Command Line Palette Processing?

[slinga]

I'm trying to improve my sprite workflow. I need to the following:

1) Combine all of my sprites
2) Create a single optimized palette of 255 colors
3) Export that palette
4) Apply that palette to each of my sprites

So far I have this (using ImageMagick from the command line)

rm ALL.TGA
convert -append *.TGA  ALL.TGA
convert ALL.TGA -depth 8 -colors 255 ALL2.TGA

The append appends all of my sprites into a single file 24-bit color TGA. The next line creates an indexed (palette) TGA but instead of using 255 colors it uses ~16 or so.

I then need a way to extract the palette from ALL2.TGA and apply it to each of my sprites. Any advice on how to do this? Thanks in advance.

 

[nando]

you can do this with Irfanview. it has command line options, and I think that includes palettes - it's free to use as well.

from i_options.txt:
/import_pal=palfile - import and apply a special palette to the image (PAL format)
/export_pal=palfile - export image palette to file (PAL format)

this is a script I made to open all .png images in a folder, convert them to 8bpp, and then export the .pal file - importing the palette should be similar.

@echo off
"C:\Program Files (x86)\IrfanView\i_view32.exe" /bpp=8 /export_pal="B:\SteamLibrary\steamapps\common\Sonic Mania\Data\Data\Images\TrueEnd.pal" /convert="B:\SteamLibrary\steamapps\common\Sonic Mania\Data\Data\Images\*.tga" /file="B:\SteamLibrary\steamapps\common\Sonic Mania\Data\Data\Images\TrueEnd.png"

 

[slinga]

Thanks for the fast response. I've been using IrfanView via the UI. I'll look into the command line option.

 

[nando]

this file is in the irfanview folder somewhere http://www.softerviews.org/i_options.txt