fringe Detection and Realization Based on Sobel Operator

Sobel operator is one of common Image fringe detection techniques,using image element's left and right,top and bottom neighborhood field's ash degree weighting algorithm,basing on the principle of reaching extremum at the fringe dot,we carry through fringe detection.The technique not only produces preferable detection effect,but also has the flatness effect on yawp and can offer exact fringe direction imformation.This paper offers C source program which realizes ash degree image fringe detection using Sobel operator