Re: MMX speedup for Floyd Steinberg error diffusion

On May 10, 10:48 pm, Phil Carmody <thefatphil_demun...@[EMAIL PROTECTED]
>
wrote:
>
> You might be able to just do some kind of octree algorithm.
> You could even hard-code the partitions.
>
> (Octree's also possible in 256-colours too, of course. You can
> even create a slightly optimised palate by using 2 p***** and
> crudely bin-counting on the 3 axes.)
>

I implemented 4 different quantizers, Octree, Median cut, Wu and
NeQuant ( the last 2 adapted from the FreeImage library ) and it seems
that Wu quantization gives the best results, followed by octrees, The
other 2 never quite get as good results as far as I could see.

What do you mean by "bin-counting on the 3 axes" ?

Regards
Vivek