[argyllcms] Re: Best way to proceed?
- From: Klaus Karcher <lists@xxxxxxxxxxxxxxxxx>
- To: argyllcms@xxxxxxxxxxxxx
- Date: Sun, 01 Jun 2008 12:13:50 +0200
Ben Goren wrote:
Does the i1 itself average the reading of everything that makes it
through its aperture?
Alastair M. Robinson wrote:
That I don't know. My gut feeling is that it must do to *some* extent,
to cope with halftoned patches. How much this is centre-weighted, I
don't know, though.
One way to find out more about it could be spot readings of a siemens
star. One could determine the spatial resolution of the i1 this way. I
guess it integrates reasonably well over the aperture area.
You can also compare wood measurements taken in close proximity to get a
sense of the variances.
the presence of paper in the scene,
especially if it's bright white, is likely to have a subtle effect on
the camera's response
Alastair is right IMHO: as far as my experience goes, the irradiation of
the surrounding area can affect the results strongly. I'd recommend
using black paper or attending Alastair's suggestion.
Klaus Karcher
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