ISO INTERNATIONAL STANDARD 12642-2 First edition 2006-12-15 Graphic technology Input data for characterization of 4-colour process printing - Part 2: Expanded data set Technologie graphique Donnees d'entree pour caracterisation d'impression en quadrichromie- Partie 2: Ensemble de données élargies Reference number ISO 12642-2:2006(E) @ ISO 2006 y IHS under lic Not for Resale ISO 12642-2:2006(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF fle can be found in the General Info relative to the file; the PDF-creation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by IsO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. ?ISO2006 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, IsO's member body in the country of the requester. ISO copyright office Case postale 56. CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland @ ISO 2006 - All rights reserved ted without license from IHS Not for Resale ISO 12642-2:2006(E) Contents Page Foreword. Introduction 1 Scope 2 Normative references 3 Terms and definitions. 4 Technical requirements 4.1 Data set characteristics 4.2 Data set definition.... 4.3 Layouts for printing..... 4.4 Data set identification. Annex A (informative) Default layouts and image files AnnexB(informative)Fleshtonedataset... .28 Bibliography. .29 Copyright International Organization for Stardardizalon ghts reserved ii Not for Resale ISO 12642-2:2006(E) Foreword IsO (the International Organization for Standardization) is a worldwide federation of national standards bodies technical committees. Each member body interested in a subject for which a technical committee has been International Standards are drafted in accordance with the rules given in the ISO/lEC Directives, Part 2 The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. ISO 12642-2 was prepared by Technical Committee ISO/TC 130, Graphic technology. characterization of 4-colour process printing: Part 1: Initial data set Part 2: Expanded data set @ ISO 2006 - All rights reserved ional Organization for Standardizatior ISO 12642-2:2006(E) Introduction The existing characterization data set defined in Iso 12642-1 has proven very effective for use in characterizing various printing processes. Two concerns have been raised with respect to the Iso 12642-1 data set.First,manyof thosedevelopingcharacterizationdatafor colourmanagementsystemsfeelthat additional data points are needed to provide better sampling of the data space. The second concern comes from the packaging industry which would like to see both more data points in general but also more data at the highlight end of the scale and in particular more 4-colour data with low levels of black. Several drafts of a data set optimized for package printing (referred to as IT8.7/4) have been prepared by ANSI Committee for Graphic Arts Technologies Standards (CGATS). In addition, the European Colour Initiative (ECl) took an early draft and combined parts of it with the ISO 12642-1 data set and developed a data set known as ECl 2002 that has 1 485 data set elements. ECl 2002 has since been approved