1、ApprovedAmerican NationalStandardANSI/I3A IT10.7466-2002for Photography Electronic Still Picture Imaging Reference Input Medium Metric RGB Color Encoding: RIMM-RGBANSI/I3A IT10.7466-2002ANSI/I3A IT10.7466-2002American National Standardfor Photography Electronic Still Picture Imaging Reference Input
2、Medium MetricRGB Color Encoding: RIMM-RGBSecretariatInternational Imaging Industry Association, Inc. (I3A)Approved July 17, 2002 American National Standards Institute, Inc.Approval of an American National Standard requires review by ANSI that therequirements for due process, consensus, and other cri
3、teria for approval havebeen met by the standards developer.Consensus is established when, in the judgement of the ANSI Board ofStandards Review, substantial agreement has been reached by directly andmaterially affected interests. Substantial agreement means much more thana simple majority, but not n
4、ecessarily unanimity. Consensus requires that allviews and objections be considered, and that a concerted effort be madetowards their resolution.The use of American National Standards is completely voluntary; theirexistence does not in any respect preclude anyone, whether he has approvedthe standard
5、s or not, from manufacturing, marketing, purchasing, or usingproducts, processes, or procedures not conforming to the standards.The American National Standards Institute does not develop standards andwill in no circumstances give an interpretation of any American NationalStandard. Moreover, no perso
6、n shall have the right or authority to issue aninterpretation of an American National Standard in the name of the AmericanNational Standards Institute. Requests for interpretations should beaddressed to the secretariat or sponsor whose name appears on the titlepage of this standard.CAUTION NOTICE: T
7、his American National Standard may be revised orwithdrawn at any time. The procedures of the American National StandardsInstitute require that action be taken periodically to reaffirm, revise, orwithdraw this standard. Purchasers of American National Standards mayreceive current information on all s
8、tandards by calling or writing the AmericanNational Standards Institute.American National StandardPublished byAmerican National Standards Institute, Inc.25 West 43rd Street, New York, NY 10036Copyright 2002 by American National Standards Institute, Inc.All rights reserved.No part of this publication
9、 may be reproduced in anyform, in an electronic retrieval system or otherwise,without prior written permission of the publisher.Printed in the United States of AmericaiContentsPageForeword ii1 Scope . 12 Normative References 13 Definitions. 14 Requirements . 24.1 General. 24.2 Reference Viewing Envi
10、ronment 34.3 Reference Medium . 44.4 RIMM RGB Encoding . 44.5 Inverse RIMM RGB Encoding 6Table1 CIE chromaticities for reference medium primaries and neutral. 4AnnexesA Example color rendering transform from RIMM RGB to ROMM RGB 8B Bibliography 15iiForeword (This foreword is not part of American Nat
11、ional Standard ANSI/I3A IT10.7466-2002.)This I3A standard has been developed in order to meet the industry need for a com-plete, fully documented, publicly available definition of a wide-primary scene-referredextended color-gamut RGB color encoding. This encoding provides a way to repre-sent scene-r
12、eferred images that does not limit the color gamut to those colors capa-ble of being displayed on a CRT monitor, or require the use of negative RGBcolorimetry co-ordinates. An extended color-gamut scene-referred color encoding is particularly desirable forprofessional photography applications. For e
13、xample, colors captured by digital cam-eras, as well as conventional capture devices such as photographic film, may be out-side those that can be represented within the color gamut of a typical monitor or othertypes of output devices. Likewise, scene-referred images will generally have a largerlumin
14、ance dynamic range than output-referred images since they have not beenmodified by a color rendering process to fit the images within the limitations of theoutput media and apply appropriate tone/color reproduction aims. Retaining the un-rendered scene-referred image data has the advantage that it p
15、reserves the option tomake decisions about how a particular image should be rendered. For example, ascene-referred image of a back-lit scene can retain information about both the darkforeground region and the bright background region of the scene. This informationcan be used to make a properly expos
16、ed print of either the foreground region or thebackground region, or alternatively can be used to create an improved image by ren-dering the two regions differently. By using a standard scene-referred extended col-or-gamut color encoding, images can be stored, interchanged and manipulatedwithout res
17、tricting the image to a particular rendering intent or output device. TheReference Input Medium Metric RGB (RIMM RGB) color encoding specified in thisI3A standard meets the needs of these types of applications. An extended dynamicrange version of this color encoding known as Extended Reference Input
18、 MediumMetric RGB (ERIMM RGB) is also specified for use with high-dynamic range inputsources. (E)RIMM RGB is intended to be a companion to the output-referred ROMMRGB color encoding specified in ANSI/I3A IT10.7666-2002. Both color encodingsare based on the same “wide RGB“ color space to facilitate t
19、he development of im-age processing algorithms and simple color rendering transformations to convertscene-referred RIMM RGB images to rendered output-referred ROMM RGB images.Within ISO/TC42, work has begun to develop ISO 22028, “Extended colour encodingfor digital still image storage, manipulation
20、and interchange“. Work on this standardmay progress as part of a new joint project team between ISO/TC42 and IEC/TC100that is being set up in accordance with JTAB Decision 3/2000. After an internationalstandard specifying RIMM-RGB is published, it is anticipated that this I3A standardwill be withdra
21、wn.The International Imaging Industry Association (I3A) draws attention to the fact that itis claimed that compliance with this Standard may involve the use of patents ownedby Eastman Kodak Company. I3A takes no position concerning the evidence, validi-ty, and scope of these patents. Eastman Kodak C
22、ompany has assured I3A that it iswilling to negotiate licenses under reasonable and non-discriminatory terms and con-ditions with applicants throughout the world. In this respect, a statement from East-man Kodak Company is registered with I3A. Information may be obtained fromEastman Kodak Company, 3
23、43 State Street, Rochester, NY 14650.Attention is drawn to the possibility that some of the elements of this Standard maybe the subject of patent rights other than those identified above. I3A shall not be heldresponsible for identifying any or all such patent rights.Annexes A and B of this I3A stand
24、ard are for information only.iiiSuggestions for the improvement of this standard will be welcome. They should besent to the International Imaging Industry Association, Inc. (I3A), 550 MamaroneckAvenue, Suite 307, Harrison, NY 10528-1615, e-mail: i3astdsi3a.org.This standard was processed and approve
25、d for submittal to ANSI by I3A TechnicalCommittee IT10 on Electronic Still Picture Imaging. Committee approval of the stan-dard does not necessarily imply that all committee members voted for its approval. Atthe time it approved this edition of the standard, the IT10 Committee had the follow-ing mem
26、bers:Ken Parulski, IT10 ChairJack Holm, IT10 Vice-ChairKevin Spaulding, Project LeaderJames A. Peyton, IT10 SecretariatOrganization Represented Name of RepresentativeI3A.Seth AnsellTimothy Kohler (Alt.)Kenneth M. Parulski Tim Looney (Alt.)Kevin E. Spaulding (Alt.)Timothy J. Whitcher (Alt.)Don Willia
27、ms (Alt.)William J. DonovanEric EdwardsJack HolmMark Gorzynski (Alt.)Richard Lyon (Alt.)Steve SwenAdobe IncScott FosheeAgilent Technologies LabsZachi BaharavBetter LightRobin MyersMichael Collette (Alt.)Corbis CorporationBill RadcliffeImation Corporation Richard FischIntel .Werner MetzLifetouch, Inc
28、.Ron AntosMicrosoft .Michael StokesFranc Camara (Alt.)Mosaic Imaging.Stephen BlackstockRIT Image Permanence Institute Franziska FreySwiss Federal Institute of Technology Sabine SsstrunkViewQuest Technologies, Inc. Jeff LeeZing Network.Eran SteinbergAMERICAN NATIONAL STANDARD ANSI/I3A IT10.7466-2002G
29、3G20G3American National Standard for Photography G177G3Electronic Still Picture Imaging Reference Input Medium Metric RGB Color Encoding: RIMM-RGB G3G3G20G3G3G3G54G70G82G83G72G3G3G3G55G75G76G86G3G44G22G36G3G86G87G68G81G71G68G85G71G3G86G83G72G70G76G73G76G72G86G3G68G3G73G68G80G76G79G92G3G82G73G3G72G91
30、G87G72G81G71G72G71G3G70G82G79G82G85G16G74G68G80G88G87G3G86G70G72G81G72G16G85G72G73G72G85G85G72G71G3G53G42G37G3G70G82G79G82G85G3G72G81G70G82G71G76G81G74G86G3G71G72G86G76G74G81G68G87G72G71G3G68G86G3G53G72G73G72G85G72G81G70G72G3G44G81G83G88G87G3G48G72G71G76G88G80G3G48G72G87G85G76G70G3G53G42G37G3G11G53G
31、44G48G48G3G53G42G37G12G17G3G3G39G76G74G76G87G68G79G3G76G80G68G74G72G86G3G72G81G70G82G71G72G71G3G88G86G76G81G74G3G53G44G48G48G3G53G42G37G3G70G68G81G3G69G72G3G80G68G81G76G83G88G79G68G87G72G71G15G3G86G87G82G85G72G71G15G3G87G85G68G81G86G80G76G87G87G72G71G15G3G71G76G86G83G79G68G92G72G71G15G3G82G85G3G83G8
32、5G76G81G87G72G71G3G69G92G3G71G76G74G76G87G68G79G3G86G87G76G79G79G3G83G76G70G87G88G85G72G3G76G80G68G74G76G81G74G3G86G92G86G87G72G80G86G17G3G3G55G75G85G72G72G3G83G85G72G70G76G86G76G82G81G3G79G72G89G72G79G86G3G68G85G72G3G71G72G73G76G81G72G71G3G88G86G76G81G74G3G27G16G15G3G20G21G16G3G68G81G71G3G20G25G16G
33、69G76G87G86G18G70G75G68G81G81G72G79G17G3G3G36G81G3G72G91G87G72G81G71G72G71G3G79G88G80G76G81G68G81G70G72G3G71G92G81G68G80G76G70G3G85G68G81G74G72G3G89G72G85G86G76G82G81G3G82G73G3G53G44G48G48G3G53G42G37G3G76G86G3G68G79G86G82G3G71G72G73G76G81G72G71G3G71G72G86G76G74G81G68G87G72G71G3G68G86G3G40G91G87G72G8
34、1G71G72G71G3G53G72G73G72G85G72G81G70G72G3G44G81G83G88G87G3G48G72G71G76G88G80G3G48G72G87G85G76G70G3G53G42G37G3G11G40G53G44G48G48G3G53G42G37G12G17G3G3G55G90G82G3G83G85G72G70G76G86G76G82G81G3G79G72G89G72G79G86G3G82G73G3G40G53G44G48G48G3G53G42G37G3G68G85G72G3G71G72G73G76G81G72G71G3G88G86G76G81G74G3G20G2
35、1G16G3G68G81G71G3G20G25G16G69G76G87G86G18G70G75G68G81G81G72G79G17G3G3G21G3G3G3G49G82G85G80G68G87G76G89G72G3G53G72G73G72G85G72G81G70G72G86G3G55G75G72G3G73G82G79G79G82G90G76G81G74G3G86G87G68G81G71G68G85G71G86G3G70G82G81G87G68G76G81G3G83G85G82G89G76G86G76G82G81G86G15G3G90G75G76G70G75G15G3G87G75G85G82G8
36、8G74G75G3G85G72G73G72G85G72G81G70G72G3G76G81G3G87G75G76G86G3G87G72G91G87G15G3G70G82G81G86G87G76G87G88G87G72G3G83G85G82G89G76G86G76G82G81G86G3G82G73G3G87G75G76G86G3G86G87G68G81G71G68G85G71G17G3G3G36G87G3G87G75G72G3G87G76G80G72G3G82G73G3G83G88G69G79G76G70G68G87G76G82G81G15G3G87G75G72G3G72G71G76G87G76G
37、82G81G86G3G90G72G85G72G3G89G68G79G76G71G17G3G3G36G79G79G3G86G87G68G81G71G68G85G71G86G3G68G85G72G3G86G88G69G77G72G70G87G3G87G82G3G85G72G89G76G86G76G82G81G15G3G68G81G71G3G83G68G85G87G76G72G86G3G87G82G3G68G74G85G72G72G80G72G81G87G86G3G69G68G86G72G71G3G82G81G3G87G75G76G86G3G86G87G68G81G71G68G85G71G3G68G
38、85G72G3G72G81G70G82G88G85G68G74G72G71G3G87G82G3G76G81G89G72G86G87G76G74G68G87G72G3G87G75G72G3G83G82G86G86G76G69G76G79G76G87G92G3G82G73G3G68G83G83G79G92G76G81G74G3G87G75G72G3G80G82G86G87G3G85G72G70G72G81G87G3G72G71G76G87G76G82G81G86G3G82G73G3G87G75G72G3G86G87G68G81G71G68G85G71G86G3G76G81G71G76G70G68G
39、87G72G71G3G69G72G79G82G90G17G3G3G48G72G80G69G72G85G86G3G82G73G3G44G40G38G3G68G81G71G3G44G54G50G3G80G68G76G81G87G68G76G81G3G85G72G74G76G86G87G72G85G86G3G82G73G3G70G88G85G85G72G81G87G79G92G3G89G68G79G76G71G3G86G87G68G81G71G68G85G71G86G17G3G38G44G40G3G51G88G69G79G76G70G68G87G76G82G81G3G49G82G17G3G20G24
40、G17G21G15G3G70G82G79G82G85G76G80G72G87G85G92G3G44G54G50G18G38G44G40G3G20G19G24G21G26G29G20G28G28G20G15G3G38G44G40G3G54G87G68G81G71G68G85G71G3G38G82G79G82G85G76G80G72G87G85G76G70G3G50G69G86G72G85G89G72G85G86G3G44G38G38G17G20G29G21G19G19G20G15G3G41G76G79G72G3G41G82G85G80G68G87G3G73G82G85G3G38G82G79G82
41、G85G3G51G85G82G73G76G79G72G86G3G44G55G56G16G53G3G37G55G17G26G19G28G16G22G29G20G28G28G27G15G3G51G68G85G68G80G72G87G72G85G3G89G68G79G88G72G86G3G73G82G85G3G87G75G72G3G43G39G55G57G3G86G87G68G81G71G68G85G71G86G3G73G82G85G3G83G85G82G71G88G70G87G76G82G81G3G68G81G71G3G76G81G87G72G85G81G68G87G76G82G81G68G79G
42、3G83G85G82G74G85G68G80G80G72G3G72G91G70G75G68G81G74G72G3G36G49G54G44G18G44G22G36G3G44G55G20G19G17G26G25G25G25G16G21G19G19G21G15G3G51G75G82G87G82G74G85G68G83G75G92G3G177G3G40G79G72G70G87G85G82G81G76G70G3G86G87G76G79G79G3G83G76G70G87G88G85G72G3G76G80G68G74G76G81G74G3G177G3G53G72G73G72G85G72G81G70G72G3
43、G50G88G87G83G88G87G3G48G72G71G76G88G80G3G48G72G87G85G76G70G3G53G42G37G3G38G82G79G82G85G3G72G81G70G82G71G76G81G74G29G3G53G50G48G48G16G53G42G37G3G3G22G3G3G3G39G72G73G76G81G76G87G76G82G81G86G3G41G82G85G3G87G75G72G3G83G88G85G83G82G86G72G3G82G73G3G87G75G76G86G3G86G87G68G81G71G68G85G71G15G3G87G75G72G3G73G
44、82G79G79G82G90G76G81G74G3G71G72G73G76G81G76G87G76G82G81G86G3G68G83G83G79G92G29G3G22G17G20G3G3G3G38G82G79G82G85G3G85G72G81G71G72G85G76G81G74G3G48G68G83G83G76G81G74G3G82G73G3G76G80G68G74G72G3G71G68G87G68G3G85G72G83G85G72G86G72G81G87G76G81G74G3G87G75G72G3G70G82G79G82G85G76G80G72G87G85G76G70G3G70G82G16G
45、82G85G71G76G81G68G87G72G86G3G82G73G3G87G75G72G3G72G79G72G80G72G81G87G86G3G82G73G3G68G3G86G70G72G81G72G3G82G85G3G82G85G76G74G76G81G68G79G3G87G82G3G76G80G68G74G72G3G71G68G87G68G3G85G72G83G85G72G86G72G81G87G76G81G74G3G87G75G72G3G70G82G79G82G85G76G80G72G87G85G76G70G3G70G82G16G82G85G71G76G81G68G87G72G86G
46、3G82G73G3G87G75G72G3G72G79G72G80G72G81G87G86G3G82G73G3G68G3G85G72G83G85G82G71G88G70G87G76G82G81G17G3G22G17G21G3G3G3G50G69G86G72G85G89G72G85G3G68G71G68G83G87G76G89G72G3G79G88G80G76G81G68G81G70G72G3G73G68G70G87G82G85G3G53G68G87G76G82G3G82G73G3G87G75G72G3G79G88G80G76G81G68G81G70G72G3G82G73G3G68G3G86G87
47、G76G80G88G79G88G86G3G87G82G3G87G75G72G3G79G88G80G76G81G68G81G70G72G3G82G73G3G68G3G86G87G76G80G88G79G88G86G3G90G75G76G70G75G3G68G81G3G82G69G86G72G85G89G72G85G3G68G71G68G83G87G72G71G3G87G82G3G87G75G72G3G89G76G72G90G76G81G74G3G72G81G89G76G85G82G81G80G72G81G87G3G90G82G88G79G71G3G76G81G87G72G85G83G85G72G
48、87G3G87G82G3G69G72G3G68G3G83G72G85G73G72G70G87G3G90G75G76G87G72G3G71G76G73G73G88G86G72G85G17G3G36G49G54G44G18G44G22G36G3G44G55G20G19G17G26G23G25G25G16G21G19G19G21G3G21G3G22G17G22G3G3G3G36G71G68G83G87G72G71G3G90G75G76G87G72G3G38G82G79G82G85G3G86G87G76G80G88G79G88G86G3G87G75G68G87G3G68G81G3G82G69G86G7
49、2G85G89G72G85G3G90G75G82G3G76G86G3G68G71G68G83G87G72G71G3G87G82G3G87G75G72G3G89G76G72G90G76G81G74G3G72G81G89G76G85G82G81G80G72G81G87G3G90G82G88G79G71G3G77G88G71G74G72G3G87G82G3G69G72G3G83G72G85G73G72G70G87G79G92G3G68G70G75G85G82G80G68G87G76G70G3G68G81G71G3G87G82G3G75G68G89G72G3G68G3G79G88G80G76G81G68G81G70G72G3G73G68G70G87G82G85G3G82G73G3G88G81G76G87G92G30G3G76G17G72G15G3G68G69G86G82G79G88G87G72G3G70G82G79G82G85G76G80G72G87G85G76G70G3G70G82G82G85G71G76G81G68G87G72G86G3G87G75G68G87G3G68G81G3G82G69G86G72G85G89G72G85G3G90G82G88G79G71G3G70G82G81G86G76G71G72G85G3G87G82G3G69G72G3G68G3G83G
