Re: MOtion deblur

From	Martin Leese <please@see.Web.for.e-mail.INVALID>
Newsgroups	sci.image.processing
Subject	Re: MOtion deblur
Date	2016-11-03 08:51 -0600
Organization	A noiseless patient Spider
Message-ID	<nvfith$g1$1@dont-email.me> (permalink)
References	(2 earlier) <c92ed908-121e-46d8-8751-dcdd00a10343@googlegroups.com> <nv7nfh$k9m$1@dont-email.me> <a0cb9b79-c019-4ecd-9904-4dbac6ad33d2@googlegroups.com> <nvacre$omk$1@dont-email.me> <2317cd1d-e9d1-464c-8778-a2c377519d95@googlegroups.com>

Show all headers | View raw

pdaraja@gmail.com wrote:
>> The blur function, Blur(s), is also called
>> the point spread function.  It is the result,
>> in the space domain, of what would be
>> produced from the blurring of a single point
>> source in the centre of the image.
>>
>> For constant velocity motion, a point source
>> is blurred to a straight line.  So, in this
>> case, the function Blur(s) is the image of a
>> single straight line which begins in the
>> centre of the image.  A good way to estimate
>> the length and direction of the required
>> straight line is to examine what happens to
>> naturally occurring point sources in the
>> original unblurred image.
>>
> thanks for your reply.
> i have tried wiener filter as well as blind deconvolution method to deblur the image. 
> in the first case(wiener filter)i have given the artificial motion blurred image as a input. then i have assigned the point spread function as motion(length, direction). then there is a deconvolution output with the minimal accuracy.
> in second case, i have given the same input to blind deconvolution. but here we need to specify the initial size of PSF(blur kernel.."that i don't know how to assign the size of PSF in matlab"). then after the desired iteration, it will give the average result(not clear) .
> 
> hence i have understood that PSF is very important factor to deblur any image. can you help me hoe to find the blur kernel of the blurred image(input)

It seems your problem is how to drive
MATLAB's deconvolution function.  I have
never used MATLAB, so cannot help you
further.

-- 
Regards,
Martin Leese
E-mail: please@see.Web.for.e-mail.INVALID
Web: http://members.tripod.com/martin_leese/

Thread

MOtion deblur pdaraja@gmail.com - 2016-10-26 23:57 -0700
  Re: MOtion deblur Martin Leese <please@see.Web.for.e-mail.INVALID> - 2016-10-27 11:05 -0600
    Re: MOtion deblur pdaraja@gmail.com - 2016-10-30 22:40 -0700
      Re: MOtion deblur Martin Leese <please@see.Web.for.e-mail.INVALID> - 2016-10-31 09:20 -0600
        Re: MOtion deblur pdaraja@gmail.com - 2016-11-01 00:25 -0700
          Re: MOtion deblur pdaraja@gmail.com - 2016-11-01 00:26 -0700
          Re: MOtion deblur Martin Leese <please@see.Web.for.e-mail.INVALID> - 2016-11-01 09:37 -0600
            Re: MOtion deblur pdaraja@gmail.com - 2016-11-02 23:12 -0700
              Re: MOtion deblur Martin Leese <please@see.Web.for.e-mail.INVALID> - 2016-11-03 08:51 -0600
                Re: MOtion deblur pdaraja@gmail.com - 2016-11-03 21:43 -0700
                Re: MOtion deblur dale <dale@dalekelly.org> - 2016-11-04 21:08 -0400

csiph-web