[Openicc] beyond 8-bit precission [was: new version of xcalib]

Glenn Randers-Pehrson <glennrp> glennrp at comcast.net
Wed Mar 9 02:48:04 EST 2005


Bob Friesenhahn wrote:
> 
> On Tue, 8 Mar 2005, Kai-Uwe Behrmann wrote:
> >
> > What is the contrast ratio of film? Are todays LCDs and TV displays
> > really that far from film contrast?
> 
> Using the black/white squares ANSI approach (vs unit on/off) I
> understand that film (the media itself, not printed or projected) has
> a contrast ratio of around 10,000:1 and CRTs/LCDs average about 300:1.
> Really good CRTs can offer 700:1 under carefully controlled
> conditions.
> 
> This means that film contrast ratios are much better than computers
> can currently display.

Samsung claims that their latest plasma display delivers 10,000:1
contrast
ratio.  I don't know if that is believable though, and naturally you'd
need
to drive it with 14-bit samples (maybe less with an appropriate gamma
curve)

http://www.engadget.com/entry/1234000597033162/

Glenn



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