BS ISO/IEC BRITISH STANDARD 12089:1997 Information technology - Computer graphicsand image processing Encoding for the Image Interchange Facility (IIF) ICS 35.140 BSi BSIS0/IEC12089:1997 National foreword This British Standard reproduces verbatim ISO/IEC 12089:1997 and implements it as the UK national standard. The UK participation in its preparation was entrusted to Technical Committee IST/31, Computer graphics and image processing, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interestsinformed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index", or by using the “Find" facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does notofitselfconferimmunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, the ISO/IEC title page, page ii, pages 1 to 13 and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. This British Standard, having been prepared under the Amendments issued since publication direction of the DISCBoard, waspublished underthe Amd.No. Date Comments authority of the Standards Board and comes into effect on 15February1998 BSI04-1999 ISBN 0 580 28716 5 BS ISO/IEC 12089 :1997 Contents Page National foreword Inside front cover Foreword ii 1 Scope 1 2 Normative references 1 3 Definitions and abbreviations 2 4 Encoding rules for the IIF syntax entities 2 5 IIF syntax entities for the representation of pixel fields 2 BSI04-1999 i