CN108460900A - A kind of method, apparatus, equipment and storage medium for calculating bank note and being stained grade - Google Patents
A kind of method, apparatus, equipment and storage medium for calculating bank note and being stained grade Download PDFInfo
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- CN108460900A CN108460900A CN201810175475.2A CN201810175475A CN108460900A CN 108460900 A CN108460900 A CN 108460900A CN 201810175475 A CN201810175475 A CN 201810175475A CN 108460900 A CN108460900 A CN 108460900A
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- stained
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- bank note
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
- G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
- G07D7/20—Testing patterns thereon
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Abstract
The embodiment of the invention discloses method, apparatus, equipment and storage medium that a kind of calculating bank note is stained grade.This method includes：The image of bank note is obtained, and intercepts N number of sample areas from the image of the bank note, N is the positive integer more than 1, and the gray value of the sample areas is more than the gray value of the bank note；Determine that brightness is more than or equal to the pixel number of luminance threshold in the sample areas；It is stained grade according to pixel number lookup is corresponding；By N number of sample areas be stained grade it is cumulative after obtain the bank note be stained grade.The embodiment of the present invention intercepts N number of sample areas in the image by obtaining bank note, determine that brightness is more than or equal to the pixel number of luminance threshold in sample areas, it searches and corresponding is stained grade, by N number of sample areas be stained grade it is cumulative after obtain bank note be stained grade, it is easy to operate and to be stained grade classification more reliable to realize that improving bank note is stained the accuracy rate of identification.
Description
Technical field
The present embodiments relate to paper currency detection technical field more particularly to it is a kind of calculate bank note be stained grade method,
Device, equipment and storage medium.
Background technology
Bank note carries important role in people's lives as main money flow means.China's cash flow
It is logical in large scale, being stained for bank note is inevitably caused naturally.
Defect detection is an important link in paper currency sorting, is stained for person's handwriting etc. common on bank note, general
Defect detection is all the feature of weight analysis dark-part, and the region being stained on bank note can make the region dimmed, and for judgement
The selection of the dimmed threshold value in the region is relatively difficult, can not obtain the result of calculation of the preferable degree of effect.For example,
By taking the head portrait part of bank note as an example, if considering, the dim spot number of bank note head portrait part becomes this more feature, even the same bank note,
Due to being had differences between sensor and between environment, gray value also has some fluctuations, or the threshold value based on binaryzation
It chooses and its deforms, treatment effect is also bad, and there are larger differences with actual capabilities for the result that the degree being stained calculates.
Invention content
The embodiment of the present invention provides a kind of method, apparatus, equipment and storage medium for calculating bank note and being stained grade, to realize
It improves bank note and is stained the accuracy rate of identification, it is easy to operate and to be stained grade classification more reliable.
In a first aspect, an embodiment of the present invention provides a kind of method that calculating bank note is stained grade, this method includes：
The image of bank note is obtained, and intercepts N number of sample areas from the image of the bank note, N is the positive integer more than 1,
The gray value of the sample areas is more than the gray value of the bank note；
Determine that brightness is more than or equal to the pixel number of luminance threshold in the sample areas；
It is stained grade according to pixel number lookup is corresponding；
By N number of sample areas be stained grade it is cumulative after obtain the bank note be stained grade.
Second aspect, the embodiment of the present invention additionally provide a kind of device for calculating bank note and being stained grade, which includes：
Sample areas acquisition module, the image for obtaining bank note, and N number of sample area is intercepted from the image of the bank note
Domain, N are the positive integer more than 1, and the gray value of the sample areas is more than the gray value of the bank note；
Pixel number determining module, for determining that brightness is more than or equal to the pixel of luminance threshold in the sample areas
Number；
It is stained grade searching module, for being stained grade according to pixel number lookup is corresponding；
The grade that is stained of bank note obtains module, for by N number of sample areas be stained grade it is cumulative after obtain it is described
Bank note is stained grade.
The third aspect, the embodiment of the present invention additionally provide a kind of equipment, including memory, processor and are stored in memory
Computer program that is upper and can running on a processor, the processor realize that the embodiment of the present invention is any when executing described program
The method that the calculating bank note is stained grade.
Fourth aspect, the embodiment of the present invention additionally provide a kind of computer readable storage medium, are stored thereon with computer
Program realizes the method that any calculating bank note of the embodiment of the present invention is stained grade when the program is executed by processor.
The embodiment of the present invention intercepts N number of sample areas in the image by obtaining bank note, determines that brightness is big in sample areas
In the pixel number equal to luminance threshold, lookup is corresponding to be stained grade, and the grade that is stained of N number of sample areas is added up
Obtain bank note afterwards is stained grade, easy to operate and be stained grade classification more to realize that improving bank note is stained the accuracy rate of identification
It is reliable.
Description of the drawings
Fig. 1 is the flow chart for the method that a kind of calculating bank note that the embodiment of the present invention one provides is stained grade；
Fig. 2 is a kind of flow chart for calculating bank note and being stained the method for grade provided by Embodiment 2 of the present invention；
Fig. 3 is the structure chart for the device that a kind of calculating bank note that the embodiment of the present invention three provides is stained grade；
Fig. 4 is a kind of hardware architecture diagram for equipment that the embodiment of the present invention four provides.
Specific implementation mode
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with the accompanying drawings to of the invention specific real
Example is applied to be described in further detail.It is understood that specific embodiment described herein is used only for explaining the present invention,
Rather than limitation of the invention.
It also should be noted that only the parts related to the present invention are shown for ease of description, in attached drawing rather than
Full content.It should be mentioned that some exemplary embodiments are described before exemplary embodiment is discussed in greater detail
At the processing or method described as flow chart.Although operations (or step) are described as the processing of sequence by flow chart,
It is that many of which operation can be implemented concurrently, concomitantly or simultaneously.In addition, the sequence of operations can be by again
It arranges.The processing can be terminated when its operations are completed, it is also possible to the additional step being not included in attached drawing.
The processing can correspond to method, function, regulation, subroutine, subprogram etc..
Embodiment one
Fig. 1 is the flow chart for the method that a kind of calculating bank note that the embodiment of the present invention one provides is stained grade, the present embodiment
It is applicable to carry out the case where deciding grade and level calculates to the grade that is stained of bank note, this method can be stained the device of grade by calculating bank note
It executes, specifically comprises the following steps：
S110, the image for obtaining bank note, and N number of sample areas is intercepted from the image of the bank note, N is just more than 1
Integer, the gray value of the sample areas are more than the gray value of the bank note.
Wherein, the image of bank note is the gray-scale map of the bank note of the green channel output by RGB triple channels, that is, the paper obtained
The image of coin is single channel gray-scale map, and single channel gray-scale map is by 8 gray values (0-255) by single pixel o'clock come table
Show.N number of sample areas is intercepted from the image of the bank note, the sample areas interception can be rmb paper currency positive and negative
N number of region.
Specifically, from N number of sample areas that bank note intercepts, the gray scale for meeting sample areas is needed in the selection of sample areas
Value is more than the gray value of bank note, i.e. the gray value of sample areas belongs to brighter region or sample in whole picture banknote image
Region satisfaction is the bright dark apparent region of comparison in whole picture banknote image.User hand can be passed through in the selection of sample areas
Dynamic selection is estimated by human eye and chooses sample areas, or one larger threshold value of setting, and the selection of threshold value can be by user
Voluntarily it is arranged according to actual conditions, the embodiment of the present invention is only explained it at this, is not limited.
It should be noted that the considerations of being stained for bank note, typically analyzes the banknote area caused by being stained and becomes
Secretly, this feature is increased based on the dimmed dim spot number in insult area, realizes the rating calculation that bank note is stained.The embodiment of the present invention is anti-
It is defaced just because of bank note to consideration so that originally brighter region is dimmed, and the region dark compared to itself is dimmed to be gone to examine
Consider, considers more obvious when the variation of brighter this dimmed feature of region.In conclusion the statistics in conjunction with normal bank note is special
Sign, and the observation to bank note, N number of sample areas is intercepted from the image of bank note, feature is stained with comprehensive judgement bank note.
S120, determine that brightness is more than or equal to the pixel number of luminance threshold in the sample areas.
Wherein, brightness is determined by the gray value of sample areas in sample areas.Sample areas contains between black and white
All gray tones, that is, the pixel value for each pixel for including is 256 kinds of gray scales between black and white
In one kind.
Specifically, the ranging from 0-255 of gray value, indicate brightness from depth to shallow, the color in correspondence image be from it is black to
In vain.Luminance threshold can be voluntarily arranged according to actual conditions by user according to brightness in sample areas, and the embodiment of the present invention exists
It is only explained in this, is not limited.
S130, it is stained grade according to pixel number lookup is corresponding.
Specifically, brightness is more than or equal to the pixel number of luminance threshold in determining sample areas, according to the pixel
Number lookup is corresponding to be stained grade.By taking any one sample areas as an example, counts the normal pixel number of the sample areas and exist
8000 or so, and (sample areas being stained herein refers to being stained of can intuitively observing to the sample areas therein being stained
More serious region) at 1000 or so, thus we can set and be stained grade accordingly, and pixel number is in 6500-8000
Between set and be stained grade as 1, pixel number setting between 5000-6500 is stained grade as 2, according to this method
It probably divides successively, pixel number is the number of the larger pixel of brightness in sample areas herein.
S140, by N number of sample areas be stained grade it is cumulative after obtain the bank note be stained grade.
The embodiment of the present invention intercepts N number of sample areas in the image by obtaining bank note, determines that brightness is big in sample areas
In the pixel number equal to luminance threshold, lookup is corresponding to be stained grade, and the grade that is stained of N number of sample areas is added up
Obtain bank note afterwards is stained grade, easy to operate and be stained grade classification more to realize that improving bank note is stained the accuracy rate of identification
It is reliable.
Embodiment two
Fig. 2 is a kind of flow chart for calculating bank note and being stained the method for grade provided by Embodiment 2 of the present invention.The present embodiment
Optimized based on above-described embodiment, in the present embodiment, in step determines the sample areas brightness be more than or equal to
Before the pixel number of luminance threshold, further include：Statistics with histogram is carried out to the sample areas and determines the sample areas
Pixel number.On this basis, step according to the pixel number search it is corresponding be stained grade advanced optimize for：
Be stained from preset bank note search corresponding with the pixel number sample areas in rank list be stained grade.
On the basis of this, the method further includes：When the bank note be stained grade be more than or equal to be stained grade threshold when, then the bank note
Be stained grade be stained grade threshold.
Correspondingly, the method for the present embodiment specifically includes：
S210, the image for obtaining bank note, and N number of sample areas is intercepted from the image of the bank note, N is just more than 1
Integer, the gray value of the sample areas are more than the gray value of the bank note.
S220, the pixel number that statistics with histogram determines the sample areas is carried out to the sample areas.
Specifically, the pixel number to sample areas carries out statistics with histogram, histogram herein is grey level histogram,
Grey level histogram is the function about grey level distribution, is the statistics to grey level distribution in image, it indicates have in image
The number of the pixel of certain gray level reflects the frequency that certain gray scale occurs in image.Grey level histogram is by digital picture
In all pixels, according to the size of gray value, count its appearance frequency.To each of sample areas in the embodiment of the present invention
Pixel is traversed, and the pixel number for obtaining sample areas carries out statistics with histogram, obtains each pixel number and occurs
Frequency.
S230, determine that brightness is more than or equal to the pixel number of luminance threshold in the sample areas.
S240, it is stained in rank list from preset bank note and searches the sample areas corresponding with the pixel number
Be stained grade.
Wherein, preset bank note, which is stained rank list, to be correspondingly arranged difference according to the value range of pixel number
Sample areas be stained grade.Illustratively, by the normal pixel number of sample areas for 8000 or so, and its
In the sample areas (sample areas being stained herein refer to can intuitively observe be stained more serious region) being stained exist
1000 or so, thus we can set accordingly and be stained grade, setting of the pixel number between 6500-8000 is stained
Grade be 1, pixel number setting between 5000-6500 be stained grade be 2, according to this method successively probably divide, have
The sample areas of body is stained grade and can depend on the circumstances, and the present embodiment is without limitation.
S250, by N number of sample areas be stained grade it is cumulative after obtain the bank note be stained grade.
S260, when the bank note be stained grade be more than or equal to be stained grade threshold when, then the bank note is stained grade
To be stained grade threshold.
Can voluntarily it be arranged according to actual conditions by user specifically, being stained grade threshold, the embodiment of the present invention is right at this
It is only explained, and is not limited.For example, the grade that is stained to bank note pre-sets 9 grades, i.e.,
It is 9 to be stained grade threshold, obtain N number of sample areas in banknote image be stained grade after, it is cumulative to have obtained being stained for bank note
Grade has been more than 9, then still assert that the grade that is stained of the bank note is 9 at this time.
The embodiment of the present invention intercepts N number of sample areas in the image by obtaining bank note, determines that brightness is big in sample areas
In the pixel number equal to luminance threshold, it is corresponding with the pixel number to be stained lookup in rank list from preset bank note
The sample areas be stained grade, by the N number of sample areas be stained grade it is cumulative after obtain bank note be stained grade,
When the bank note is when being stained grade more than or equal to grade threshold is stained, then the grade that is stained of the bank note is to be stained grade threshold
Value, it is easy to operate and to be stained grade classification more reliable to realize that improving bank note is stained the accuracy rate of identification.
Embodiment three
Fig. 3 is the structure chart for the device that a kind of calculating bank note that the embodiment of the present invention three provides is stained grade, the present embodiment
It is applicable to carry out the case where deciding grade and level calculates to the grade that is stained of bank note.
As shown in figure 3, described device includes：Sample areas acquisition module 310, is stained pixel number determining module 320
Grade searching module 330 and the grade that is stained of bank note obtain module 340, wherein：
Sample areas acquisition module 310, the image for obtaining bank note, and N number of sample is intercepted from the image of the bank note
One's respective area, N are the positive integer more than 1, and the gray value of the sample areas is more than the gray value of the bank note；
Pixel number determining module 320, for determining that brightness is more than or equal to the picture of luminance threshold in the sample areas
Vegetarian refreshments number；
It is stained grade searching module 330, for being stained grade according to pixel number lookup is corresponding；
The grade that is stained of bank note obtains module 340, for being stained after grade adds up for N number of sample areas to be obtained institute
That states bank note is stained grade.
A kind of calculating bank note of the present embodiment is stained the device of grade, and N number of sample is intercepted in the image by obtaining bank note
Region determines that brightness is more than or equal to the pixel number of luminance threshold in sample areas, and lookup is corresponding to be stained grade, will be N number of
The sample areas be stained grade it is cumulative after obtain bank note be stained grade, to realize that improving bank note is stained the accurate of identification
Rate, it is easy to operate and to be stained grade classification more reliable.
On the basis of the various embodiments described above, described device further includes：
Pixel number statistical module determines the sample areas for carrying out statistics with histogram to the sample areas
Pixel number.
On the basis of the various embodiments described above, the grade searching module 330 that is stained is specifically used for：
The dirt that the sample areas corresponding with the pixel number is searched in rank list is stained from preset bank note
Damage grade.
On the basis of the various embodiments described above, described device further includes：
Be stained grade threshold judgment module, for when the bank note be stained grade be more than or equal to be stained grade threshold when,
Then the grade that is stained of the bank note is to be stained grade threshold.
The executable any embodiment of the present invention of device that the calculating bank note that the various embodiments described above are provided is stained grade is carried
The method that the calculating bank note of confession is stained grade, has to execute and calculates bank note and be stained the corresponding function module of method of grade and beneficial
Effect.
Example IV
As shown in figure 4, a kind of hardware architecture diagram of the equipment provided for the embodiment of the present invention four, as shown in figure 4, should
Equipment includes：
One or more processors 410, in Fig. 4 by taking a processor 410 as an example；
Memory 420；
The equipment can also include：Input unit 430 and output device 440.
Processor 410, memory 420, input unit 430 and output device 440 in the equipment can pass through bus
Or other modes connect, in Fig. 4 for being connected by bus.
Memory 420 is used as a kind of non-transient computer readable storage medium, and can be used for storing software program, computer can
Program and module are executed, if a kind of corresponding program instruction/module of the method for XX in the embodiment of the present invention is (for example, attached drawing 3
Shown in sample areas acquisition module 310, pixel number determining module 320, the dirt for being stained grade searching module 330 and bank note
Damage grade obtains module 340).Processor 410 is stored in software program, instruction and module in memory 420 by operation,
To execute various function application and the data processing of equipment, that is, realize that a kind of calculating bank note of above method embodiment is stained
The method of grade.
Memory 420 may include storing program area and storage data field, wherein storing program area can store operation system
System, the required application program of at least one function；Storage data field can be stored uses created data etc. according to equipment.
Can also include non-transitory memory in addition, memory 420 may include high-speed random access memory, for example, at least one
A disk memory, flush memory device or other non-transitory solid-state memories.In some embodiments, memory 420 can
Choosing includes the memory remotely located relative to processor 410, these remote memories can be set by network connection to terminal
It is standby.The example of above-mentioned network includes but not limited to internet, intranet, LAN, mobile radio communication and combinations thereof.
Input unit 430 can be used for receiving the number or character information of input, and generate with the user setting of equipment with
And the related key signals input of function control.Output device 440 may include that display screen etc. shows equipment.
Embodiment five
The embodiment of the present invention also provides a kind of storage medium including computer executable instructions, and the computer is executable
It instructs when being executed by computer processor for executing a kind of method that calculating bank note is stained grade, this method includes：
The image of bank note is obtained, and intercepts N number of sample areas from the image of the bank note, N is the positive integer more than 1,
The gray value of the sample areas is more than the gray value of the bank note；
Determine that brightness is more than or equal to the pixel number of luminance threshold in the sample areas；
It is stained grade according to pixel number lookup is corresponding；
By N number of sample areas be stained grade it is cumulative after obtain the bank note be stained grade.
Optionally, which can be also used for executing the present invention times when being executed by computer processor
A kind of calculating bank note that meaning embodiment is provided is stained the technical solution of the method for grade.
By the description above with respect to embodiment, it is apparent to those skilled in the art that, the present invention
It can be realized by software and required common hardware, naturally it is also possible to which by hardware realization, but the former is more in many cases
Good embodiment.Based on this understanding, technical scheme of the present invention substantially in other words contributes to the prior art
Part can be expressed in the form of software products, which can be stored in computer readable storage medium
In, such as the floppy disk of computer, read-only memory (Read-Only Memory, ROM), random access memory (Random
Access Memory, RAM), flash memory (FLASH), hard disk or CD etc., including some instructions are with so that a computer is set
Standby (can be personal computer, server or the network equipment etc.) executes the calculating bank note described in each embodiment of the present invention
The method for being stained grade.
Note that above are only presently preferred embodiments of the present invention and institute's application technology principle.It will be appreciated by those skilled in the art that
The present invention is not limited to specific embodiments described here, can carry out for a person skilled in the art it is various it is apparent variation,
It readjusts and substitutes without departing from protection scope of the present invention.Therefore, although being carried out to the present invention by above example
It is described in further detail, but the present invention is not limited only to above example, without departing from the inventive concept, also
May include other more equivalent embodiments, and the scope of the present invention is determined by scope of the appended claims.
Claims (10)
1. a kind of method for calculating bank note and being stained grade, which is characterized in that including：
The image of bank note is obtained, and intercepts N number of sample areas from the image of the bank note, N is the positive integer more than 1, described
The gray value of sample areas is more than the gray value of the bank note；
Determine that brightness is more than or equal to the pixel number of luminance threshold in the sample areas；
It is stained grade according to pixel number lookup is corresponding；
By N number of sample areas be stained grade it is cumulative after obtain the bank note be stained grade.
2. according to the method described in claim 1, it is characterized in that, brightness is more than or equal to brightness in determining the sample areas
Before the pixel number of threshold value, further include：
The pixel number that statistics with histogram determines the sample areas is carried out to the sample areas.
3. according to the method described in claim 1, it is characterized in that, described search corresponding be stained according to the pixel number
Grade, including：
It is stained to search in rank list from preset bank note and be stained with the corresponding sample areas of pixel number
Grade.
4. according to the method described in claim 1, it is characterized in that, the method further includes：
When the bank note is when being stained grade more than or equal to grade threshold is stained, then the grade that is stained of the bank note is to be stained grade
Threshold value.
5. a kind of device for calculating bank note and being stained grade, which is characterized in that including：
Sample areas acquisition module, the image for obtaining bank note, and N number of sample areas, N are intercepted from the image of the bank note
For the positive integer more than 1, the gray value of the sample areas is more than the gray value of the bank note；
Pixel number determining module, for determining that brightness is more than or equal to the pixel of luminance threshold in the sample areas
Number；
It is stained grade searching module, for being stained grade according to pixel number lookup is corresponding；
The grade that is stained of bank note obtains module, for being stained after grade adds up for N number of sample areas to be obtained the bank note
Be stained grade.
6. device according to claim 5, which is characterized in that described device further includes：
Pixel number statistical module, for carrying out the pixel that statistics with histogram determines the sample areas to the sample areas
Point number.
7. device according to claim 5, which is characterized in that the grade searching module that is stained is specifically used for：
It is stained to search in rank list from preset bank note and be stained with the corresponding sample areas of pixel number
Grade.
8. device according to claim 5, which is characterized in that described device further includes：
Be stained grade threshold judgment module, for when the bank note be stained grade be more than or equal to be stained grade threshold when, then institute
The grade that is stained for stating bank note is to be stained grade threshold.
9. a kind of equipment, including memory, processor and storage are on a memory and the computer journey that can run on a processor
Sequence, which is characterized in that the processor realizes that the calculating bank note as described in any in claim 1-4 is dirty when executing described program
The method for damaging grade.
10. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the program is by processor
The method that the calculating bank note as described in any in claim 1-4 is stained grade is realized when execution.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810175475.2A CN108460900A (en) | 2018-03-02 | 2018-03-02 | A kind of method, apparatus, equipment and storage medium for calculating bank note and being stained grade |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810175475.2A CN108460900A (en) | 2018-03-02 | 2018-03-02 | A kind of method, apparatus, equipment and storage medium for calculating bank note and being stained grade |
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| CN101506851A (en) * | 2006-08-31 | 2009-08-12 | 光荣株式会社 | Paper sheet identification device and paper sheet identification method |
| CN102682514A (en) * | 2012-05-17 | 2012-09-19 | 广州广电运通金融电子股份有限公司 | Paper identification method and relative device |
| CN106934922A (en) * | 2017-03-15 | 2017-07-07 | 深圳怡化电脑股份有限公司 | A kind of paper currency detecting method and device |
| CN107012717A (en) * | 2017-04-06 | 2017-08-04 | 南京三宝弘正视觉科技有限公司 | A kind of paper production control device and method |
| KR20180009013A (en) * | 2016-07-15 | 2018-01-25 | 삼성디스플레이 주식회사 | Pixel compensating apparatus and display system having the same |
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2018
- 2018-03-02 CN CN201810175475.2A patent/CN108460900A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101506851A (en) * | 2006-08-31 | 2009-08-12 | 光荣株式会社 | Paper sheet identification device and paper sheet identification method |
| CN102682514A (en) * | 2012-05-17 | 2012-09-19 | 广州广电运通金融电子股份有限公司 | Paper identification method and relative device |
| KR20180009013A (en) * | 2016-07-15 | 2018-01-25 | 삼성디스플레이 주식회사 | Pixel compensating apparatus and display system having the same |
| CN106934922A (en) * | 2017-03-15 | 2017-07-07 | 深圳怡化电脑股份有限公司 | A kind of paper currency detecting method and device |
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Application publication date: 20180828 |