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Message-ID:<ESppm.296691$E61.292645@newsfe09.iad>
Subject:
Re: Help me
Date:Tue, 8 Sep 2009 10:55:51 +0100
Johann Blaser wrote: > Quaidian schrieb: >> Hi, I am new to Digital Image Processing. Please help me in doing the >> following task in MatLab. >> >> (a) Take a gray scale image having rows equal to columns >> (b) Take its Fourier Transform [max, min ,average] >> (c) cLog Transform of (b) >> (d) Take ideal filters with Do=50 , 25, 200 one by one. >> (e) Apply the ideal filters one by one on (c) >> (f) Take Inverse Fourier Transform of (e) and show the output image. >> >> Kindly tell me how this will be done and how the output will look like. > > Hello Quaidian, > > there is a rich amount of material about that spread over the web. > Search for it. > For example the doc movercast.googlepages.com/ComputatingFFT2.pdf > covers most of your questions. > It was the third best hit googling for "fft2 matlab". It also sounds *exactly* like the sort of coursework question that students are asked to do with a package like Matlab. RTFM Regards, Martin Brown
Message-ID:<9094d7b9-0df8-4c35-b014-56b9c68abbf9@f18g2000prf.googlegroups.com>
Subject:
Re: Help me
Date:Tue, 8 Sep 2009 12:56:26 +0100
On Sep 8, 2:24=A0pm, Johann Blaser <johann.bla...@gmx.de> wrote: > Quaidian schrieb: > > > Hi, I am new to Digital Image Processing. Please help me in doing the > > following task in MatLab. > > > (a) Take a gray scale image having rows equal to columns > > (b) Take its Fourier Transform [max, min ,average] > > (c) cLog Transform of (b) > > (d) Take ideal filters with Do=3D50 , 25, 200 one by one. > > (e) Apply the ideal filters one by one on (c) > > (f) Take Inverse Fourier Transform of (e) and show the output image. > > > Kindly tell me how this will be done and how the output will look like. > > Hello Quaidian, > > there is a rich amount of material about that spread over the web. > Search for it. > For example the doc movercast.googlepages.com/ComputatingFFT2.pdf > covers most of your questions. > It was the third best hit googling for "fft2 matlab". > Kind regards, > > J. Blaser Thanks Brother i try it.