Standards Development
This document describes the evaluation of glossiness of photographic reflection prints, which consists of specular gloss measurement and image clarity measurement. This document is applicable to any photographic printing technologies, including inkjet, thermal dye transfer, electrophotography and silver halide (chromogenic) technologies.
Glossiness is an optical property regarding reflected light from print surfaces. It is important for photographic prints as long as qualities of printed image because it has wide variety from very high glossy to dead matt surfaces. But there has been no published standard regarding glossiness of photographic prints.
As stated in ISO TR 20791-1:2020, several properties affect the gloss perception of photographic prints. Specular gloss and image clarity (distinctness of image) are the two major properties among them. This document provides the measurement methods of these two major properties to evaluate glossiness of photographic prints.
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