Gabor Filter
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I am trying to execute gabor filter on images.
{%%Read clear all;
close all;
clc;
I=imread('test.png');
imshow(I);
%%Crop I2 = imcrop(I);
figure, imshow(I2)
m=size(I2,1);
n=size(I2,2);
%%Gabor
phi = 7*pi/8;
theta = 2;
sigma = 0.65*theta;
for i=1:3
for j=1:3
xprime= j*cos(phi);
yprime= i*sin(phi);
K = exp(2*pi*theta*i(xprime+ yprime));
G= exp(-(i.^2+j.^2)/(sigma^2)).*abs(K);
end
end
%%Convolve
for i=1:m
for j=1:n
J(i,j)=conv2(I2,G);
end
end
imshow(uint8(J))
I am getting this error always.
??? Subscript indices must either be real positive integers or logicals.
Not sure how to solve this...
0 Comments
Answers (1)
Walter Roberson
on 14 Sep 2011
You have
K = exp(2*pi*theta*i(xprime+ yprime));
which attempts to subscript your variable "i" at the index "xprime + yprime". Perhaps you wanted i*(xprime + yprime) ?
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