ISO/IEC INTERNATIONAL STANDARD 29170-2 First edition 2015-08-15 Information technology Advanced image coding and evaluation - Part 2: Evaluation procedure for nearly lossless coding Technologies de l'information-Codage d'image avancé et évaluation Partie 2: Mode operatoire d'évaluation pour codage presque sans perte Reference number IS0/IEC 29170-2:2015(E) IEC @IS0/IEC2015 IS0/IEC29170-2:2015(E) COPYRIGHTPROTECTEDDOCUMENT @ IS0/IEC 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.+41227490111 Fax+41227490947 copyright@iso.org www.iso.org @IS0/IEC 2015 -All rights reserved IS0/IEC29170-2:2015(E) Contents Page Foreword .iv Introduction. .V 1 Scope. ..1 2 Normative references .1 3 Terms and definitions .1 4 Symbols and abbreviated terms .3 5 Test methods. .3 5.1 Protocol selection. 3 5.2 Media selection. 3 5.3 Observers 3 5.3.1 Observerselection. 3 5.3.2 Observervisual screening 4 5.3.3 Instructions to observers 4 5.3.4 Training session. 4 5.4 Viewing conditions. 5 5.4.1 Lighting and display calibration 5 5.4.2 Viewing distance 5 5.4.3 Viewing position 6 5.5 Viewing time 7 5.6 Trial retry. 7 5.7 Test reporting. 7 5.8 Verification of procedure .7 Annex A (normative) Forced choice paradigm with non-flickering images test protocol .8 Annex B (normative) Forced choice paradigm with interleaved images test protocol .10 AnnexC (normative) Media selectionand preparationprocedure ..12 Annex D (normative) Test report procedure ..15 AnnexE (informative) Observervisiontesting ..21 AnnexF (informative) Self-testcertification .22 Bibliography .25 ianaranadann-All rightsreserved ili