error result for circular gabor filter code

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hind
hind 2011-11-21
评论： chitresh 2013-11-30
hi,
I want to ask about circular gabor filter, I write a code in matlab but it doesn't give me correct output I think there is mistake but I don’t know where
here is the code NOTE sigma is the standard deviation of gaussian and fc is the central frequency of circular gabor
for x = -fix(sigma):fix(sigma)
for y = -fix(sigma):fix(sigma)
G(fix(sigma)+x+1,fix(sigma)+y+1) = exp(-.5*((x/sigma)^2+(y/sigma)^2))* cos(2*pi*fc*(sqrt((x)^2+(y)^2)));
end end
please if you could, help me
thank you and I appreciate your time

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回答（1 个）

hind
hind 2011-11-23
please any one my help me,
  1 个评论
chitresh
chitresh 2013-11-30
i thing you write some thing wrong in the code... gb=exp(-0.5(x_theta.^2/sigma_x^2+y_theta.^2/sigma_y^2)).*cos(2*pi/lambda*x_theta+psi);

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