ISO/TC 130/JWG 14 - Joint TC 130 - TC 42 - ISO/IEC JTC 1/SC 28 WG: Print quality measurement methods

This document specifies the Contrast?Resolution test chart, the requirements on the printing process needed to reproduce this test chart, the required characteristics of a high resolution scanner needed to digitize the information reproduced on printed test charts, and the requirements on the interpretation of this digitized data. It also specifies the resolution-score method for evaluating the perceptual resolution of printed material using the Contrast?Resolution test chart. The procedure specified in this document is intended for a characterization of the perceived resolution of a graphic arts production printing system using the Contrast?Resolution test chart.

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.

This document defines procedures to measure and compare the colour gamuts of RGB and CMYK printing processes. It is not applicable to other printing processes.