?? 14-6.m
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PSF = fspecial('gaussian',13,1);
OTF = psf2otf(PSF,[31 31]);
% PSF轉(zhuǎn)換成OTF
subplot(1,2,1); surf(PSF); title('PSF');
axis square; axis tight
subplot(1,2,2); surf(abs(OTF)); title('corresponding |OTF|');
axis square; axis tight
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