ISO/TS 18621-31:2020

TECHNICAL ISO/TS
SPECIFICATION 18621-31
First edition
Graphic technology — Image quality
evaluation methods for printed
matter —
Part 31:
Evaluation of the perceived resolution
of printing systems with the Contrast–
Resolution chart
Technologie graphique — Méthodes d’évaluation de la qualité
d’image pour les imprimés —
Partie 31: Évaluation de la résolution perçue des systèmes
d’impression avec un graphique de contraste–résolution
Member bodies are requested to consult relevant national interests in ISO/IEC
JTC 1/SC 28,ISO/TC 42 before casting their ballot to the e-Balloting application.
PROOF/ÉPREUVE
Reference number
ISO/TS 18621-31:2020(E)
©
ISO 2020

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ISO/TS 18621-31:2020(E)

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ii PROOF/ÉPREUVE © ISO 2020 – All rights reserved

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ISO/TS 18621-31:2020(E)

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Requirements . 3
4.1 General . 3
4.2 Apparatus requirements . 3
4.2.1 Printing system requirements . 3
4.2.2 Scanning system requirements . 3
4.3 Procedure . 3
4.3.1 Test chart . 3
4.3.2 Evaluation intent . 4
4.3.3 Printing and scanning . . 5
4.3.4 Evaluation process . 6
5 Resolution-Score processing . 6
5.1 General .
...