GB/T19474 This part specifies the image quality of microforms produced by graphic COM recorders using the test patterns specified in GB/T19474.1-2004. This part applies to graphic COM recorders capable of recording characters and graphics on black-and-white film. GB/T 19474.2-2004 Microfilming Quality Control of Graphic COM Recorders Part 2: Quality Requirements and Control GB/T19474.2-2004 Standard Download Decompression Password: www.bzxz.net
GB/T19474 This part specifies the image quality of microforms produced by graphic COM recorders using the test patterns specified in GB/T19474.1-2004. This part applies to graphic COM recorders capable of recording characters and graphics on black-and-white film.
class="f14" style="padding-top:10px; padding-left:12px; padding-bottom:10px;"> GB/T19474 consists of two parts:
- Part 1: Characteristics of test images; -
Part 2: Quality requirements and control.
This part is the second part of GB//T19474-2004, and it is modified to adopt ISO11928-2:2000 "Quality control of microfilm graphic COM recorders Part 2: Quality requirements and control" (English version). Compared with ISO11928-2:2000, the main differences between this part and ISO11928-2:2000 are as follows:
- The foreword in ISO11928-2:2000 is deleted, and the foreword of this part is compiled;
- The national standards GB/T6159.1-2003, GB/T6159.4-2003, GB/T6159.6-2003, GB/T19474.1-2004 cited in the normative reference documents of this part
are modified to adopt international standards; GB/T6159.5-2000,
GB/T6159.7--2000 and GB/T6161-1994 are equivalent international standards;
- Delete the catalog in ISO11928-2:2000;
- Replace this part of ISO11928 in ISO11928-2:2000 with this part of GB/T19474-2004 or this part;
- Replace the comma as a decimal point with the decimal point symbol.
Appendix A of this part is an informative appendix.
This part is proposed and managed by the National Technical Committee for Standardization of Document Imaging Technology (SAC/TC86).
This part was drafted by the First Branch of the National Technical Committee for Standardization of Document Imaging Technology.
The main drafters of this part are Qian Yi, Chen Jing, Liu Dingjun and Liu Peiping.
The clauses in the following documents become the clauses of this part through reference in this part of GB/T 19474. For all referenced documents with dates, all subsequent modifications (excluding errata) or revisions are not applicable to this part. However, parties to agreements based on this part are encouraged to study whether the latest versions of these documents can be used. For all undated referenced documents, the latest versions are applicable to this part.

GH/F12474 weekly part group or
Part 1: General test screen will be marked
Part 2: Quality and control:
GR/T19474.2-2004
into the Ministry of GB/! 44-2304 Section 2, modified to adopt 15 (11282: 2UU0) microfilm technology graphics [record only the quality of the year etc. 2 points: quality and control 3 English version 1 This part and [S0: 1928-2: 20r and compared, the following are prohibited:
Institute of System 13): 1928.2: 2663 in, the system This part of the standard is called the same national standard B51.-2003, G:61594-00, G/T:34.-203. T474, 1-20 is the modified international standard; 659, 659-2, 37T6:53.7-200G13/T51G1-1961 is the equivalent international standard 151142823:
Use G1047--1 this part or "this part" to represent 1501528-2200 or 15128 this part; use the small period symbol "" instead of the comma as the effective period: This part refers to the material requirements.
This department is the National Document Imaging Technology Standardization Technical Committee (ATC) and is under the jurisdiction of the National Document Imaging Technology Standardization Technical Committee. It is the branch committee of the National Document Imaging Technology Standardization Technical Committee. Part 8: Quality control and quality improvement. 1
1 Scope
Microfilm technology
Quality control of graphic OM recorders
Part 2: Quality requirements and control
CE/T19474.2—2004
C5/T19 This part specifies the recording of micro-products using test screens specified in G/T 14?4.--204. The following part applies to recording of images and graphics on white paper. 2 Normative references The following clauses are incorporated into this part through reference to this part of B/174. For references with a date, all subsequent amendments (other than those specified in parentheses) or revisions do not apply to this part. However, Parties that have reached an agreement based on this part may continue to use the versions of these documents. For any referenced document without a date, the latest edition shall apply to the meeting.
/6153.1—2003 Photographic technology Part 1: Numerical terms (1S06135199.M0D%/6:4—2(3 Microphotographic technology vocabulary Part 4: Material and packaging (ISO196-4:1928, M01) Microphotographic technology vocabulary Part 1: Image quality, readability and quality control (TS GP/ TG:54.5-—306a
5:1937)
G515—233 Micrographics: Part 1 (616:199MGB:T659.?-2 Vocabulary of Micrographics Part 7: Computer Micrographics (cgVIS6196-7sabzxz.net
(13/T61611SS1 Micrographics No. 2 - Characteristics of Micrographics and Its Application in Micrographics (e9VI50) 33.5:1989)
GI/1 :S444-001
Safety film (t)
(F/T.3:74.1-2014 Quality control of photographic technology graphic OM recorder; Test screen characteristics
(IS1126-1:2300.MOD
1505-2:199 Photography
Part 2: Avoidance of radiation ||18053:1005 Digital imaging - Density measurement - Part 3: Light conditions 3 Terms and definitions
GBT6159.12503.GB/T6159.:2003GBT61ES.52300GB/T6159.72300 Bowl stand agent terms and definitions 3/11947 postal code
Tide test surface testframe
In 4 Evaluation
4.1 General
The evaluation of the quality of graphics M is a complex work. Graphics M will be recorded in many mathematical files GB/T19474.22004
and will never appear in double screening. The latter can only be evaluated through test lamps. No test lamps are set up for many graphics (OM). If evaluation is to be carried out, all internal tests or tests shall be carried out for the images generated by the image correction technology. Usually, the graphics M is produced by the image correction technology. The examples listed in Figure 5 are the examples of the high-end graphics. 4.2 Specific test process
The test results described in Chapter 5 of this part should be used as the first page of the evaluation process (network record). The films are used to monitor their quality. They are used for routine inspection and compensation. The results are not satisfactory. The results of the initial test should be saved as a reference sample and compared with all the planned test sites. When the test results exceed the system tolerance (see 1.3), the system should be tested to the following: The operator should ensure that the test screen is within the minimum width of the planned test screen. The average test image should be checked. If the page quality drops relative to the reference example, a new set of images should be checked.
The test results should be saved for verification.
4.3 System Tolerances The system tolerances specified in Section 5.1 shall be consistent with the equipment supplier's specifications and shall be noted in the initial results. 5.3.3 The specified test shall comply with the provisions of Table 1 Acceptable density range of the film type frame type cavity type silver film type silver film 5 Special test method complete design or point stop 5.1 Dimensional, straightness and positioning inspection 5.1.1 General D not less than c. 15-F normal density
0.23 piece ± 100 grams
.40 film density
is small. It is advisable to use a microscope with a stage and the ability to move in the 1-axis direction to reduce the need for image compression. At the beginning and end of a test sequence, the film record should be sent to the measurement station as shown in the picture. 5.1.2 Method
5.1.2. 1 Picture size
Measurement center F and IF length: The calibration size is within the system tolerance range (see 3) 5.1.2.2 Line straightness
Move the film position so that the center of the two points on the microscope are moved to the center of the measurement disk and the measurement difference is large: for line and car detection. Adjust the position of the film: make the center point E coincide with the axis of the microscope, and make the vertical point E center X draw the center of the sample E center and the normal single. For the residual D and repeat the above increase, the deviation is sufficient to report that the system wear error is within the allowable range of 4.3, divide the error by the line length and multiply by 00: to get the deviation percentage.
5. 1.2. 3 positive change
First check the center line straightness, so that the system tolerance is within the allowable range! 43, measure the length of the line segment EHGFHAOBOCOO, the line segment length should be within the allowable range A35. 1. 2. 4 Straightness
CB/T19474.2—2004
to each grid intersection distance AD, respectively, horizontal distance: compare the measured value with the theoretical calculation result, check whether the error is within the allowable range of the system error [see 4.3], 5. 1.2.5 Line width
Move the stage, measure the line width and the small tolerance limit, check whether the measured value is within the allowable range of the system error (see 4.3) 5.1.2.5 Read the parallelism of the center of the image to the film edge. Align the microscope with the film reference edge, measure the distance between the midpoint and endpoint of the center line of the plane and the photograph, and restore the measured value to within the allowable range of the system error (see 4.3). 5.1.2.7 Image center positioning
Check whether the value of 5.12.6 is consistent with the center line of the received film and is within the allowable range of the system tolerance (see 4.3). For the open card, the vertical center line should also be measured sideways with the card as the original. 5.2 Inspection of readability, readability and density 5.2.1 solution shock force || tt || fee monthly efficiency large number sufficient effective accuracy countdown 1 to 3 times the normal sales inspection located at the test reduction surface (free Figure 2> center and four corners of the standard plate according to the service GB/T616119 when describing the Wanda, indicate the minimum line combination of the new energy board at the year, note: I use the prison mother instead of the efficiency to mark the low group, is the two to solve you are using the size of the rain number, the actual unit of each waterline time effectiveness square unit seems to be able to be requested by the CCM record instrument manufacturing change supply data table allowed ratio 5.2.2 Readability
Check the "\ character combination" and record the smallest letter combination that can be fully recognized. 5.2.3 Density
According to the provisions of 1SO52 and SO=3, use a density meter to measure the maximum and minimum density of the disk. Note that for very large films, the real hall setting should be measured and the acceptable density should be shown in Table 1.
5.3 Radial light test
Check all lines (see Figure 3) All the lines must be straight, continuous and straight, and there must be no breaks in the parallel lines. 5.4 Testing of bends
5.4.1 Description
Use the test pattern shown in Figure 5 to generate two lines of accuracy. 5.4.2 Method
Measure the length of the radius within each reading. The distance from the center of the circle is equal in any direction. Check between the two lines of the double line system. 5.5 The display and rotation of symbols should be checked and tested in accordance with the requirements of the performance, and the different angles and blurs of the products should be checked. 3 GR/T19474-2004 The midpoints of the edges and the centers of both sides should be added for each test. They do not need to appear in the film. Figure 1 Sample test screen for checking screen size, linearity and positioning GB/T 19474.2—2004 2 Sample test screen for checking resolution, robustness and density GB/T Figure 3: Sample test image for detecting radial direction Figure 4: Sample test image for detecting curve GB/T19474.2—2004
B/T19474.2—2904
Effective size is 0 to 62
Character check composed of 64-character ruler
EFCHJKEMNOPERS
A6BSCDEFGHIJKLMNOPORSTUV
A6OBCDEFG HIJKLMNOPORST
A62BCDEFGHIJKLMNOPQRST
AG9BCDEFGHIJKLMNOPDRSTUY
A61BCDEFGHIJKLMNO2ORST
A63BGDEFGHIJKLMNOI
Figure 5 Sample test screen for testing special display and character conversion Appendix
(Informative Appendix)
Bar density
GB/T 19474.2—2C04
It is very important to ensure that the raster image generated by M obtains a simple effect in the same light setting as the original file microform.
The requirements for the density of the original file microfilm produced in the production are not suitable for the equipment produced by the user. The density of the line will be complicated and varies with the type of equipment and its optical interface. For users and suppliers, it is necessary to obtain a reasonable density of the generated image first, then compare the characteristics of the original file with the generated image, and adjust the image quality according to the comparison results to achieve a satisfactory degree of quality.
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