Can this be done on the command line?
I'm working with the Mars MOLA DEM GeoTIFF. Unfortunately, my framework can't deal with signed values, so it gets really confused when it looks at the data. I want to translate it to unsigned, and I want to adjust all the nodata values to 0xFFFFU.
The data set has values ranging from -8,500 to 21,226, and the nodata value is -32,768 (0x8000). I'd like to add 8500 to all the pixel values, change any nodata(0x8000) pixels to the new nodata value of (0xFFFF), and set the nodata value tag to 0xFFFF (65535).
I can't figure out how to get gdal to change any nodata values in the input dataset.