Motion Blur removal

Discuss digital image processing techniques and algorithms. We encourage its application to ImageMagick but you can discuss any software solutions here.
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fmw42
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Re: Motion Blur removal

Post by fmw42 » 2016-11-08T10:40:35-07:00

As I mentioned above, typically Lucy and blind deconvolution do not work well with ideal motion blur or defocus. The only one that may work is Wiener. At least that is what I have I have used in my scripts.

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Re: Motion Blur removal

Post by pdaraja » 2016-11-08T21:43:14-07:00

http://ieeexplore.ieee.org/stamp/stamp. ... er=4408904

this is the paper, where they are doing blur removal of non uniform motion. but i don't know how it will work. code is not provided.

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Re: Motion Blur removal

Post by fmw42 » 2016-11-08T22:31:48-07:00

Sorry, I do not know how they do it and cannot access that paper.

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Re: Motion Blur removal

Post by pdaraja » 2016-11-08T22:33:37-07:00


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fmw42
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Re: Motion Blur removal

Post by fmw42 » 2016-11-08T22:43:38-07:00

Thanks for the reference. I will have to look at it in more depth later. But it requires multiple blurred input images and segments the images into regions, each of which have a separate motion blur, as best I can tell on quick look. The references in the paper are interesting and I will have to look at them also. But they have very specialized code and it is not very conducive to scripting in Imagemagick.

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Re: Motion Blur removal

Post by fmw42 » 2016-11-08T22:45:07-07:00

By the way, I believe Photoshop has some method of deblurring motion blur. But I have not tried to use it nor do they give any description of the algorithm that I have found. They seem to be able to estimate the motion blur by locating some point object and computing the psf from that minute image.

Here is a reference to work at Microsoft requiring two images.

http://research.microsoft.com/en-us/um/ ... RAPH07.pdf

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fmw42
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Re: Motion Blur removal

Post by fmw42 » 2016-11-08T23:57:32-07:00

You might also want to look at blind deconvolution such as at http://www.quarktet.com/joom/index.php/seddara

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Re: Motion Blur removal

Post by pdaraja » 2016-11-09T00:04:44-07:00

https://drive.google.com/file/d/0B6Eilz ... NBUk0/view

can i follow this method(---->above link)..will it work?

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Re: Motion Blur removal

Post by pdaraja » 2016-11-09T00:07:14-07:00

sorry try this link..
https://drive.google.com/file/d/0B6Eilz ... NBUk0/view
can i follow this method(---->above link)..will it work?

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Re: Motion Blur removal

Post by fmw42 » 2016-11-09T01:47:03-07:00

I cannot say. I have never used that method.

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Re: Motion Blur removal

Post by pdaraja » 2016-11-10T00:13:58-07:00

than you so much,
I have found the another method to restore the non uniform motion blur, but i am struggling to understand that.
Can you please explain me with your exposure?

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Re: Motion Blur removal

Post by fmw42 » 2016-11-10T01:30:10-07:00

I am not sure what you are asking? Can you point me to the reference to the non-uniform motion blur restoration? If something else, then please explain further what you need help to understand.

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Re: Motion Blur removal

Post by pdaraja » 2016-11-10T21:40:51-07:00

sorry i forgot to attach the link....
http://dx.doi.org.sci-hub.cc/10.1016/j. ... 013.05.001#
this is another method....they are telling total variation,shock filter,and salient structure. please give me the explanation on that. i will be ready for skype call also.

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Re: Motion Blur removal

Post by fmw42 » 2016-11-10T22:52:16-07:00

That reference looks like some good work. But I have not kept up with the literature to be able to understand fully what they are doing. Unfortunately, I do not have the time to dig into it and all the pertinent references to get up to speed.

Furthermore, even if I understood, I would not be able to script it with Imagemagick. Some one would have to write code.

Perhaps you can contact the authors and get some code from them.

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Re: Motion Blur removal

Post by pdaraja » 2016-11-10T22:56:57-07:00

i need some technical explanation of that work. can you please explain the work flow of that paper. then only i can start up the coding part...i will be ready to connect with you in personal-chat. please let me know when your are free.

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