Attach a color table from one file to another file.
gdalattachpct.py [-of format] palette_file source_file dest_file
This utility will attach a color table file from an input raster file or a color table file to another raster.
Select the output format. Starting with GDAL 2.3, if not specified, the format is guessed from the extension (previously was GTiff). Use the short format name.
Extract the color table from <palette_file>. The<palette_file> must be either a raster file in a GDAL supported format with a palette or a color file in a supported format (txt, qml, qlr).
The input file.
The output RGB file that will be created.
NOTE: gdalattachpct.py is a Python script, and will only work if GDAL was built with Python support.