|
|
Dithering is used by imaging software to make a 256-color image look
like it has more color depth than it actually has. In some images, the
256-color image can look exactly the same as a 24-bit original.
It accomplishes this by determining an optimal palette of 256 colors,
then using a "fuzz" algorithm to make 24-bit color values pick a nearby
palette entry.
The effect can be seen with an up-close inspection, but is invisible to
the casual viewer.
So, my question is this: has anyone done or seen any research on
dithering a 48-bit image to 24-bit?
My own efforts haven't been successful, but I seriously want to pursue
this because I think it could substantially improve the perceived
quality of 24-bit images, particularly those with a lot of gray shadowy
areas.
The ultimate effect is that a 24-bit image could look nearly as good as
a 48-bit one, and most importantly, the improvement would be visible on
commodity hardware.
-Ryan
Post a reply to this message
|
|