Comments on: Image deblurring – Introduction http://blogs.mathworks.com/steve/2007/08/13/image-deblurring-introduction/ Steve Eddins manages the Image & Geospatial development team at The MathWorks and coauthored Digital Image Processing Using MATLAB. He writes here about image processing concepts, algorithm implementations, and MATLAB. Wed, 01 Feb 2012 13:58:45 +0000 hourly 1 http://wordpress.org/?v=3.2.1 By: Niharika http://blogs.mathworks.com/steve/2007/08/13/image-deblurring-introduction/#comment-24799 Niharika Tue, 17 Jan 2012 17:15:39 +0000 http://blogs.mathworks.com/steve/2007/08/13/image-deblurring-introduction/#comment-24799 Thank you for sharing valuable information. I am working on a set of images from a microscope which have varying regions of focus and blur.(the section on the slide was thick so the images get out of focus in certain regions beacause of uneven surface) How do I begin with solving the problem. I know the specifications of the camera and the distance the object was placed etc. Thanks! Thank you for sharing valuable information.

I am working on a set of images from a microscope which have varying regions of focus and blur.(the section on the slide was thick so the images get out of focus in certain regions beacause of uneven surface)
How do I begin with solving the problem.
I know the specifications of the camera and the distance the object was placed etc.

Thanks!

]]> By: qazi http://blogs.mathworks.com/steve/2007/08/13/image-deblurring-introduction/#comment-24727 qazi Mon, 05 Dec 2011 17:34:16 +0000 http://blogs.mathworks.com/steve/2007/08/13/image-deblurring-introduction/#comment-24727 kindly also guide me.. What should i do if i have real image and blurred image..and I want to estimate PSF using these images...??? kindly also guide me..
What should i do if i have real image and blurred image..and
I want to estimate PSF using these images…???

]]> By: qazi http://blogs.mathworks.com/steve/2007/08/13/image-deblurring-introduction/#comment-24723 qazi Sun, 04 Dec 2011 09:38:39 +0000 http://blogs.mathworks.com/steve/2007/08/13/image-deblurring-introduction/#comment-24723 Thanks alot Steve for such helpful blog can u plz let me knw what sould b result of this. cam_in = real(ifft2(fft2(cam_blur)./fft2(cam))); imshow(cam_in) what i guessed is that it would be h (PSF) .I m getting all zeros. Thanks alot Steve for such helpful blog

can u plz let me knw what sould b result of this.

cam_in = real(ifft2(fft2(cam_blur)./fft2(cam)));
imshow(cam_in)

what i guessed is that it would be h (PSF) .I m getting all zeros.

]]> By: Steve http://blogs.mathworks.com/steve/2007/08/13/image-deblurring-introduction/#comment-24625 Steve Fri, 11 Nov 2011 22:14:49 +0000 http://blogs.mathworks.com/steve/2007/08/13/image-deblurring-introduction/#comment-24625 Rambo—See the <a href="http://blogs.mathworks.com/steve/2007/11/02/image-deblurring-wiener-filter/" rel="nofollow">02-Nov-2007 guest post</a> on Wiener filter deblurring. Rambo—See the 02-Nov-2007 guest post on Wiener filter deblurring.

]]> By: Rambo http://blogs.mathworks.com/steve/2007/08/13/image-deblurring-introduction/#comment-24614 Rambo Wed, 09 Nov 2011 09:54:07 +0000 http://blogs.mathworks.com/steve/2007/08/13/image-deblurring-introduction/#comment-24614 Hi Steve! thanks for this article. It is written very well and I believe it serves as a nice starting point for people who are interested in image deblurring, because you present very clearly the main "ingredients" (and problems) of deconvolution. Perhaps I missed something in your article, but I would like to know how this basic approach that you presented here relates to other well-known approaches like Richardson-Lucy algorithm, or Wiener deconvolution. Thanks. Hi Steve!

thanks for this article. It is written very well and I believe it serves as a nice starting point for people who are interested in image deblurring, because you present very clearly the main “ingredients” (and problems) of deconvolution.

Perhaps I missed something in your article, but I would like to know how this basic approach that you presented here relates to other well-known approaches like Richardson-Lucy algorithm, or Wiener deconvolution.

Thanks.

]]> By: Aftab http://blogs.mathworks.com/steve/2007/08/13/image-deblurring-introduction/#comment-24514 Aftab Tue, 04 Oct 2011 13:36:47 +0000 http://blogs.mathworks.com/steve/2007/08/13/image-deblurring-introduction/#comment-24514 Hi Steve - I am working on blind image de blurring myself as well. The the above mentioned process of yours' works fine for artificially blurred images i.e. we blur an image by a specific PSF and we can later de-blur it using blind and non-blind de-blurring techniques. But the problem is that for real life images the process of de-blurring doesn't provide any significant results. Any tips? Hi Steve – I am working on blind image de blurring myself as well. The the above mentioned process of yours’ works fine for artificially blurred images i.e. we blur an image by a specific PSF and we can later de-blur it using blind and non-blind de-blurring techniques.

But the problem is that for real life images the process of de-blurring doesn’t provide any significant results. Any tips?

]]> By: Steve http://blogs.mathworks.com/steve/2007/08/13/image-deblurring-introduction/#comment-24404 Steve Sat, 13 Aug 2011 14:28:28 +0000 http://blogs.mathworks.com/steve/2007/08/13/image-deblurring-introduction/#comment-24404 Monire—No, I don't know anything about that. Monire—No, I don’t know anything about that.

]]> By: monire http://blogs.mathworks.com/steve/2007/08/13/image-deblurring-introduction/#comment-24403 monire Sat, 13 Aug 2011 14:07:07 +0000 http://blogs.mathworks.com/steve/2007/08/13/image-deblurring-introduction/#comment-24403 thank you so much it was so usefull for me. can you help me for debulurring image with RBF ? thank you so much
it was so usefull for me.
can you help me for debulurring image with RBF ?

]]> By: Steve http://blogs.mathworks.com/steve/2007/08/13/image-deblurring-introduction/#comment-23684 Steve Sun, 07 Nov 2010 22:08:20 +0000 http://blogs.mathworks.com/steve/2007/08/13/image-deblurring-introduction/#comment-23684 Sarath—Are you sure you're running exactly the same code I'm running? Click on the "Get the MATLAB code" link at the bottom of the post. Sarath—Are you sure you’re running exactly the same code I’m running? Click on the “Get the MATLAB code” link at the bottom of the post.

]]> By: Sarath http://blogs.mathworks.com/steve/2007/08/13/image-deblurring-introduction/#comment-23683 Sarath Sun, 07 Nov 2010 10:55:35 +0000 http://blogs.mathworks.com/steve/2007/08/13/image-deblurring-introduction/#comment-23683 i do not what is the reason exactly when im executing the code given by u here,it is showing an error at fft2 function.im unable to rectify that.i have been trying these from 5 days but could not do it.can u please tell me the reason.im very much interested in the algorithm given by you here. i do not what is the reason exactly when im executing the code given by u here,it is showing an error at fft2 function.im unable to rectify that.i have been trying these from 5 days but could not do it.can u please tell me the reason.im very much interested in the algorithm given by you here.

]]>