[gdal-dev] grey output from gdal2tiles.py

[Wendell Turner]

I used gdal2tiles.py to convert a GeoTIFF file into a
directory for use with OpenLayers.  The tiles are generated,
and can be viewed with OpenLayers, but the tiles are all
gray.  There appears to be some structure to the images, but
they do not have any colors, and little detail.

The input file looks fine in gtviewer.

Is the input to gdal2tiles supposed to be in some other
format?  It uses gdal.Open, which I suppose can open any
type of file format.  Any suggestions?

Thanks,

Wendell