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Re: Adding/Subtracting/Multiplying images together [message #92834 is a reply to message #92829]

Wed, 09 March 2016 06:03

wlandsman
Messages: 743
Registered: June 2000

Senior Member

On Tuesday, March 8, 2016 at 9:27:33 PM UTC-5, soniya...@gmail.com wrote:

> As a follow up to this question how to add if the wcs of the images dont match ? Then I guess
> image_added = image_1 + image_2 this wouldn't work.. Is that right?

One thing to try is the procedure hastrom.pro
http://idlastro.gsfc.nasa.gov/ftp/pro/astrom/hastrom.pro

Given the image array and FITS header of the first image, and the FITS header of the second image, this procedure will warp the first image until its astrometry matches that of the second image. You can then directly add the images together.

--Wayne

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[Message index]

		Adding/Subtracting/Multiplying images together By: Barbara on Tue, 21 July 2009 13:37
		Re: Adding/Subtracting/Multiplying images together By: soniya.iiser on Tue, 08 March 2016 18:27
		Re: Adding/Subtracting/Multiplying images together By: wlandsman on Wed, 09 March 2016 06:03
		Re: Adding/Subtracting/Multiplying images together By: Russell[1] on Wed, 09 March 2016 06:04
		Re: Adding/Subtracting/Multiplying images together By: wlandsman on Wed, 09 March 2016 07:04

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