ISO INTERNATIONAL STANDARD 12641-1 First edition 2016-05-01 Graphic technology Prepress digital data exchange - Colour targets for input scanner calibration Part 1: Colour targets for input scanner calibration Technologie graphique - Echange de données numériques de préimpression - Cibles de couleur pour étalonnage a I'entrée du scanner Reference number ISO 12641-1:2016(E) ISO International Organization for Standardization @ IS0 2016 HEJIANG INS TANDARDIZATION C1 5956617 IS0 12641-1:2016(E) COPYRIGHTPROTECTEDDOCUMENT IS0 2016, Published in Switzerland All rights reserved. Unless otherwise specified, 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. ISOcopyrightoffice Ch. de Blandonnet 8 . CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +41 22 749 09 47 [email protected] www.iso.org Intenationaibr PrganizationforStandardization ensee-ZHEJIANG INST OF STANDARDIZRoISQ ,6 - All rights reserved Not for Resale, 2016/7/20 08:09:26 etworking permitted without license from IHS IS0 12641-1:2016(E) Contents Page Foreword ..iv Introduction. ..V 1 Scope. 2 Normative references 3 Terms and definitions 4 Requirements ..4 4.1 Target design .4 4.2 Transmission targets ..4 4.2.1 Target layout and physical characteristics .4 4.2.2 Patch size... 4.2.3 Colour gamut mapping 9 4.2.4 Neutral and dye scale values 10 4.2.5 Neutral scale mapping .11 4.3 Reflection targets .11 4.3.1 Target layout and physical characteristics .11 4.3.2 Patch size. .13 4.3.3 Colour gamut mapping .14 4.3.4 Neutral and dye scale values .14 4.3.5 Neutral scale mapping .15 4.4 Allowable tolerances on patch values .15 4.4.1 Uncalibrated targets 15 4.4.2 Calibrated targets. .16 4.5 Spectral measurement and colorimetric calculation .16 4.6 Data reporting .16 4.7 Data file format .16 4.7.1 File format. ..16 4.7.2 Keyword syntax and usage. .16 4.7.3 Data format identifiers. ..17 4.8 Useable target life. .19 Annex A (informative) Gamut mapping - Computational reference .20 Annex B (informative) Application notes .22 Bibliography .25 iii ee=ZHEJIANG INSTOFSTANDARDIZATION C15956617 without license from IHS Not for Resale, 2016/7/20 08:09:26