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现行 ISO/TS 18621-21:2023
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Graphic technology — Image quality evaluation methods for printed matter — Part 21: Measurement of 1D distortions of macroscopic uniformity utilizing scanning spectrophotometers 印刷技术.印刷品的图像质量评价方法.第21部分:利用扫描分光光度计测量宏观均匀性的1D失真
发布日期: 2023-03-27
该文件定义了一种测量方法,用于评估在水平和垂直方向上定向的印刷区域(例如条纹和带)的宏观均匀性中的失真。 它提供了测试表格的布局、在2D采样网格中进行测量的颜色测量设备的使用以及计算宏观均匀性分数的公式的要求。 本文档不涵盖任何非相邻或非水平或垂直图案。由于所使用的空间频率,宏观均匀性得分不测量高频(精细)图案,例如缺少喷嘴。

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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归口单位: ISO/TC 130
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