[Gdal-dev] Gdalwarp color corruption

[Frank Warmerdam]

John Mitchell wrote:
> Does cubic spline resampling give the best quality?  I know that it is 
> the slowest.

John,

Quality is in the eye of the beholder.  Generally speaking cubic convolution
will produce the most attractive results.  Note that there are two cubic
convolution kernels (-rc and -rcs).  The -rc is what I consider the
"traditional" implementation meaning it is what I used at PCI.  -rcs is
a variation Andrey Kiselev implemented, and which he considers better for at
least some purposes.  You should try both (and -rb) and see which you prefer.

Best regards,
-- 
---------------------------------------+--------------------------------------
I set the clouds in motion - turn up   | Frank Warmerdam, warmerdam at pobox.com
light and sound - activate the windows | http://pobox.com/~warmerdam
and watch the world go round - Rush    | President OSGeo, http://osgeo.org