[3DEM] Interpolation of scanned images

Pawel A Penczek Pawel.A.Penczek at uth.tmc.edu
Thu Oct 13 11:25:29 PDT 2005


The first one is correct, the second is incorrect.

Regards,
Pawel Penczek.



Kasim Sader wrote:
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> 
> Hi,
> 
> I am trying to reduce the resolution of my scanned images while 
> retaining the maximum signal possible.  Does anyone have advice on which 
> method would be best?  The SPIDER   manual suggests fourier filtration 
> (FQ) followed by decimation (DC- is this the same as a nearest neighbor 
> reduction?).  However, I have read a paper that used 2-fold binning of 
> the scanned data- is the decimation with summation of neighbouring 
> pixels (DC S) operation the same as binning?  How do the two methods of 
> reduction compare?
> 
> Thanks,
> 
> Kasim Sader
> 
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