[GRASS-user] Accentuating/adding topography to a raster image?

[Jonathan Greenberg]

We're trying to add in a bit of topographic shading/illumination into an
image, and I was hoping to get some feedback on what algorithms work the
best?  I tried a hillshade approach in ENVI, was pretty unimpressed with it.
Any suggestions for a GRASS approach?  Run r.sun and do some sort of pixel
weighting?

--j

--

Jonathan A. Greenberg, PhD
NASA Postdoctoral Researcher
NASA Ames Research Center
MS 242-4
Moffett Field, CA 94035-1000
Phone: 415-794-5043
AIM: jgrn3007
MSN: jgrn3007 at hotmail.com