ISO 20462-3:2012 Preview
Photography -- Psychophysical experimental methods for estimating image quality -- Part 3: Quality ruler method
This standard was last reviewed and confirmed in 2017. Therefore this version remains current.
ISO 20462-3:2012 specifies:
the nature of a quality ruler;
hardcopy and softcopy implementations of quality rulers;
how quality rulers may be generated or obtained; and
the standard quality scale (SQS), a fixed numerical scale that may be measured using quality rulers.
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