help for image restore
in [Matlab]
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From: Igor Golikov on 5 Jun 2010 07:23 Hi I have an image with echo. I know that the echo was 5 pixels to Y and 15 to X. I need to do invesrse filtering. I understand that I need to divide the FFT of distored image by the fft of kernel. How can I build such kernel for echo?? Thanks
From: sscnekro on 5 Jun 2010 08:16 > I need to do invesrse filtering. I understand that I need to divide > the FFT of distored image by the fft of kernel. The stuff probably makes fun, but where's the spirit today with evb? Hint: using search engines you'll hit on things incl. the ML C. sites and much more... http://www1.idc.ac.il/toky/imageProc-08/lectures/restorationX4.pdf
From: Igor Golikov on 5 Jun 2010 12:24 On Jun 5, 2:16 pm, "sscnekro " <stiahni.m...(a)zoznam.sk> wrote: > > I need to do invesrse filtering. I understand that I need to divide > > the FFT of distored image by the fft of kernel. > > The stuff probably makes fun, but where's the spirit today with evb? Hint: using search engines you'll hit on things incl. the ML C. sites and much more...http://www1.idc.ac.il/toky/imageProc-08/lectures/restorationX4.pdf Hi It will be very funny.... I AM TAKING EXACLY THE SAME COURSE WITH THE SAME LECTURER!!! And he doesnt explain how to build the kernel for echoed image... Thanks anyway:)
From: sscnekro on 5 Jun 2010 13:45 > Hi > It will be very funny.... > I AM TAKING EXACLY THE SAME COURSE WITH THE SAME LECTURER!!! > And he doesnt explain how to build the kernel for echoed image... > Thanks anyway:) I'm not taking the course and don't know anything on the stuff! I just tried to encourage you to have a look around, the answer must be right there. I liked the presentation I referred to, simply by looking on it .. lecturer seems perfect. Fancy feeling the answer is in the slides. Convolution rule, Wiener filter? Otherwise try to drop a few lines of commands and hope that sb into the thing will pass by. A post without code / commands is rarely answered.
From: Igor Golikov on 5 Jun 2010 16:49
On Jun 5, 7:45 pm, "sscnekro " <stiahni.m...(a)zoznam.sk> wrote: > > Hi > > It will be very funny.... > > I AM TAKING EXACLY THE SAME COURSE WITH THE SAME LECTURER!!! > > And he doesnt explain how to build the kernel for echoed image... > > Thanks anyway:) > > I'm not taking the course and don't know anything on the stuff! I just tried to encourage you to have a look around, the answer must be right there. I liked the presentation I referred to, simply by looking on it .. lecturer seems perfect. Fancy feeling the answer is in the slides. Convolution rule, Wiener filter? Otherwise try to drop a few lines of commands and hope that sb into the thing will pass by. A post without code / commands is rarely answered. I want to use wienner filter but how can i determine H? Thats my question. Thanks |