palmprint recgnition

hi all

i am doing eigenspectra palmprint recgnition. So How can i discard half of the fouier transformed(frenquncy domain) components in palmprint recognition.please reply me.

thanks

Answer 1

[Sean de Wolski]

theDFT = fft2(double(your_image));
theDFT = theDFT(1:ceil(size(the_DFT,1)/2),1:ceil(size(the_DFT,2)/2));