(TSO NTERNATIONAL STANDARD 1073 / I INTERNATIONAL ORGANIZATION FOR STANDARDIZATION MEKAYHAPOAHA OPIAHW3ALIMSIO CTAHJAPTW3ALIWM.ORGANISATION INTERNATIONALEDENORMALISATION Alphanumeric character sets for optical recognition - Part ii : Character set OCR-B -- Snapes and dimensions of the printed image Jeuxalphanumeriquesdecaracterespourlareconnaissanceoptique Partie Il : Jeu de caracteres ROC-B -- Formes et cotes de I'image imprimee First edition -- 1976-12-01 Corrected and reprinted -- 1979-06-15 ISO 1073/lI-1976 (E) UDC 681.3.048 Ref. No. IS0 1073/II-1976 (E) Descriptors : data processing, optical recognition, alphanumeric character sets, OcR-B character sets, specifications, dimensions. Price based on 54 pages FOREWORD SO (the international Organization for Standardization) is a worldwide federation of national standards institutes (isO Member Bodies). The work of developing International Standards is carried out through ISo Technical Committees. Every Member Body interested in a subject for which a Technical Committee has been set up has the right to be represented on that Committee. International organizations. governmental and non-governmentat, in liaison with IsO, also take part in the work. to the Member Bodies for approval before their acceptance as International Standards by the ISO Council. Standard 1S0 1073/ll was drawn up by Technical International Committee ISO/Tc 97, Computers and information processing, and was circulated to the Member Bodies in May1975. It has been approved by the Member Bodies of the following countries : Australia Hungary Sweden Belgium Italy Switzerland Brazil ueder Turkey United Kingdom Czechoslovakia Netherlands Denmark U.S.A. New Zealand France U.S.S.R. Romania Germany South Africa, Rep. of Yugoslavia No Member Body expressed disapproval of the document. This International Standard, together with ISO 1073/l, cancels and replaces ISO Recommendation R 1073-1969. International Organization for Standardization, 1976 . Printed in Switzerland ISO 1073/II-1976 (E) INTERNATIONAL STANDARD Alphanumeric character sets for optical recognition 一 Part Il : Character set OCR-B - Shapes and dimensions of the printed image 1 GENERAL digits, capital and small letters, all the graphics specified in the IS0 7-bit coded character set (ISO 646-1973), national 1.1 Scope fetters, diacritical signs and further graphics. This International Standard for character shapes and sizes NOTES is intended to facilitate and foster the use of Optical For applications which involve circulation of documents across Character Recognition (OCR) in data processing, by defining boundaries between areas in which different national characters are in use, agreement between the sender and the recipient of the character shapes suitable for both human and machine documents is required. reading. 2 The metric and inch dimensions in this International Standard It establishes a common basis for printing equipment and are rounded and therefore consistent but not exactly equal. Either optical scanning equipment for OcR interchange appli- system may be used but the two should not be intermixed. cations. will not be able to produce sharp corners. Corners not specified as Additional International Standards will cover the print havingaspecificradiusshouldbeassharpaspracticable.However quality and the relevant characteristics of the formats it is not necessary for OcR purposes that the radii of the corners of thenominal printed imagebe less than0.08mm(0.0035in). needed to satisfy interchange requirements 1.2 Field of application 2 STYLES This International Standard specifies the printed image The OCR-B font (see clause 13) comprises 121 characters, shapes and sizes of atphanumeric characters, graphics and but, in general,only a subset will be used for a specific symbols designed for use in Optical Character Recognition. application. They are also suitabte for general purposes. The character shapes and dimensions are specified by refer- In order to