February 21st, 2012, 07:29 AM
Gabor filter in c
I am trying to apply gabor filter to a fingerprint for fingerprint enhancement using c.
My image size is 280x340.Gabor filter equation is :
F(x,y) = exp(-0.5*[x^2/sigma_x^2 + y^2/sigma_y^2]) * cos(2*PI*f*x);
I am able to execute this equation.But my problem is i am calculating the equation for 280x340 times and it is taking time(4 sec 2.93GHz 3GB ram).
Can any one told me how to reduce the executation time ?
What I know exp function is taking time. So is there any equivalent of exp which will take less time to execute ?
tanks in advance.
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