Hi Matthew,
It would be useful to see what your source image looks like. I have an
image that covers essentially global extents, and which is in EPSG:4326. I
did a reprojection using gdalwarp in GDAL 1.6.1:
$ gdalwarp -s_srs EPSG:4326 -t_srs +proj=moll +lon_0=0 infile outfile
The results that
I have just started trying to use gdalwarp and gdal_translate to
reproject some world maps. I have managed to achieve some limited
success with some projections, but I seem to get strange results with my
images, especially with Mollweide. The Molleweide gives a horizontally
flipped image,