[GRASSLIST:7562] Re: color balancing in mosaic

[Jonathan Greenberg]

Feng:

Are you going to be performing classification on these mosaicked images, or
are you just making a graphic for a presentation?  There's an important
distinction between making a "nice picture" and doing correct image-to-image
registration for mapping purposes, which is why I ask...

--j


On 7/15/05 6:42 AM, "Feng Tan" <feng at lynxseismicdata.com> wrote:

> Hi, There,
> 
> I have problem to do color balancing for a mosaiced composited landsat TM
> images. There are 4 images, they have difference in colors. I used r.blend, 3
> of the image colorr are close now. But the 4th image have a very big
> difference in color tone with other 3, it seems r.blend does not work for it.
> Do you have a better way for this? I am running GRASS6.0 now. Please help!!
> 
> Thanks!!
> 
> Feng Tan
> 


-- 
Jonathan A. Greenberg, PhD
NRC Research Associate
NASA Ames Research Center
MS 242-4
Moffett Field, CA 94035-1000
650-604-5896
AIM: jgrn307
MSN: jgrn307 at hotmail.com