[gdal-dev] GDALWarp API and paletted images

[Thomas Sevaldrud]

Hi,

I'm using the GDALWarp api from C++ to reproject and cut various input
images. In general this works very well for my purposes, except that for
paletted images I have to use NearestNeighbour resampling,

I would like to use Bilinear or higher order resampling, and wonder if
there is any way to expand a paletted image to true RGB during the warp
process, so I can use these resampling methods.

Alternatively, is there a way to do this conversion (from code) before the
warp without having to run through the entire image in memory?

- Thomas
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