On Tue, 11 Sep 2007 19:07:31 -0700, "Somebody" <nospam@[EMAIL PROTECTED]
> wrote:
>They could do some really good menu
>interfaces, trully powerful black and white conversion instead of just
>desaturating the color image and more.
You must be using some older cameras or something. One that I tested for
this
doesn't just desaturate the image for B&W modes. Comparing two images
taken of
the same color chart, one taken in color and another in B&W mode, then
using a
channel mixer in an editor to make the color image's color squares match
the
gray levels in the B&W image's respective gray squares. It came out to be
the
same pro****tions as if seen by the eye or if doing B&W darkroom work. From
memory, the channels in the color photo came out to be something like 21%
red,
64% green, and 15% blue to match the same gray levels in the B&W image. A
simple
desaturation wouldn't cause that. That was the first thing I tried in the
editor
with the color photo, just desaturating it, the gray levels between the
two were
all way off.
It was one of the Canon PowerShots that I tested for this. I was curious
to see
how they were doing it.
|
