[GRASSLIST:1028] patched rasters

[Stuart Edwards]

Hi

Curious problem with r.patch.  I'm patching two topo maps and which  
ever one is identified second will appear blurred on the new  
composite image (see patch1). However, if I display them  
independently on the same monitor, both maps are just fine (see  
display1).  It looks like a resolution problem, but the resolution is  
constant (10m) in the regions used for the original and patched maps.

Maps were purchased as scanned tif images and georeferenced  using  
the lat/long coordinates at the corners (converted to UTM).  The same  
coordinates were then used to create a vector 'frame' that was  
converted to a mask in order to trim off the edges.  Any help with  
cleaning up the patched map would be appreciated.

Stuart

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