[Tig] Is there anybody out there

[Bob Friesenhahn]

On Thu, 3 Aug 2006, Peter Swinson wrote:
>
> I always question the term dynamic range with film vs video.
> Consider this. Dynamic range is quoted as max vs min density, light level,
> whatever. It could be argued that a 1 bit system has extreme dynamic range
> 0=the sun, 1=the deepest coal mine. Even so I believe the non linear
> portion of the film range is significant, especially when manipulating
> images in a grading suite.

I totally agree with you on this topic.  Often the number of bits used 
to support digitized values is (mistakenly) equated to "dynamic range" 
but the number of bits only has to do with precision and not the 
range.  How values are interpreted defines the range.

As far as the non-linear portion of the film range goes, that is why 
we have colorists to make sense of it all.

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