ISO INTERNATIONAL STANDARD 12646 Third edition 2015-07-15 Graphic technology Displays for colour proofing Characteristics Technologie graphique - Affichages pour la réalisation d'épreuves en couleur-Caracteristiques Reference number IS0 12646:2015(E) ISO @IS02015 IS0 12646:2015(E) COPYRIGHT PROTECTED DOCUMENT @ IS0 2015, 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. ISO copyright office Ch. de Blandonnet 8 . CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +4122 749 09 47 copyright@iso.org www.iso.org @ IS0 2015 - All rights reserved IS0 12646:2015(E) Contents Page Foreword ..iv Introduction. ..V 1 Scope. ..1 2 Normative references ..1 3 Terms and definitions .1 4 Requirements .2 4.1 General 2 4.2 Uniformity of luminance and chromaticity 3 4.2.1 .3 General. 4.2.2 Evaluation of tone uniformity 3 4.2.3 Tonality evaluation (uniformity) .3 4.3 Viewing cone characteristics 3 4.4 Reflectivecharacteristics 4 5 Test methods. .5 5.1 General 5 5.2 Preparation and display set-up .5 5.3 Viewing angle dependent tonality evaluation ("Gamma") .5 5.4 Measurement conditions.. .6 5.4.1 Photometric and colorimetric measurements .6 5.4.2 Measurements as a function of viewing direction .8 Bibliography .11 son to? Standardizann rights reserved iii