CN107392270A - A kind of two-dimensional code generation method - Google Patents
A kind of two-dimensional code generation method Download PDFInfo
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- CN107392270A CN107392270A CN201710603456.0A CN201710603456A CN107392270A CN 107392270 A CN107392270 A CN 107392270A CN 201710603456 A CN201710603456 A CN 201710603456A CN 107392270 A CN107392270 A CN 107392270A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K17/00—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
- G06K17/0022—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisious for transferring data to distant stations, e.g. from a sensing device
- G06K17/0025—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisious for transferring data to distant stations, e.g. from a sensing device the arrangement consisting of a wireless interrogation device in combination with a device for optically marking the record carrier
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/90—Details of database functions independent of the retrieved data types
- G06F16/95—Retrieval from the web
- G06F16/955—Retrieval from the web using information identifiers, e.g. uniform resource locators [URL]
- G06F16/9554—Retrieval from the web using information identifiers, e.g. uniform resource locators [URL] by using bar codes
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/06009—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking
- G06K19/06037—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking multi-dimensional coding
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/06009—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking
- G06K19/06046—Constructional details
- G06K19/06056—Constructional details the marking comprising a further embedded marking, e.g. a 1D bar code with the black bars containing a smaller sized coding
Abstract
A kind of Quick Response Code prints generation method, including：（1）The array information of each coloured image in storage color image collection and coloured image set；（2）Receive the 2 D code information for needing to print；（3）Generation needs the image in 2 D code printed；（4）Image in 2 D code is matched with the pre-stored coloured image set, is determined to the coloured image shown in image in 2 D code；（5）The array information of coloured image based on matching, generate the first random number array and the second random number array；（6）Coloured image of the generation with electronics texture；（7）By in the coloured image insertion image in 2 D code with electronics texture, print image is generated；（8）The print image of generation is carried out by colour print by colour print device.
Description
Technical field
The present invention relates to a kind of printing technique, more particularly, to a kind of Quick Response Code printing technique.
Background technology
Barcode technology be it is a kind of melt coding, printing, data acquisition and processing (DAP) in the automatic identification technology of one, bar code divides again
For one-dimension code and Quick Response Code, Quick Response Code is in addition to possessing the advantages that one-dimension code cost is low, propagation facilitates, also with information capacity
Greatly, reliability is high, can represent diversified forms data, the advantages that security and antiforge purpose is strong.
With the fast development of economy and ICT, the application of barcode technology has been directed to commodity circulation, traffic
The fields such as transport, Industry Control.Traditional bar code memory data output, reliability, security and antiforge purpose etc. it is all it is many-sided oneself
New requirement can not be met, therefore two-dimensional bar code is increasingly paid attention to and is applied in increasing field.
Quick Response Code is the black and white phase being distributed according to certain rules in plane (on two-dimensional directional) with certain specific geometric figure
The figure of news carrys out the bar code of record data symbolic information.With information capacity is big, reliability is high, coded system is flexible, secrecy is anti-
The advantages that puppet is strong.Carrier of the Quick Response Code as information, and information gathering, the important method and means of propagation, in each neck
Domain, which can play, proposes efficient effect.With the popularization of intelligent terminal and the quick popularization of mobile network so that Quick Response Code into
For the window in Future Data epoch.Planar bar code technology is in fields such as mobile e-business, word Rapid input, food safety managements
It is widely used.
Current conventional use of Quick Response Code is black print Quick Response Code, and its pattern is by rambling black and white letter
Breath point is formed, and shape is disorderly and unsystematic, is printed on product external packaging, and the overall appearance design for product causes very big
Destruction, have influence on the overall appearance effect of packaging.
Current color 2 D code printing technique is developed on the basis of black and white planar bar code technology.Prior art
In, the acquisition pattern of color 2 D code includes black being replaced into other monochromatic colors, and its information content does not increase.In order that beat
The color 2 D code of print is more attractive in appearance, and 201310211386.6 disclose a kind of Method of printing of color 2 D code, by by two
Dimension code image is matched with the image being stored in advance in image data base, so that it is determined that the coloured image of matching is as insertion
Image, so as to generate color 2 D code data.
But 201310211386.6 patent of invention there is a problem in that, the image stored in its image data base has
Limit, it is understood that there may be the situation for the image that can not be matched with image in 2 D code；Meanwhile the two-dimension code anti-counterfeit performance deficiency of its generation.
The content of the invention
A kind of improvement of the present invention as 201310211386.6 patent of invention, there is provided its technical problem of can solve the problem that
Quick Response Code Method of printing.
As one aspect of the present invention, there is provided a kind of two-dimensional code generation method, it generates the two dimension with electronics texture
Code, including：（1）The array information of each coloured image in storage color image collection and coloured image set；（2）Receiving needs
The 2 D code information to be printed；（3）2 D code information generation based on reception needs the image in 2 D code printed；（4）By two dimension
Code image is matched with the pre-stored coloured image set, is determined to the cromogram shown in image in 2 D code
Picture；（5）The array information of coloured image based on matching, generate the first random number array and the second random number array；（6）Base
In the coloured image of matching, the first random number array, the array information of the coloured image of the second random number array and matching, into
The raw coloured image with electronics texture；（7）By in the coloured image insertion image in 2 D code with electronics texture, generate
Print image；（8）The print image of generation is carried out by colour print by colour print device.
Preferably, the array information of the coloured image includes the color that pattern matrix divides and each array corresponds to
Collection, the color set include domain color and multiple electronics texture colors.
Preferably, each array is solid color.
Preferably, the domain color and multiple electronics texture colors are the color that color value is more than threshold value, and it is two
It is all black or white after value.
Preferably, the step（5）In, the random number A in the first random number arrayiIt is one or more random number,
Random number AiScope for 1 arrive coloured image number of arrays N；Second random number array and the first random number array, which have, equally to be counted
Purpose random number Bi, the random number BiScope be coloured image array AiElectronics texture color number.
Preferably, the step（6）In, when generation has the coloured image of electronics texture, by array A in coloured imagei
Color be arranged to B in electronics texture color numberiIndividual color.
Preferably, in the coloured image with electronics texture, not for electronics texture array color of image
For the domain color of the array stored in storage part.
Preferably, when the matching part is matched image in 2 D code with the coloured image in storage part, based on tolerance
Whether the coloured image in threshold decision storage part matches with image in 2 D code.
Preferably, the tolerance threshold is less than the error correction threshold value of Quick Response Code.
Preferably, the tolerance threshold is smaller by 2%~5% than the error correction threshold value of Quick Response Code.
Preferably, the 2 D code information of the reception includes the website information of network memory.
Preferably, in addition to step（9）, the print image of generation is stored into network memory, for printing
Quick Response Code verified.
Preferably, the step（4）In, including：Step（4.1）By the coloured image in image in 2 D code and storage part
When being matched, record image in 2 D code and the color value of the respective modules of each coloured image in coloured image set differs
The ratio of the number of all modules in the number and image in 2 D code of cause；（4.2）Judge whether to match image；If there is
Image is matched, then terminates to match；If coloured image set and the image in 2 D code all mismatch, step (4.3) is carried out：
（4.3）It is step-length with 1%, untill tolerance threshold is decreased into tolerance threshold less than 1% successively, judges image in 2 D code and storage
The number of all modules in the inconsistent number of the color values of the respective modules of each coloured image in portion and image in 2 D code
Ratio and the reduction after tolerance threshold size；（4.4）It is less than the big of the tolerance threshold after the reduction if there is ratio
Small coloured image, it is determined that the coloured image is the matching image corresponding to the tolerance threshold after the reduction.
Optionally, the step（4）In, including：（4.1）The matching part is by the coloured silk in image in 2 D code and storage part
When color image is matched, if all coloured images and the image in 2 D code in storage part all mismatch, carry out such as
Lower operation：（4.2）Matched after image clockwise in storage part is rotated by 90 ° with image in 2 D code, if there is matching
Successful coloured image, then using the coloured image that this is rotated by 90 ° as the coloured image shown in image in 2 D code；（4.3）
If matching is unsuccessful, will be matched after the image clockwise rotation 180 degree in storage part with image in 2 D code, if there is
The coloured image that the match is successful, then using the coloured image of the rotation 180 degree as the coloured image shown in image in 2 D code；
（4.4）If matching is unsuccessful, matched after the image clockwise in storage part is rotated into 270 degree with image in 2 D code, such as
There is the coloured image that the match is successful in fruit, then using the coloured image of 270 degree of the rotation as the coloured silk shown in image in 2 D code
Color image；（4.5）If matching is unsuccessful, it is determined that in the absence of the coloured image matched with the image in 2 D code.
As another aspect of the present invention, there is provided the recognition methods of above-mentioned printed Quick Response Code, including following step
Suddenly：（1）The image of the Quick Response Code of printing is obtained by imaging sensor；（2）By image binaryzation, the two dimension of black-white colors is obtained
Code image；（3）The information in the image in 2 D code of black-white colors is determined according to Quick Response Code coding rule；（4）Obtain Quick Response Code figure
The website information of the network memory in information as in；（5）The website information of network memory is accessed, obtains network memory
The image in 2 D code of storage；（6）By in the electronics texture of the Quick Response Code of printing and the image in 2 D code of network memory storage
Electronics texture is verified.
Brief description of the drawings
Fig. 1 is the Quick Response Code Method of printing flow chart of the embodiment of the present invention.
Fig. 2 is the part steps flow chart of the preferred embodiment of the present invention.
Fig. 3 is the part steps flow chart of another preferred embodiment of the present invention.
Fig. 4 is the identification verification method flow chart of the color 2 D code image of printing of the embodiment of the present invention.
The system structure diagram of the Quick Response Code generation system of Fig. 5 embodiment of the present invention.
Embodiment
In order to illustrate more clearly of technical scheme, embodiment will be used simply to be situated between the present invention below
Continue, it should be apparent that, in describing below is only one embodiment of the present of invention, is come for those of ordinary skill in the art
Say, without having to pay creative labor, other technical schemes can also be obtained according to these embodiments, fallen within
Disclosure of the invention scope.
Referring to Fig. 1, the Quick Response Code printing generation method of the embodiment of the present invention, comprise the following steps：（1）Storage color image
The array information of each coloured image in set and coloured image set；Wherein, the array information of coloured image includes image
The color set that array divides and each array corresponds to, color set include domain color and multiple electronics texture colors；（2）Connect
Receive the 2 D code information for needing to print；（3）2 D code information generation based on reception needs the image in 2 D code printed；（4）Will
Image in 2 D code is matched with the pre-stored coloured image set, is determined to the colour shown in image in 2 D code
Image；（5）The array information of coloured image based on matching, generate the first random number array and the second random number array；The
Random number A in one random number arrayiIt is one or more random number, random number AiScope for 1 arrive coloured image array
Number N；Second random number array and the first random number array have the random number B of the same numberi, the random number BiScope be
The array A of coloured imageiElectronics texture color number；（6）Coloured image based on matching, the first random number array, second with
The array information of machine number array and the coloured image of matching, Cheng Sheng have the coloured image of electronics texture；Wherein, generation has
During the coloured image of electronics texture, by array A in coloured imageiColor be arranged to B in electronics texture color numberiIndividual face
Color.（7）By in the coloured image insertion image in 2 D code with electronics texture, print image is generated；（8）Beaten by colour
Printing equipment is put carries out colour print by the print image of generation；（9）The print image of generation is stored into network memory, is used for
The Quick Response Code printed is verified.
A preferred embodiment of the invention, referring to Fig. 2, step（4）In, including：Step（4.1）By image in 2 D code
When being matched with the coloured image in storage part, record image in 2 D code and each coloured image in coloured image set
The ratio of the number of all modules in the inconsistent number of the color values of respective modules and image in 2 D code；（4.2）Judge whether
In the presence of matching image；If there is matching image, then terminate to match；If coloured image set and the image in 2 D code are not
During matching, step (4.3) is carried out：（4.3）It is step-length with 1%, untill tolerance threshold is decreased into tolerance threshold less than 1% successively,
Judge the image in 2 D code number inconsistent with the color value of the respective modules of each coloured image in storage part and Quick Response Code
The size of the ratio of the number of all modules and the tolerance threshold after the reduction in image；(4.4) being less than if there is ratio should
The coloured image of the size of tolerance threshold after reduction, it is determined that the coloured image is corresponding to the tolerance threshold after the reduction
Match image.By above-mentioned preferred embodiment, when matching image being not present in storage part, it can also further determine that and be used for
The image of matching, so as to generate the image in 2 D code with color electric texture.
By above-mentioned preferred embodiment, when matching image being not present in storage part, it can also further determine that and be used for
The image of matching, so as to generate the image in 2 D code with color electric texture.
In above-described embodiment, the method by reducing tolerance threshold, the scope of increase matching image, but the embodiment is led
The fault-tolerant value of the image in 2 D code of generation is caused to decline, so that the image in 2 D code of generation can may not be read in it when being stained
Hold.The further improved embodiment of the present invention is referring to Fig. 3, step（4）In, including：（4.1）The matching part is by Quick Response Code figure
When picture is matched with the coloured image in storage part, if all coloured images and the image in 2 D code in storage part are all
During mismatch, proceed as follows：（4.2）Image clockwise in storage part is rotated by 90 ° the progress of rear and image in 2 D code
Match somebody with somebody, if there is the coloured image that the match is successful, then the coloured image being rotated by 90 ° this is shown as in image in 2 D code
Coloured image；（4.3）If matching is unsuccessful, by storage part image clockwise rotation 180 degree after with image in 2 D code
Matched, if there is the coloured image that the match is successful, then using the coloured image of the rotation 180 degree as in image in 2 D code
The coloured image of middle display；（4.4）If matching is unsuccessful, by storage part image clockwise rotate 270 degree after with two dimension
Code image is matched, if there is the coloured image that the match is successful, then using the coloured image of 270 degree of the rotation as in two dimension
The coloured image shown in code image；（4.5）If matching is unsuccessful, it is determined that in the absence of what is matched with the image in 2 D code
Coloured image.
The recognition methods for the image in 2 D code that the embodiment of the present invention prints, referring to Fig. 4, comprise the following steps：（1）Pass through
Imaging sensor obtains the image of the Quick Response Code of printing；（2）By image binaryzation, the image in 2 D code of black-white colors is obtained；（3）
The information in the image in 2 D code of black-white colors is determined according to Quick Response Code coding rule；（4）Obtain the information in image in 2 D code
In network memory website information；（5）The website information of network memory is accessed, obtains the two dimension of network memory storage
Code image；（6）Electronics texture in the image in 2 D code that the electronics texture of the Quick Response Code of printing is stored with network memory enters
Row checking.
The print system of the Quick Response Code printing generation method of the embodiment of the present invention, referring to Fig. 5, including：Acceptance division 10, two dimension
Code generating unit 20, storage part 30, matching part 40, the first tandom number generator 50, the second tandom number generator 60, the life of electronics texture
Into portion 70, print image generating unit 80, image transmitting portion 90 and colour print portion 100.
Acceptance division 10 is used to receive the two-dimensional code data for needing to print, it is necessary to which the two-dimensional code data of printing can represent to produce
The information on product data, producer, date etc., for example alphabetical, numeral, character or the character string conduct that they are combined into can be used
Represent these information；Also include the network address of network memory in two-dimensional code data, storage therein can browse through by the network address
Image.
Quick Response Code generating unit 20, the 2 D code information generation of reception is needed two printed by it based on Quick Response Code coding rule
Code image is tieed up, the conventional Quick Response Code coding rule such as QR Code, PDF417, Code49 can be used.
Storage part 30, its store it is default be used to matching the coloured image of image in 2 D code, the coloured image of the storage with
The resolution ratio of image in 2 D code is identical, that is to say, that basic module in the size of basic module and image in 2 D code in coloured image
Size it is identical.The array information of default coloured image is also stored in storage part 30, the array information of coloured image includes figure
As the color set that array division and each array correspond to, color set includes domain color and multiple electronics texture colors.Figure
During as array division, color identical basic module adjacent in image can be divided into same an array.Master in color set
Color and multiple electronics texture colors are the color that color value is more than threshold value, the setting of the threshold value make they binaryzation it
After be all black or white.
Matching part 40, image in 2 D code is matched, is determined in two dimension by it with the coloured image in storage part 30
The coloured image shown in code image；Specifically, matching part 40 carries out the coloured image in image in 2 D code and storage part 30
During matching, judge whether coloured image in storage part matches with image in 2 D code based on tolerance threshold, when image in 2 D code with
The number of all modules in the inconsistent number of the color values of the respective modules of coloured image in storage part and image in 2 D code
Ratio when being more than tolerance threshold, judging part judges that the coloured image mismatches with image in 2 D code；When image in 2 D code is with depositing
The number of all modules in the inconsistent number of the color values of the respective modules of coloured image in storage portion and image in 2 D code
When ratio is less than tolerance threshold, judging part judges that the coloured image matches with image in 2 D code.Tolerance threshold is based on Quick Response Code
Error correction threshold value is set, it is preferred that the tolerance threshold is smaller by 2%~5% than the error correction threshold value of Quick Response Code.For example, Quick Response Code entangles
When wrong threshold value is 15%, tolerance threshold can be arranged to 10%~13%, can be with when the error correction threshold value of Quick Response Code is 25%
Tolerance threshold is arranged to 20%~23%.
First tandom number generator 50, it generates the first random number array；Random number A in first random number arrayiCan
To be one or more random number, random number AiScope for 1 arrive coloured image number of arrays N.Second tandom number generator
60, it generates the second random number array, and the second random number array and the first random number array have the random number B of the same numberi,
The random number BiScope be coloured image array AiElectronics texture color number.
Electronics texture generating unit 70, its first random number array generated based on the first tandom number generator 50 and storage
The array information for the coloured image that portion 30 stores, it is determined that being used for the array of electronics texture in the coloured image of matching, based on second
The array information for the coloured image that the second random number array and storage part 30 that tandom number generator 60 generates store determines should
For the color of the array of electronics texture, by array A in coloured imageiColor be arranged to B in electronics texture color numberi
Individual color；And array A in coloured imageiOutside the color of array be arranged to the domain color of the array；So as to be used for based on this
The array of electronics texture and coloured image of the color generation with electronics texture of array.
Matching result of the print image generating unit 80 based on matching part, there is electronics by what electronics texture generating unit 70 generated
In the image in 2 D code of the generation of coloured image insertion Quick Response Code generating unit 20 of texture, print image is generated.Image transmitting portion 90
The print image of generation is sent in network memory, print Quick Response Code identification when, by its with network memory
The print image of storage is verified.
Colour print portion 100, for print image to be carried out into colour print；Conventional colour print device can be used,
Print image is subjected to colour print, such as using the printing equipment with multiple color nozzles, sprayed out on the print medium
Coloured image.
In all documents for referring to of the present invention all incorporated by reference in this application, it is individually recited just as each document
As with reference to such.It should be noted that herein, such as first and second or the like relational terms are used merely to one
Individual entity or operation make a distinction with another entity or operation, and not necessarily require or imply these entities or operate it
Between any this actual relation or order be present.Moreover, term " comprising ", "comprising" or its any other variant are intended to
Cover including for nonexcludability, so that process, method, article or equipment including a series of elements not only include those
Key element, but also the other element including being not expressly set out, or also include for this process, method, article or set
Standby intrinsic key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that
Other identical element in the process including the key element, method, article or equipment also be present.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the scope of the present invention.It is all
Any modification, equivalent substitution and improvements made within the spirit and principles in the present invention etc., are all contained in protection scope of the present invention
It is interior.
Claims (6)
1. a kind of two-dimensional code generation method, it generates the Quick Response Code with electronics texture, including：（1）Storage color image collection
And in coloured image set each coloured image array information；（2）Receive the 2 D code information for needing to print；（3）It is based on
The 2 D code information generation of reception needs the image in 2 D code printed；（4）By image in 2 D code and the pre-stored cromogram
Image set is closed and matched, and is determined to the coloured image shown in image in 2 D code；（5）The battle array of coloured image based on matching
Column information, generate the first random number array and the second random number array；（6）Coloured image based on matching, the first random number
The array information of the coloured image of array, the second random number array and matching, coloured image of the generation with electronics texture；
（7）By in the coloured image insertion image in 2 D code with electronics texture, print image is generated；（8）Pass through colour print
The print image of generation is carried out colour print by device.
2. two-dimensional code generation method according to claim 1, it is characterised in that：Each battle array in the array information of coloured image
It is classified as solid color.
3. two-dimensional code generation method according to claim 2, it is characterised in that：The step（4）In, including：Step
（4.1）When image in 2 D code is matched with the coloured image in storage part, record image in 2 D code and cromogram image set
The number of all modules in the inconsistent number of the color values of the respective modules of each coloured image in conjunction and image in 2 D code
Ratio；（4.2）Judge whether to match image；If there is matching image, then terminate to match；If coloured image set
When all being mismatched with the image in 2 D code, step (4.3) is carried out：（4.3）It is step-length with 1%, is successively decreased to tolerance threshold
Untill tolerance threshold is less than 1%, image in 2 D code and the color value of the respective modules of each coloured image in storage part are judged
The size of the ratio of the number of all modules and the tolerance threshold after the reduction in inconsistent number and image in 2 D code；
（4.4）It is less than the coloured image of the size of the tolerance threshold after the reduction if there is ratio, it is determined that the coloured image is pair
Should be in the matching image of the tolerance threshold after the reduction.
4. two-dimensional code generation method according to claim 3, it is characterised in that：The matching part is by image in 2 D code with depositing
When coloured image in storage portion is matched, based on tolerance threshold judge coloured image in storage part whether with image in 2 D code
Matching.
5. two-dimensional code generation method according to claim 4, it is characterised in that：The tolerance threshold is less than entangling for Quick Response Code
Wrong threshold value.
6. a kind of recognition methods of color 2 D code, comprises the following steps：（1）The Quick Response Code of printing is obtained by imaging sensor
Image；（2）By image binaryzation, the image in 2 D code of black-white colors is obtained；（3）Black and white is determined according to Quick Response Code coding rule
Information in the image in 2 D code of color；（4）Obtain the website information of the network memory in the information in image in 2 D code；
（5）The website information of network memory is accessed, obtains the image in 2 D code of network memory storage；（6）By the Quick Response Code of printing
The image in 2 D code that is stored with network memory of electronics texture in electronics texture verified.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108021840A (en) * | 2017-12-17 | 2018-05-11 | 韩少卿 | One kind pays Quick Response Code print system |
| CN108416405A (en) * | 2018-03-12 | 2018-08-17 | 北京知道创宇信息技术有限公司 | 2 D code verification method and system |
| CN108460442A (en) * | 2018-03-12 | 2018-08-28 | 北京知道创宇信息技术有限公司 | Color 2 D code generating method and device |
| CN109117686A (en) * | 2018-08-17 | 2019-01-01 | 连云港伍江数码科技有限公司 | Recognition methods, device, computer equipment and the storage medium of object information |
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