[GRASS5] r.in.gdal and colors
neteler at itc.it
Thu Feb 6 03:32:31 EST 2003
On Wed, Feb 05, 2003 at 11:20:46PM -0500, Russell Nelson wrote:
> Frank Warmerdam writes:
> > Do you or others who get the Zen of GRASS better than I think
> > r.in.gdal ought to be writing a greyscale colortable for imported
> > files without a colormap?
> Yes. The three rasters are not independent images, but are instead
> the red, green, and blue planes of the imported image. For that
> reason, they should have greyscale colortables, and should be named
> ".r", ".g", and ".b" instead of .1, .2, and .3.
Also I vote for this suggestion.
> > Should it only do this for multiband
> > images? Only for 8bit images?
> If it's an indexed image and comes with a colortable, then by all
> means set the colortable. Otherwise, if it's an RGB image, then the
> resultant three rasters should be interpreted not as colors, but as
> intensities. And that means greyscale.
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