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Re: How to add several *.fit files (matrices) into one output *.fit file? [message #63409 is a reply to message #63325]

Thu, 06 November 2008 09:53

Christopher Thom
Messages: 66
Registered: October 2006

Member

Quoth Wox:

> On Thu, 6 Nov 2008 09:14:30 -0800 (PST), Griffons
> <griffons76@gmail.com> wrote:
>
>> I downloaded readfits, writefits and the other files required.
>> I am not sure what to do next. I compiled and ran readfits and
>> writefits, but then what to do?
>
> files=['test1.fits','test2.fits',...] ; use e.g. file_search for this
> sum = READFITS( files[0], /NOSCALE)
> for i=1,n_elements(files)-1 do $
> sum += READFITS( files[i], /NOSCALE)
> writefits, 'sum_filename', sum
>
> Both readfits and writefits depend on some other procedures from the
> ASTRO library. Make sure you compiled them too.

And a minor point to add...be clear that you really want to specify the
/NOSCALE option. If the fits images have BSCALE and BZERO set in the
header, then you may want them scaled appropriately before summing...

cheers
chris

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[Message index]

		How to add several .fit files (matrices) into one output .fit file? By: Griffons on Thu, 06 November 2008 07:20
		Re: How to add several .fit files (matrices) into one output .fit file? By: R.G. Stockwell on Thu, 06 November 2008 13:40
		Re: How to add several .fit files (matrices) into one output .fit file? By: R.Bauer on Fri, 07 November 2008 05:44
		Re: How to add several .fit files (matrices) into one output .fit file? By: R.G. Stockwell on Thu, 06 November 2008 11:50
		Re: How to add several .fit files (matrices) into one output .fit file? By: Christopher Thom on Thu, 06 November 2008 09:53

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		How to add several .fit files (matrices) into one output .fit file? By: Griffons on Thu, 06 November 2008 07:20
		Re: How to add several .fit files (matrices) into one output .fit file? By: R.G. Stockwell on Thu, 06 November 2008 13:40
		Re: How to add several .fit files (matrices) into one output .fit file? By: R.Bauer on Fri, 07 November 2008 05:44
		Re: How to add several .fit files (matrices) into one output .fit file? By: R.G. Stockwell on Thu, 06 November 2008 11:50
		Re: How to add several .fit files (matrices) into one output .fit file? By: Christopher Thom on Thu, 06 November 2008 09:53