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Re: Getting ROI data from an image [message #77861 is a reply to message #77860]

Fri, 30 September 2011 12:19

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

Brian J. Daniel writes:

> Look at using the HISTOGRAM function on the result variable with
> REVERSE_INDICES keyword.
>
> http://www.idlcoyote.com/tips/histogram_tutorial.html

Using the Reverse_Indices keyword can often seem
complicated. You can use the ReverseIndices function
from the Coyote Library to return the indices to you
without having to learn the complicated vector in a
vector syntax:

http://www.idlcoyote.com/programs/reverseindices.pro

Cheers,

David
--
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming: http://www.idlcoyote.com/
Sepore ma de ni thui. ("Perhaps thou speakest truth.")

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[Message index]

		Re: Getting ROI data from an image By: Rebecca on Mon, 03 October 2011 06:15
		Re: Getting ROI data from an image By: David Fanning on Fri, 30 September 2011 14:32
		Re: Getting ROI data from an image By: Rebecca on Fri, 30 September 2011 14:16
		Re: Getting ROI data from an image By: David Fanning on Fri, 30 September 2011 13:41
		Re: Getting ROI data from an image By: Rebecca on Fri, 30 September 2011 12:41
		Re: Getting ROI data from an image By: David Fanning on Fri, 30 September 2011 12:19
		Re: Getting ROI data from an image By: Brian Daniel on Fri, 30 September 2011 11:42

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