matlab实现gabor filter (6)

最新推荐文章于 2021-03-19 09:37:45 发布

watkins

最新推荐文章于 2021-03-19 09:37:45 发布

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分类专栏： Algorithms 文章标签： filter matlab image output function lambda

本文链接：https://blog.youkuaiyun.com/watkinsong/article/details/7874738

本文展示了如何在MATLAB中实现Gabor滤波器，提供了调用代码，并展示两个生成的滤波器组图像结果。

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代码：

%%%%%%%VERSION 3
%%ANOTHER DESCRIBTION OF GABOR FILTER

%The Gabor filter is basically a Gaussian (with variances sx and sy along x and y-axes respectively)
%modulated by a complex sinusoid (with centre frequencies U and V along x and y-axes respectively) 
%described by the following equation
%%
%               1                -1     x  ^    y  ^
%%% Gi(x,y) = ---------- * exp ([----{(----) 2+(----) 2}])*Mi(x,y,f); 
%            2*pi*sx*sy           2    sx       sy
%%% i =1,2
%%% M1(x,y,f) = cos[2*pi*f*sqrt(x^2+y^2)];
%%% M2(x,y,f) = cos[2*pi*f*(x*cos(theta) + y*sin(theta)];

%% Describtion :

%% I : Input image
%% Sx & Sy : Variances along x and y-axes respectively
%% f : The frequency of the sinusoidal function
%% theta : The orientation of Gabor filter

%% G1 & G2 : The output filters as described above
%% gabout1 & gabout2 : The output filtered images

%%  Author : Ahmad poursaberi  e-