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@hotmail.com
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@hotmail.com