[svlug] photo post processing

[John Conover]

Larry Colen writes:
> I just found out that I've had my monitors way out of whack from what
> most people use to look at photos. So, things that look perfectly fine
> to me, look very dark and underexposed to most people.
>

Yea, see: http://www.johncon.com/john/gamma/ for a simple methodology
of setting gamma of CRT[1] monitors and camera/monitor/printer system.

Don't forget that you have to set gamma of printers[2], too, and
certain cameras have to have gamma set, also.

        John

[1] Many CRTs come out of the box with a gamma of 2.9, (that's the
European gamma standard,) and others come standard with 2.2, (the US
NTSC standard,) and you are right, Larry, putting xgamma in your
~/.xinitrc, etc., is the way to go. Don't forget that CRT gamma
changes over time as the CRT ages, and should be recalibrated monthly.

[2] PhotoShop has a gamma setting for printing, (you have to know what
the gamma of the paper being used is, too-glossy will be different
than matt,) and Gimp sets the gamma auto'magically by choosing the
paper type. It also depends on the ink; CMYK will be different than
RGB.

-- 

John Conover, conover at rahul.net, http://www.johncon.com/