ISO 20462-3 Set of Photographic Hardcopy Standard Reference Stimuli
These reference prints are offered for use in image quality tests based
on ISO 20462-3, Photography -- Psychophysical experimental methods for
estimating image quality -- Part 3: Quality ruler method. $200 to US addresses or $250 to non-US addresses .
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For more information, and to purchase the ISO 20462-3, go to the ANSI Standards Store.