| Re: combine histograms [message #56932] |
Wed, 28 November 2007 13:15  |
David Fanning
Messages: 11724
Registered: August 2001
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Senior Member |
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thomas.jagdhuber writes:
> I have several subscenes of an image just for processing reasons. So I
> made a histogram for each subscene. Now I want to combine this
> histograms to a final histogram over the whole scene. Is there a smart
> way to do this?
Assuming your image was BYTE data, or that you were
careful when you created your histograms and you
set the BINSIZE, MIN, and MAX to the same values
for all of your sub-images, I imagine you could
just add the darn things together. :-)
Cheers,
David
--
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming: http://www.dfanning.com/
Sepore ma de ni thui. ("Perhaps thou speakest truth.")
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| Re: combine histograms [message #57030 is a reply to message #56932] |
Wed, 28 November 2007 13:49  |
thomas.jagdhuber@dlr.
Messages: 19
Registered: February 2007
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Junior Member |
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On Nov 28, 10:15 pm, David Fanning <n...@dfanning.com> wrote:
> thomas.jagdhuber writes:
>> I have several subscenes of an image just for processing reasons. So I
>> made a histogram for each subscene. Now I want to combine this
>> histograms to a final histogram over the whole scene. Is there a smart
>> way to do this?
>
> Assuming your image was BYTE data, or that you were
> careful when you created your histograms and you
> set the BINSIZE, MIN, and MAX to the same values
> for all of your sub-images, I imagine you could
> just add the darn things together. :-)
>
> Cheers,
>
> David
> --
> David Fanning, Ph.D.
> Fanning Software Consulting, Inc.
> Coyote's Guide to IDL Programming:http://www.dfanning.com/
> Sepore ma de ni thui. ("Perhaps thou speakest truth.")
I have floats. Does this matter? And I set the min, max and binsize on
the same values in all subscenes.
thanks,
thomas
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