Re: A92: compression
[Prev][Next][Index][Thread]
Re: A92: compression
At 15:17 04/04/99 -0400, you wrote:
>
>The Data Compression Book contains statistics for all the methods which it
>describes. By far the best compression method as far as compression goes is
>a higher order adaptive arithmetic compressor. Unfortunately these are
>incredibly slow, so they aren't used for anything. It can take 15-20 times
>as long to compress or decompress something with higher order adaptive
>arithmetic compression as it can for the LZ* methods or huffman. LZ* and
>huffman take about the same amount of time. LZ* methods compress better
than
>huffman generally. I'll probably be doing some work with LZ* after I do
work
>with huffman for my computer programming projects at school. I may
implement
>something for the 92/92+/89, I dunno. We'll see.
>
LZW can be really slower than huffman. Currently my routines
on the TI92 are very very slow, because of the dictionnary.
that's why i plan to program a "hashing table" (can we say that in english
?it is "Table de
haschage" in french)
Benoit SCHERRER
Follow-Ups:
References: