一种基于方差的图像边缘检测算法

鉴于传统微分边缘检测算法不适用于识别图像中与背景灰度区别较小的弱边缘,提出了基于方差的图像边缘检测算法,并介绍了其原理和算法实现过程。实验表明,该算法能较好检测出背景灰度区别较小的物体边缘,并有一定的抗噪能力,提高了图像边缘检测效果。

An Image Edge Detection Algorithm Based on the Variance

Because of that the edge detection algorithm based differentiation is not used to dectect the weak edge in the image that the difference between object and background is very little.An edge detection algorithm based on variance was designed,and the mechanism and algorithm was introduced.Simulation shows that this algorithm has a high precision in image detection abetter anthoise ability and im-proving image dection effect.