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Re: images taken in different daylight all conatining a color reference [message #67780 is a reply to message #67779] Tue, 01 September 2009 05:18 Go to previous message
Jeremy Bailin is currently offline  Jeremy Bailin
Messages: 618
Registered: April 2008
Senior Member
On Aug 31, 3:12 pm, Thomas Nehls <thomas.ne...@googlemail.com> wrote:
> I have a not so much IDL problem:
> I have taken some pictures, some in the morning, some in evening, some
> in the sun, some in the shade.
> They all contain acolor reference.
> Given that all individual images are homogeneous in light (no dark
> regions, no lighter regions) there must be a possibility to process
> the images in a way, that they all show the same (or nearly the same)
> R,G, and B values for the colors on the color reference, right?
> Can I find models how to treat the colors of the whole image just by
> using the color references?
>
> Thanks for any hint how to start with that problem, I dont find the
> entrance to it... :-(
>
> Tom

You might want to take a look at David's histogram matching discussion
to get some ideas...
http://www.dfanning.com/ip_tips/histomatch.html

-Jeremy.
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