Wavelet transform based edge detection of non-uniform illumination image

摘要：

The distributions of irradiance on the image plane decrease away from the center of the image even if the scene is a uniform white field.This crucial problem is posed in digital image processing,such as edge detection and stereo matching.This paper presents an edge detection method of non-uniform illumination image which uses fitting calibration algorithm to correct the non-uniformity and wavelet transform to extract edges from the images corrected.The experimental results demonstrated the validity of our theoretical model and the effectiveness of wavelet transforms based edge detection of non-uniform illumination image.

关键词： wavelet transform non-uniformity correction edge detection

作者: W.Pei Y.Y.Zhu

作者单位: Environmental Science and Engineering College,Dalian Maritime University,P.R.China 116026 Civil Engineering department,Dalian Fisheries University,P.R.China 116023

会议类型: 国际会议

会议名称: 第16届国际地理信息科学与技术大会(16th International Conference on GeoInformatics and the Joint Conference)

会议地点: 广州

会议语种:英文

在线出版日期: 2008-06-28（万方平台首次上网日期，不代表论文的发表时间）