[futurebasic] Re: [FB] Compressionism

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From: Robert Covington <artlythere@...>
Date: Sun, 7 Jan 2001 18:20:51 -0400
>>Do any of you math wizards or word-bytists know of a simple compression
>>scheme for abbreviating or otherwise representing in less data the values 0
>>to 255?
>>
>>Thank you for any suggestions.
>>
>Robert,
>
>If you're talking even distribution, then I think 8 bits is the least
>you'll get without some pretty extravagant (and possibly lossy) schemes.
>If you can be more explicit about what you're trying to do (e.g. text?),
>there might be some possibilities, probably based on conbinations or
>sequences of values.
>
>You always have the option of "abbreviating" (or approximating) the
>values simply by dropping the least significant bit(s), but then you
>don't really have a range of 0-255.
>
> 0"0
> =J= a  y
>  "

Was hoping to come up with some image compression scheme to save anything I
could on the file size, for my proprietary File type for Compositor.


GIF is lossless isn't it? But limited to 256 colors.

TIFF files sometimes strip the image bytes into 3 channels, for the R G and
B bytes. I was thinking about doing the same.

So a layered GIF 8 bit compression thing would work, just apply on all
three channels, I was thinking.

Maybe.

Re-inventing a re-invented wheel possibly.

Robert