Michel Samson <[EMAIL PROTECTED]> wrote:

AJ> The numbers are 0, 33, 66, 99, CC and FF...

> Thanks a lot for these clear explanations.  Euh...  But i would
> bet i have seen more than six solid shades of grey in `GrafX
v2.00',
> or it's probably just a combination of greys with very slightly
> tainted greys...

I don't know if this helps, but try a 16-bit hex value made up
of ONLY those digits.  (e.g. - "33CC", "FF00", "CC99", etc.)
Grayscale (on a 256-color display) includes only 64 shades.
On a so-called "paperwhite" display (B/W VGA monitor), only the
GREEN components of R-G-B in a color picture will display.

This is why "Bright Red" (FFFF) is very dark on such a monitor.
I once wrote a little conversion program (long lost during a
HD crash) that moved the brightest component's value (R, G, or
B) into the green register making color photos on a B/W monitor
look much more normal - but boy, did the resulting picture look
terrible in color!

- John T.

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