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Subject:

Re: off topic: Adobe demos deblur of photos...

From:

Ethan Merritt <[log in to unmask]>

Reply-To:

Ethan Merritt <[log in to unmask]>

Date:

Tue, 11 Oct 2011 11:38:55 -0700

Content-Type:

Text/Plain

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On Tuesday, October 11, 2011 11:21:41 am Francis E Reyes wrote:
> http://hoowstuffworks.blogspot.com/2011/10/adobe-demos-amazing-unblur-feature.html
> 
> Though I can't really see the image myself... the gasp of the audience is telling
> 
> 
> With respect to existing density modification programs, I wonder if such technology 
> (whatever it is) can ever clear up my messy density maps.

The technology is directly parallel to TLSMD analysis.

It creates a model that includes a prediction of the blurring in the
original image, or in our case the blurring in the map generated by
Fourier transform of the original data.  The difference is that in the
case of a photograph one is interested in the altered image rather than
the underlying model.  In the case of a crystal structure one is interested
in the underlying model rather than the electron density map per se.

I have for a long time used the "motion-blurred photograph" parallel
to explain how TLSMD works.  See for example page 3 of
http://www.ccp4.ac.uk/schools/APS-2009/tutorials/tls/Merritt30th.pdf

	Ethan

-- 
Ethan A Merritt
Biomolecular Structure Center,  K-428 Health Sciences Bldg
University of Washington, Seattle 98195-7742

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