INCITS/ISO 1831 : 1980 : R2004
Current
The latest, up-to-date edition.
PRINTING SPECIFICATIONS FOR OPTICAL CHARACTER RECOGNITION
Hardcopy , PDF
English
01-01-2004
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0 Introduction
0.1 Interpretation of the International Standard
0.2 Use of the International Standard
0.3 Annexes
1 Scope and field of application
2 References
3 Spectral requirements
3.1 General
3.2 Spectral bands
4 Paper specifications for OCR
4.1 General
4.2 Luminous reflectance factor R[u] of paper
4.3 Dirt in paper
4.4 Paper opacity
4.5 Variation in reflectance of paper
5 Characteristics of the printed image
5.1 General
5.2 Print quality tolerance ranges
5.3 Definition of character outline limits
5.4 Measurements of parameters
6 Character positioning
6.1 General
6.2 Document reference edges
6.3 Character boundary
6.4 Character skew
6.5 Line boundary
6.6 Field
6.7 Horizontal positioning of characters within a line
6.8 Character alignment within a line
6.9 Printing area
6.10 Clear area
6.11 Margin
6.12 Line separation
6.13 Line spacing
Annexes
A Paper characteristics and measurements
B Characteristics of the printed image
C Computer-aided method (CAM) of print quality measurement
D Character positioning
Provides the basic definitions, measurement requirements, specifications and recommendations for OCR paper and print.
| DocumentType |
Standard
|
| Pages |
46
|
| ProductNote |
Reconfirmed 2004
|
| PublisherName |
Information Technology Industry Council
|
| Status |
Current
|
| Supersedes |
| Standards | Relationship |
| ISO 1831:1980 | Identical |
| ISO 2471:2008 | Paper and board — Determination of opacity (paper backing) — Diffuse reflectance method |
| ISO 216:2007 | Writing paper and certain classes of printed matter Trimmed sizes A and B series, and indication of machine direction |
| ISO 1073-2:1976 | Alphanumeric character sets for optical recognition Part 2: Character set OCR-B Shapes and dimensions of the printed image |
| ISO 2469:2014 | Paper, board and pulps — Measurement of diffuse radiance factor (diffuse reflectance factor) |
| ISO 1073-1:1976 | Alphanumeric character sets for optical recognition Part 1: Character set OCR-A Shapes and dimensions of the printed image |
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