ISO/TS 18621-31:2020

Graphic technology — Image quality evaluation methods for printed matter — Part 31: Evaluation of the perceived resolution of printing systems with the Contrast–Resolution chart

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.

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

General Information

• Status: Withdrawn
• Publication Date: 10-Dec-2020
• ICS: 37.100.10 - Reproduction equipment
• Technical Committee: ISO/TC 130 - Graphic technology
• Drafting Committee: ISO/TC 130/JWG 14 - Joint TC 130 - TC 42 - ISO/IEC JTC 1/SC 28 WG: Print quality measurement methods
• Parallel Committee: ISO/IEC JTC 1/SC 28 - Office equipment
• Current Stage: 9599 - Withdrawal of International Standard
• Completion Date: 12-Jan-2024

Relations

• Revised: ISO/TS 18621-31:2024 - Graphic technology — Image quality evaluation methods for printed matter — Part 31: Evaluation of the perceived resolution of printing systems with the Contrast–Resolution chart
• Effective Date: 06-Jun-2022

Standards Content (Sample)

TECHNICAL ISO/TS
SPECIFICATION 18621-31
First edition
2020-12
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
Reference number
ISO/TS 18621-31:2020(E)
©
ISO 2020

---------------------- Page: 1 ----------------------
ISO/TS 18621-31:2020(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2020
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting
on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address
below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii © ISO 2020 – All rights reserved

---------------------- Page: 2 ----------------------
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 . 6
5.2 Element identification .
...

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

---------------------- Page: 1 ----------------------
ISO/TS 18621-31:2020(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2020
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting
on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address
below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii PROOF/ÉPREUVE © ISO 2020 – All rights reserved

---------------------- Page: 2 ----------------------
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 .
...