pct2rgb - Man Page

Convert an 8bit paletted image to 24bit RGB.


pct2rgb.py [-of format] [-b band] [-rgba] [-pct palette_file] source_file dest_file


This utility will convert a pseudo-color band on the input file into an output RGB file of the desired format.

-of <format>

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.

-b <band>

Band to convert to RGB, defaults to 1.


Generate a RGBA file (instead of a RGB file by default).

-pct <palette_file>

Extract the color table from <palette_file> instead of getting it from <source_file>. Can be used to have a consistent color table for multiple files. 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: pct2rgb.py is a Python script, and will only work if GDAL was built with Python support.

The '-expand rgb|rgba' option of gdal_translate obsoletes that utility.


Frank Warmerdam <warmerdam@pobox.com>, Silke Reimer <silke@intevation.de>


Nov 06, 2022 GDAL