参考博客:http://blog.youkuaiyun.com/jinshengtao/article/details/17797641
http://matlabserver.cs.rug.nl/edgedetectionweb/web/edgedetection_params.html
Gabor的实现,可以参考这个,提供了各种版本的实现方法:http://blog.youkuaiyun.com/watkinsong/article/details/7882443
1.Introduction
下面开始介绍Gabor 滤波器以及相关的知识,首先上wiki上关于Gabor filter的介绍:In image processing, a Gabor filter, named after Dennis Gabor, is a linear filter used for edge detection. Frequency and orientation representations of Gabor filters are similar to those of the human visual system, and they have been found to be particularly appropriate for texture representation and discrimination. In the spatial domain, a 2D Gabor filter is a Gaussian kernel function modulated by a sinusoidal plane wave.说白了就是说这个滤波器与视觉通路信息处理结构很相似,从信号处理的角度上是一个正弦波平面波调制的高斯函数,公式和图如下:
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Real part: