Monitor colors

[Jonathan L Deenik]

Thanks for the reply martijn,

I checked the dat using "r.cats". It appears that all the bands have been 
reduced somehow. In xV, I notice that I can put a check in the box 
labelled "save at normal size". Do I want to do that? Also, when I try to 
save the images in the greyscale mode, I fail as the images appear to be 
saved automatically and unchangeably in the 32 color mode. As far as I 
can tell, it is at this juncture that my problems arise. Why won't xV 
allow me to save to the greyscale mode?

Thanks for your patience!
 Jonathan
On Sun, 7 Aug 1994 martijn at scanner.frw.uva.nl wrote:

> One other reason for Grass images to contain less greyscale values than 
> they should is that they really do. That is, you either never had 256 
> different values in the image or you lost them during import/conversion 
> procedures. The first thing to do is to query your Grass image using 
> "r.cats" to find out if there really are only 31 values left. If this 
> proves true, and you're POSITIVE that the original image contained more 
> different values than that, you must have lost them somewhere. This means 
> you have to check every step along the way. Hopefully you will discover 
> that you inadvertently resampled the image - the `save at original size' 
> checkbox in Xv comes to mind as a plausible cause.
> 
> P. Martijn van Leusen
> Institute of Prehistory, University of Amsterdam   martijn at scanner.frw.uva.nl
> 
>