MPEG
Chris:
No, a DCT is only useful when you can't do a brute force. Since there are so
many possible combinations of colors in 24 bit, a DCT is used to decide what is
the most probable non-noticable data that can be discarded. Since Smacker is
8-bit based, there are a relatively small number of color combinations.
Smacker tries ALL combinations to get the closest possible color match. So, we
get better quality than an approximation like a DCT function provides.
Scope out our press release here in the libs for features.
->Jeff