Re: Why does 16 bpp look the same as 24 bpp?
> On Mon, Dec 21, 1998 at 02:34:31AM +0800, k e c h i e wrote:
> > On Sun, 20 Dec 1998, Rick Macdonald wrote:
> >
> > >
> > > I can't tell the difference between 16bpp and 24bpp 24 colour JPEG
> > > files, viewed with xv.
> >
> > Try doin' some gradients in GIMP.
>
> Or some povray pictures. You can detect distinct stripes in 16bpp but none
> in 24bpp. Everything above 24bpp (32bpp) would be insane. It's nice there is
> at least one thing that doesn't need to be improved in the computer world :)
Simple dithering can usually fix gradients in 16bpp. A gradient
is visible due to "edge enhancement" in our eyes. Dithering
with 16bpp is usually invisible.
not all programs do this though.
Helge Hafting
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