[Openicc] Questions about color pickers and graphics libraries under LINUX

[Bob Friesenhahn]

On Tue, 12 Feb 2008, Chris Murphy wrote:
> better. HDR displays are appearing now. The adoption rate may be slow
> at first, but when people start seeing HDR capture on these displays,
> it's really stunning. Scene-referred captures on a scene-referred
> display!

To me, HDR means that the device/format is able to 
capture/display/store values which are much whiter than white and 
blacker than black.  In other words, the range is broader than the 
human eye can handle at once.  True HDR formats can store brightness 
levels so bright that if you were to see them, you would immediately 
die.  The primary value of HDR is that it preserves extreme values so 
that the image may be worked with at different viewing levels without 
permanent loss (e.g. no clipping).  Greg Ward has a nice paper on HDR 
storage at "http://www.anyhere.com/gward/hdrenc/hdr_encodings.html". 
Is your understanding of HDR different than this?

Perhaps by HDR display you are referring to a wide contrast ratio (not 
quite the same)?

Bob
=== 
Bob Friesenhahn
bfriesen at simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer,    http://www.GraphicsMagick.org/