[GRASSLIST:7563] Re: color balancing in mosaic

[Feng Tan]

Hi, Jonathan,

Thank you very much for your reply!! Yes, I only use the mosaiced images for 
"good looking" not for classification purpose. (I know it takes raw image for 
classification, so we don't change their spectral information, thanks for 
remind me this!). I believe you have ideas how to color balancing for my 
mosaiced, color composited landsat images for viewing.

Have a nice weekend!!   

Feng





On Friday 15 July 2005 14:35, you wrote:


> 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