How to extract palette indices + colours from ilbm graphics file?

[paul_nicholls]

Hey all,
I found an Amiga .ilbm (Delux Paint?) file here that uses colour cycling:
http://www.randelshofer.ch/animations/anims/robert_j_mical/boing3.ilbm.html

I want to extract the palette indices + colours from the graphics file so I can do a similar thing in a little demo I am making for a Chip16 emulator...

Anyone know how I can do this?

After I get the palette indices from the image I am going to reduce them down to 4-Bit colours, but first I need the values from the image :)

cheers,
Paul

[SilverWarior]

After some serching I found theese articles wich might help you a bit.
http://en.wikipedia.org/wiki/ILBM
http://content.gpwiki.org/index.php/ILBM
http://home.comcast.net/~erniew/lwsdk/docs/filefmts/ilbm.html

[paul_nicholls]

Thanks SilverWarior :)
I have managed to find an image program (XnView (http://www.xnview.com/en/index.html)) that has allowed me to open the ilbm file, and I can convert it to a 256 colour BMP, and also see its palette :)
I will now look at what colour ranges the CRNG bits use in the image...

[SilverWarior]

Are you sure that ilbm image you have have 256 color palete or even les. Acording to what I read ilbm graphics can also have true color (24bit) color palete. So it is posible that XnView hasn't converted your graphics exactly as it should.

[paul_nicholls]

Sorry, I wasn't quite clear about that haha It is a 32 colour ilbm image, but when I convert it to a bmp, then it is a 256 colour image...but I am still only interested in the first 32 colours...the rest of the palette seems to be filled with black :)

EDIT: It is an Amiga file too, so not sure if it would come in 24bit colour?