摘要
边缘检测是计算机图像处理的一个重要环节,但是常用的方法存在一些缺点。本文介绍了小波变换模极大值法进行边缘检测的原理。检测结果表明,小波变换方法能有效的检测出边缘,优于Sobel算子、Prewitt算子、Roberts算子。
Edge detection is an important method in image processing. However, there are several shortcomings in algorithms that we usually use. This paper introduces the principle of wavelet transform modulus maxima applying to edge detection. The experiments show that, this algorithm can efficiently detect edges from image. It is better than Sobel algorithm , Prewitt algorithm and Roberts algorithm.
出处
《北京广播学院学报（自然科学版）》
2005年第1期54-58,共5页
Journal of Beijing Broadcasting Institute(Science and Technology)
关键词
边缘检测
小波变换
模极大值
阈值
Edge Detection
Wavelet Transform
Modulus Maximum
Threshold
