On 12/31/2010 9:58 PM, Godfrey DiGiorgi wrote:
Not quite ... at least our use of words in explanation differs. I'll bulletize:
- I use the term sharpness to indicate a quality I perceive an image
to have, using my eyes to judge with, not a measuring instrument.
- I use the term actuance to indicate a measured resolution of a
recorded photograph. It is always the observed resolution of an actual
photograph and is synonymous with resolution in that sense.
- I use the term resolution to indicate the calculated or theoretical
capability for detail in a medium, usually. It can also be used to
refer to the measured, observed detail of a specific photograph in
which case it is the same as actuance.
Is that clearer to you?
Only partially.
It is then that LR control called "clarity" should have direct effect on
acutance of an image either displayed to you or printed, right?
Boris
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