标准编号：ISO/TS 18621-21:2020
中文名称：印刷技术 印刷品图像质量评价方法 第21部分：用扫描分光光度计测量宏观均匀性的一维畸变
英文名称：Graphic technology — Image quality evaluation methods for printed matter — Part 21: Measurement of 1D distortions of macroscopic uniformity utilizing scanning spectrophotometers
发布日期：2020-11
标准范围
This document defines a measurement method for the evaluation of distortions in the macroscopic
uniformity of printed areas that are oriented in the horizontal and vertical direction, such as streaks
and bands.
It provides requirements for the layout of the test form, the use of a colour measurement device taking
measurements in a 2D sampling grid, and the formula to compute the Macro-Uniformity-Score.
This document does not cover any non-adjacent or non-horizontal nor vertical patterns. Due to the used
spatial frequency, the Macro-Uniformity-Score does not measure high frequency (fine) patterns such as
missing nozzles.
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