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[REBOL] Re: compression

From: greggirwin:starband at: 12-Sep-2001 13:50

Hi Hallvard, << I believe there are some restrictions for use of the LZW algorithm, and I think that's why the PNG format was developed. So it might just be that making an LZW compression function simply isn't legal without purchasing some sort of a licence... I don't know. If I should decide to convert my old java classes into some stammering rebol code, I'll check it out before posting anything to the rebol community. Or does anyone know (for sure) something contrary? >> I don't know if Unisys is still pursuing things actively or not. If you don't need GIF compatibility, I'd just go with PNG. If you just published an implementation of LZW in REBOL "for academic purposes", you shouldn't get in any trouble. The catch would come when you use it in an application. That said, there are a number of commercial GIF tools out there (Alchemy Mindworks has a couple I use), so maybe those guys could give you some advice if necessary. --Gregg