CN201628690U - Print detecting system - Google Patents
Print detecting system Download PDFInfo
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- CN201628690U CN201628690U CN201020135071XU CN201020135071U CN201628690U CN 201628690 U CN201628690 U CN 201628690U CN 201020135071X U CN201020135071X U CN 201020135071XU CN 201020135071 U CN201020135071 U CN 201020135071U CN 201628690 U CN201628690 U CN 201628690U
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Abstract
The utility model provides a print detecting system, which comprises an image reading module (100), a data processing module (200) and a detection output module (300), wherein the image reading module (100) is used for reading printing quality information and converting the printing quality information into a corresponding image signal; the data processing module (200) is used for processing the image signal inputted by the image reading module (100) and making a corresponding evaluation; and the detection output module (300) is used for outputting the result processed and evaluated by the data processing module (200). The utility model has the advantages that the print detecting system has high detecting efficiency for multimedia prints, can make a more detailed quality evaluation to the printing quality of an MPR code and facilitates better control for the MPR printing quality in the industry.
Description
Technical field
The utility model relates to a kind of printed article detection system, relates in particular to a kind of multimedia printed reading material detection system.
Background technology
The MPR sign indicating number is a kind of novel two-dimensional bar code, has been widely used in as on the publication.The multimedia printed reading material is by printing MPR sign indicating number on the conventional publication, then can be with the MPR reader by the identification of the MPR sign indicating number above it being sent multimedia messages correspondingly, thus make the multimedia printed reading material have the effect that listens reading.
The printing quality of MPR sign indicating number is the key link of multimedia printed reading material quality.At present, the detection to the MPR sign indicating number on the multimedia printed reading material has following two kinds of methods on the industry:
A kind of method is a quality of judging printing quality by the code-point size of the powerful magnifier Direct observation of artificial usefulness MPR sign indicating number and shade; The shortcoming of this method is, inefficiency, and, at printed article the place of literal or image having been arranged, the MPR sign indicating number has been blocked, and can't with the naked eye observe under common lighting condition, and like this, the effect of its detection also can't be guaranteed.
Another kind method is by directly removing reading MPR sign indicating number with the MPR reader, seeing whether it is distinguished.This method is compared with first method, although efficient increases, but but can't quantize the quality of MPR sign indicating number printing, sometimes can may its printing quality be on the critical value by the multimedia printed reading material of decoding, the hidden danger that has quality often can not read again when changing appears in external environment smoothly.And when finding that quality problems appear in the MPR sign indicating number, can't clearly be which type of quality problems further also, be unfavorable for printing accordingly and adjust and improve.
The utility model content
Technical problem to be solved in the utility model provides a kind of high-level efficiency, and can the printing quality of multimedia printed reading material be detected, and especially the MPR sign indicating number is carried out the printed article detection system of quality testing and various quality assessments.
The purpose of this utility model is achieved through the following technical solutions:
A kind of printed article detection system comprises:
The image read module is used to read printing quality information and is converted to image signals corresponding;
Data processing module is used for the picture signal of being imported by described image read module is handled, and makes corresponding evaluation;
Detect output module, be used to export the result that described data processing module is handled and estimated.
Adopt technique scheme, can efficient obtain MPR sign indicating number on the printed article, and can export various quality evaluation result accurately.
Furthermore, the printing quality information that described image read module is read comprises: printed medium information and MPR sign indicating number, and be output as the image data information that satisfies the accuracy of detection requirement.
Wherein, described image read module adopts the microspur of infrared light supply to read the covering that mode can see through picture and text printing ink, reads the MPR sign indicating number, and output image signal is the information of gray scale image data, to satisfy the requirement of accuracy of detection.
In addition, printed medium information comprises: as information such as the reflectivity of paper and textures, these information also can arrive by picture catching, and may restrict the overall printing quality of printed matter.
Adopt abovementioned technology, directly embody the response situation of media such as the print result of MPR sign indicating number and printing sheets, draw result accurately, and help to improve detection speed infrared light.Because naked eyes can not be seen infrared light, can only draw approximation by naked eyes.
Furthermore, described data processing module comprises:
The decoding judging unit, whether the picture signal that is used to estimate by described image read module input can pass through decoding, and draw corresponding evaluation of estimate; And,
Storage unit is used to store the reference information of estimating.
Adopt abovementioned technology,, and according to decoding whether successfully, can hold the printing quality of the MPR sign indicating number of this printed article on the whole by direct decoding to the MPR sign indicating number.
Furthermore, described data processing module comprises:
The gray scale detection unit is connected with described decoding judging unit, is used to estimate the gray scale by the picture signal of described image read module input, and draws corresponding evaluation of estimate.
By abovementioned technology,, can be further the gray-scale value of the MPR sign indicating number of printed article be estimated in conjunction with the processing and the evaluation result of decoding judging unit.
Furthermore, described data processing module comprises:
Printing incremental detection unit is connected with described decoding judging unit, is used for the described picture signal with input, compares with the gray threshold of setting, and produces corresponding bianry image, and draws corresponding evaluation of estimate.
Print increment and be dark module edge in yard schematic symbol and occupy the degree of light module region, or light module is occupied the degree of depth of dark module region because of ink diffusion.When the MPR code sign adopted the shop fixtures mode to print, printing increment was the important indicator that influences MPR sign indicating number sign indicating number battle array shading gray scale visual effect.By abovementioned technology,, can further print increment evaluation in conjunction with the processing and the evaluation result of decoding judging unit.
Furthermore, described data processing module comprises:
Axially the consistency detection unit is connected with described decoding judging unit, and whether the center that is used to estimate by the code-point of the picture signal of described image read module input follows axially unanimity of row, and draws corresponding evaluation of estimate.
The MPR code sign comprises the data field of being made up of code-point, and the central point of these code-points is arranged in the grid of regular polygon, must video the center of these modules to obtain data with reference to interpretation method.Axially inconsistency refers to the distance to iconocenter, and promptly sampling spot is in the level of grid and the tolerance and the classification at the interval on the vertical axial.Adopt abovementioned technology, can detect and estimate axial consistance.
Furthermore, described data processing module comprises:
The decoding judging unit, whether the picture signal that is used to estimate by described image read module input can pass through decoding, and draw corresponding evaluation of estimate;
The gray scale detection unit is used to estimate the gray scale by the picture signal of described image read module input, and draws corresponding evaluation of estimate;
Printing incremental detection unit is used for the described picture signal with input, compares with the gray threshold of setting, and produces corresponding bianry image, and draws corresponding evaluation of estimate;
Axial consistency detection unit, being used to estimate center by the code-point of the picture signal of described image read module input, whether to follow row axially consistent, and draw corresponding evaluation of estimate;
The comprehensive evaluation unit receives the evaluation of estimate of described decoding judging unit, gray scale detection unit, printing incremental detection unit and axial consistency detection unit respectively, and can draw corresponding comprehensive evaluation value; And storage unit is used to store the reference information of estimating.
Adopt abovementioned technology,
Specifically, below be an embodiment that gray scale is detected and estimates.
The gray-scale distribution of statistics MPR code sign zone interior pixel value, select in the pixel the darkest 10% and the brightest 10%, calculate the arithmetic mean of the darkest 10% reflectivity and the arithmetic mean of the brightest 10% reflectivity more respectively, the difference of these two mean values is exactly character correlation degree SC.
The evaluation of estimate of gray scale detection can be determined as follows by the SC value:
SC≥70％ 4.0(A)
70％＞SC≥55％ 3.0(B)
55％＞SC≥40％ 2.0(C)
40％＞SC≥20％ 1.0(D)
SC＜20% 0.0 (F is defective)
Specifically, below be an embodiment that the printing increment is detected and estimates.
At first, calculate the intermediate value of 10% bright, the dull gray rank arithmetic mean of MPR sign indicating number figure, produce a bianry image as threshold function in gray scale image with the result.
As reference evaluation objective parameter, the grade of calculated level and vertical both direction module size is got the printing increment grade of grade lower among both as this code-point respectively with the module size of the code-point of above-mentioned bianry image; The printing increment grade of MPR code sign is printed the lowest class of increment grade for all code-points of forming this symbol.The nominal value of regulation code-point module size is DNOM, and the maximal value of allowing is that DMAX and minimum value are DMIN.Measured value D is normalized to its nominal value and ultimate value:
If D＞DNOM D '=(D-DNOM)/(DMAX-DMIN)
Otherwise D '=(D-DNOM)/(DNOM-DMIN)
Printing the evaluation of estimate of increment determines as follows by grade:
-0.50≤D’≤0.50 4.0(A)
-0.70≤D’≤0.70 3.0(B)
-0.85≤D’≤0.85 2.0(C)
-1.00≤D’≤1.00 1.0(D)
D '＜-1.00 or D '＞1.00 0.0 (F is defective)
Specifically, below be an embodiment that axial consistance is detected and estimates.
To each code-point in the symbol, get its central point, then at the mean value XAVG and the YAVG that add up the spacing of the code-point central point on the adjacent code-point position on horizontal X direction and the vertical Y direction respectively, axially the inconsistency parameter is:
AN＝abs(XAVG-YAVG)/((XAVG+YAVG)/2)
Axially the inconsistency evaluation of estimate is pressed the definite as follows of grade:
As AN≤0.06 4.0 (A)
As AN≤0.08 3.0 (B)
As AN≤0.10 2.0 (C)
As AN≤0.12 1.0 (D)
As AN＞0.12 0.0 (F)
Specifically, at the foregoing description, the embodiment of comprehensive evaluation unit can gather above all evaluations of estimate, and in conjunction with the evaluation criterion of setting, provides comprehensive evaluation value.
And with the display terminal of relevant information by described detection output module, show as LCD display etc.,
The description of relevant evaluation value is seen as following table:
| Grade | With reference to decoding | The character correlation degree | Print increment | Axial inconsistency |
| 4(A) | By | ＞70％ | -0.50≤D’≤0.50 | AN≤0.06 |
| 3(B) | 70％≥SC＞55％ | -0.70≤D’≤0.70 | AN≤0.08 | |
| 2(C) | 55％≥SC＞40％ | -0.85≤D’≤0.85 | AN≤0.10 | |
| 1(D) | 40％≥SC＞20％ | -1.00≤D’≤1.00 | AN≤0.12 | |
| 0 (F is defective) | Failure | ≤20％ | D '＜-1.00 or D '＞1.00 | AN＞0.12 |
Furthermore, described data processing module comprises: image output module is used for that the picture signal by described image read module input is outputed to the display terminal that detects output module and shows.
Adopt abovementioned technology, the picture signal of the corresponding sign indicating number of acquisition that can be further real-time figure when corresponding mass defect occurring, is told concrete reason easilier.
Printed article detection system of the present utility model can adopt a kind of printed article detection method to carry out work, and this method comprises the steps:
Read step: read the MPR sign indicating number and be converted to image signals corresponding;
Data processing step: the picture signal that is obtained by described read step is handled, and made corresponding evaluation;
Detect the output step: export described data processing step result.
Furthermore, described data processing step comprises:
The decoding determining step is deciphered the picture signal that is obtained by described read step, if unsuccessful, then carries out described detection output step; If success is then carried out
Quality grade detects step, and the printing quality of the MPR sign indicating number of the picture signal that obtained by described read step is estimated, and carries out described detection output step then.
Advantage compared with prior art of the present utility model is, to the detection high-level efficiency of multimedia printed reading material, and can make the quality assessment of refinement more to the printing quality of MPR sign indicating number, is convenient to that the printing quality to MPR is better controlled in industry.
Description of drawings
Fig. 1 is the structural representation of a kind of embodiment of the utility model printed article detection system;
Fig. 2 is the structural representation of the another kind of embodiment of the utility model printed article detection system;
Fig. 3 is the hardware foundation structural representation of a kind of embodiment of the utility model printed article detection system;
Fig. 4 is the schematic flow sheet of a kind of embodiment of a kind of detection method of the utility model printed article detection system;
Fig. 5 is a kind of embodiment MPR of a kind of detection method of the utility model printed article detection system sign indicating number decoding process flow diagram.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing and preferred embodiment.
As shown in Figure 1, a kind of printed article detection system comprises: image read module 100 is used to read the MPR sign indicating number and is converted to image signals corresponding; Data processing module 200 is used for the picture signal of being imported by described image read module 100 is handled, and makes corresponding evaluation; And, detect output module 300, be used to export the result that described data processing module 200 is handled and estimated.
As shown in Figure 2, described data processing module 200 comprises: decoding judging unit 210, and whether the picture signal that is used to estimate by described image read module 100 inputs can pass through decoding, and draw corresponding evaluation of estimate; Gray scale detection unit 220 is used to estimate the gray scale by the picture signal of described image read module 100 inputs, and draws corresponding evaluation of estimate; Printing incremental detection unit 230 is used for the described picture signal with input, compares with the gray threshold of setting, and produces corresponding bianry image, and draws corresponding evaluation of estimate; Axial consistency detection unit 240, being used to estimate center by the code-point of the picture signal of described image read module 100 inputs, whether to follow row axially consistent, and draw corresponding evaluation of estimate; Comprehensive evaluation unit 250 receives the evaluation of estimate of described decoding judging unit 210, gray scale detection unit 220, printing incremental detection unit 230 and axial consistency detection unit 240 respectively, and can draw corresponding comprehensive evaluation value; And storage unit 280 is used to store the reference information of estimating.
In addition, described data processing module 200 also comprises: image output module 290 is used for that the picture signal by described image read module 100 inputs is outputed to the display terminal that detects output module 300 and shows.
As shown in Figure 3, image read module 100 adopts imageing sensors, obtaining the MPR sign indicating number on the multimedia printed reading material, and converts 8 digital signal to and delivers to ATJ2137
Storage unit 280 adopts storeies: be used for storage system original program and preserve relevant view data; Also adopt SDRAM, as loading procedure and data
Detect output module 300 and adopt LCD display, the image information of being obtained with image sensor, and show the printing quality grade and the relevant parameter of the MPR sign indicating number that is obtained
The USB seat that is connected with the ATJ2137 chip adopts the USB2.0 interface, be used for and equipment such as PC between the interface of copy of file
The printed article detection system not only can fast detecting MPR sign indicating number the printing quality grade, can also reflect existing problem intuitively, tell how the printing personnel adjust the correlation parameter of printing equipment, thereby lay a solid foundation for printing out the high quality multimedia printed reading material.
As shown in Figure 4, the printed article detection method comprises the steps:
Read step: read the MPR sign indicating number and be converted to image signals corresponding;
Data processing step: the picture signal that is obtained by described read step is handled, and made corresponding evaluation;
Detect the output step: export described data processing step result.
Wherein, described data processing step comprises:
The decoding determining step is deciphered the picture signal that is obtained by described read step, if unsuccessful, then carries out described detection output step; If success is then carried out
Quality grade detects step, and the printing quality of the MPR sign indicating number of the picture signal that obtained by described read step is estimated, and carries out described detection output step then.
Quality grade detects step and comprises: the MPR sign indicating number is carried out gray scale detection, printing incremental detection, axial consistency detection and comprehensive evaluation etc.
As shown in Figure 5, be a kind of flow process of deciphering determining step.Wherein, if the energy decoding success, the evaluation of estimate that decoding is judged is " 4 " so; Otherwise this evaluation of estimate is " 0 ".
Above content be in conjunction with concrete preferred implementation to further describing that the utility model is done, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, under the prerequisite that does not break away from the utility model design, can also make some simple deduction or replace, all should be considered as belonging to protection domain of the present utility model.
Claims (8)
1. a printed article detection system is characterized in that, comprising:
Image read module (100) is used to read printing quality information and is converted to image signals corresponding;
Data processing module (200) is used for the picture signal of being imported by described image read module (100) is handled, and makes corresponding evaluation;
Detect output module (300), be used to export the result that described data processing module (200) is handled and estimated.
2. printed article detection system as claimed in claim 1 is characterized in that, the printing quality information that described image read module (100) is read comprises: printed medium information and MPR sign indicating number, and the image data information that accuracy of detection requires is satisfied in output.
3. printed article detection system as claimed in claim 2 is characterized in that, described data processing module (200) comprising:
Decoding judging unit (210), whether the picture signal that is used for estimating by described image read module (100) input can pass through decoding, and draw corresponding evaluation of estimate; And,
Storage unit (280) is used to store the reference information of estimating.
4. printed article detection system as claimed in claim 1 or 2 is characterized in that, described data processing module (200) comprising:
Gray scale detection unit (220) is connected with described decoding judging unit (210), is used for estimating the gray scale by the picture signal of described image read module (100) input, and draws corresponding evaluation of estimate.
5. printed article detection system as claimed in claim 1 or 2 is characterized in that, described data processing module (200) comprising:
Printing incremental detection unit (230) is connected with described decoding judging unit (210), is used for the described picture signal with input, compares with the gray threshold of setting, and produces corresponding bianry image, and draws corresponding evaluation of estimate.
6. printed article detection system as claimed in claim 1 or 2 is characterized in that, described data processing module (200) comprising:
Axially consistency detection unit (240) is connected with described decoding judging unit (210), and whether the center that is used for estimating by the code-point of the picture signal of described image read module (100) input follows axially unanimity of row, and draws corresponding evaluation of estimate.
7. printed article detection system as claimed in claim 1 or 2 is characterized in that, described data processing module (200) comprising:
Decoding judging unit (210), whether the picture signal that is used for estimating by described image read module (100) input can pass through decoding, and draw corresponding evaluation of estimate;
Gray scale detection unit (220) is used for estimating the gray scale by the picture signal of described image read module (100) input, and draws corresponding evaluation of estimate;
Printing incremental detection unit (230) is used for the described picture signal with input, compares with the gray threshold of setting, and produces corresponding bianry image, and draws corresponding evaluation of estimate;
Axial consistency detection unit (240), being used for estimating center by the code-point of the picture signal of described image read module (100) input, whether to follow row axially consistent, and draw corresponding evaluation of estimate;
Comprehensive evaluation unit (250) receives the evaluation of estimate of described decoding judging unit (210), gray scale detection unit (220), printing incremental detection unit (230) and axial consistency detection unit (240) respectively, and can draw corresponding comprehensive evaluation value; And,
Storage unit (280) is used to store the reference information of estimating.
8. printed article detection system as claimed in claim 1, it is characterized in that, described data processing module (200) comprising: image output module (290) is used for that the picture signal by described image read module (100) input is outputed to the display terminal that detects output module (300) and shows.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020135071XU CN201628690U (en) | 2010-03-15 | 2010-03-15 | Print detecting system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201020135071XU CN201628690U (en) | 2010-03-15 | 2010-03-15 | Print detecting system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108982525A (en) * | 2018-08-23 | 2018-12-11 | 云南省印刷技术研究所 | A kind of analysis and detection method for books and periodicals green fine printing quality |
| CN110530895A (en) * | 2019-07-19 | 2019-12-03 | 北京慧眼智行科技有限公司 | A kind of method and device detecting printing quality |
| CN110909843A (en) * | 2019-11-21 | 2020-03-24 | 程烨 | Method, device, server and storage medium for modeling coded image |
| CN112816502A (en) * | 2021-01-05 | 2021-05-18 | 中钞印制技术研究院有限公司 | Bill quality evaluation method, bill quality evaluation apparatus, and readable storage medium |
-
2010
- 2010-03-15 CN CN201020135071XU patent/CN201628690U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108982525A (en) * | 2018-08-23 | 2018-12-11 | 云南省印刷技术研究所 | A kind of analysis and detection method for books and periodicals green fine printing quality |
| CN110530895A (en) * | 2019-07-19 | 2019-12-03 | 北京慧眼智行科技有限公司 | A kind of method and device detecting printing quality |
| CN110909843A (en) * | 2019-11-21 | 2020-03-24 | 程烨 | Method, device, server and storage medium for modeling coded image |
| CN110909843B (en) * | 2019-11-21 | 2021-05-14 | 程烨 | Method, device, server and storage medium for modeling coded image |
| CN112816502A (en) * | 2021-01-05 | 2021-05-18 | 中钞印制技术研究院有限公司 | Bill quality evaluation method, bill quality evaluation apparatus, and readable storage medium |
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