Hello Roboticus,

I just realized that we had the same ideas (me just later ;).

One difference is that you want to encode each of the 9 groups individually with 6 bits each => 6*9=54 bits per line while I'm encoding a whole line as a polynom

Sum($g($i) * 50**$i) with $i=0 .. 8

resulting in the need of 51 bits per line.

But I don't understand why you say

>  That's not quite enough to crunch out half the space

The old encoding needs per line in average >14 bytes plus newline.

That's > 15 * 8 = 120 bits

So your 54 bits need already less than half the space!

What am I missing?

Cheers Rolf
(addicted to the Perl Programming Language :)
Wikisyntax for the Monastery FootballPerl is like chess, only without the dice

In reply to Re^2: Data compression by 50% + : is it possible? by LanX
in thread Data compression by 50% + : is it possible? by baxy77bax

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