CN107480480A - A kind of method and device of copyright ownership tracking - Google Patents
A kind of method and device of copyright ownership tracking Download PDFInfo
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- CN107480480A CN107480480A CN201710346169.6A CN201710346169A CN107480480A CN 107480480 A CN107480480 A CN 107480480A CN 201710346169 A CN201710346169 A CN 201710346169A CN 107480480 A CN107480480 A CN 107480480A
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- watermarking images
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- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 9
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- 239000005022 packaging material Substances 0.000 description 7
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
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Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/10—Protecting distributed programs or content, e.g. vending or licensing of copyrighted material ; Digital rights management [DRM]
- G06F21/16—Program or content traceability, e.g. by watermarking
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T1/00—General purpose image data processing
- G06T1/0021—Image watermarking
Abstract
The invention discloses a kind of copyright ownership method for tracing, including step：Step S200 obtains the hologram of watermarking images information from product to be tested or radium-shine template to be tested；Step S300 extracts copyright information to be tested from the hologram of the watermarking images information of acquisition；Whether step S400 is judged in the copyright information to be tested containing the copyright information for needing to be followed the trail of；Step 500 determines that copyright ownership follows the trail of state according to the result of the judgement of the step S400.In order to solve the above technical problems, the present invention provides a kind of copyright ownership method for tracing and device, watermark information and hologram are organically blent into the false proof copyright tracked information of generation, strong evidence is provided for the copyright tracking of copyright owner.
Description
Technical field
The present invention relates to Laser Holographic Counterfeit-proof Technique field, more particularly to the method and dress of a kind of tracking of copyright ownership
Put.
Background technology
In radium-shine packaging material industry, radium-shine material is all by radium-shine masterplate by the processes of various imprinting and copyings
On micro-structural picture and text texture be transferred on various plastic film materials, just can not produce various each of style without radium-shine masterplate
The radium-shine packaging material of kind, therefore the radium-shine masterplate with specific picture and text texture information is exactly the key portion of laser packaging product
Part.
The production process route of radium-shine masterplate：----electroforming replicates work to-holographic plate-making --- the silver-colored electroforming of-spray --- to text design
Make version.Manufacturing process：1st, designed and produced with universal design graphics software (photoshop, corledraw, illustrator etc.)
Done laser pattern；2nd, to each region color separation of pattern, different space frequency and space angle are set, goes out the film or makes photoetching text
Part；3rd, using laser interference principle, by stereolithography process or dot matrix photolithography method, pattern is imaged on photoetching hectograph (one
Kind by photoresist coating photosensitive material on the glass substrate) on record interference fringe, then obtain holography by development
Figure.Hologram is made up of the grating fringe of the different frequency different angle of concavo-convex relief type under microcosmic, and we produce various
Its essence of radium-shine packaging material seeks to get off this microstructure replication.But photoresist is very fragile, it is easily damaged, can not criticizes
Amount replicates, therefore need to be solidificated in these micro-structural stripeds on wear-resistant reusable hard metal material；4th, spray silver, use
The method of chemical silvering forms one layer of silver conductive layer in photoresist hologram surface, makes it conductive；5th, electroforming, there will be silver-colored conduction
The photoetching hectograph of layer is put into the electrolyte containing nickel ion as negative electrode, using electroplating principle is electrolysed, plated on the silver layer of negative electrode
Upper metallic nickel simultaneously deposits to certain thickness；6th, the version for depositing to certain thickness nickel metal is taken out, takes glass plate off, wash metal off
The photoresist on version top layer, just obtain a hologram metal matrix for carrying mirror image pattern；7th, it is same, by hologram metal matrix
Be put into electroforming apparatus as negative electrode again, two substituting metal masterplates of a mirror image can be obtained again, by that analogy it is reproducible go out son
Grandson's descendants metal matrix；8th, hologram pattern is turned into imprinting and copying on various plastic materials with such metal matrix can,
Just obtain holographic (radium-shine) product.
Existing holographic plate-making generally only focuses on the improvement to anti-counterfeiting technology feature, the measure to itself copyright protection compared with
It is few, a miniature word or pattern typically just is hidden in ad-hoc location, or a special mark is hidden, but such picture and text
Mark cannot function as the evidence of copyright ownership.Thus, often there is violator to have using this micro relief profile mould of radium-shine masterplate
Reproducible characteristic, replicated by the method that improper channel obtains offspring's version or directly turns over manufactured goods material and steal stencil structure
And claim legal imitated production unbearably with money product to encroach on the rights and interests of copyright owner.
The radium-shine masterplate of copyright owner after stolen because without favourable evidence come prove the source of pirate products or
Evidence is not complete and is unable to right-safeguarding, and especially some general textures seem that much like masterplate is just more difficult to distinguish imitated and piracy.
Need to employ specialized instrument and equipment by professional institution's identification, spend longer qualification cycle.For such case, in order to effective
It is pirate to take precautions against radium-shine masterplate, find it is pirate after quick discriminating copyright ownership and evidence can be provided to put to the proof copy right piracy,
We have invented a kind of method of recognizable copyright ownership tracking.
The content of the invention
In order to solve the above technical problems, the present invention provides a kind of copyright ownership method for tracing and device, by watermark information with
Hologram organically blends the false proof copyright tracked information of generation, and strong evidence is provided for the copyright tracking of copyright owner.
Technical scheme provided by the invention is as follows：
A kind of copyright ownership method for tracing, including step：Step S200 is from product to be tested or radium-shine template to be tested
Obtain the hologram of watermarking images information；Step S300 extracts to be tested from the hologram of the watermarking images information of acquisition
Copyright information；Whether step S400 is judged in the copyright information to be tested containing the copyright for needing to be followed the trail of
Information；Step 500 determines that copyright ownership follows the trail of state according to the result of the judgement of the step S400.
In the present invention, the original method for only doing copyright protection by adding the picture and text secret mark without attaching information of contrast, this
Invention be characterised by that a digital watermarking will be embedded in pattern and there is hiding, can as pattern element presentation and
Degree of not affecting the appearance, pattern displaying area is big, can be transferred with stencil duplicating without losing, and can be reflected by intelligent terminal APP
Not, it is more convenient to differentiate.
Preferably, it is characterised in that also include：Step S100 is embedded in radium by the copyright information to be followed the trail of
Penetrate in masterplate.
Preferably, the step S100 includes：S110, watermark region is selected on the original image, in the watermark region
It is embedded in the watermark information containing the copyright information, watermark figure of the generation containing the copyright information to be followed the trail of
Picture；The watermarking images are divided into multiple different regional graphics by the default expression effect of S120, basis, and are each area
Spatial frequency parameter corresponding to the figure setting of domain；S130, the watermarking images are pre-processed, obtain at least one passage ash
Spend image；S140, obtain the passage gray level image each pixel gray value；The default corresponding relation of S150, basis arranges
Table obtains grating angle value corresponding with the gray value of each pixel of the passage gray level image, and according to the passage
Spatial frequency parameter corresponding to each pixel affiliated area figure of gray level image obtains gratings strips corresponding to each pixel
Line frequency；S160, according to preset rules by the grating angle value of each pixel of the passage gray level image of acquisition
Packet is generated with corresponding grating fringe frequency, and photoetching is carried out on photolithography plate according to the packet, is obtained after developed
Obtain hologram with watermarked information.
Preferably, the step S300 includes：The light letter of hologram diffraction on S310, the collection watermarking images information
Breath；S320, the holographic data according to the optical information acquisition copyright information to be tested；Default pair of S330, basis
Relation list is answered to obtain view data corresponding with the holographic data；S340, using preset algorithm calculate described image data,
Obtain the watermark feature value of the copyright information to be tested.
Preferably, step S400 further comprises：S410, the watermark feature for judging the copyright information to be tested
Whether the watermark feature value of the to be followed the trail of copyright information is included in value.
Preferably, the holographic data includes the grating angle value of each pixel on hologram；Described image packet
Include the gray value of each pixel on hologram.
A kind of device of copyright ownership tracking, including：Watermarking images acquisition module, from product to be tested or to be tested radium-shine
Watermarking images information is obtained in template；Copyright extraction module, according to being obtained from the watermarking images acquisition module
Copyright information to be tested is extracted in watermarking images information；Copyright judge module, judge to extract mould from copyright
Whether the copyright information to be tested extracted in block is containing the copyright information for needing to be followed the trail of；Follow the trail of state confirmation mould
Block, according to the judged result of the copyright judge module, determine that copyright ownership follows the trail of state.
Preferably, in addition to：Copyright information setup module 100, the copyright information to be followed the trail of is embedded in
Into radium-shine masterplate.
Preferably, the copyright information setup module includes：Watermarking images generate submodule, select on the original image
Determine watermark region, be embedded in the watermark information containing the copyright information in the watermark region, generation is waited to chase after containing described
The watermarking images of the copyright information of track；Watermarking images set submodule, according to default expression effect by the watermarking images
Multiple different regional graphics are divided into, and are spatial frequency parameter corresponding to each regional graphics setting；Watermarking images
Submodule is pre-processed, the watermarking images are pre-processed, obtain at least one passage gray level image；Gray value obtains submodule
Block, obtain the gray value of each pixel of the passage gray level image；Grating angle value acquisition submodule, according to default correspondence
Relation list obtains grating angle value corresponding with the gray value of each pixel of the passage gray level image, grating fringe frequency
Rate acquisition submodule, obtained according to spatial frequency parameter corresponding to each pixel affiliated area figure of the passage gray level image
Take grating fringe frequency corresponding to each pixel；Packet generation module, it is according to preset rules that the passage of acquisition is grey
Spend the grating angle value and corresponding grating fringe frequency generation packet of each pixel of image, hologram generation mould
Block, photoetching is carried out on photolithography plate according to the packet, hologram with watermarked information is obtained after developed.
Preferably, the copyright extraction module includes：Acquisition module, gather hologram in the watermarking images information
The optical information of diffraction；Holographic data acquisition module, the complete of the copyright information to be tested is obtained according to the optical information
Cease data；Image data acquisition module, view data corresponding with the holographic data is obtained according to default corresponding relation list；
Computing module, described image data are calculated using preset algorithm, obtain the watermark feature of the copyright information to be tested
Value.
Compared with prior art, the present invention provides a kind of method and device of copyright ownership tracking, at least brings with next
Kind technique effect:
1st, the present invention embedded watermark information in original image, the further embedded copyright information in watermark information,
And watermark information is shown by the diffraction of holographic microstructure, being perfectly combined for digital watermark technology and holographic technique is realized,
Brightness and the aesthetics of hologram can not only be retained, meanwhile, reduce interference of the hologram when watermark information is extracted in identification
And False Rate, substantially reduce the response time.
2nd, the present invention is combined watermark information with hologram, the gray value by watermarking images and the grating angle for photoetching
Angle value is corresponding, shows hiding information in the micro-structural of holography so as to realize, has both protected aesthetics and the brightness of hologram,
Also avoid disturbing the recognition of watermark information in hologram, solve the limitation of both connected applications in the prior art, extend
The application of digital watermarking, while add a kind of composite holographic anti-counterfeiting technology.
3rd, copyright information is embedded in anti-counterfei waterprint image information by the present invention, and existing anti-counterfeiting technology feature is entered
One step improves, and while anti-counterfeiting information marking effect is not influenceed, solves the problems, such as piracy tracking, is provided for copyright owner
Reliable foundation, meanwhile, further control the behavior of piracy.
Brief description of the drawings
Below by a manner of clearly understandable, preferred embodiment is described with reference to the drawings, the present invention is given furtherly
It is bright.
Fig. 1 is a kind of flow chart of one embodiment of the method for copyright ownership tracking of the present invention；
Fig. 2 is a kind of flow chart of another embodiment of the method for copyright ownership tracking of the present invention；
Fig. 3 is a kind of flow chart of another embodiment of the method for copyright ownership tracking of the present invention；
Fig. 4 is a kind of schematic diagram of specific embodiment of the present invention；
Fig. 5 is the schematic diagram of another specific embodiment of the invention；
Fig. 6 is the schematic diagram of another specific embodiment of the invention；
Fig. 7 is the schematic diagram of another specific embodiment of the present invention.
Fig. 8 is a kind of structure chart of one embodiment of the device of copyright ownership tracking of the present invention.
Embodiment
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, control is illustrated below
The embodiment of the present invention.It should be evident that drawings in the following description are only some embodiments of the present invention, for
For those of ordinary skill in the art, on the premise of not paying creative work, other can also be obtained according to these accompanying drawings
Accompanying drawing, and obtain other embodiments.
To make simplified form, part related to the present invention is only schematically show in each figure, they are not represented
Its practical structures as product.In addition, so that simplified form readily appreciates, there is identical structure or function in some figures
Part, one of those is only symbolically depicted, or only marked one of those.Herein, "one" is not only represented
" only this ", the situation of " more than one " can also be represented.
The present invention provides a kind of one embodiment of copyright ownership method for tracing, and Fig. 1 is a kind of copyright ownership method for tracing
Flow chart, including step：Step S200 obtains the complete of watermarking images information from product to be tested or radium-shine template to be tested
Breath figure；Step S300 extracts copyright information to be tested from the hologram of the watermarking images information of acquisition；Step
Whether S400 is judged in the copyright information to be tested containing the copyright information for needing to be followed the trail of；Step 500 according to institute
The result of step S400 judgement is stated, determines that copyright ownership follows the trail of state.
Specifically, in the present embodiment, with reference to shown in figure 1；When discovery certain icon and developer or production on the market
When certain pattern-information of person is consistent, the producer or developer need to be tracked the mould for generating certain pattern, in order to avoid
Cause the economic loss of developer；Therefore, mould development business detects to the suspicious patterns information of discovery first, believes from pattern
Watermark information checking copyright is extracted in breath.By all having been carried on holographic masterplate and its radium-shine packaging material and product of printing
Copyright digital watermark, as long as so the copyright watermark information that identification is verified on masterplate or product just can recognize that identification copyright is returned
Category, if contain copyright information in radium-shine template to be detected, or in pattern-information to be detected, then it is judged as same
Ancestor's product, is otherwise piracy；When being identified for copyright information, equipment used includes：Pass through the knowledge installed in intelligent terminal
Other evaluation program can differentiate that watermark information whether there is or whether correct.
In the present invention, the original method for only doing copyright protection by adding the picture and text secret mark without attaching information of contrast, this
Invention be characterised by that a digital watermarking will be embedded in pattern and there is hiding, can as pattern element presentation and
Degree of not affecting the appearance, pattern displaying area is big, can be transferred with stencil duplicating without losing, and can be reflected by intelligent terminal APP
Not, it is more convenient to differentiate.
Preferably, in addition to：Step S100 is embedded in the copyright information to be followed the trail of in radium-shine masterplate.
Preferably, the step S100 includes：S110, watermark region is selected on the original image, in the watermark region
It is embedded in the watermark information containing the copyright information, watermark figure of the generation containing the copyright information to be followed the trail of
Picture；The watermarking images are divided into multiple different regional graphics by the default expression effect of S120, basis, and are each area
Spatial frequency parameter corresponding to the figure setting of domain；S130, the watermarking images are pre-processed, obtain at least one passage ash
Spend image；S140, obtain the passage gray level image each pixel gray value；The default corresponding relation of S150, basis arranges
Table obtains grating angle value corresponding with the gray value of each pixel of the passage gray level image, and according to the passage
Spatial frequency parameter corresponding to each pixel affiliated area figure of gray level image obtains gratings strips corresponding to each pixel
Line frequency；S160, according to preset rules by the grating angle value of each pixel of the passage gray level image of acquisition
Packet is generated with corresponding grating fringe frequency, and photoetching is carried out on photolithography plate according to the packet, is obtained after developed
Obtain hologram with watermarked information.
Specifically, another embodiment is provided on the basis of above example；With reference to shown in figure 2；Developer need by
Set with copyright information in a mold, for use in piracy tracking；Embedded copyright information is provided in the present embodiment
Process；Default copyright digital watermark information is embedded in by design configuration by embedded mobile GIS and generates the figure containing digital watermarking
Picture, the watermarking images be with hiding, then using this watermarking images as a design element or pattern for laser plate with other
Laser pattern is together converted into holographic plate-making data, and holographic plate-making technical matters routinely carries out holographic plate-making, electroforming work
Make the mould pressing process after masterplate routinely and all kinds of radium-shine packaging materials are made in laser holographic pattern.
The present invention embedded watermark information in original image, the further embedded copyright information in watermark information, and
Watermark information is shown by the diffraction of holographic microstructure, realizes being perfectly combined for digital watermark technology and holographic technique, no
Brightness and the aesthetics of hologram can only be retained, meanwhile, reduce hologram identification extract watermark information when interference and
False Rate, substantially reduce the response time.
Preferably, the step S300 includes：The light letter of hologram diffraction on S310, the collection watermarking images information
Breath；S320, the holographic data according to the optical information acquisition copyright information to be tested；Default pair of S330, basis
Relation list is answered to obtain view data corresponding with the holographic data；S340, using preset algorithm calculate described image data,
Obtain the watermark feature value of the copyright information to be tested.
Preferably, step S400 further comprises：S410, the watermark feature for judging the copyright information to be tested
Whether the watermark feature value of the to be followed the trail of copyright information is included in value.
Preferably, the holographic data includes the grating angle value of each pixel on hologram；Described image packet
Include the gray value of each pixel on hologram.
Specifically, another embodiment is provided on the basis of above example；With reference to shown in figure 3；Carrying out copyright letter
Breath identification process includes：Copyright digital watermark has all been carried on holographic masterplate and its radium-shine packaging material and product of printing,
So as long as the copyright watermark information that identification is verified on masterplate or product just can recognize that identification copyright ownership.By installed in intelligence
Can the identification evaluation program of mobile phone terminal can differentiate that watermark information whether there is or whether correct.
The embodiment of the application is as follows：
1st, the pattern for needing to add watermark information in respective drawings or word or shading whole or their phase are taken
Answer the local pattern of accompanying drawing；
2nd, respective drawings are carried out into processing to import in the program with watermarking algorithm module, copyright information is set
It is defeated by embedded mobile GIS with default watermark information (random generation or the string number or figure that are generated by certain coding rule)
Go out to carry the pattern of watermark information；
3rd, 2 gained patterns are adjusted into gray threshold by " a kind of method for generating holograms with watermarked information ", calculated
The each corresponding grating fringe frequency of pixel and angle, generate packet；
4th, packet is imported into holographic plate-making system, routinely holographic plate-making technological process is made a plate；
5th, electroforming working version, molding production radium-shine material；
Default copyright digital watermark information and key are embedded in by design configuration generation by embedded mobile GIS and contain digital water
The image of print, the watermarking images are the design element or pattern with hiding, then using this watermarking images as laser plate
Holographic plate-making data are together converted into other laser patterns, holographic plate-making technical matters routinely carries out holographic plate-making, electricity
All kinds of radium-shine packaging materials are made in laser holographic pattern by the mould pressing process after casting work masterplate processed routinely.
In the application of the present invention, the generation of each watermarking images information, produced by radium-shine molding part；Cause
This is needed in the radium-shine mould of the watermarking images compacting containing copyright information；Thus include and believe containing copyright
The confirmation process of the generating process of the watermarking images of breath, the identification process of copyright information, and copyright information, therefore
Have following：
In addition, in this application, the watermarking images referred to then it include being embedded in interior copyright information；
First, watermark information is embedded in using at least one passage of the default watermarking algorithm in the watermarking images, generation contains
The watermarking images of watermark information；
Original image can be an anti-counterfeiting mark or a kind of false-proof texture, usually be believed with client LOGO, pattern, word
Breath etc. is used as design element or material, then the factor such as integrated anti-counterfeit Technological expression effect, the requirement of mark manufacture craft, dimensions
Design a composition brand-new false proof graph image attractive in appearance.Watermark region is selected by client or designer in the present invention
Which choose, in this design process, it is contemplated that watermark information and the final effect in this region are embedded in region or figure
Fruit whether with other graphical effect harmonies；Further copyright information is designed in the form of watermark information；However,
Actual mechanical process can also determine to increase embedded watermark information again after layout determination.This just needs to select opposite face
The bigger figure of product does the watermark region of embedded watermark.
Watermark information be substantially a kind of digital secret information form of expression can numeral, letter, even pictorial pattern etc.,
Embedded watermark information refers to by specific watermarking algorithm to watermark region selected in design configuration in design configuration
Interior image enters line translation, by that can be specifically pair in the image in the embedded watermark region of coded system (weaving into 01 bit)
The parameter value of a certain passage of image enters line translation.Watermark information is embedded in by watermark region image using watermarking algorithm herein
A certain passage in export the watermarking images of RGB patterns again, it is therefore desirable to the watermark containing encryption can be just obtained after split tunnel
The passage gray level image of information.If the mould of output mode conversion is come with present in prior art in " watermark embedded software "
Block, the step for can also omitting.
2nd, the watermarking images are subjected to processing and are converted to holographic plate-making data；
Wherein processing is carried out to watermarking images to specifically include：The noise hum pattern of the watermarking images is obtained, is made an uproar described
Point hum pattern carries out channel separation, obtains the passage gray level image of at least one passage.
3rd, hologram is formed on photoetching hectograph according to the holographic plate-making data, specifically includes step：
The GTG threshold value of the passage gray level image is adjusted in the range of preset gray scale, obtains the passage gray level image
The gray value of each pixel；The GTG threshold value of passage gray level image is adjusted by establishing gradual change mapping model, can also be led to
The method for crossing change color range reaches same effect.Present invention design gray value and grating angle correspond, therefore, gray scale
Value essence is grating angle value, is exactly further the direction for controlling optical grating diffraction light, it is transferred into this preset gray scale scope
It is because diffraction luminous energy of the grating in the range of this is collected by camera gun carries out computing so as to be converted to electric signal.And
Grating angle diffraction light outside this scope can not be collected just by camera into invalid information.So for greatest extent
Coded signal entrained by record and reduction watermarking images, by GTG threshold value preferably in this preset gray scale scope.
The watermarking images are divided into by multiple different regional graphics according to default expression effect, and are each area
Spatial frequency parameter corresponding to the figure setting of domain；Region point is carried out for the passage gray level image for being embedded with watermark information
Cut, it is therefore an objective to different spatial frequency parameters is set for different zones figure, for realizing different micro-structural stripeds, with performance
Go out abundant color.
Obtained according to default corresponding relation list corresponding with the gray value of each pixel of the passage gray level image
Grating angle value, and the spatial frequency parameter according to corresponding to each pixel affiliated area figure of the passage gray level image
Obtain grating fringe frequency corresponding to each pixel；
According to preset rules by the grating angle value of each pixel of the passage gray level image of acquisition and right
The grating fringe frequency generation holographic plate-making data answered.The passage being embedded according to watermark information is different, can be divided into following several feelings
Condition：
1st, when being only embedded in watermark information in the single passage of watermarking images, according to the pixel number of passage gray level image
Amount generates dot matrix on photoetching hectograph, for exposing point by point.Wherein, the passage ash of the passage of wherein embedded watermark information is obtained
Image is spent, specifically obtains the noise hum pattern of watermarking images, noise hum pattern is subjected to channel separation, obtains embedded watermark letter
The passage gray level image of the passage of breath.
The gray value of each pixel of passage gray level image is obtained, and each picture is obtained according to default corresponding relation list
Grating angle value corresponding to the gray value of vegetarian refreshments, and each pixel affiliated area figure according to the passage gray level image
Corresponding spatial frequency parameter obtains grating fringe frequency corresponding to each pixel.
According to the grating angle value and grating fringe frequency of each pixel, corresponding pixel is enterprising on photoetching hectograph
Row photoetching.
Fig. 4 is a kind of schematic diagram of specific embodiment of the present invention.As shown in figure 4, A represents a picture of passage gray level image
Vegetarian refreshments, a represents a pixel of photoetching hectograph, when single channel is embedded in watermark information, in a pixels according to passage gray scale
The pixel A of image grating angle value and grating fringe frequency carries out photoetching.
2nd, when being embedded in watermark information in multiple passages of watermarking images, the number of the pixel on photoetching hectograph is improved
Amount, it is larger than the pixel quantity sum of multiple passages.It is specific as follows by taking two passages as an example：Obtain embedded watermark information
Two passages passage gray level image, specifically obtain watermarking images noise hum pattern, noise hum pattern is entered into row of channels
Separation, the passage gray level image of each passage is obtained respectively.The ash of each pixel in each passage gray level image is obtained respectively
Angle value, and grating angle value corresponding to the gray value of each pixel is obtained according to default corresponding relation list, and according to institute
Spatial frequency parameter corresponding to each pixel affiliated area figure of passage gray level image is stated to obtain corresponding to each pixel
Grating fringe frequency.The quantity for improving pixel on photoetching hectograph is the pixel quantity sum of two passage gray level images.Fig. 5
For the schematic diagram of another specific embodiment of the invention.As shown in figure 5, A represents a pixel of first passage gray level image
Point, B represent a pixel of another passage gray level image, and a, b, c, d represent a pixel of photoetching hectograph respectively,
When two passages are embedded in watermark information, photoetching hectograph a pixels according to the pixel A's of first passage gray level image
Grating angle value and grating fringe frequency carry out photoetching, photoetching hectograph b pixels according to another passage gray level image
Pixel B grating angle value and grating fringe frequency carries out photoetching, and remaining c pixels and d pixels are empty on photoetching hectograph
Lack, without photoetching.As shown in Figure 5, the resolution ratio of photoetching hectograph is 4 times of passage gray level image resolution ratio.
Above-described embodiment only enumerates two kinds of situations, including but not limited to above-mentioned two situations.If embedded in three passages
Enter watermark information, accordingly, need to only improve the resolution ratio of photoetching hectograph so that pixel quantity is more than three and led on photoetching hectograph
The pixel sum of road gray level image.Fig. 6 is the schematic diagram of another specific embodiment of the invention.As shown in fig. 6, A tables
Show a pixel of first passage gray level image, B represents a pixel of second passage gray level image, and C represents the
One pixel of three passage gray level images, a, b, c, d represent a pixel of photoetching hectograph respectively, in three passages
During embedded watermark information, photoetching hectograph a pixels according to the pixel A of first passage gray level image grating angle value
Carry out photoetching with grating fringe frequency, photoetching hectograph b pixels according to the pixel B of second passage gray level image light
Grid angle value and grating fringe frequency carry out photoetching, photoetching hectograph c pixels according to the picture of the 3rd passage gray level image
Vegetarian refreshments C grating angle value and grating fringe frequency carry out photoetching, remaining d pixels vacancy on photoetching hectograph, without light
Carve.
Fig. 7 is the schematic diagram of another embodiment of the present invention.As shown in fig. 7, A represents one of first passage gray level image
Pixel, B represent a pixel of second passage gray level image, and C represents a pixel of the 3rd passage gray level image
Point, a1, a2, a3, b1, b2, b3, c1, c2, c3 are respectively the pixel on photoetching hectograph, according to first passage gray level image
A pixels the photoetching on tri- pixels of a1, a2, a3 of grating angle value and grating fringe frequency, that is, pass through photoetching hectograph
Upper three pixels represent the A pixels of first passage gray level image, similarly, according to second passage gray level image
The grating angle value and grating fringe frequency of B pixels photoetching on tri- pixels of b1, b2, b3, according to the 3rd passage ash
Spend grating angle value and grating fringe the frequency photoetching on tri- pixels of c1, c2, c3 of the C pixels of image.
4th, the contour forging printing plate containing the hologram is formed in metallic nickel version by the way of electroforming；
One layer of silver conductive layer is formed in photoetching hectograph hologram surface using the method for chemical silvering, makes it conductive, will
There is the photoetching hectograph of silver conductive layer as negative electrode, be put into the electrolyte containing nickel ion, using electroplating principle is electrolysed, in negative electrode
Metallic nickel is plated on silver layer and deposits to certain thickness.The version for depositing to certain thickness nickel metal is taken out, takes glass plate off, washes
Fall the photoresist on metallograph top layer, just obtain a hologram metal matrix for carrying mirror image pattern, i.e. contour forging plate.
5th, by the contour forging plate by the hologram transfer on plastic material, generate anti-counterfeiting mark hum pattern
Picture.
Anti-counterfeiting mark frame of the present invention is formed by the laser pattern of embedded watermark information, the watermark letter
Breath is showed by the diffraction of holographic microstructure, has identifiability.The present invention is by identifying anti-counterfeiting mark frame
Realizing the false proof purpose of anti-counterfeiting mark frame, the present invention is perfectly combined by digital watermark technology and holographic technique,
Interference and False Rate of the hologram when watermark information is extracted in identification are reduced, substantially reduces the response time, while can protect
Stay the brightness of hologram and aesthetics on laser plate.
The copyright information identification process of the present invention is specific as follows：
The optical information of hologram diffraction on anti-counterfeiting mark frame is gathered, it is holographic according to corresponding to obtaining the optical information
Data.Wherein holographic data refers to the grating fringe frequency and grating angle value of each pixel.According to default corresponding relation
List acquisition view data corresponding with holographic data, wherein view data refer to the gray value of pixel.Pass through self-defined one
Individual default corresponding relation list, grating angle value and gray value are made into corresponding relation, obtain the gray value of each pixel.Using
Preset algorithm calculates the gray value, obtains watermark feature value, compare the watermark feature value and default watermark information whether
Match somebody with somebody, when the watermark feature value matches with the default watermark information, feed back watermark correct information.
Fig. 8 is a kind of structure chart of the device of copyright ownership tracking, a kind of device of copyright ownership tracking, including：Watermark
Image collection module 200, watermarking images information is obtained from product to be tested or radium-shine template to be tested；Copyright extracts mould
Block 300, copyright to be tested is extracted according in the watermarking images information obtained from the watermarking images acquisition module
Information；Copyright judge module 400, judge the copyright letter to be tested extracted from copyright extraction module
Whether breath is containing the copyright information for needing to be followed the trail of；State confirmation module 500 is followed the trail of, according to the copyright judge module
Judged result, determine that copyright ownership follows the trail of state.
Preferably, in addition to：Copyright information setup module 100, the copyright information to be followed the trail of is embedded in
Into radium-shine masterplate.
Preferably, the copyright information sets 100 pieces of mould to include：Watermarking images generate submodule 110, in original graph
As upper selected watermark region, the watermark information containing the copyright information is embedded in the watermark region, generation contains institute
State the watermarking images of copyright information to be followed the trail of；Watermarking images set submodule 120, according to default expression effect by described in
Watermarking images are divided into multiple different regional graphics, and are spatial frequency parameter corresponding to each regional graphics setting；
Watermarking images pre-process submodule 130, and the watermarking images are pre-processed, obtain at least one passage gray level image；Ash
Angle value acquisition submodule 140, obtain the gray value of each pixel of the passage gray level image；Grating angle value obtains submodule
Block 150, light corresponding with the gray value of each pixel of the passage gray level image is obtained according to default corresponding relation list
Grid angle value；Grating fringe frequency acquisition submodule 160, according to each pixel affiliated area figure of the passage gray level image
Spatial frequency parameter corresponding to shape obtains grating fringe frequency corresponding to each pixel；Packet generation module 170, according to pre-
If the grating angle value and corresponding grating fringe frequency of each pixel of the regular passage gray level image by acquisition
Rate generates packet；Hologram generation module 180, photoetching is carried out on photolithography plate according to the packet, obtained after developed
Hologram with watermarked information.
Preferably, the copyright extraction module 300 includes：Acquisition module 310, gather in the watermarking images information
The optical information of hologram diffraction；Holographic data acquisition module 320, the copyright to be tested is obtained according to the optical information
The holographic data of information；Image data acquisition module 330, obtained according to default corresponding relation list corresponding with the holographic data
View data；Computing module 340, described image data are calculated using preset algorithm, obtain the copyright to be tested
The watermark feature value of information.
It should be noted that the content such as information exchange, implementation procedure in the present apparatus between each module and the above method are real
Apply example and be based on same design, particular content can be found in the narration in the inventive method embodiment, and here is omitted.
It should be noted that above-described embodiment can independent assortment as needed.Described above is only the preferred of the present invention
Embodiment, it is noted that for those skilled in the art, do not departing from the premise of the principle of the invention
Under, some improvements and modifications can also be made, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of copyright ownership method for tracing, it is characterised in that including step：
Step S200 obtains the hologram of watermarking images information from product to be tested or radium-shine template to be tested；
Step S300 extracts copyright information to be tested from the hologram of the watermarking images information of acquisition；
Whether step S400 is judged in the copyright information to be tested containing the copyright information for needing to be followed the trail of；
Step 500 determines that copyright ownership follows the trail of state according to the result of the judgement of the step S400.
2. the method for radium-shine masterplate copyright ownership tracking according to claim 1, it is characterised in that also include：
Step S100 is embedded in the copyright information to be followed the trail of in radium-shine masterplate.
3. the method for copyright ownership tracking according to claim 2, it is characterised in that the step S100 includes：
S110, watermark region is selected on the original image, be embedded in the watermark region containing the copyright information
Watermark information, watermarking images of the generation containing the copyright information to be followed the trail of；
The watermarking images are divided into multiple different regional graphics by the default expression effect of S120, basis, and are each described
Spatial frequency parameter corresponding to regional graphics setting；
S130, the watermarking images are pre-processed, obtain at least one passage gray level image；
S140, obtain the passage gray level image each pixel gray value；
S150, according to presetting, corresponding relation list acquisition is corresponding with the gray value of each pixel of the passage gray level image
Grating angle value, and the spatial frequency parameter according to corresponding to each pixel affiliated area figure of the passage gray level image
Obtain grating fringe frequency corresponding to each pixel；
S160, according to preset rules by the grating angle value of each pixel of the passage gray level image of acquisition and right
The grating fringe frequency generation packet answered, and photoetching is carried out on photolithography plate according to the packet, contained after developed
The hologram of watermark information.
4. the method for copyright ownership tracking according to claim 1, it is characterised in that the step S300 includes：
The optical information of hologram diffraction on S310, the collection watermarking images information；
S320, the holographic data according to the optical information acquisition copyright information to be tested；
The default corresponding relation list of S330, basis obtains view data corresponding with the holographic data；
S340, described image data, the watermark feature of the acquisition copyright information to be tested are calculated using preset algorithm
Value.
5. the method for radium-shine masterplate copyright ownership tracking according to claim 1, it is characterised in that step S400 is further
Including：
S410, whether judge in the watermark feature value of the copyright information to be tested comprising the copyright mark to be followed the trail of
Know the watermark feature value of information.
6. the method for copyright ownership tracking as claimed in claim 4, it is characterised in that the holographic data is included on hologram
The grating angle value of each pixel；Described image data include the gray value of each pixel on hologram.
7. a kind of device of copyright ownership tracking, uses the copyright ownership tracking side described in the claims 1-6 any one
Method, it is characterised in that including：
Watermarking images acquisition module, watermarking images information is obtained from product to be tested or radium-shine template to be tested；
Copyright extraction module, treated according to being extracted in the watermarking images information obtained from the watermarking images acquisition module
The copyright information of inspection；
Copyright judge module, the copyright information to be tested for judging to extract from copyright extraction module are
It is no to contain the copyright information for needing to be followed the trail of；
State confirmation module is followed the trail of, according to the judged result of the copyright judge module, determines that copyright ownership follows the trail of state.
8. the device of copyright ownership tracking according to claim 1, it is characterised in that also include：
Copyright information setup module, the copyright information to be followed the trail of is embedded in radium-shine masterplate.
9. the device of copyright ownership tracking according to claim 8, it is characterised in that the copyright information sets mould
Block includes：
Watermarking images generate submodule, select watermark region on the original image, are embedded in the watermark region containing described
The watermark information of copyright information, generate the watermarking images containing the copyright information to be followed the trail of；
Watermarking images set submodule, and the watermarking images are divided into multiple different administrative division maps according to default expression effect
Shape, and be spatial frequency parameter corresponding to each regional graphics setting；
Watermarking images pre-process submodule, and the watermarking images are pre-processed, obtain at least one passage gray level image；
Gray value acquisition submodule, obtain the gray value of each pixel of the passage gray level image；
Grating angle value acquisition submodule, each pixel with the passage gray level image is obtained according to default corresponding relation list
Grating angle value corresponding to the gray value of point,
Grating fringe frequency acquisition submodule, according to corresponding to each pixel affiliated area figure of the passage gray level image
Spatial frequency parameter obtains grating fringe frequency corresponding to each pixel；
Packet generation module, according to preset rules by the grating of each pixel of the passage gray level image of acquisition
Angle value and corresponding grating fringe frequency generation packet,
Hologram generation module, photoetching is carried out on photolithography plate according to the packet, obtained after developed with watermarked information
Hologram.
10. the device of copyright ownership tracking according to claim 8, it is characterised in that the copyright extraction module
Including：
Acquisition module, gather the optical information of hologram diffraction in the watermarking images information；
Holographic data obtains mould, and the holographic data of the copyright information to be tested is obtained according to the optical information；
Image data acquisition module, view data corresponding with the holographic data is obtained according to default corresponding relation list；
Computing module, described image data are calculated using preset algorithm, obtain the watermark of the copyright information to be tested
Characteristic value.
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| CN111559572A (en) * | 2020-06-12 | 2020-08-21 | 山东泰宝信息科技集团有限公司 | Point light source recognition laser encryption holographic anti-counterfeiting gasket and preparation method thereof |
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