New article on color management

Started Apr 26, 2013 | Discussions thread
gollywop
Veteran MemberPosts: 5,526
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Re: Yeah...
In reply to Hugowolf, Apr 29, 2013

Hugowolf wrote:

gollywop wrote:

And, although the spaces are based on integer values, processing is done with floating point numbers.

In processors like RPP, Rawtheraee, and PhotoNinja, yes.  In ACR/PS, I don't think so.  Adobe still uses integer arithmetic as far as I know.  But I'd certainly be willing to be guided to documentation that says otherwise.

I would be surprised if it were otherwise. It is standard practice to map 0-255 to 0-1, it is just much easier to algorithmically process that way.

Surprise is indeed fun. But I'm waiting for documentation that supports the surprise.

Meanwhile normalizations do not require floating point.

http://en.wikipedia.org/wiki/Fixed-point_arithmetic

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