FZ200 Diffraction Limit - Panasonic Tech Service

Started Aug 27, 2013 | Discussions thread
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Detail Man
Detail Man Forum Pro • Posts: 16,402
Re: Modelling Spatial Frequency (MTF) Response Effects

Source: http://www.cg.tuwien.ac.at/research/theses/matkovic/img73.gif

where "f" is the spatial frequency of the visual stimuli given in cycles/degree

Source: http://www.cg.tuwien.ac.at/research/theses/matkovic/node20.html

From: http://www.dpreview.com/forums/post/51534113

From my searches relating to a human "contrast sensitivity" model, this one is typical, and has an associated mathematical identity for use in modelling. Note its inevitable generality, however.

See Pages 41-45 (and the graphic on Page 45) of this paper:

http://www.sidchapters.org/ba/Archives/2009/Image%20Artifacts%20in%20the%20Digital%20Era%20-%20Jim%20Larimer%20%2818-Feb-09%29.pdf

... for more specific information regarding human perceptual CSFs for various cases/conditions.

DM ...

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