INTERNATIONAL ISO/IEC STANDARD 18477-4 First edition 2017-10 Information technology Scalable compression and coding of continuous-tone still images Part 4: Conformance testing Technologies de I'information Compression échelonnable et codage d'images plates en ton continu- Partie 4: Essai de conformite Reference number IS0/IEC18477-4:2017(E) EC s Copyright International Organization for Standardization @IS0/IEC 2017 ACKEY, MA out license from IHS IS0/IEC 18477-4:2017(E) COPYRIGHT PROTECTED DOCUMENT IS0/IEC 2017, Published in Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form 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 +41 22 749 09 47 [email protected] www.iso.org @ IS0/IEC 2017 - All rights reserved Univ/5926867100, User=JACKEY, MA or networking pemited without license from IHS IS0/IEC 18477-4:2017(E) Contents Page Foreword ..iv Introduction. ..V 1 Scope. ..1 2 Normative references 3 Terms, definitions, abbreviated terms and symbols. .2 3.1 Terms and definitions .2 3.2 Symbols... ..8 3.3 Abbreviated terms ..8 4 Conventions .8 4.1 Conformance language ..8 4.2 Operators 9 4.2.1 Arithmetic operators. 9 4.2.2 Logical operators.. .9 4.2.3 Relational operators ..9 4.2.4 Precedence order of operators .9 4.2.5 Mathematical functions, .10 5 Conventions ..10 6 General description .10 6.1 Overview .10 6.2 Parts and profiles. .10 6.3 Decoders 11 6.4 Implementation conformance statement .11 6.5 Abstracttestsuites. .11 6.6 Decoder conformance testing procedures .11 7 Copyright .11 8 Conformance files availability and updates. .11 Annex A (normative) Decoder conformance testing procedures ..12 Annex B (normative) Decoder conformance tests ..18 Annex C (normative) Codestream conformance ..29 Bibliography .31 iii ed without license from IHS CKEY, MA