基于小波变换的方向滤波

摘要：

In the images with local strong direction, there is often noise in other directions. To elimi-nate the noise, we propose a novel directional filtering method which takes advantage of directional se-lection ability of wavelet transform skillfully through rotating the image to be filtered and controls the times of rotation through direction quantization. This method employs only directional characteristics for denoising and there is no need to evaluate the frequency characteristics or statistical characteristics of signals and noise, which makes this method easy to implement. The experimental results on finger-print image enhancement show good ability of this method.

关键词：Directional filtering、Wavelet transform、Image enhancement

所属期刊栏目：28

分类号：TP3(计算技术、计算机技术)

在线出版日期：2004-01-08（万方平台首次上网日期，不代表论文的发表时间）

页数：共4页

页码：65-68