[svlug] Monitor calibration, photo processing

[John Conover]

John Conover writes:
> Larry Colen writes:
> > Last night I was sorting more photos from this weekend, I used Monica
> > to set the gamma, which gives me a gamma of 0.46 - 0.50 (or about
> > 1/2.2). However, anything but photographs looks crappy, watching
> > MPEGs, they look way too dark. Even the text in my termial windows
> > looks a bit weird.
> >
> 
> Some LCDs are set to about 1.1 out of the box-which is good for HDTV
> and DVDs. Some have settings in the monitor setup menu to customize
> the monitor itself to a specific gamma without using xgamma. Others
> are detected by X-Windows and gamma set appropriately in the drivers.
> Yet others, (particularly in TV sets,) set the gamma dynamically,
> depending on picture intensity data.

BTW, (sorry for replying to myself):

    http://www.xbitlabs.com/articles/other/display/lcd-guide.html

is a good set of web pages on LCD display issues, (pages 12-14
concern gamma, 5500K, etc.)

	 John

BTW, a lot of LCD displays, (TV and computer,) dither pixels,
dynamically, for aliasing considerations, (i.e., a plaid area will
have "snakes" running though it if they don't,) and the dithering will
render incorrect gamma settings on the "standard" gamma charts.

-- 

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