| 焊缝图像边缘检测方法探讨 |
| |
| 作者单位： | 武汉理工大学机电工程院 湖北武汉430070 |
| |
| 摘 要： | 边缘特征是图象最为有用的高频信息。由于存在噪声,采用经典算子的方法,图像的边缘检测效果不太好。本文首先介绍了经典的边缘检测。然后,针对上述算法的缺陷,提出基于小波变换的边缘检测。实验结果分析表明,在边缘精度、强弱边缘提取和噪声抑制方面,该算法是有效的。
|
| 关 键 词： | 小波变换 边缘检测 图像处理 阈值 |
An Image Edge Detection Method Based on the Wavelet Transformation |
| |
| Authors: | Han Shao Jun XU Peng |
| |
| Abstract: | Edge features is the most important high frequency information of an image.Due to noise,the effect of edge detection is not very good with classic Roberts operator and Prewitt operator,etc.First of all,this chapter introduce classic edge detection method,then according these methods' limitation,advance a method base on wavelet transformation.The experiment indicates that this method is achievable,especially in edge precision,edge distill and depress noise. |
| |
| Keywords: | wavelet transformation edge detection image processing threshold |
| 本文献已被 CNKI 等数据库收录！ |
|
