Re: [APML] Image Processing Question: Gaussian Blur vs Unsharp Masking

[steve banbury <banburys@sonic.net>]

I'll toss in an example of  noise reduction achieved using  SGBNR in 
PixInsightLE.
Carlos was very patient in working with me in using their software, and 
I was quite impressed
with the result. The raw FITS files are in that directory if someone 
else would like to play with
them.  I apologize for not having Carlos' processing file in the 
directory, but will put it there
tonight if there's interest.   I've gotten a number of comments that the 
color balance should be
shifted away from the orange, but haven't gotten around to tweaking it yet.

A raw and post processed example are available at:
http://www.sonic.net/~banburys/PixInsightLE_Experiment/DW_Process_Compare.htm

Note, it takes a while for the images to load before the mouseover will 
work.
Finally--the image is from my beginning steps into the Dark Side--but 
the processing
benefits are independent of what net was used to catch the photons.

:^) Steve


Carlos Milovic F. wrote:

>>Does anyone have any solutions for this problem, or
>>should I just settle for the best balance between
>>grain and blur? Thanks for your insights,
>>    
>>
>
>Yes, there a lot of solutions for your problem, and
>the best I can suggest to you is SGBNR. Roughly, it
>blurs only where are no edges in your images, and then
>bluring only the noise, while keeping the sharp
>appearence of the image.
>Go to http://pleiades-astrophoto.com and download
>PixInsightLE. Read carefully all the documentation and
>play with the paramethers.
>
>  
>
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