CN103895343B - A kind of printed article detection method for quality and system - Google Patents
A kind of printed article detection method for quality and system Download PDFInfo
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- CN103895343B CN103895343B CN201210574611.8A CN201210574611A CN103895343B CN 103895343 B CN103895343 B CN 103895343B CN 201210574611 A CN201210574611 A CN 201210574611A CN 103895343 B CN103895343 B CN 103895343B
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Abstract
The invention discloses a kind of printed article detection method for quality and system, belong to printing technology.The various working conditions of the invention that printing will be first delivered according to original copy to be checked, determine error coefficient；The error coefficient Neng Gou anti-Showing-that-momentum-turning go out the various error components for influenceing printing effect in printing process；Then influence of the print production condition to printing effect is reflected according to the error coefficient, according to the analog image after the image constructive ways generation experience error event of simulation print production process；Finally the analog image and the original copy are contrasted, the situation that figure or pictorial element are even lost in decay occurs for analysis, provides inspection result accordingly.The present invention is contrasted with original copy accordingly by the image for simulating print production process to generate consistent with printing finished product, it is clear that has the advantages of intuitive is good and accuracy is high.
Description
Technical field
The invention belongs to printing technology, and in particular to a kind of printed article detection method for quality and system.
Background technology
In printing industry, due to the limitation of existing printing technology, figure or image contribution that designer makes print out
Come often and design original text have certain deviation.The generation of this deviation is relevant with several factors, and such as ink aberration, chromatography are not
Dislocation, too small dot loss etc. caused by accurate, and these factors for influenceing printing quality are also possible to be change.Therefore, original text
Part usually requires specifically to be examined before printing is delivered, to ensure that the effect after printing is consistent with design original text.Prior art
It is by setting a series of rule, and checks specify whether image meets these rules to draw assay item by item.Carry out
The purpose checked before print is in order to judge to design whether contribution meets the requirement of printing, but to contribution by way of setting rule
Check and can only prove that the figure of contribution or pictorial element meet some features, can not directly reflect that contribution exists
The change of front and rear-viewed effect is printed, accuracy is relatively low.
The content of the invention
For defect present in prior art, the technical problems to be solved by the invention are to provide a kind of directly perceived, accurate
Printed article detection method for quality and system.
In order to solve the above technical problems, the technical solution adopted by the present invention is as follows：
A kind of printed article detection method for quality, comprises the following steps：
（1）The various working conditions of printing will be delivered according to original copy to be checked, determine error coefficient；The error system
The various error components for influenceing printing effect in number Neng Gou anti-Showing-that-momentum-turning printing process；
（2）Influence of the print production condition to printing effect is reflected according to the error coefficient, according to simulation print production
Analog image after the image constructive ways generation experience error event of process；
（3）The analog image and the original copy are contrasted, analyzes there occurs decay or even loses figure or figure
The situation of pixel element, provides inspection result accordingly.
Printed article detection method for quality as described above, step（1）Described in error coefficient be integrated with for the original copy
Effect, either just for regional area or with specific characteristic figure or pictorial element it is effective.
Printed article detection method for quality as described above, step（1）Described in error coefficient be an expression formula or one
Serial expression formula.
Printed article detection method for quality as described above, step（1）Described in influence printing effect error component include
Alignment, the registration error coefficient form of expression are that there occurs displacement to be for relative datum point in the horizontal plane for printing plate（Δx,Δy）'s
Skew, wherein Δ x and Δ y are any positive negative value.
Printed article detection method for quality as described above, step（1）Described in influence printing effect error component include
Alignment, temperature and humidity, alignment, the expression formula of temperature and humidity error coefficient are：t×（Δ x, Δ y）, wherein t be temperature and
Humidity coefficient of colligation, its value are not less than 1.
Printed article detection method for quality as described above, step（2）Described in image constructive ways include computer software
Program is simulated and printer printing.
Printed article detection method for quality as described above, step（2）Described in generation experience error event after simulation drawing
The process of picture comprises the following steps：
1. divide version：Pictorial element in the original copy in printing on different printing plates is separated and by printing plate point
Group；
2. simulation error event：The error coefficient expression formula is quoted, by the information of pictorial element group respectively according to error
Coefficient expressions carry out computing；
3. close version：The pictorial element for carrying out the different printing plates after computing is merged by original datum mark, then
Carry out overlapping processing and obtain simulation printing image.
A kind of printed article quality control system, including for the various productions of printing will to be delivered according to original copy to be checked
Condition, determines the error coefficient determining device of error coefficient, various in the error coefficient Neng Gou anti-Showing-that-momentum-turning printing process to influence print
The error component of brushing effects；
For reflecting influence of the print production condition to printing effect according to the error coefficient, according to simulation print production
The analog image generating means of analog image after the image constructive ways generation experience error event of process；
For the analog image and the original copy to be contrasted, analyze there occurs decay or even lose figure or figure
The situation of pixel element, the inspection result determining device of inspection result is provided accordingly.
Printed article quality control system as described above, wherein, analog image generating means include being used for by original copy
Point version unit that pictorial element during printing on different printing plates is separated and is grouped by printing plate；
For fiducial error coefficient expressions, the information of pictorial element group is transported according to error coefficient expression formula respectively
The simulation error unit of calculation；
For the pictorial element for carrying out the different printing plates after computing to be merged by original datum mark, then carry out
Overlapping processing obtains the conjunction version unit of simulation printing image.
The present invention by the analog image of simulating print production process to generate consistent with printing finished product, accordingly with original copy pair
Than, it is clear that there is the advantages of intuitive is good and accuracy is high.Check it is to check picture proof impressionability this purpose before more meeting print.
Simultaneously as error coefficient can specify with working condition dynamic, assay is more reliable, and picture proof design and print production are had more
There is directive significance.
Brief description of the drawings
Fig. 1 is the structured flowchart of printed article quality control system in embodiment；
Fig. 2 is the flow chart of printed article detection method for quality in embodiment；
Fig. 3 is the process flow diagram flow chart for generating analog image in embodiment according to error coefficient；
Fig. 4 is original copy and analog image comparison diagram in embodiment, and Fig. 4 a are original copys, and Fig. 4 b are analog images.
Embodiment
The embodiment of the present invention is described in detail below in conjunction with the accompanying drawings.
As shown in figure 1, printed article quality control system includes error coefficient determining device 11, simulation drawing in present embodiment
As generating means 12 and inspection result determining device 13, analog image generating means 12 include dividing version unit 121, simulation error list
Member 122 and conjunction version unit 123.
Error coefficient determining device 11 is used for the various working conditions that printing will be delivered according to original copy to be checked, it is determined that
Error coefficient, the various error components for influenceing printing effects in the error coefficient Neng Gou anti-Showing-that-momentum-turning printing process.
Analog image generating means 12 are used to reflect shadow of the print production condition to printing effect according to the error coefficient
Ring, according to the analog image after the image constructive ways generation experience error event of simulation print production process.Wherein, version list is divided
Member 121 is used to separate the pictorial element in original copy in printing on different printing plates and be grouped by printing plate；Simulation misses
Poor unit 122 is used for fiducial error coefficient expressions, and the information of pictorial element group is carried out according to error coefficient expression formula respectively
Computing；Version unit 123 is closed to be used to by original datum mark merge the pictorial element for carrying out the different printing plates after computing one
Rise, then carry out overlapping processing and obtain simulation printing image.
Inspection result determining device 13 is used to be contrasted the analog image and the original copy, analyzes and is decayed
The situation of figure or pictorial element is even lost, provides inspection result accordingly.
As described in Figure 2, the method for realizing printed article quality examination using system shown in Figure 1 comprises the following steps：
（1）Error coefficient determining device 11 will deliver the various productions of printing according to figure to be checked or image manuscript
Condition, determine error coefficient.The various error components for influenceing printing effect in the error coefficient Neng Gou anti-Showing-that-momentum-turning printing process.
In actual production, the error component for influenceing printing effect is many.There are external environment aspect factor, such as temperature
Degree, humidity, also there are the plate-making quality and essence of the alignment precision, also printing plate between printing machine precision in itself and different printing plates
Degree.Meanwhile different error components are also different for the influence degree of printing quality.Showed money or valuables one carries unintentionally for example, registration error can cause
Overflowed with light color；The influence of temperature, humidity etc. can be then many.
Error coefficient is the weighting reflection of all of above factor, can be get up one of any of the above combined factors or
It is a series of expression formula, but collective effect is in final printing effect.And concrete numerical value therein and operation relation are then
Establish on the basis of empirical analysis, i.e., the statistics of error event and data analysis in being recorded based on conventional print production.In addition,
Because above-mentioned error component is probably continually changing, so the formulation of error coefficient also needs to look to the future or occurent
The trend that various error events change, and be modified on this basis.Accordingly, the error formulated under different working conditions
Coefficient expressions may have certain reference significance, but not possess the value directly quoted.
By taking registration error as an example.Its error form of expression may be defined as printing plate, and there occurs position for relative datum point in the horizontal plane
Shifting amount is（Δx,Δy）Skew, wherein Δ x and Δ y are any positive negative value.Reflect in print result to be then printing net-point
Corresponding displacement, which occurs, with respect to correct position is（Δx,Δy）Dislocation, i.e. the statement formula of registration error is bivector.
If the passing record of production shows that registration error has a great influence to printing quality, then aforementioned displacements expression formula
In the absolute values of two components need to accordingly increase.On the contrary, the raising of the operation technology if over participation printing registration,
The generation of registration error event will be reduced constantly.Possibly even because introducing new technology or new equipment, cause registration error thing
The probability that part occurs significantly reduces in a short time.In this case Δ x and Δ y value are also corrected in time, make its reduction, even
Ignored when necessary.
Moreover, temperature and humidity mentioned above may also make a difference to alignment.The two factors may linearly be put
Big registration error, then the expression formula of registration error is extended to：T × (Δ x, Δ y).Wherein t is temperature and humidity synthesis system
Number, its value are not less than 1.Obvious t is bigger, and registration error end value is bigger；And the influence of temperature and humidity can be neglected as t=1.
（2）Analog image generating means 12 reflect shadow of the print production condition to printing effect according to the error coefficient
Ring, according to the analog image after the image constructive ways generation experience error event of simulation print production process.
The approach for generating analog image can be a variety of, can be computer software programs simulation or printing
Machine printing etc..Its process be to original picture proof apply above-mentioned error coefficient influence, and with the result phase of the printing process of progress
Matching.
By taking computer software programs simulated implementation register trouble as an example, as shown in figure 3, comprising the following steps：
1. divide edition unit 121 points of versions：Pictorial element in original copy in printing on different printing plates is separated simultaneously
It is grouped by printing plate；
2. the simulation error event of simulation error unit 122：Quote the registration error expression formula, it would be possible to misplace
The positional information of some pictorial element groups carries out shift operation respectively.
3. closing version unit 123 closes version：The pictorial element of the different printing plates of shift operation will be carried out by original datum mark
Merge, then carry out overlapping processing and obtain simulation printing image.
Wherein, the concrete form of shift operation is as follows：
P1(i)=P0(i)+t × (Δ x, Δ y)
Wherein, P0And P (i)1(i) represent that the dot location before and after registration error occurs respectively.
If analog image is generated in a manner of printer printing, also comprising above three step.First by printing plate separate picture member
Element divides version, then quotes registration error expression formula and enter line misregistration computing i.e. simulation error event, finally in physical print medium（Such as
Paper etc.）The pictorial element that upper overstriking goes out each printing plate closes version.
For other error coefficient expression formulas, equally the influence of the error coefficient is printed in simulation using the above method
On map brushing picture.The simulation printing image ultimately generated is the Overlay of multiple said process.
（3）Inspection result determining device 13 is contrasted the analog image and the original copy, is analyzed and is decayed
The situation of figure or pictorial element is even lost, provides inspection result accordingly.
As shown in figure 4, Fig. 4 a are original copy, Fig. 4 b are analog image.Pass through contrast：Vertical moulding in Fig. 4 a illustrates
Because registration error causes color to be overflowed existing for copy printing, ledgement and star graphic lost after decay, and word exists
Thickened after decay unclear.The inspection result provided accordingly is more directly perceived and accurate.
Obviously, those skilled in the art can carry out the essence of various changes and modification without departing from the present invention to the present invention
God and scope.So, if these modifications and variations of the present invention belong to the scope of the claims in the present invention and its equivalent technology
Within, then the present invention is also intended to comprising including these changes and modification.
Claims (9)
1. a kind of printed article detection method for quality, comprises the following steps：
(1) the various working conditions of printing will be delivered according to original copy to be checked, determine error coefficient；The error coefficient energy
The various error components for influenceing printing effect in Gou anti-Showing-that-momentum-turning printing process；
(2) influence of the print production condition to printing effect is reflected according to the error coefficient, according to simulation print production process
Image constructive ways generation experience error event after analog image；
(3) analog image and the original copy are contrasted, analyzes situation about being decayed, provide inspection knot accordingly
Fruit.
2. printed article detection method for quality as claimed in claim 1, it is characterised in that：Error coefficient pin described in step (1)
It is integrally effective to the original copy, either just for regional area or with specific characteristic figure or pictorial element it is effective.
3. printed article detection method for quality as claimed in claim 1, it is characterised in that：Error coefficient is described in step (1)
One expression formula or a series of expression formulas.
4. printed article detection method for quality as claimed in claim 1, it is characterised in that：Printing effect is influenceed described in step (1)
The error component of fruit includes alignment, and the registration error coefficient form of expression is that there occurs displacement for relative datum point in the horizontal plane for printing plate
Measure that (Δ x, wherein Δ y) skew, Δ x and Δ y are any positive negative value for bivector.
5. printed article detection method for quality as claimed in claim 4, it is characterised in that：Printing effect is influenceed described in step (1)
The error component of fruit includes alignment, temperature and humidity, and alignment, the expression formula of temperature and humidity error coefficient are：T × (Δ x, Δ
Y), wherein t is temperature and humidity coefficient of colligation, and its value is not less than 1.
6. such as printed article detection method for quality according to any one of claims 1 to 5, it is characterised in that：Described in step (2)
Image constructive ways include computer software programs simulation and printer printing.
7. printed article detection method for quality as claimed in claim 6, it is characterised in that：Generation experience described in step (2) misses
The process of analog image after assignment part comprises the following steps：
1. divide version：Pictorial element in the original copy in printing on different printing plates is separated and is grouped by printing plate；
2. simulation error event：The error coefficient expression formula is quoted, by the information of pictorial element group respectively according to error coefficient
Expression formula carries out computing；
3. close version：The pictorial element for carrying out the different printing plates after computing is merged by original datum mark, then carried out
Overlapping processing obtains simulation printing image.
8. a kind of printed article quality control system, including for the various production bars of printing will to be delivered according to original copy to be checked
Part, determines the error coefficient determining device (11) of error coefficient, various influences in the error coefficient Neng Gou anti-Showing-that-momentum-turning printing process
The error component of printing effect；
For reflecting influence of the print production condition to printing effect according to the error coefficient, according to simulation print production process
Image constructive ways generation experience error event after analog image analog image generating means (12)；
For the analog image and the original copy to be contrasted, situation about being decayed is analyzed, provides inspection knot accordingly
The inspection result determining device (13) of fruit.
9. printed article quality control system as claimed in claim 8, it is characterised in that：The analog image generating means (12)
Including point version list for being separated and being grouped by printing plate the pictorial element in original copy in printing on different printing plates
First (121)；
For fiducial error coefficient expressions, the information of pictorial element group is subjected to computing according to error coefficient expression formula respectively
Simulation error unit (122)；
For the pictorial element for carrying out the different printing plates after computing to be merged by original datum mark, then overlapped
Processing obtains the conjunction version unit (123) of simulation printing image.
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| CN201210574611.8A CN103895343B (en) | 2012-12-26 | 2012-12-26 | A kind of printed article detection method for quality and system |
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| CN201210574611.8A CN103895343B (en) | 2012-12-26 | 2012-12-26 | A kind of printed article detection method for quality and system |
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| CN103895343B true CN103895343B (en) | 2017-12-19 |
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| CN110795051B (en) * | 2020-01-02 | 2020-04-14 | 中体彩印务技术有限公司 | Printing method and printing system for preventing printing data errors |
| CN112306433A (en) * | 2020-11-12 | 2021-02-02 | 深圳市华博创新科技有限公司 | Printing processing method for electronic draft bag |
| CN116755647A (en) * | 2023-06-19 | 2023-09-15 | 深圳市泰安达纸品包装有限公司 | Printing method and system for preventing printing data errors |
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