CN110188516A - The method and device of stealthy watermark - Google Patents
The method and device of stealthy watermark Download PDFInfo
- Publication number
- CN110188516A CN110188516A CN201910363426.6A CN201910363426A CN110188516A CN 110188516 A CN110188516 A CN 110188516A CN 201910363426 A CN201910363426 A CN 201910363426A CN 110188516 A CN110188516 A CN 110188516A
- Authority
- CN
- China
- Prior art keywords
- watermark
- stealthy
- content
- stealthy watermark
- file destination
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000003780 insertion Methods 0.000 claims abstract description 22
- 230000037431 insertion Effects 0.000 claims abstract description 22
- 239000000049 pigment Substances 0.000 claims description 8
- 238000012550 audit Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 description 5
- 239000000976 ink Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000003086 colorant Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000036299 sexual function Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/12—Digital output to print unit, e.g. line printer, chain printer
- G06F3/1201—Dedicated interfaces to print systems
- G06F3/1202—Dedicated interfaces to print systems specifically adapted to achieve a particular effect
- G06F3/1203—Improving or facilitating administration, e.g. print management
- G06F3/1208—Improving or facilitating administration, e.g. print management resulting in improved quality of the output result, e.g. print layout, colours, workflows, print preview
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/12—Digital output to print unit, e.g. line printer, chain printer
- G06F3/1201—Dedicated interfaces to print systems
- G06F3/1223—Dedicated interfaces to print systems specifically adapted to use a particular technique
- G06F3/1237—Print job management
- G06F3/1244—Job translation or job parsing, e.g. page banding
- G06F3/1247—Job translation or job parsing, e.g. page banding by conversion to printer ready format
Abstract
The invention discloses a kind of methods of stealthy watermark, include the following steps: A) operation is submitted to watermark server by way of printing, after the watermark server gets the operation, judge whether to need to add stealthy watermark, if so, executing step C)；Otherwise, step B is executed)；B) operation is exported, does not do embedding operation；C the corresponding file destination of the operation) is opened, stealthy watermark insertion is carried out, is exported after the completion of insertion with PDF format, execute step D)；D operation printout) is carried out according to the figure layer of the file destination.The invention further relates to a kind of devices of method for realizing above-mentioned stealthy watermark.The method and device for implementing stealthy watermark of the invention has the advantages that readability and integrality that is low in cost, can expanding the anti-fake and security audit field of low level that is used in, be not easily removed, having more safety, not influencing original.
Description
Technical field
The present invention relates to document security field, in particular to a kind of method and device of stealthy watermark.
Background technique
The watermark of paper document is generally plaintext figure layer, can see at a glance on paper, general only to make warning and copyright
The effect of protection, such watermark because be in plain text, naked eyes as it can be seen that can by crop or other plain modes carry out
Processing, it is easy to it is removed, if in the full paper document that tiles, and the reading for influencing document content itself uses.Plaintext watermark
Effect it is single, readability disadvantage easy to remove, and will affect file itself.
Summary of the invention
The technical problem to be solved in the present invention is that in view of the above drawbacks of the prior art, provide it is a kind of it is low in cost, can
With expand be used in low level anti-fake and security audit field, be not easily removed, have more safety, do not influence readding for original
The method and device of the stealthy watermark of the property read and integrality.
The technical solution adopted by the present invention to solve the technical problems is: a kind of method for constructing stealthy watermark, including such as
Lower step:
A) operation is submitted to watermark server by way of printing, the watermark server gets the operation
Afterwards, judge whether to need to add stealthy watermark, if so, executing step C)；Otherwise, step B is executed)；
B) operation is exported, does not do embedding operation；
C the corresponding file destination of the operation) is opened, stealthy watermark insertion is carried out, it is defeated with PDF format after the completion of insertion
Out, step D is executed)；
D operation printout) is carried out according to the figure layer of the file destination.
In the method for stealthy watermark of the present invention, being embedded into the stealthy watermark in the file destination includes stealth
Content, position and the intensity of watermark.
In the method for stealthy watermark of the present invention, the step C) further comprise:
C1 concentration layer grade) is divided by four classifications according to pre-set color intensity, to cope with the pigment concentration difference of printer；
Wherein level Four is most dense, and level-one is most light；
C2 content, embedded coordinate, quantity and the tile mode of stealthy watermark) are preset；
C3 the content of stealthy watermark) is subjected to data configuration, color combination is carried out according to the content of the stealthy watermark, really
The color of the fixed stealthy watermark content；
C4) content, color, preset concentration and the coordinate by the stealthy watermark form new figure layer, are uniformly embedded in institute
It states in the corresponding file destination of operation, forms the file of PDF format.
The invention further relates to a kind of devices of method for realizing above-mentioned stealthy watermark, comprising:
Judging unit is submitted in operation: for operation to be submitted to watermark server, the watermark clothes by way of printing
After business device gets the operation, judge whether to need to add stealthy watermark；
No-watermark output unit: for exporting the operation, embedding operation is not done；
Band watermark output unit: being used to open the corresponding file destination of the operation, carries out stealthy watermark insertion, has been embedded in
It is exported after with PDF format；
Operation print-out unit: for carrying out operation printout according to the figure layer of the file destination.
In device of the present invention, being embedded into the stealthy watermark in the file destination includes the interior of stealthy watermark
Appearance, position and intensity.
In device of the present invention, the band watermark output unit further comprises:
Concentration layer grade diversity module: for concentration layer grade to be divided into four classifications according to pre-set color intensity, should fight each other
The pigment concentration difference of print machine；Wherein level Four is most dense, and level-one is most light；
Stealthy watermark presetting module: content, embedded coordinate, quantity and tile mode for default stealthy watermark；
Color combines determining module: for the content of stealthy watermark to be carried out data configuration, according to the stealthy watermark
Content carries out color combination, determines the color of the stealthy watermark content；
Stealthy watermark embedding module: new for forming content, color, preset concentration and the coordinate of the stealthy watermark
Figure layer is uniformly embedded in the corresponding file destination of the operation, forms the file of PDF format.
The method and device for implementing stealthy watermark of the invention, has the advantages that due to embedding in file destination
Enter stealthy watermark, exported after the completion of insertion with PDF format, operation printout is carried out according to the figure layer of file destination, with tradition
Plaintext watermark comparison, by the invisible insertion of watermark content, can not influence the readability and integrality of original；Because of watermark meat
Eye is invisible, can expand the anti-fake and security audit field for being used in low level；Specialty inks are not needed, common color is passed through
Printing device printing can print, it is low in cost；Because naked eyes are invisible, it is not easily removed, more safety；Therefore originally
Invent it is low in cost, the anti-fake and security audit field of low level that is used in can be expanded, be not easily removed, more safety,
The readability and integrality of original is not influenced.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the flow chart in method and device one embodiment of the stealthy watermark of the present invention；
Fig. 2 is that the corresponding file destination of the operation is opened in the embodiment, carries out stealthy watermark insertion, and insertion is completed
The specific flow chart exported afterwards with PDF format；
Fig. 3 is the structural schematic diagram of device in the embodiment.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In the method and device embodiment of stealthy watermark of the invention, the flow chart of the method for the stealth watermark such as Fig. 1 institute
Show.In Fig. 1, the method for the stealth watermark includes the following steps:
Operation is submitted to watermark server by way of printing and sentenced after watermark server gets operation by step S01
It is disconnected whether to need to add stealthy watermark: in this step, operation being submitted to watermark server, watermark service by way of printing
After device gets the operation, carry out condition judgement, that is, judge whether to need to add stealthy watermark, if it is determined that result be it is yes,
It needs to add stealthy watermark, thens follow the steps S03；If it is determined that result be it is no, that is, do not need to add stealthy watermark, then hold
Row step S02.
Step S02 exports operation, does not do embedding operation: if the judging result of above-mentioned steps S01 be it is no, execute sheet
Step.In this step, operation is exported, does not do embedding operation.No-watermark output is realized by this step.
Step S03 opens the corresponding file destination of operation, carries out stealthy watermark insertion, defeated with PDF format after the completion of insertion
Out: if the judging result of above-mentioned steps S01 be it is yes, execute this step.In this step, the corresponding target text of operation is opened
Part is carried out stealthy watermark insertion, is exported after the completion of insertion with PDF format.It is noted that being embedded into hidden in file destination
Shape watermark includes content, position and the intensity of stealthy watermark.It is realized by this step and adds stealthy watermark.This step has been executed,
Execute step S04.
Step S04 carries out operation printout according to the figure layer of file destination: in this step, according to the figure layer of file destination
Carry out operation printout.
The method of stealthy watermark of the invention and traditional plaintext watermark compare, can not by the invisible insertion of watermark content
Influence the readability and integrality of original.Because watermark naked eyes are invisible, it can expand and be used in the anti-fake of low level and peace
Full audit field.Specialty inks are not needed, can be printed by the printing device printing of common color, it is low in cost.Because
It is visually invisible, it is not easily removed, more safety.
The emphasis of the method for stealthy watermark of the invention is the addition for carrying out stealthy watermark.The basic principle of stealthy watermark is such as
Under: principle is printed using four mixture of colours of color printer, cyan/magenta/yellow color/black (CMYK) is calculated by various combination
Method is combined into new watermark figure layer, and is embedded in original (the corresponding file destination of print job), and form pdf document.
The figure layer is printing main body with extremely light yellow uitramarine, cooperates other three kinds of pigment concentrations of different components, the watermark figure layer of generation
Human eye can not distinguish substantially, to form stealthy effect.
About the adding procedure of stealthy watermark, Fig. 2 is referred to.Fig. 2 is to open the corresponding mesh of the operation in the present embodiment
File is marked, stealthy watermark insertion, the specific flow chart exported after the completion of insertion with PDF format are carried out.In Fig. 2, above-mentioned steps S03
Further comprise following steps:
Concentration layer grade is divided into four classifications according to pre-set color intensity by S31, to cope with the pigment concentration difference of printer:
In this step, concentration layer grade is divided by four classifications according to pre-set color intensity, to cope with the pigment concentration difference of printer.Its
In, wherein level Four is most dense, and level-one is most light.These grades can be manually adjusted according to watermark effect.
Content, embedded coordinate, quantity and the tile mode of the default stealthy watermark of step S32: in this step, invisible water is preset
Content, embedded coordinate, quantity and the tile mode of print.
The content of stealthy watermark is carried out data configuration by step S33, carries out color combination according to the content of stealthy watermark, really
The color of fixed stealth watermark content: in this step, the content of stealthy watermark is subjected to data configuration, according to the content of stealthy watermark
Color combination is carried out, determines the color of stealth watermark content.
The content of stealthy watermark, color, preset concentration and coordinate are formed new figure layer by step S34, are uniformly embedded in work
In the corresponding file destination of industry, the file of PDF format is formed: in this step, by the content, color, preset concentration of stealthy watermark
New figure layer is formed with coordinate, is uniformly embedded in the corresponding file destination of operation, forms the file of new PDF format.Pass through
Above-mentioned steps S31 to step S34 realizes the addition of stealthy watermark.
The present embodiment further relates to a kind of device of method for realizing above-mentioned stealthy watermark, and the structural schematic diagram of the device is as schemed
Shown in 3.In Fig. 3, which includes that judging unit 1, no-watermark output unit 2, band watermark output unit 3 and operation are submitted in operation
Print-out unit 4；Wherein, operation submits judging unit 1 for operation to be submitted to watermark server by way of printing,
After watermark server gets operation, judge whether to need to add stealthy watermark；No-watermark output unit 2 is used for operation is defeated
Out, embedding operation is not done；Band watermark output unit 3 is used to open the corresponding file destination of operation, carries out stealthy watermark insertion, embedding
It is exported after the completion of entering with PDF format；It is noted that the stealthy watermark being embedded into file destination includes the interior of stealthy watermark
Appearance, position and intensity.Operation print-out unit 4 is used to carry out operation printout according to the figure layer of file destination.
The device of the invention and traditional plaintext watermark compare, and by the invisible insertion of watermark content, can not influence original
Readability and integrality.Because watermark naked eyes are invisible, the anti-fake and security audit field for being used in low level can be expanded.
Specialty inks are not needed, can be printed by the printing device printing of common color, it is low in cost.Because naked eyes are invisible,
It is not easily removed, more safety.
In the present embodiment, band watermark output unit 3 further comprises concentration layer grade diversity module 31, the default mould of stealthy watermark
Block 32, color combination determining module 33 and stealthy watermark embedding module 34；Wherein, concentration layer grade diversity module 31 is used for according to pre-
If concentration layer grade is divided into four classifications by color intensity, to cope with the pigment concentration difference of printer；Wherein level Four is most dense, level-one
It is most light；Content, embedded coordinate, quantity and tile mode of the stealthy watermark presetting module 32 for default stealthy watermark；Color group
It closes determining module 33 to be used to the content of stealthy watermark carrying out data configuration, color combination is carried out according to the content of stealthy watermark,
Determine the color of stealth watermark content；Stealthy watermark embedding module 34 be used for by the content of stealthy watermark, color, preset concentration and
Coordinate forms new figure layer, is uniformly embedded in the corresponding file destination of operation, forms the file of PDF format.
In short, the present invention reaches sightless effect with different color scheme figure layers, stealth is rendered as after printing
Watermark.Stealthy watermark printing can be realized using common color printer.The present invention carries out electronics using the mode of transparent figure layer
The stealthy watermark of document is added, and there is the sightless watermark figure layer of naked eyes after paper document printing, can only under given conditions or
The watermark that can just show under person's technique algorithm, technique can show adjusting according to intensity size, to not only have watermark
Original function, it is anti-fake to can also be used to carry out paper document, traces to the source etc. and to expand sexual function, and because naked eyes are invisible, general
Logical personnel can not perceive the presence of stealthy watermark, and content and position are not easily removed and distort, and will not influence original
It is readability.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (6)
1. a kind of method of stealth watermark, which comprises the steps of:
A) operation is submitted to watermark server sentence after the watermark server gets the operation by way of printing
It is disconnected whether to need to add stealthy watermark, if so, executing step C)；Otherwise, step B is executed)；
B) operation is exported, does not do embedding operation；
C the corresponding file destination of the operation) is opened, stealthy watermark insertion is carried out, is exported, held with PDF format after the completion of insertion
Row step D)；
D operation printout) is carried out according to the figure layer of the file destination.
2. the method for stealth watermark according to claim 1, which is characterized in that the stealth being embedded into the file destination
Watermark includes content, position and the intensity of stealthy watermark.
3. the method for stealth watermark according to claim 2, which is characterized in that the step C) further comprise:
C1 concentration layer grade) is divided by four classifications according to pre-set color intensity, to cope with the pigment concentration difference of printer；Wherein
Level Four is most dense, and level-one is most light；
C2 content, embedded coordinate, quantity and the tile mode of stealthy watermark) are preset；
C3 the content of stealthy watermark) is subjected to data configuration, color combination is carried out according to the content of the stealthy watermark, determines institute
State the color of stealthy watermark content；
C4) content, color, preset concentration and the coordinate by the stealthy watermark form new figure layer, are uniformly embedded in the work
In the corresponding file destination of industry, the file of PDF format is formed.
4. a kind of device for the method for realizing stealthy watermark as described in claim 1 characterized by comprising
Judging unit is submitted in operation: for operation to be submitted to watermark server, the watermark server by way of printing
After getting the operation, judge whether to need to add stealthy watermark；
No-watermark output unit: for exporting the operation, embedding operation is not done；
Band watermark output unit: being used to open the corresponding file destination of the operation, stealthy watermark insertion is carried out, after the completion of insertion
It is exported with PDF format；
Operation print-out unit: for carrying out operation printout according to the figure layer of the file destination.
5. device according to claim 4, which is characterized in that the stealthy watermark being embedded into the file destination includes hidden
Content, position and the intensity of shape watermark.
6. device according to claim 5, which is characterized in that the band watermark output unit further comprises:
Concentration layer grade diversity module: for concentration layer grade to be divided into four classifications according to pre-set color intensity, to cope with printer
Pigment concentration difference；Wherein level Four is most dense, and level-one is most light；
Stealthy watermark presetting module: content, embedded coordinate, quantity and tile mode for default stealthy watermark；
Color combines determining module: for the content of stealthy watermark to be carried out data configuration, according to the content of the stealthy watermark
Color combination is carried out, determines the color of the stealthy watermark content；
Stealthy watermark embedding module: for content, color, preset concentration and the coordinate of the stealthy watermark to be formed new figure
Layer, is uniformly embedded in the corresponding file destination of the operation, forms the file of PDF format.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910363426.6A CN110188516A (en) | 2019-04-30 | 2019-04-30 | The method and device of stealthy watermark |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910363426.6A CN110188516A (en) | 2019-04-30 | 2019-04-30 | The method and device of stealthy watermark |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110188516A true CN110188516A (en) | 2019-08-30 |
Family
ID=67715556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910363426.6A Pending CN110188516A (en) | 2019-04-30 | 2019-04-30 | The method and device of stealthy watermark |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110188516A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111158616A (en) * | 2019-12-30 | 2020-05-15 | 北京明朝万达科技股份有限公司 | Method and system for tracing whole-process state of printed file |
| CN113741831A (en) * | 2021-09-07 | 2021-12-03 | 苏州博瑞凯德信息技术有限公司 | Intelligent printing method and device, storage medium and electronic equipment |
| CN115079966A (en) * | 2022-08-22 | 2022-09-20 | 南京数睿数据科技有限公司 | Code-free page printing method and device, electronic equipment and readable medium |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7031471B2 (en) * | 1997-02-28 | 2006-04-18 | Contentguard Holdings, Inc. | System for controlling the distribution and use of rendered digital works through watermarking |
| CN103500296A (en) * | 2013-09-29 | 2014-01-08 | 北京溯源鸿业科技有限公司 | Inlaying method and device of digital watermarks in text documents |
| CN204377009U (en) * | 2015-02-04 | 2015-06-03 | 天津科技大学 | A kind of portable scanner for papery Text Watermarking decrypted authentication |
| CN204451551U (en) * | 2015-02-04 | 2015-07-08 | 天津科技大学 | A kind of low cost Portable printer encrypted again for papery Text Watermarking |
| CN106484340A (en) * | 2016-09-08 | 2017-03-08 | 中标软件有限公司 | Watermark interpolation is carried out in print procedure to document knows method for distinguishing with watermark |
-
2019
- 2019-04-30 CN CN201910363426.6A patent/CN110188516A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7031471B2 (en) * | 1997-02-28 | 2006-04-18 | Contentguard Holdings, Inc. | System for controlling the distribution and use of rendered digital works through watermarking |
| CN103500296A (en) * | 2013-09-29 | 2014-01-08 | 北京溯源鸿业科技有限公司 | Inlaying method and device of digital watermarks in text documents |
| CN204377009U (en) * | 2015-02-04 | 2015-06-03 | 天津科技大学 | A kind of portable scanner for papery Text Watermarking decrypted authentication |
| CN204451551U (en) * | 2015-02-04 | 2015-07-08 | 天津科技大学 | A kind of low cost Portable printer encrypted again for papery Text Watermarking |
| CN106484340A (en) * | 2016-09-08 | 2017-03-08 | 中标软件有限公司 | Watermark interpolation is carried out in print procedure to document knows method for distinguishing with watermark |
Non-Patent Citations (1)
| Title |
|---|
| 陈春涛: "施乐DocuColor 彩色激光打印机", 《江苏警官学院学报》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111158616A (en) * | 2019-12-30 | 2020-05-15 | 北京明朝万达科技股份有限公司 | Method and system for tracing whole-process state of printed file |
| CN113741831A (en) * | 2021-09-07 | 2021-12-03 | 苏州博瑞凯德信息技术有限公司 | Intelligent printing method and device, storage medium and electronic equipment |
| CN115079966A (en) * | 2022-08-22 | 2022-09-20 | 南京数睿数据科技有限公司 | Code-free page printing method and device, electronic equipment and readable medium |
| CN115079966B (en) * | 2022-08-22 | 2022-12-02 | 南京数睿数据科技有限公司 | Code-free page printing method and device, electronic equipment and readable medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110188516A (en) | The method and device of stealthy watermark | |
| US20040255808A1 (en) | Network point printed matter and printing method | |
| WO2006133615A1 (en) | A printing method for the safe document with built-in copying-prevention shading | |
| US8107099B2 (en) | Watermarking | |
| MX2008014176A (en) | Security enhanced print media with copy protection. | |
| JP5900821B2 (en) | Latent image printed matter | |
| JP6888769B2 (en) | How to create data for special latent image pattern structure and special latent image pattern structure | |
| KR101539925B1 (en) | Double Layer UV Variable Data Text | |
| JP4461234B2 (en) | Authentic printed material | |
| JP4143625B2 (en) | Image processing apparatus and image processing method | |
| JP5709132B2 (en) | Printed material for preventing forgery, method for creating printed matter for preventing forgery, and system for creating printed matter for preventing forgery | |
| JP4273507B2 (en) | Authentic printed material | |
| JP7284950B2 (en) | LATENT IMAGE PRINTED MATERIAL READING DEVICE, READING METHOD AND SOFTWARE FOR READING | |
| JP2005103980A (en) | Forming method and program for forming dot image data and authenticating system and program for authenticating dot image data or dot printed matter | |
| CN102490508A (en) | Method for manufacturing anti-counterfeiting printing product | |
| JP4441632B2 (en) | Authentic printed material | |
| JP2008068511A (en) | Printed matter in which truth distinction is possible | |
| CN206561709U (en) | A kind of anti-copy file | |
| JP7276399B2 (en) | duplicate restraint printed matter | |
| JP6253023B2 (en) | Transmission latent image printed matter | |
| JP6755471B2 (en) | Copy check printed matter | |
| EP2165844A2 (en) | Infrared printing with process printing inks | |
| JP5971717B2 (en) | Image forming body | |
| KR100822724B1 (en) | Digital security device and method thereof, and image certification device | |
| CN101480891A (en) | Method for hiding print character |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190830 |