sixel_decode

This utility dumps the palette of a file that is sixel encoded and outputs an RGB bitmap with no header.

If output specified, you'll get width and height on stdout separated by x, like 32x32.

If you have ImageMagick or GraphicsMagick, you could get a PNG out like this:

convert -size 971x747 -depth 8 /tmp/abbr2.rgb /tmp/abbr2.png

Compiling

Run make. Obviously you need libsixel.