CN104573677B - The authentication method and device of paper product uniqueness - Google Patents
The authentication method and device of paper product uniqueness Download PDFInfo
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- CN104573677B CN104573677B CN201510058672.2A CN201510058672A CN104573677B CN 104573677 B CN104573677 B CN 104573677B CN 201510058672 A CN201510058672 A CN 201510058672A CN 104573677 B CN104573677 B CN 104573677B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
- G06V30/40—Document-oriented image-based pattern recognition
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
- G06V30/40—Document-oriented image-based pattern recognition
- G06V30/41—Analysis of document content
- G06V30/418—Document matching, e.g. of document images
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V2201/00—Indexing scheme relating to image or video recognition or understanding
- G06V2201/09—Recognition of logos
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Abstract
The present invention provides a kind of authentication methods and device of paper product uniqueness, belong to image processing field, and the first of first same area of this method including obtaining paper product to be compared and reference paper product respectively treats contrast images；Contrast images are treated in amplification first, obtain the first paper lines image；The rgb value of the first paper lines image of paper product to be compared is obtained, obtains the first rgb value, the rgb value of the first paper lines image with reference to paper product is obtained, obtains the second rgb value.This method by getting the first rgb value of the first paper lines image of the paper product to be compared respectively, and the second rgb value of the first paper lines image with reference to paper product, by judging whether the first rgb value and the second rgb value are equal, carry out the uniqueness of certification paper product to be compared, so as to improve the paper product of the same type without number printed, the problem of can not also carrying out the certification of uniqueness at present.
Description
Technical field
The present invention relates to image processing field, in particular to a kind of authentication method and dress of paper product uniqueness
It puts.
Background technology
The paper product to circulate currently on the market, for example, bank note, ticket etc. are all printed with oneself exclusive number, as every
The identity ID of paper product is opened, in order to carry out the certification of uniqueness.And the paper product of the same type for no number printed,
The certification of uniqueness can not be also carried out at present.
Invention content
The purpose of the present invention is to provide a kind of authentication methods and device of paper product uniqueness, are not printed with improving
The paper product of the same type of number, the problem of can not also carrying out the certification of uniqueness at present.
The invention is realized in this way：
In a first aspect, an embodiment of the present invention provides a kind of authentication method of paper product uniqueness, applied to paper product only
The authentication device of one property, the method includes：
Obtain the first same area of paper product to be compared and reference paper product respectively first treats contrast images, described
Paper product to be compared and the reference paper product content are identical with shape；
Amplify described first and treat contrast images, obtain the first paper lines image；
The rgb value of the first paper lines image of paper product to be compared described in acquisition, obtains the first rgb value, obtains
The rgb value of the first paper lines image with reference to paper product, obtains the second rgb value；
Compare first rgb value and second rgb value, when first rgb value and second rgb value not
When equal, then paper product to be compared described in judgement has uniqueness.
With reference to first aspect, an embodiment of the present invention provides the first possible embodiment of first aspect, wherein, institute
The authentication method of paper product uniqueness is stated, is further included：
When first rgb value and equal second rgb value, respectively obtain described in paper product to be compared and institute
State the second same area with reference to paper product second treats contrast images；
Amplify described second and treat contrast images, obtain the second paper lines image；
The rgb value of the second paper lines image of paper product to be compared described in acquisition, obtains third rgb value, obtains
The rgb value of the second paper lines image with reference to paper product, obtains the 4th rgb value；
When the third rgb value and unequal the 4th rgb value, then paper product to be compared described in judgement has uniquely
Property.
With reference to first aspect, an embodiment of the present invention provides second of possible embodiment of first aspect, wherein, institute
It states amplification described first and treats contrast images, obtain the first paper lines image, including：
Obtain image magnification rule and amplification factor；
Rule and amplification factor are amplified according to described image, amplification described first treats contrast images, obtains described first
Paper lines image.
The possible embodiment of with reference to first aspect the first, an embodiment of the present invention provides the third of first aspect
Possible embodiment, wherein, contrast images are treated in the amplification described second, obtain the second paper lines image, including：
Obtain image magnification rule and amplification factor；
Rule and amplification factor are amplified according to described image, amplification described second treats contrast images, obtains described second
Paper lines image.
With reference to first aspect, an embodiment of the present invention provides the 4th kind of possible embodiment of first aspect, wherein, institute
Described first of paper product to be compared and first same area with reference to paper product described in obtaining respectively is stated to treat pair
Than image, including：
In the coordinate system pre-established, obtain respectively described in paper product to be compared and described with reference to the identical of paper product
The first of coordinate range treats contrast images.
Second aspect, an embodiment of the present invention provides a kind of authentication device of paper product uniqueness, including：
First treats contrast images obtaining unit, for obtaining paper product to be compared and the first phase with reference to paper product respectively
Contrast images are treated with the first of region, and the paper product to be compared and the reference paper product content are identical with shape；
First paper lines image acquiring unit treats contrast images for amplifying described first, obtains the first paper lines
Image；
First image rgb value obtaining unit, for obtaining the first paper lines image of the paper product to be compared
Rgb value, obtain the first rgb value, obtain the rgb value of the first paper lines image with reference to paper product, obtain the
Two rgb values；
First rgb value comparison unit, for comparing first rgb value and second rgb value, when described first
When rgb value and unequal second rgb value, then paper product to be compared described in judgement has uniqueness.
With reference to second aspect, an embodiment of the present invention provides the first possible embodiment of second aspect, wherein, institute
The authentication device of paper product uniqueness is stated, is further included：
Second treats contrast images obtaining unit, for when first rgb value and equal second rgb value, point
Not Huo get described in paper product to be compared and second same area with reference to paper product second treat contrast images；
Second paper lines image acquiring unit treats contrast images for amplifying described second, obtains the second paper lines
Image；
Second image rgb value obtaining unit, for obtaining the second paper lines image of the paper product to be compared
Rgb value, obtain third rgb value, obtain the rgb value of the second paper lines image with reference to paper product, obtain the
Four rgb values；
Second rgb value comparison unit, for comparing the third rgb value and the 4th rgb value, when the third
When rgb value and unequal the 4th rgb value, then paper product to be compared described in judgement has uniqueness.
With reference to second aspect, an embodiment of the present invention provides second of possible embodiment of second aspect, wherein, institute
The first paper lines image acquiring unit is stated, including：
First image magnification parameter obtains subelement, for obtaining image magnification rule and amplification factor；
First image magnification subelement, for amplifying rule and amplification factor, amplification described first according to described image
It treats contrast images, obtains the first paper lines image.
With reference to the first possible embodiment of second aspect, an embodiment of the present invention provides the third of second aspect
Possible embodiment, wherein, the second paper lines image acquiring unit, including：
Second image magnification parameter obtains subelement, for obtaining image magnification rule and amplification factor；
Second image magnification subelement, for amplifying rule and amplification factor, amplification described second according to described image
It treats contrast images, obtains the second paper lines image.
With reference to second aspect, an embodiment of the present invention provides the 4th kind of possible embodiment of second aspect, wherein,
One treats contrast images obtaining unit, including：
Image coordinate creates subelement, for being pre-created coordinate system；
Image interception subelement, in the coordinate system pre-established, obtain respectively described in paper product to be compared and
The first of the same coordinate range with reference to paper product treats contrast images.
The authentication method and device of paper product uniqueness provided in an embodiment of the present invention, it is equal by obtaining content and shape
It is identical after comparison paper product and with reference to paper product the first same area first after contrast images, amplification described first is treated
Contrast images obtain the first paper lines image of the paper product to be compared and first paper with reference to paper product
Lines image.Get the first rgb value of the first paper lines image of the paper product to be compared and the ginseng respectively again
The second rgb value of the first paper lines image of paper product is examined, by judging whether the first rgb value and the second rgb value are equal, is come
The uniqueness of certification paper product to be compared so as to improve the paper product of the same type without number printed, can not also at present
The problem of carrying out the certification of uniqueness.
Description of the drawings
Fig. 1 is the flow chart of the authentication method of paper product uniqueness provided in an embodiment of the present invention；
Fig. 2 is to obtain identical coordinate range image in the authentication method of paper product uniqueness provided in an embodiment of the present invention
Principle schematic；
Fig. 3 is a kind of structure diagram of the authentication device of paper product uniqueness provided in an embodiment of the present invention；
Fig. 4 is the structure diagram of the authentication device of another paper product uniqueness provided in an embodiment of the present invention.
Specific embodiment
Below in conjunction with attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Ground describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.Usually exist
The component of the embodiment of the present invention described and illustrated in attached drawing can be configured to arrange and design with a variety of different herein.Cause
This, the detailed description of the embodiment of the present invention to providing in the accompanying drawings is not intended to limit claimed invention below
Range, but it is merely representative of the selected embodiment of the present invention.Based on the embodiment of the present invention, those skilled in the art are not doing
Go out all other embodiments obtained under the premise of creative work, shall fall within the protection scope of the present invention.
The paper product to circulate currently on the market, for example, bank note, ticket etc. are all printed with oneself exclusive number, as every
The identity ID of paper product is opened, in order to carry out the certification of uniqueness.And the paper product of the same type for no number printed,
The certification of uniqueness can not be also carried out at present.The present inventor is by continuous the study found that the material of all paperys is by paper
Slurry is made, and the paper fiber of finished product is irregular arbitrary arrangement, ultimately form microcosmic texture after paper product do not have it is any identical
At one, therefore, for macroscopically identical, i.e. content two pieces of paper matter product identical with shape, by comparing two pieces of paper matter product
Paper lines, i.e., " paper line ", you can judge whether the microscopic feature of two pieces of paper matter product identical, based on this, the present inventor propose
The authentication method and device of paper product uniqueness provided in an embodiment of the present invention.
Referring to Fig. 1, a kind of authentication method of paper product uniqueness provided in an embodiment of the present invention, applied to paper product only
The authentication device of one property, the method includes：
Step S101：Obtain the first same area of paper product to be compared and reference paper product respectively first waits to compare
Image, the paper product to be compared and the reference paper product content are identical with shape.
In practice process, in order to ensure the validity of image comparison, need to obtain paper product to be compared and reference respectively
The image in identical region in paper product treats contrast images, and paper product to be compared and reference paper product are content as first
With the identical paper product of shape, for example, two identical stamps, food coupon or calligraphy and painting etc..And for the ease of image pair
Than the acquisition that microimaging head carries out image may be used.
And obtain paper product to be compared and with reference to the image in identical region in paper product mode there are many, for example, can
To treat contrast images as first by obtaining the part of identical patterns or word in paper product to be compared and reference paper product,
It, then, can be in practice process for example, be printed with the printed words of " national national food coupon " on two identical food coupons
The image for intercepting in paper product to be compared " complete " word treats contrast images as the first of paper product to be compared, correspondingly, interception ginseng
The image for examining in image " complete " word treats contrast images as the first of paper product to be compared.
Further, it is also possible to by way of obtaining identical coordinate range image, the image of same area is obtained.Such as Fig. 2
It is shown, the general image of paper product to be compared is loaded into the image coordinate system pre-established, determine four coordinate points A (x1,
Y1), B (x2, y1), C (x1, y2), D (x2, y2), wherein x1 are less than x2, and y1 is less than y2, then the quadrangle that point ABCD is surrounded,
For first image to be detected of paper product to be compared, correspondingly, the general image with reference to paper product is loaded into what is pre-established
In image coordinate system, quadrangle that same intercept point ABCD is surrounded, for first image to be detected with reference to paper product.
Step S102：Amplify described first and treat contrast images, obtain the first paper lines image.When acquisition image to be detected
Described first treat described the first of contrast images and reference picture after contrast images, pass through the institute to image to be detected
It states first and treats that described the first of contrast images and reference picture treats that contrast images are amplified processing respectively, it is to be checked in favor of obtaining
First paper lines image of altimetric image and the first paper lines image of reference picture.And in practice process, image
Amplification method and amplification factor can determines according to actual conditions, and in practice process, by constantly grinding for inventor
Study carefully discovery, for the more apparent paper product of paper lines, such as rice paper, smaller amplification factor, such as 80 may be used
Times；And for some by the more unsharp paper product of paper lines of secondary pulp production, such as copy paper etc. then can be with
Using larger amplification factor, such as 120 times.
Step S103：The rgb value of the first paper lines image of paper product to be compared described in acquisition, obtains first
Rgb value obtains the rgb value of the first paper lines image with reference to paper product, obtains the second rgb value.
When the first paper lines image for obtaining paper product to be compared and the first paper lines image with reference to paper product
Afterwards, in order to than treat comparison paper product the first paper lines image and with reference to paper product the first paper lines image whether phase
Together, it needs to obtain the rgb value of the first paper lines image of paper product compare respectively and described refers to papery
The rgb value of the first paper lines image of product, and the method for obtaining image rgb value is existing technology, in order to better
Method provided in this embodiment is described, does not run business into particular one and states herein.
Step S104：First rgb value and second rgb value are compared, when first rgb value and described
When two rgb values are unequal, then paper product to be compared described in judgement has uniqueness.
In practice process, when first rgb value and equal second rgb value, for the ease of further accurate
The uniqueness of true certification paper product to be compared, as a preferred mode, can obtain respectively again paper product to be compared and
Second with reference to the second same area of paper product treats that contrast images are compared, i.e., the uniqueness authenticating party of above-mentioned paper product
Method further includes：
When first rgb value and equal second rgb value, respectively obtain described in paper product to be compared and institute
State the second same area with reference to paper product second treats contrast images；
Amplify described second and treat contrast images, obtain the second paper lines image；
The rgb value of the second paper lines image of paper product to be compared described in acquisition, obtains third rgb value, obtains
The rgb value of the second paper lines image with reference to paper product, obtains the 4th rgb value；
When the third rgb value and unequal the 4th rgb value, then paper product to be compared described in judgement has uniquely
Property.
It should be noted that technical solution principle and the principle phase of preceding method in above-mentioned further verification process
Together, something in common can refer to the description of preceding method.
In practice process, for the ease of carrying out data preservation to the paper product to be compared Jing Guo uniqueness certification, as
The paper product to be compared Jing Guo uniqueness certification can be numbered in a kind of preferred mode, can be according to the paper to be compared
Type, certification date, rgb value of matter product etc. are numbered, and the number and the paper product to be compared are stored in database, and
The incidence relation between the number and the paper patterned feature of the paper product to be compared is created, so that the later stage investigates.And relationship
The establishment of type database and data inputting are existing technology, do not run business into particular one and state herein.
The authentication method of paper product uniqueness provided in an embodiment of the present invention, by obtaining treating for content and shape all same
For the first of first same area of comparison paper product and reference paper product after contrast images, comparison diagram is treated in amplification described first
Picture obtains the first paper lines image of the paper product to be compared and the first paper lines figure with reference to paper product
Picture.It gets the first rgb value of the first paper lines image of paper product compare respectively again and described refers to papery
Second rgb value of the first paper lines image of product, by judging whether the first rgb value and the second rgb value are equal, carry out certification and treat
The uniqueness of paper product is compared, so as to improve the paper product of the same type without number printed, can not also be carried out at present only
The problem of certification of one property.
Referring to Fig. 3, a kind of authentication device of paper product uniqueness provided in an embodiment of the present invention, the authentication device
Realization principle and effect are identical with preceding method embodiment, and the embodiment of the present invention does not address part, can refer to preceding method implementation
Example corresponding portion.Described device including first treat contrast images obtaining unit 201, the first paper lines image acquiring unit 202,
First image rgb value obtaining unit 203 and the first rgb value comparison unit 204.Wherein,
Described first treats contrast images obtaining unit 201, for obtaining paper product to be compared respectively and with reference to paper product
The first same area first treat contrast images, the paper product to be compared and described refer to paper product content and shape phase
Together.
First treats contrast images obtaining unit 201, including：
Image coordinate creates subelement, for being pre-created coordinate system；
Image interception subelement, in the coordinate system pre-established, obtain respectively described in paper product to be compared and
The first of the same coordinate range with reference to paper product treats contrast images.
The first paper lines image acquiring unit 202 treats contrast images for amplifying described first, obtains the first paper
Open lines image.
The first paper lines image acquiring unit 202, including
First image magnification parameter obtains subelement, for obtaining image magnification rule and amplification factor；
First image magnification subelement, for amplifying rule and amplification factor, amplification described first according to described image
It treats contrast images, obtains the first paper lines image.
Described first image rgb value obtaining unit 203, for obtaining the first paper line of the paper product to be compared
The rgb value of road image obtains the first rgb value, obtains the rgb value of the first paper lines image with reference to paper product,
Obtain the second rgb value.
The first rgb value comparison unit 204 for comparing first rgb value and second rgb value, works as institute
When stating the first rgb value and unequal second rgb value, then paper product to be compared described in judgement has uniqueness.
In practice process, when first rgb value and equal second rgb value, for the ease of further accurate
The uniqueness of true certification paper product to be compared, as a preferred mode, can obtain respectively again paper product to be compared and
Second with reference to the second same area of paper product treats that contrast images are compared, i.e., the uniqueness certification dress of above-mentioned paper product
It puts and further includes：
Second treats contrast images obtaining unit, for when first rgb value and equal second rgb value, point
Not Huo get described in paper product to be compared and second same area with reference to paper product second treat contrast images.
Second paper lines image acquiring unit treats contrast images for amplifying described second, obtains the second paper lines
Image；
The second paper lines image acquiring unit, including：
Second image magnification parameter obtains subelement, for obtaining image magnification rule and amplification factor；
Second image magnification subelement, for amplifying rule and amplification factor, amplification described second according to described image
It treats contrast images, obtains the second paper lines image.
Second image rgb value obtaining unit, for obtaining the second paper lines image of the paper product to be compared
Rgb value, obtain third rgb value, obtain the rgb value of the second paper lines image with reference to paper product, obtain the
Four rgb values；
Second rgb value comparison unit, for comparing the third rgb value and the 4th rgb value, when the third
When rgb value and unequal the 4th rgb value, then paper product to be compared described in judgement has uniqueness.
The authentication device of paper product uniqueness provided in an embodiment of the present invention, by obtaining treating for content and shape all same
For the first of first same area of comparison paper product and reference paper product after contrast images, comparison diagram is treated in amplification described first
Picture obtains the first paper lines image of the paper product to be compared and the first paper lines figure with reference to paper product
Picture.It gets the first rgb value of the first paper lines image of paper product compare respectively again and described refers to papery
Second rgb value of the first paper lines image of product, by judging whether the first rgb value and the second rgb value are equal, carry out certification and treat
The uniqueness of paper product is compared, so as to improve the paper product of the same type without number printed, can not also be carried out at present only
The problem of certification of one property.
Referring to Fig. 4, the authentication device 500 of another paper product uniqueness that the embodiment of the present invention also provides, including：Processing
Device 501, memory 502, bus 503 and communication interface 504, the processor 501, communication interface 504 and memory 502 pass through
Bus 503 connects；Processor 501 is used to perform the executable module stored in memory 502, such as computer program.
Wherein, memory 502 may include high-speed random access memory (RAM：Random Access Memory),
Non-labile memory (non-volatile memory), for example, at least a magnetic disk storage may be further included.By extremely
A few communication interface 504 (can be wired or wireless) is realized logical between the system network element and at least one other network element
Letter connection can use internet, wide area network, local network, Metropolitan Area Network (MAN) etc..
Bus 503 can be isa bus, pci bus or eisa bus etc..The bus can be divided into address bus, number
According to bus, controlling bus etc..For ease of representing, only represented in Fig. 4 with a four-headed arrow, it is not intended that an only bus
Or a type of bus.
Wherein, for memory 502 for storing program, the processor 501 performs the journey after execute instruction is received
Sequence, the method performed by device that the stream process that aforementioned any embodiment of the embodiment of the present invention discloses defines can be applied to handle
It is realized in device 501 or by processor 501.
Processor 501 may be a kind of IC chip, have the processing capacity of signal.It is above-mentioned during realization
Each step of method can be completed by the integrated logic circuit of the hardware in processor 501 or the instruction of software form.On
The processor 501 stated can be general processor, including central processing unit (Central Processing Unit, abbreviation
CPU), network processing unit (Network Processor, abbreviation NP) etc.；It can also be digital signal processor (DSP), special
Integrated circuit (ASIC), ready-made programmable gate array (FPGA) either other programmable logic device, discrete gate or transistor
Logical device, discrete hardware components.It can realize or perform disclosed each method, step and the logic in the embodiment of the present invention
Block diagram.General processor can be microprocessor or the processor can also be any conventional processor etc..With reference to this hair
The step of method disclosed in bright embodiment, can be embodied directly in hardware decoding processor and perform completion or be handled with decoding
Hardware and software module combination in device perform completion.Software module can be located at random access memory, flash memory, read-only memory,
In the storage medium of this fields such as programmable read only memory or electrically erasable programmable memory, register maturation.This is deposited
Storage media is located at memory 502, and processor 501 reads the information in memory 502, and the step of the above method is completed with reference to its hardware
Suddenly.
It should be noted that the technique effect of the device that the embodiment of the present invention is provided, realization principle and generation is with before
It is identical to state embodiment of the method, to briefly describe, device embodiment part does not refer to part, can refer to phase in preceding method embodiment
Answer content.
It should be noted that in several embodiments provided herein, it should be understood that disclosed system, dress
It puts and method, can realize by another way.The apparatus embodiments described above are merely exemplary, for example, institute
The division of unit is stated, only a kind of division of logic function there can be other dividing mode in actual implementation.
It should be noted that the unit illustrated as separating component may or may not be it is physically separate
, the component shown as unit may or may not be physical unit, you can be located at a place or also may be used
To be distributed in multiple network element.Some or all of unit therein can be selected according to the actual needs to realize this reality
Apply the purpose of a scheme.In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit,
Can also be that each unit is individually physically present, can also two or more units integrate in a unit.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, that is made any repaiies
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of authentication method of paper product uniqueness, which is characterized in that described applied to the authentication device of paper product uniqueness
Method includes：
Paper product to be compared is obtained respectively and the first same area with reference to paper product first treats contrast images, it is described to treat pair
It is more identical with shape than paper product and the reference paper product content；
Amplify described first and treat contrast images, obtain the first paper lines image；
The rgb value of the first paper lines image of paper product to be compared described in acquisition, obtains the first rgb value, described in acquisition
With reference to the rgb value of the first paper lines image of paper product, the second rgb value is obtained；
First rgb value and second rgb value are compared, when first rgb value and second rgb value are unequal
When, then paper product to be compared described in judgement has uniqueness.
2. the authentication method of paper product uniqueness according to claim 1, which is characterized in that the paper product uniqueness
Authentication method further includes：
When first rgb value and equal second rgb value, respectively obtain described in paper product to be compared and the ginseng
Examine the second same area of paper product second treats contrast images；
Amplify described second and treat contrast images, obtain the second paper lines image；
The rgb value of the second paper lines image of paper product to be compared described in acquisition, obtains third rgb value, described in acquisition
With reference to the rgb value of the second paper lines image of paper product, the 4th rgb value is obtained；
When the third rgb value and unequal the 4th rgb value, then paper product to be compared described in judgement has uniqueness.
3. the authentication method of paper product uniqueness according to claim 1, which is characterized in that the amplification described first is treated
Contrast images obtain the first paper lines image, including：
Obtain image magnification rule and amplification factor；
Rule and amplification factor are amplified according to described image, amplification described first treats contrast images, obtains first paper
Lines image.
4. the authentication method of paper product uniqueness according to claim 2, which is characterized in that the amplification described second is treated
Contrast images obtain the second paper lines image, including：
Obtain image magnification rule and amplification factor；
Rule and amplification factor are amplified according to described image, amplification described second treats contrast images, obtains second paper
Lines image.
5. the authentication method of paper product uniqueness according to claim 1, which is characterized in that treated described in the acquisition respectively
Compare paper product and first same area with reference to paper product described first treats contrast images, including：
In the coordinate system pre-established, respectively obtain described in paper product to be compared and the same coordinate with reference to paper product
The first of range treats contrast images.
6. a kind of authentication device of paper product uniqueness, which is characterized in that including：
First treats contrast images obtaining unit, for obtaining paper product to be compared and the first same zone with reference to paper product respectively
The first of domain treats contrast images, and the paper product to be compared and the reference paper product content are identical with shape；
First paper lines image acquiring unit treats contrast images for amplifying described first, obtains the first paper lines image；
First image rgb value obtaining unit, for obtaining the RGB of the first paper lines image of the paper product to be compared
Value obtains the first rgb value, obtains the rgb value of the first paper lines image with reference to paper product, obtains the 2nd RGB
Value；
First rgb value comparison unit, for comparing first rgb value and second rgb value, when first rgb value
And second rgb value it is unequal when, then paper product to be compared described in judgement has uniqueness.
7. the authentication device of paper product uniqueness according to claim 6, which is characterized in that the paper product uniqueness
Authentication device further includes：
Second treats contrast images obtaining unit, for when first rgb value and equal second rgb value, obtaining respectively
Obtain the paper product to be compared and second same area with reference to paper product second treats contrast images；
Second paper lines image acquiring unit treats contrast images for amplifying described second, obtains the second paper lines image；
Second image rgb value obtaining unit, for obtaining the RGB of the second paper lines image of the paper product to be compared
Value obtains third rgb value, obtains the rgb value of the second paper lines image with reference to paper product, obtains the 4th RGB
Value；
Second rgb value comparison unit, for comparing the third rgb value and the 4th rgb value, when the third rgb value
And the 4th rgb value it is unequal when, then paper product to be compared described in judgement has uniqueness.
8. the authentication device of paper product uniqueness according to claim 6, which is characterized in that the first paper lines figure
Picture obtaining unit, including：
First image magnification parameter obtains subelement, for obtaining image magnification rule and amplification factor；
First image magnification subelement, for amplifying rule and amplification factor according to described image, amplification described first is treated pair
Than image, the first paper lines image is obtained.
9. the authentication device of paper product uniqueness according to claim 7, which is characterized in that the second paper lines figure
Picture obtaining unit, including：
Second image magnification parameter obtains subelement, for obtaining image magnification rule and amplification factor；
Second image magnification subelement, for amplifying rule and amplification factor according to described image, amplification described second is treated pair
Than image, the second paper lines image is obtained.
10. the authentication device of paper product uniqueness according to claim 6, which is characterized in that first treats that contrast images obtain
Unit is obtained, including：
Image coordinate creates subelement, for being pre-created coordinate system；
Image interception subelement, in the coordinate system pre-established, obtain respectively described in paper product to be compared and described
First with reference to the same coordinate range of paper product treats contrast images.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510058672.2A CN104573677B (en) | 2015-01-19 | 2015-02-04 | The authentication method and device of paper product uniqueness |
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| CN1904949A (en) * | 2006-07-31 | 2007-01-31 | 樊晓青 | Anti-fake method of recording carrying medium self character |
| CN101196976A (en) * | 2006-12-05 | 2008-06-11 | 佳能株式会社 | Image processing apparatus and control method therefor |
| US8836812B2 (en) * | 2012-03-21 | 2014-09-16 | Honda Elesys Co., Ltd. | Image processing device, image processing method, and image processing program |
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| CN1904949A (en) * | 2006-07-31 | 2007-01-31 | 樊晓青 | Anti-fake method of recording carrying medium self character |
| CN101196976A (en) * | 2006-12-05 | 2008-06-11 | 佳能株式会社 | Image processing apparatus and control method therefor |
| US8836812B2 (en) * | 2012-03-21 | 2014-09-16 | Honda Elesys Co., Ltd. | Image processing device, image processing method, and image processing program |
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