摘要
边缘检测是计算机图像处理中的一个重要环节 ,而常用的 Sobel算子、Prewitt算子等方法存在一些缺点。本文先介绍了小波边缘检测的原理 ,在此基础上 ,针对尺度的选取提出了一种自适应的方法 ,并做了实验。检测结果表明 ,以尺度自适应为基础的小波变换方法在边缘检测中优于 Sobel算子、Prewitt算子。总之 。
Edge detection is an important way of the computer image processing.But there are several shortcomings in Sobel algorithm and Prewitt algorithm.This paper firstly introduces the principles of wavelet edge detection.and then presents an algorithm based on the edge detection,finally does experiments.The experiments show that,the edge detection of wavelet transformation based on the scale adaption is better than that of Sobe algorithm and Prewitt algorithm.In a word,the method of this paper is an efficient edge detection algorithm for detecting edges from noised image.
出处
《仪器仪表学报》
EI
CAS
CSCD
北大核心
2003年第z1期255-257,共3页
Chinese Journal of Scientific Instrument
关键词
计算机图像处理
小波变换
边缘检测
尺度自适应
Computer image processing Wavelet transformation Edge detection Scale adaption
