[GRASSLIST:9272] Equalizing contrast between geotiffs

[Craig Aumann]

Some weeks ago, I posted a question asking how to equalize contrasts
between geotiffs.    

One open-source piece of software that can do this is OSSIM:

http://www.ossim.org/

There are no RPMs for the most recent version.  But once it is compiled
yada yada, it is truly AWESOME!  I've created 5+ gig geotiffs and the
program even allows one to view such large files quickly and easily by
creating various support files.  

The program is under active development.

Cheers!
Craig



-------------------
I have a bunch of air-photos (geotiffs) which overlap slightly.  Is
there an easy way to equalize the contrasts between all the air-photos?

For example, how would one do this for two air-photos? What if its a
block of 4??

Each individual air-photo is quite large, so computational burden is a
concern. 

I'm also quite willing to consider non-GRASS options. I'm not that up on
image processing issues.  

Thanks!
Craig

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