This standard specifies a magnetic tape recording format that can be used to transfer line drawing image data between color electronic prepress processing systems produced by different manufacturers. GB/T 17156.3-1997 Printing technology Prepress data exchange Color line drawing data on magnetic tape GB/T17156.3-1997 Standard download decompression password: www.bzxz.net
This standard specifies a magnetic tape recording format that can be used to transfer line drawing image data between color electronic prepress processing systems produced by different manufacturers.

B/T17156.3
This standard is equivalent to the use of IS010756:1994 Printing Technology-Prepress Data Exchange
The equivalent conversion work follows the principles of fidelity, limited scope and inheritance. Color line drawing data on magnetic tape.
This standard is formulated to specify the unified exchange format when exchanging color line drawing data on magnetic tape between electronic prepress processing systems produced by different manufacturers, so that different devices can be connected or networked with each other. This standard is proposed by the Press and Publication Administration of the People's Republic of China. This standard is under the jurisdiction of the National Printing Standardization Technical Committee. The drafting unit of this standard: Huaguang Jixi Printing System Co., Ltd. The main drafter of this standard: Fu Guoxi
GB/T 17156.31997
ISO Foreword
ISO (International Organization for Standardization) is a world-wide specialized standardization organization composed of national standardization bodies (ISO (member bodies)). The work of developing international standards is done by ISO technical committees. All member bodies have the right to participate in the work of a committee if they are interested in a standard subject that has been approved by a technical committee. International organizations (governmental or non-governmental) that maintain contact with ISO also participate in the relevant work. ISO maintains a close cooperative relationship with the International Electrotechnical Commission (IEC) in the field of electrotechnical standardization. The draft international standard proposed by the technical committee is submitted to the member bodies for voting. The international standard needs to obtain the approval of at least 75% of the member bodies that must participate in the voting before it can be formally adopted. International Standard ISO 10756 was developed by the American Standards Association (the American standard code is ANISIT 8.2-1988). It was adopted by the ISO/IEC 3000 Technical Committee using the fast track review method, and was approved by the ISO member body. The technical content of this international standard is related to the national standard [T8.2-1988]. The ANSI text was distributed as a fast-track document to IS0/TC:130 members for comments. After comments were solicited, the text was adjusted according to the first part of the IS0/IECI Working Guidelines. I8.2 is the result of the joint efforts of an international industry organization that includes all of the world's major prepress equipment manufacturers. The industry organization was originally called the DDES (Digital Data Exchange Standards) Committee. Later it became the founding name of the ANSI I8 (Image Technology) Standards Committee, which is responsible for the electronic data standards in the prepress industry. The data formats in this standard are based on the international standard ISO 10755.1 Scope National Standard of the People's Republic of China Graphic lechmology Prepress digital data exchange Colour lineari data on magnetic tape GB/T 17156. 3 --1997 IDT ISO 10756:1994 This standard specifies a magnetic tape recording format that can be used in different formats! Color cores produced by various countries are used to transmit line abstract image data between prepress processing systems.
2 Conformity requirements
All IS standards that meet the requirements of Chapters 6 to 8, except for the special requirements of NiII-UEF, should be consistent with this standard. Films using Ncm-LEF and ELUIEF should be selectively readable by people in the prescribed manner. 3 Cited standards
The provisions contained in the following standards become the provisions of this standard through citation in this standard. When this standard is published, the versions shown are valid. All parts of the standards will be revised. The parties using this standard should discuss the possibility of using the latest versions of the following standards. GB198889 Information Processing Information Interchange Bit Code Set (e1V1S0) 646: 1983) GI6550-8 Information Processing Information Interchange 9 Track 12.7mm Width 63 Lines/mm Modulation Recording Magnetic Tape (e9YIS0/IEC3788: 19763
GB 757487
Information Processing Information Interchange H Magnetic Tape Labeling and File Structure (V01001: 1979) G13 9716-88 Information Processing Information Interchange 9 Track, 12.7InIm (0.5in) Recording Magnetic Tape 32[tprmrE (800fipi) NRZ1 System, 126ftpmm (3200ftpi) Phase Modulation System and 356ftptnn (90:124ftpi) NPZ1 (idt IS() 186t :1985)
GH 9363--88
Information Processing Information Interchange 9-channel 12.7 mm (0.1 in) tape block encoding 246 cpInm1 (6250-pi) format (er1S0) $652:1984) 4 Definitions
This standard uses the following definitions.
4.1 Digital Data Exchange Standard Digital Data Exchange Standard (DDES) A method for sharing digitally encoded information between cooperating systems. 4.2 User Exchange Format The basic format that a system should implement to meet the requirements of this standard. 4.3 Extended User Exchange Format An optional format that a system can implement in addition to UFF. 4. Unified Interchange Format Nari-UEF
Approved by the State Administration of Technical Supervision on December 16, 1997, and implemented on August 1, 1998
GR/T17156.3-:1997
This standard does not define the format defined by the manufacturer. 4.5 Decimal notation Decimal point tralin In the numeric field, a 1-digit number is represented as a string of digits (positions 3/0 to 3/9 in GB1988), with an optional 1-digit decimal point (positions 2/14 in GB1988). 5 Symbols and abbreviations
This standard uses the following symbols and abbreviations: P: indicates the position of the missing digit. To be consistent with G1988. Byte position. L: The length of the segment is expressed in digits. Space or \b": The coded character at position 2/0 in G31988. 0: The coded character at position 3/0 in 1988. 1h: 16-bit, represented by the digits 09 and letters A to F followed by lowercase \h\ (for example: 3F6Ah), 6 General requirements
6. 1 Basic requirements
UEF version 1 is not the basic condition for the exchange of color line drawings. The line drawing data exchanged in UEF version 1 is a matrix, and each pixel is stored in a color table. These colors are defined in a color table, which specifies the value of the color separation component for each table entry. Note: The characteristic of a line drawing image is that it has a continuous area composed of alternating color pixels. It is not possible to simulate a large range of colors using "dithering" or "differential" technology: this space information is nearly 1 line: selective encoding (Lrg:lrneoling technology) to shorten the file length and speed up the processing. To be more clear, line drawings The point of the file is the limited number of colors in a large range. It is not a matter of measuring the number of light, but of providing target position information. This specification neither assumes nor implies the position information of the image. 6.2 DDES90 Microstrip
The beginning mark of the volume 1 determines whether the tape is DDES (BP44~47) 00 version (RP50~51) - the tape should be used in the manner specified in this standard. No other values ​​are allowed in the LEF or ELIFF fields. The fields that can be used for technical pre-description purposes are "system reserved fields () commercial) \ and manufacturer's UII1 (RP0--80). All other fields shall be written as specified in this standard or in B574. Fields not defined in this standard shall be written as specified in R7574 or in H9716 for media. [DES tapes shall be phase coded at 1600 bpi as specified in G136550 or burst coded at 6256 bpi as specified in GR9363 et al. respectively.
6.3 The use of EEF format (Extended Interchange Format or) Extended EUEF fields and values ​​is optional, but the codes specified in this standard shall be used. 6.4 Nan-UFF (Non-Interchange Format) Nan-LEF fields are also specified in IES, and the use of these fields and values ​​is the same as that of the following fields in IES. 6.5 Specification of User Band Identifier (IHI) for LEFELTEF and NonCEF formats.1) [3F0;-~10 is used as the IEF mark, these characters should be encoded according to the method described in 7.2.4. 6.6 Segment completion
Any numeric segment should be aligned to the left and filled with "\", any character segment should be aligned to the left and filled with "\". 6. Use of header identifiers
In this standard, UI.1, UI.2, UIHI.3 and UIHI.1 are defined in the first LIL. In LIL2, 25 additional LHLs are reserved for use: 1 is reserved for FS in the future (BP11, BP31), 9 are for other purposes in the future (BP32), and 9 are reserved for vendor use (BP33). The values ​​of IFSLI[L (I3PO) are quasi-unique and ordered, with values ​​from 1 to 1, and A and B are reserved for DTFS use. 6.8 Combined tape formats
There can be different LEF file formats in the same DDES ministrip or reel set. Can an ES tape also contain EUII and Non-ELEF file formats?
DDES00 header identifier
GB/T 17156.3
The following clauses describe how DDES uses the H7574 tape format. 7.1 General tape formats
Table 1 shows the format of two line drawing files on one tape: Table 2 shows the format of two line drawing files on two tapes. This standard supports the format of one set of files occupying multiple tapes. The decomposition of line drawing files onto multiple tapes is described in 1.
Table 1 shows the format of two line drawing files on one tape
Physical tape identifier (tape start)
Confidential header identifier
Next-file recipient identifier 1
Next file recipient identifier 2
Next file production tape identifier 1
Next file user tape identifier!
The following is the product identification 3
The following is the most technical identification 4
In 2 our 3 court's government
Logical magnetic book mark
Line killing tracking data
Logical shaking tape certification
File station to mark】
Text station policy mark 2
Sichuan wide band tail mark proposal "
User band tail mark"
User band mark 3
Line drawing file!
Use the broad section mark:
Sheng bring the previous one! There is a pair of these marks that do not need to be read LFTL. Immediately after E)V2 and HF? - it is T:III, copied from the previous one (no, 8. 1) Reverse tape mark
The file gate mark of the next file:
The next file mark 2
The next file's tape header mark
The next file's tape header mark 2
The next file's tape header mark 3
The next file's tape header mark 1
Logical tape mark
Line function modulation
Twisted tape mark
File end mark!
File history mark 2
Line drawing file station
GR/T 7156. 3
Table 1 (end)
Physical tape mark (tape start)
Volume beginning mark
User\tape end mark 1
User tape end mark 2
User tape end mark 3
Tape end mark
Reverse tree tape mark
Logical tape mark (logical sense end)
Physical microstrip mark (magnetic kidney end)
Table 2 Format of two line drawings on two tapes The first line
physical magnetic strip mark (beginning of tape)
volume mark
file identifier
file header identifier 2
file header identifier 2
file user header identifier
file user header identifier 3
file user header identifier 1
sequence Tape mark
Image number
Edit tape mark
File end mark 1
File end mark 2
User end mark 1
User end mark 2
User end mark 3
User end mark 1
Logical tape record
Line recording
File start mark of next file segment 1
! File start mark of next file segment 2
User end mark of next file segment!
Next file segment start mark 2
Next file segment user mark 3
User end mark of next file segment 4
7.2 Start mark
GE/T 17156. 3
Table 2 (end)
Physical tape mark (beginning of tape)
Volume label
Logical tape mark
Line image data
Line image file 2-1st section
Physical tape mark (end of tape)
Logical tape mark
End of volume mark E
End of volume mark 2
Use User tape identifier 1
User tape identifier 2
Tape tail identifier 3
User tape tail identifier 4
Logical tape recorder
Physical tape mark (logical end)
Second tape
Physical tape mark (start of magnetic section)
Preamble identifier
Next file segment file identifier 1
Next file identifier?
Previous file user tape mark 1
1 Previous file segment user tape mark 2
Previous file segment user tape mark 3
Previous file segment user tape mark 4
Next file segment user tape mark
Regular image data
Logical tape mark
File end mark 1
File end mark 2
\ Tape mark
Useful tape mark 2
User tape mark 3
User guide mark 1
Super tree tape mark
Document file 2
Logical tape mark (logical tape structure) Physical tape mark (micro-tape structure)
GB/T 17156.3--1997
The following sections define the tape header identifier for DDES00OUFFO1. Except as specified here, there shall be no optional characters or fields in 1DESO\|tt||7.2.1 Volume Header 1 (VOL1)
Table 3 defines the byte position, field name, field length and content of the volume header identifier! The tape sequence in the same replacement group is specified in BP4849, starting from "0\ and increasing by 1 for each tape. Table 3 Preface identification 1
38--43
51--47
52---79
Identifier and sequence number
Volume identifier
Applicability
is GE 7574 Warranty
Section name
Construction period (C 7374 format)
DUES F identifier
The sequence number of the tape in the volume matrix
11:5 The version number
is G 7574 1.2.2 File header 1 (11) The byte position, field name, segment length and content of the file header 1 are specified. The internal structure of the file identifier (P05-21), code (1P3639) and version number (BP40~41) can be different in different operating systems. These characters are not used for communication between different systems. File identifier (HP22~27) The well does not include the job name of the DDES. The job name is included in the user's first identifier 1 (see Table 63.
When the period is not defined, the corresponding section uses: the number of characters after the limit of five or six (see P4853 in Table 1) Table 1 Label (HIR)
n1--04
03-~:1
22~-37
32--35
36·-39bzxZ.net
42--47
48-~5:
53 --60
74·80
Identifier and sequence number
File identifier
File name identifier
File sequence number
Generation
Generation version number
File creation date
Segment name
File expiration date (optional)
File accessibility
Block count
Reserved for system (! Commercial use)
Reserved for GB7574
7.2.3 File header identifier 2 (I[DR2)
This table specifies the byte position, field name, field length and content of file identifier 2. The content
BP16~-50 (system use/! use) is provided for each! For use by the vendor itself, not for communication between vendor systems. BP
0:-~0t
06～1G
16--50
53--BC
Marker and sequence
Record type fixed length
Block length (UEF fixed)
GB/T 17156.3--1997
Table 5 File header protocol 2 (HDR2)
Segment name
Record length (LEF fixed)
Secrecy system (manufacturer specified)
Secrecy length
GB7574 reserved
7. 2. 4 User tape header 1 (UIIL1> length
Table G specifies the byte position, field name, field length and content of the user tape vendor identifier 1. 3P05~10 is the mark of FF. There are the following cases:\I:EFb?1\
User interchange format for color line drawings:
\EUEFOI\·Extended UEF file·
"bhbbu}\
Non-UEF text.
All other names should be reserved for future use.
\HUR2"
\08192\
"08192\
BF11~30 reserved for use" is the name of the vendor who issued this tape. Each vendor should use a dedicated name, Table 6, and the "band header identifier"
05--- 10
11-~ 30
31~-40
61--80
Identifier and serial number
UEI mark
! Trade name
Job name
Graphic name
Segment name
7.2.5 User Band Identification 2 (UIIL2)
This specification specifies the name, length and content of the user band identification 2 segment. BP25-~28 specifies the following types of tape 1. The types are:
Color image (reserved for other uses in S)\OU1\——Line drawing (UEF)
"0002\—Geometric figure (reserved for other uses in 1313ES)\o0r~_\o0y\
Reserved for II>ES Future use
*[1099" - For trader use
1\
BP31, BP32 and BF33 specify the number of LHLs on the tape, the order is first all TT)FS LHLs, then all 1HILs for "future use", and finally all 1HIs for trader use. This order has nothing to do with the identification number of each UHL. The numbers or letters in the identification sequence segment (BP4) have no special meaning and no specific order (except for the DDES UIHL defined in 6 and 7): BI3-1-35 indicates the number of blocks before the start of the color table in the file. Manufacturers can use this area for special purposes: The values ​​of RP36~80 are currently in the room format.
01--04
(5--24
29--30
31~-36
Identifier and sequence number
Department name
File type
CB/T 17156.3 1997
User identification 2
Segment name
Reserved for system users)
Additional DIDES HL number, currently -- 2 (UHL3 and UHI.4) Other UHL for future use Number of H
Manufacturer ITL. Number (manufacturer determined)
Offset to the start of the data stream (number of blocks determined by the manufacturer) Reserved for future use by IDES 1
Header Identifier 3 (UIHL3) (Parameter Area) Table 8 defines the byte position, field name, segment length and content of the User Header Identifier 3. 7.2.6.1 Data format
Let 05-0F be 30 capsules to show the color cutting figure data table 8 user with 100 labels 3
Ningdian name
65--06
n7---08
13~~24
25-·28
43--52
53--58
59--61
65~-74
Identifier and sequence number
Data format
Color separation version number
Color sequence (first part!
Color sequence (second part), UEF total space, EIHF UY dot value
Byte value of 100% dot
Line length (pixel line) (expressed as a binary decimal, in millimeters) Area width (expressed as a binary decimal, in millimeters) Number of pixels per line (length)
Line width (width)
Line direction resolution unit (optional)
"1\="M\-"M\-"M\-"M\-"Number of pixels per meter
\"Number of pixels per meter
"Number of pixels per meter
"Number of pixels per meter
"Number of pixels per meter (optional) Resolution of the line (pixel) expressed as a binary decimal (optional) Resolution of the line (pixel) expressed as a binary decimal (optional) 7. 2..6. 2
\cco1\
The color sequence should be "YMCK\ to \CMYK\, and should be specified in F09--12 of LHIL3. In UFF, IP13-~24
GB/T17156.3-:1997
EUEF is a call selection function that can handle up to 16 colors in various color sequences according to the definition of KP07~24 of calcium UHL3. The valid input value of the color separation version field P07~08 should be "01\ to *16", representing one to sixteen colors. The valid input of the color sequence field can be any of the following sequences: \Y" "M" \\ "K" yellow, magenta cyan and black inks \R", \G\, "B\ red, green, blue color; \t.\\V\\L\
(IF1976 projection color UV* and brightness (Y), "1" to "9" user-defined color or color separation version, such as pink, etc.; \Q" - there is a tape, but it is ignored.
Color descriptors should be continuous , left-aligned and padded with cells. 7.2.6.3 Color Values ​​
The color value range is placed in the bytes representing the pixels of the UH1.3 plate. It is linearly related to the percentage of the printed dots. These bytes are unsigned and can be any value between (1~255). The relationship between these word values ​​and the color values ​​(step difference, slope and intercept) is determined by the creator of the file. All color separations in the same file must be the same: this can be defined by filling in the numeric characters in T3P25~2 and BP29~32 of UH1.3 (according to B1988) with the section values ​​corresponding to % and 100% dots. Figure 1 further illustrates the calculation relationship of the color value range. The value of % dot is 20 and the value of 100% dot is 220. 7.2.6.4 Orientation of Line Drawings
The length and width of the line drawing are in 1JH1.3 P33~6, Figure 2 shows the relationship between these parameters and direction (BP65~66). The position and direction of the arrow represent the first data line of the file on the tape. The length is the length of the -th data line of the line drawing file, and the width refers to the distance of the line distribution, (0 year 220
the first (0%-20
data value
Figure 1 Example of color value conversion
LEF orientation is specified as follows (see Figure 2): "\00" horizontally from the upper corner (UFF) "01\=vertically from the upper left corner (UEF) "02 horizontally from the lower left corner (UEF)
\03" horizontally from the lower left corner (U EF)
UEF requires that it can write in at least one orientation, and we can read in all four orientations. The EEF orientation is specified as follows (same method as UEF, see Figure 2): "04" - horizontal loading from the upper corner (optional) "05" - vertical loading from the upper right corner (optional) *16" - horizontal loading from the lower right corner (optional) \07" - vertical loading from the lower right corner (optional) "08" - three-way orientation (optional)
7.2.6.5 Resolution
GB/T 17156.3—1997
Relationship between the first line number, image orientation and UEF reception code C3
[JHI,3] HP67~80 in the HIJFF field specifies the ratio between the length and width. Table 9 specifies the byte position field name, field length and content of the user band header identifier 4. BP05--08 specifies the highest color number in the color table and data. BP09-20 specifies the provisions of the EUEF extended coding scheme described in 7.3.3r. BP9~12 indicates the number of digits of the title color number, 13P13-~16 indicates the number of digits of the short run, and 3P17~2U indicates the number of digits of the extended run, from 1 to 15. For T:EF, 3P09~12 is equal to 8, 13-~16 =8. If the long format is not used, I-17-~20 is equal to 0. If long format data may exist, I-13P17--20 is equal to + 16.
7.3 Data Structure
The data structure on the tape consists of a color table and one or more blocks of run-length coded data describing the line graph. The color table defines the bit values ​​for various color codes.
Table 9 Used in production tape identification 1 (LHIL4)
01--04
05~-G8
17--20
Marked with symbol and serial number
Name of school section
The most significant color number used (1 ~-255) The number of digits of the additional color number
The number of digits of the short run
Extended run length number
Protection)ES Future expansion
7.3.1 Color table
\UIIL4\
\OOR"
\0008\
The color table establishes the relationship between the color number in its numeric entry and the corresponding color value. This table is in a data block with a fixed length of 8192 bytes. This data block is the first data block after the manufacturer data block. It consists of 1 to 256 2-byte table entries, followed by a binary \"until the end of this block. The H structure is shown in Table 10. Table 10
Color table representation
Color number
Purpose description
Reserved for transparent color
Single color description
The color with color number is always a transparent color. For the color with color number or any color equivalent to transparent color, the color value in the color table is for manufacturer (system) use and is treated as non-printing color. Each color number must be sorted in a fixed order from 0 to 255 and placed in a fixed position in the color table, that is, color 1 should be the second item in the color table, and color number 1 should be the first item in the color table. And so on.
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