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Human Face Recognition |
MATLAB Program 4--alphanumeric char detection & fourier transform | |
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%same alphanumeric char detection & fourier transform.. clear; I = imread('apple1.bmp'); J= imread('apple2.bmp'); BW1 =fft2(I);
imshow(BW1);figure; BW2 =fft2(J); imshow(BW2);figure;
P= conj(BW2); imshow(P); d = fft2(BW1.*BW2); %c=xcorr(BW1,p); %imshow(d);figure; %imshow(c); %S = P*BW2; %Q = fft2(S,3,3); %imshow(d);figure; %plot(Q,Z); d = fspecial('gaussian'); figure, freqz2(d,[64 64]), axis([-1 1 -1 1 0 .8])
Figure1 Figure2
Figure 3 Figure 4 First of all both the alphabets are read in I & J . Then fast fourier transform of the individual alphabets and the product of first alphabet & the complex conjugate of second alphabet is performed . Results are shown in fig1, fig2 ,fig3 & fig4 respectively.
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