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ISO 20462-3:2012
M00005996
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ISO 20462-3:2012 Photography - Psychophysical experimental methods for estimating image quality - Part 3: Quality ruler method
standard by International Organization for Standardization, 05/15/2012
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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.