Hello Marti, I'm sorry for bombarding you with half a dozen questions ;-)
Here's another one and I'd be interested in your opinion on the topic:
I have seen the following technique for so-called extended profiles described:
"An extended profile is a scanner profile created with a Level adjustment in the target scan. The target scan can be extended in the highlights or in the shadows or in both.
The target scan is lighten/darken up a little bit prior to feeding it to the Profiling software. The reference file IS NOT CHANGED though.
If extending the shadows, for instance RGB=10 is mapped to 0. As a result, the profiling software will be fooled into believing that the scanner is inherently dark and generate a profile which tends to lighten the image substantially."
I have played with a shadow extended profile but while it indeed lightens a dark image it also very often introduces posterization.
--
Regards,
Tarlika Elisabeth Schmitz
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