Hi Steve,
I have one solution with gdal that I showed in some context that I can't
remember now. It changes palette images. It does a simple reclass of
the color values with gdal_calc and some glue with awk and sed.
https://gist.github.com/LarsSchy/c1be96fa03f7dc11df4247be033e2705
Have fun / Lars Schylberg
Den 2021-09-16 kl. 18:46, skrev Steve Lime:
Hi all: I think this is possible. What's the easiest/best way to
recolor a raster image, so for example, turning all pixels of 255 0 0
to 0 0 255? There are only 6 colors in the input image I need to deal
with.
--Steve
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