How to do statistics of a region in many files

StefanD wrote on Aug 20, 2008

Hello all,

I am just starting using IRAF.

Right now I am wanting to check the sky level of a large set of images.

Is there a way to:
select a region, and get the stats for that region for all the images
(some sort of batch)

or

create a subimage (as a new fits image) from a specified region for each image (in a batch mode).
Then it would be easy to rum imstat on those.

Stefan D

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Mike Fitzpatrick wrote on Aug 20, 2008

If it is the same region for all the images, then you can do it directly using an image section, e.g.

cl> imstat *.fits[100:200,300:400]

and the specified section will be used for each image. Is this what you needed?

Cheers,
-Mike

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StefanD wrote on Aug 20, 2008

Thanks Mike,

that worked.
I missed that option.

Stefan D

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Last post on Aug 20, 2008