what should be the parameter(sigma,lambda,psi,gamma,theta)values in gabor program ?

Question

Sukanya Sudhakar 2013-3-19

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https://ww2.mathworks.cn/matlabcentral/answers/67800-what-should-be-the-parameter-sigma-lambda-psi-gamma-theta-values-in-gabor-program

回答： chitresh 2013-12-2

clc; clear all; close all; I=imread('katrina.jpg'); I=rgb2gray(I); I=imresize(I,[64 64],'bilinear'); [N N]=size(I) imshow(I) I=im2double(I); sigma=input('Enter the value of sigma '); psi=input('Enter the value of psi '); gamma=input('Enter the value of gamma '); n1=input('Enter the number of lambda you want to take '); lambda=input('Enter the different values of lambda '); n2=input('Enter the number of theta you want to take '); theta=input('Enter the different values of theta'); for i=1:n1 l=lambda(i); figure for j=1:n2 t=theta(j); g1=gabor_fn(sigma,t,l,psi,gamma); display('value of lambda');display(l); display('value of theta ');display(t); display('output of gabor filter will be');display(g1); % figure subplot(1,n2,j); GT=conv2(I,double(g1),'same') imshow(GT); end end