function?DFT_2Image（）
Dog=imread（‘Dog.jpg‘）;
Owl=imread（‘Owl.jpg‘）;

subplot（321）;
imshow（Dog）;
title（‘The?picture?of?Dog‘）;
subplot（322）;
imshow（Owl）;
title（‘The?picture?of?Owl‘）;

grayDog=rgb2gray（Dog）;
subplot（323）;
imshow（grayDog）;
title（‘The?gray?picture?of?Dog‘）;
grayOwl=rgb2gray（Owl）;
subplot（324）;
imshow（grayOwl）;
title（‘The?gray?picture?of?Owl‘）;

dogAmp=abs（fft2（double（grayDog）））;
dogPhase=angle（fft2（double（grayDog）））;
owlAmp=abs（fft2（double（grayOwl）））;
owlPhase=angle（fft2（double（grayOwl）））;

exchangeDog=ifft2（dogAmp.*exp（sqrt（-1）*owlPhase））;
exchangeOwl=ifft2（owlAmp.*exp（sqrt（-1）*dogPhase））;
subplot（325）;
imshow（abs（exchangeDog）[]）;
title（‘The?picture?of?Dog‘）;
subplot（326）;
imshow（abs（exchangeOwl）[]）;
title（‘The?picture?of?Owl‘）;

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件??????26104??2014-04-01?16:01??DFT\DFT_2Image.jpg

?????文件????????799??2014-04-01?15:59??DFT\DFT_2Image.m

?????文件??????21210??2014-04-01?16:02??DFT\DFT_IDFT.jpg

?????文件????????467??2014-04-01?16:20??DFT\DFT_IDFT.m

?????文件??????19859??2014-04-01?14:22??DFT\Dog.jpg

?????文件??????14078??2014-02-24?20:37??DFT\MyPicture.jpg

?????文件??????41836??2014-04-01?12:44??DFT\Owl.jpg

?????目錄??????????0??2014-04-01?16:20??DFT

-----------?---------??----------?-----??----

???????????????124353????????????????????8