BS ISO 14524-2009 Photography - Electronic still-picture Cameras - Methods for measuring optoelectronic conversion functions (OECFs)《摄影 数码照相机 光电转换函数(OECFs)的测量方法》.pdf
《BS ISO 14524-2009 Photography - Electronic still-picture Cameras - Methods for measuring optoelectronic conversion functions (OECFs)《摄影 数码照相机 光电转换函数(OECFs)的测量方法》.pdf》由会员分享,可在线阅读,更多相关《BS ISO 14524-2009 Photography - Electronic still-picture Cameras - Methods for measuring optoelectronic conversion functions (OECFs)《摄影 数码照相机 光电转换函数(OECFs)的测量方法》.pdf(34页珍藏版)》请在麦多课文档分享上搜索。
1、BS ISO14524:2009ICS 37.040.10NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDPhotography Electronic still-picturecameras Methodsfor measuring opto-electronic conversionfunctions (OECFs)This British Standardwas published under theauthority of the StandardsPolicy
2、and StrategyCommittee on 30 June2009. BSI 2009ISBN 978 0 580 58412 1Amendments/corrigenda issued since publicationDate CommentsBS ISO 14524:2009National forewordThis British Standard is the UK implementation of ISO 14524:2009. Itsupersedes BS ISO 14524:1999 which is withdrawn.The UK participation in
3、 its preparation was entrusted to TechnicalCommittee CPW/42, Photography.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisionsof a contract. Users are responsible for its correct appl
4、ication.Compliance with a British Standard cannot confer immunityfrom legal obligations.BS ISO 14524:2009Reference numberISO 14524:2009(E)ISO 2009INTERNATIONAL STANDARD ISO14524Second edition2009-02-15Photography Electronic still-picture cameras Methods for measuring opto-electronic conversion funct
5、ions (OECFs) Photographie Appareils de prises de vue lectroniques Mthodes de mesure des fonctions de conversion opto-lectroniques BS ISO 14524:2009ISO 14524:2009(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, this file may be printed or vi
6、ewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In downloading this file, parties accept therein the responsibility of not infringing Adobes licensing policy. The ISO Central Secretariat accepts no liability i
7、n this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable
8、 for use by ISO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. COPYRIGHT PROTECTED DOCUMENT ISO 2009 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utili
9、zed in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISOs member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax +
10、 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii ISO 2009 All rights reservedBS ISO 14524:2009ISO 14524:2009(E) ISO 2009 All rights reserved iiiContents Page Foreword iv Introduction v 1 Scope . 1 2 Normative references . 1 3 Terms and definitions. 1 4 Test method
11、s. 3 4.1 General. 3 4.2 Camera OECF measurement . 4 4.3 Focal plane OECF measurement (method A) 4 4.4 Alternative focal plane OECF measurement (method B) 4 5 Illumination 5 5.1 Focal plane OECF measurement (method A) 5 5.2 Alternative focal plane (method B) and camera OECF measurement. 5 6 Test cond
12、itions . 5 6.1 Temperature and relative humidity. 5 6.2 White balance (only applicable to colour cameras) 5 6.3 Infrared-blocking (IR-blocking) filter. 6 6.4 Focus 6 7 Input . 7 7.1 Focal plane log exposures. 7 7.2 Camera OECF chart log luminances. 7 8 Data analysis . 8 9 Presentation of results. 8
13、9.1 General. 8 9.2 Tabular presentation 9 9.3 Graphical presentation. 11 Annex A (normative) ISO 14524 camera OECF test chart 13 Annex B (informative) Relevance of the ISO 7589 spectral distribution index 20 Annex C (informative) Reporting of the camera OECF in relative reflectance units. 22 Bibliog
14、raphy . 23 BS ISO 14524:2009ISO 14524:2009(E) iv ISO 2009 All rights reservedForeword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO
15、 technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates cl
16、osely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Dr
17、aft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this doc
18、ument may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 14524 was prepared by Technical Committee ISO/TC 42, Photography. This second edition cancels and replaces the first edition (ISO 14524:1999), which has been technically re
19、vised. BS ISO 14524:2009ISO 14524:2009(E) ISO 2009 All rights reserved vIntroduction This International Standard establishes standard methods for measuring the functional relationship between the focal plane log exposures or scene luminances, and the digital output levels of a digital camera. This i
20、nformation is required for the development and testing of digital cameras, is used in other electronic still-picture camera measurement standards and may be helpful in the processing of digital image data. An opto-electronic conversion function (OECF) measurement standard is required for several rea
21、sons, as outlined below. a) Well-established measurement methods have been used to determine the characteristic curves for television cameras, where the characteristic curve is known as the “gamma correction” curve, and for silver halide photography, where the characteristic curve is known as the “H
22、 not logged) multiplied by system incremental gain at that level 3.9 maximum exposure limit smallest exposure which produces the digital output level corresponding to the maximum detectable exposure NOTE The maximum detectable exposure is also known as the saturation or quantization ceiling. 3.10 mi
23、nimum exposure limit largest exposure below saturation which produces an incremental output signal equal in magnitude to the output noise 3.11 opto-electronic conversion function OECF relationship between the log of the input levels and the corresponding digital output levels for an opto-electronic
24、digital image capture system BS ISO 14524:2009ISO 14524:2009(E) ISO 2009 All rights reserved 3NOTE If the input log exposure points are very finely spaced and the output noise is small compared to the quantization interval, the OECF can have a step-like character. Such behaviour is an artefact of th
- 1.请仔细阅读文档,确保文档完整性,对于不预览、不比对内容而直接下载带来的问题本站不予受理。
- 2.下载的文档,不会出现我们的网址水印。
- 3、该文档所得收入(下载+内容+预览)归上传者、原创作者;如果您是本文档原作者,请点此认领!既往收益都归您。
下载文档到电脑,查找使用更方便
10000 积分 0人已下载
下载 | 加入VIP,交流精品资源 |
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- BSISO145242009PHOTOGRAPHYELECTRONICSTILLPICTURECAMERASMETHODSFORMEASURINGOPTOELECTRONICCONVERSIONFUNCTIONSOECFS

链接地址:http://www.mydoc123.com/p-584460.html