[AstroPy] [ANN] ccdproc 0.3.3: CCD data reduction

[Steve Crawford]

To use the scaling property, you would pass a list of exposure times to use for the scaling. So if you have two images (x,y) with exposure times of (10, 20), then the following should work in the most recent release of ccdproc: 

c = Combiner((x,y)) 
c.scaling = (10,20) 
z = c.average_combine() 

For more information, take a look at: 
http://ccdproc.readthedocs.org/en/latest/ccdproc/image_combination.html 

In the next major release that is not quite ready, we will have a convenience function for combining data as well as a class (ImageCollections) for easily handling image header information. You may want to try out that version if you are interested in some of the more advanced feature. Please let us know if you any questions either here or on the github repo. 

Thanks for your interest! 


----- Original Message -----

From: "R Schumacher" <rays at blue-cove.com> 
To: "Astronomical Python mailing list" <astropy at scipy.org> 
Sent: Monday, October 26, 2015 2:11:40 AM 
Subject: Re: [AstroPy] [ANN] ccdproc 0.3.3: CCD data reduction 

Nice. 
How would one use masked combiner.scaling() with exposure time as the scaler, say from FITS or EXIF/IPTC data? 

- Ray Schumacher 

At 08:21 PM 10/24/2015, you wrote: 


Content-Language: en-US 
Content-Type: multipart/alternative; 
boundary="_000_14D2DF4B715A42DE8AE0E788CE924681mnstateedu_" 

Dear colleagues, 

We are pleased to announce the release of ccdproc v0.3.3. This patch release fixes a couple of minor bugs and adds compatibility with astropy 1.0.5 

Ccdproc is is an affiliated package for the AstroPy package for basic data reductions of CCD images. 

More Information and repository 
https://github.com/astropy/ccdproc 

Documentation 
http://ccdproc.readthedocs.org/en/latest/ 

Installation 
http://ccdproc.readthedocs.org/en/latest/ccdproc/install.html 

Feedback, contributions, and comments are welcome. We would especially be interested in 
contributions of examples of using ccdproc and comparisons to other reduction methods. 

Special thanks to new contributor William Schoenell (@ wschoenell) for his work on this release! 

Cheers, 

Steve Crawford and Matt Craig 
Matt Craig 

PS There was no 0.3.2 release of ccdproc because of an error made in packaging that release. 

schedule: http://physics.mnstate.edu/craig 
—â— 

Professor 
Department of Physics and Astronomy 
Minnesota State University Moorhead 
1104 7th Ave S, Moorhead MN 56563 

phone: (218) 477-2439 
fax: (218) 477-2290 

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