[GRASSLIST:3611] Re: texture analysis, r.texture

[Andrew]

I think you have to create an imagery group with the rgb files (after 
they have been created by the impor)t as members, then run i.composite.

Eric Pante wrote:

> Dear listers,
>
> I am a GRASS (and Linux) beginner trying to run a texture analysis on 
> 640*480 TIFF images taken from a Hi-8 camera. I imported my pictures 
> using "r.in.tiff", which created 3 files (RGB).  When I run my texture 
> analysis using "i.texture" I actually get results ; on the other hand, 
> when I want to get a graphical representation of texture features 
> using "r.texture", I get empty files. When I try to display them, I 
> get a nice pink screen ...
> does any one have any idea why i get results with i.texture, and not 
> with r.texture, even though r.texture uses the algorythm of i.texture 
> ? does this have anything to do with the fact that I run my 
> calculations on RGB files, and in that case, is there a way to get one 
> unique GRASS raster file from my TIFF (I unsuccessfully tried 
> "r.in.gdal")?
>
> Thank you very much,
> Eric Pante, ericpante at hotmail.com
>
>