Graphic technology — Prepress digital data exchange — Monochrome image data on magnetic tape

Specifies a format (requirements, header labels for DDES00, trailer labels for DDES00) for magnetic tape that will enable monochrome image data transfer between colour and monochrome electronic prepress systems manufactured by different vendors.

Technologie graphique — Échange de données digitales de préimpression — Données d'images monochrome sur bande magnétique

General Information

Status
Withdrawn
Publication Date
22-Jun-1994
Withdrawal Date
22-Jun-1994
Current Stage
9599 - Withdrawal of International Standard
Start Date
01-Feb-2005
Completion Date
01-Feb-2005
Ref Project

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ISO 10759:1994 - Graphic technology -- Prepress digital data exchange -- Monochrome image data on magnetic tape
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INTERNATIONAL
ISO
STANDARD
10759
First edition
1994-07-01
Graphit technology - Prepress digital
data exchange - Monochrome image data
on magnetic tape
Technologie graphique -
Echange de donnees digitales de
preimpression - Donnees d ’images monochrome sur bande magnetique
Reference number
ISO 107593 994(E)
---------------------- Page: 1 ----------------------
ISO 10759:1994(E)
Contents
Page

1 Scope ..............................................................................................

2 Conformance .............................................................................

Normative references ................................................................

.................................................................................

4 Definitions
.......................................................
5 Symbols and abbreviations
............................................................................
6 Requirements

61 . Basic requirement ..................................................................

62 . DDESOO tapes ........................................................................

63 . EU EF formats .........................................................................

64 . Non-UEF .................................................................................

.........................
. Specifying UEF, EUEF and non-UEF formats

. Padding of fields ......................................................................

. Utilization of User Header Labels ...........................................
........................................................
68 . I ntermixing tape formats
.......................................................
7 Header Labels for DDESOO
..... 3
.~.. “....~........D.~~. “~.....~~.~.~.~..~ ”.~ ”~..~.~...~..~
71 . General tape format

7.2 Header Labels . . . . . . . . . . . . . . . . . . . . . . ..~~.~.~ “~.~~~~.~.~... ““.~ “~.~. “.~~~.~.~.........~.

.. “..... s . . . . . . . ~.~~. “Y~.O~..D.S=i..:~~~~ 14
Data structure and interpretation
7.3
. . . . . . ..D.....ln.~..~......~..~~~...~.~~.~.~~~..~~~.~~.
8 Trailer Labels for DDESOO
.,..,... Y..,Dmw...T.a ‘l6
8.1 End of File Labels and End of Volume Labels
. . . . . . . .. “.......~......~~....~...~.....*.~~. ”...~.~~......~..~.
8.2 User Trailer Labels
0 ISO 1994

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced

or utilized in any form or by any means, electronie or mechanical, including photocopying and

microfilm, without permission in writing from the publisher.
International Organization for Standardization
Case Postale 56 l CH-l 211 Geneve 20 l Switzerland
Printed in Switzerland
---------------------- Page: 2 ----------------------
0 ISO ISO 10759:1994(E)
Foreword
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
technical committees. Esch 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 closely with the International Electrotechnical Commission
(IEC) on all matters of electrotechnical standardization.
Draft 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.
International Standard ISO 10756 was prepared by the American National
Standards Institute (as ANSI IT8.5-1990) and was adopted, under a special
“fast-track procedure ”, by Technical Committee ISOFC 130, Graphit
technology, in parallel with its approval by the ISO member bodies.
. . .
Ill
---------------------- Page: 3 ----------------------
@iJ ISO
ISO 10759:1994(E)
Introduction
The technical content of this International Standard is identical to that of
American National Standard IT8.5-1990. The ANSI document was circu-
lated for ISO approval as a fast track document at the request of the 1989
plenary meeting of lSO/TC130 and subsequent to its approval was re-
structured to be in accordance with part 3 of the lSO/lEC Directives. IT8.5
itself resulted from the joint efforts of an international industry group that
included participants representing all of the major prepress vendors in the
world. That group, initially identified as the DDES (Digital Data Exchange
Specification) Committee, later became the founders of the ANSI IT8
(Image Technology) accredited Standards committee which is responsible
for electronie data exchange Standards in graphic arts prepress.
The data formats are modeled on Standards ISO 10755 and ISO 10756.
---------------------- Page: 4 ----------------------
INTERNATIONAL STANDARD 0 ISO ISO 10759:1994(E)
Graphit technology - Prepress digital data
exchange - Monochrome image data on magnetic
tape
1 Scope

This International Standard specifies a format for magnetic tape that will enable monochrome image data transfer

between colour and monochrome electronie prepress Systems manufactured by different vendors.

2 Conformance

A DDES implementation shall be in conformance with this International Standard if it meets the requirements of

clauses 6 to 8 excepting those requirements specifically identified as non-UEF and EUEF. Non-UEF and EUEF, if

used, shall be written as specified but are optionally read.
3 Normative references

The following Standards contain provisions which, through reference in this text, constitute provisions of this

International Standard. At the time of publication, the editions indicated were valid. All Standards are subject to

revision, and Parties to agreements based on this International Standard are encouraged to investigate the possi-

bility of applying the most recent editions of the Standards indicated below. Members of ISO and IEC maintain

registers of currently valid International Standards.
ISO 7-bit coded Character set for information interchange.
ISO/1 EC 646: 1991, Information technology -

ISO 1001: 1986, Information processing - File structure and labelling of magnetic tapes for information inter-

Change.

I SO/I EC 1864: 1992, Information technology - Unrecorded 12,7 mm (0‘5 in) wide magnetic tape for information

(3 200 ftpi) Phase encoded and 356 ftpmm (9 042 ftpi),
in terchange - 32 ftpmm (800 ftpi), NßZl, 126 ftpmm
NßZl.

I SO/l EC 3788: 1990, Information processing - 9-track, 12,7 mm (0,5 in) wide magnetic tape for information inter-

Change using Phase encoding at 126 ftpmm (3 200 ftpi), 63 cpmm (1 600 cpi).

l SO 5652: 1984, Information processing - g-Track, 12,7 mm (0.5 in) wide magnetic tape for information inter-

Change - Format and recording, using group coding at 246 cpmm (6 250 cpi).
4 Definitions

For the purposes of this International Standard, the following definitions apply.

4.1 Digital Data Exchange Specification (DDES) : A method of sharing digitally encoded information between

cooperating Systems.
---------------------- Page: 5 ----------------------
0 ISO
ISO 10759:1994(E)

4.2 User Exchange Format (UEF): The basic features that a System should implement to be in accordance with

this International Standard.

4.3 Extended User Exchange Format (EUEF): Optional features that a System may implement in addition to the

UEF features.

4.4 non-UEF: Vendor specific features not defined in this International Standard.

4.5 decimal Point notation: The expression of a decimal number in a numeric field as a string of numeric

characters (lSO/IEC 646 positions 3/0 to 3/9), with optional decimal Point (lSO/IEC 646 Position 2/14 - full stop).

5 Symbols and abbreviations
The following Symbols and abbreviations are used in this International Standard:

BP . Byte Position within a label. For ease of use with ISO 1001 I byte positions Start at 1.

L: Length of field in number of byte positions.
SPACE or b: The Character coded in Position 2/0 of ISO/IEC 646.
ZERO: The Character coded in Position 3/0 of ISO/IEC 646.
6 Requirements
6.1 Basic requirement
UEF version 03 is the basic requirement for exchange of monochrome images.
6.1 .l Monochrome pictures

The monochrome picture data to be interchanged under UEF version 03 shall consist of a rectangular array of

picture elements ( “Pixels ”) with varying grades of intensity of a Single colour, encoded as specified in 7.3.1. The

intended effect is to reproduce the monochrome picture using various levels of the specified image colour.

6.1.2 Binary pictures

The binaty picture data to be interchanged under UEF version 03 shall consist of a rectangular array of picture el-

ements ( “pixels ”). Esch Pixel shall be either a solid or transparent image or background colour as specified in

7.3.2.

NOTE 1 Th or requir ‘ement regarding the origin or the nature of the binary picture. Typical ex-

ere is no further ass umption

amples includ phs, sca nned line art Originals or some forms of rasterized text or geometric data.

e scre ened photogra
6.1.3 Binary line art

The binary line art data to be interchanged under UEF version 03 shall consist of a rectangular array of picture el-

ements ( “Pixels ”) each of which shall be either a solid or transparent image or background colour encoded as

specified in 7.3.3.

NOTE 2 The binary line art image is further characterized by having continuous areas sf many Pixels of either image and

background colour, and not simulating a greater range of tonal values by “dithering” or “error diffusion” techniques. The spatial

Information is therefore amenable to run length encoding techniques, which may reduce file size and allow for faster pro-

cessing.
---------------------- Page: 6 ----------------------
0 ISO
ISO 10759:1994(E)
6.2 DDESOO tapes

When the tape is identified as DDES (BP 44-47) version 00 (BP 50-51) in the Volume 1 Header, then the tape shall

be written as specified in this International Standard. No other values are permitted in UEF or EUEF fields. The

only fields available for non-prescribed use are the fields with contents “resen/ed for System use (vendor use)”

and vendor UHLs (BP 04-80). All other fields shall be written as described in this International Standard or as in

ISO 1001.

Where fields are not defined in this International Standard, ISO 1001 shall be used.

DDES tapes shall be written at 1 600 bpi Phase encoded or 6 250 bpi GCR, in accordance with lSO/IEC 3788 or

ISO 5652 respectively, on media as specified in ISO/IEC 1864.
6.3 EUEF formats

Use of the extended implementation EUEF fields and values is optional. However, only those code s spe cif ied

this International Standard shall be used.
6.4 Non-UEF

Non-UEF fields and values shall also be specified within DDES. These fields and values shall be restricted in use

in the same manner as EUEF fields and values.
6.5 Specifying UEF, EUEF and non-UEF formats

BP 05-10 of UHLl shall be used as the UEF indicator. This field shall be coded as indicated in 7.2.4.

6.6 Padding of fields

Any numeric fields shall be right-aligned and ZERO padded, and any alphanumeric fields shall be left-aligned and

padded with SPACEs.
6.7 Utilization of User Header Labels

UHLl, UHL2, UHL3, UHL4 and UHL5 are currently specified in this International Standard. Up to 24 additional

UHLs are reserved for use in UHL2: up to six additional for future DDES use (BP 31), up to nine for other future

use (BP 32), and up to nine for vendor use (BP 33). DDES UHL values (BP 04) shall be unique and in Order. The

values “1 ” to “9 ”, ‘IA” and “B” shall be reserved for DDES use.
68 . Intermixing tape formats

Different UEF magnetic tape file formats may be found on the same DDES tape and/or volume set. A DDES

magnetic tape may also contain EUEF as well as non-UEF file formats.
7 Header Labels for DDESOO
The following subclauses describe the DDES use of ISO 1001 tape format.
7.1 General tape format

Table 1 gives the format for two monochrome image files on one tape. Table2 gives the format for two

monochrome image files on two tapes. This International Standard supports multiple tapes in a file set as de-

scribed in HDRl, including the splitting of an image file over multiple tapes.
---------------------- Page: 7 ----------------------
ISO 10759:1994(E)
Table 1 - Format for two monochrome image files on one tape
File Header Label 2 of the following file
User Header Label 1 of the following file
User Header Label 2 of the following file
User Header Label 3 of the following file
User Header Label 4 of the following file
User Header Label 5 of the following file
Additional UHLs may be specified in UHLZ (BP 31-33)
Logical tape mark
IMAGE FILE 1
End of File Label 1
End of File Label 2
User Trailer Label 1
User Trailer Label 2
User Trailer Label 3
User Trailer Label 4
User Trailer Label 5
A UTL for each UHL is to be included on the tape. These are not required
to be read. UTLs follow EOVZ and EOF2. These are copied from the pre-
User Header Label 3 of the following file
User Header Label 4 of the following file
User Header Label 5 of the following file
Logical tape mark
IMAGE FILE 2
End of File Label 1
End of File Label 2
User Trailer Label 1
User Trailer Label 2
User Trailer Label 3
User Trailer Label 4
User Trailer Label 5
Logical tape mark (logical
---------------------- Page: 8 ----------------------
ISO 10759:1994(E)
- Format for two monochrome image files on two tapes
Table 2
First tape
Physical tape mark (beginning of tape)
BOT
Volume Header Label
VOL1
HDRl File Header Label 1 of the following file
HDRZ File Header Label 2 of the following file
UHLl User Header Label 1 of the following file
UHLZ User Header Label 2 of the following file
UHL3 User Header Label 3 of the following file
UHL4 User Header Label 4 of the following file
UHL5 User Header Label 5 of the following file
TM Logical tape mark
****
IMAGE FILE 1
image data
Logical tape mark
End of File Label 1
EOFl
End of File Label 2
EOF2
UTLl User Trailer Label 1
UTL2 User Trailer Label 2
UTL3 User Trailer Label 3
UTL4 User Trailer Label 4
UTL5 User Trailer Label 5
TM Logical tape mark
HDRl File Header Label 1 of the following file section
File Header Label 2 of the following file section
HDR2
UHLl User Header Label 1 of the following file section
UHL2 User Header Label 2 of the following file section
UHL3 User Header Label 3 of the following file section
UHL4 User Header Label 4 of the following file section
UHL5 User Header Label 5 of the following file section
TM Logical tape mark
****
IMAGE FILE 2 Section 1
image data
Physical tape mark (end of tape)
EOT
TM Logical tape mark
EOVl End of Volume Label 1
EOV2 End of Volume Label 2
UTLl User Trailer Label 1
UTL2 User Trailer Label 2
UTL3 User Trailer Label 3
UTL4 User Trailer Label 4
UTL5 User Trailer Label 5
TM Logical tape mark
Logical tape mark (logical end of tape)
---------------------- Page: 9 ----------------------
ISO 10759:1994(E)
User Header Label 2 of the preceding file section
User Header Label 3 of the preceding file section
User Header Label 4 of the preceding file section
User Header Label 5 of the preceding file section
Logical tape mark
IMAGE FILE 2 Section 2
End of File Label 1
End of File Label 2
User Trailer Label 1
User Trailer Label 2
User Trailer Label 3
User Trailer Label 4
User Trailer Label 5
7.2 Header Labels

The following subclauses specify the Header Labels for DDESOO UEF03 tapes. There shall be no optional formats

or fields in DDESOO except as specified.
7.2.1 Volume 1 Header (VOLl)

Table3 gives byte Position, field name, length in bytes and content for the Volume 1 Header.

The sequence number of tapes in a volume set shall Start with “01” and be incremented by 1 for each tape in the

set as specified in BP 48-49.
---------------------- Page: 10 ----------------------
ISO 10759:1994(E)
Table 3, - Volume 1 Header
(VOLl)
Field name L Content
01-04 label identifier and number 4 “VOL1 ”
05-10
volume identif ier 6
volume accessibility 1 SPACE
12-37 reserved for ISO 1001 use
26 SPACEs
38-43 creation date (ISO 1001 format)
44-47 DDES identifier 4 ” DDES”
sequence number of tape in volume set 2
48-49
50-51 DDES Version 2 "00"
52-79 reserved for ISO 1001 use 28 SPACEs
80 label Standard Version 1
7.2.2 File Header Label 1 (HDRl)

Table 4 gives byte Position, field name, length in bytes and content for the File Header Label 1.

The contents of file identifier (BP 05-21), generation number (BP 36-39) and generation Version number (BP 40-41)

tan be different between different operating Systems. These fields are not intended for use in

intervendor systems
communication.

The file set identifier (BP 22-27) does not contain a job name for DDES. The job name shall

be contained in the
User Header Label 1 (see table6).

When the date is not defined, SPACE followed by five ZEROS or alternatively six ZEROS shall be used (see

BP 48-53 in table4).
Table 4 - File Header Label 1 (HDRl)
BP Field name L Content
01-04 label identifier and number
4 “ HDRl ”
05-21 file identifier
22-27 file set identifier
28-31 file section number
32-35 file sequence number 4
36-39 generation number
40-41
generation Version number 2
42-47 file creation date 6
48-53
file expiration date (optional) 6
file accessibility 1 SPACE
55-60 block count
6 ZEROS
61-73
reserved for System use (vendor use) 13
74-80 reserved for ISO 1001 use
7 SPACEs
7.2.3 File Header Label 2 (HDR2)

Table 5 gives byte Position, field name, length in bytes and content for the File Header Label 2.

---------------------- Page: 11 ----------------------
0 ISO
ISO 10759:1994(E)

BP 16-50 (System use/vendor use) shall be for individual use of the vendors and not for intervendor Systems

communication.
Table 5 - File Header Label 2 (HDR2)
Field name L Content
I I
4 “HDRZ”
01-04 label identifier and number
1 ” F”
05 record format = fix
...

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