CN105405091A - Digital watermark realization method and device under cloud environment - Google Patents
Digital watermark realization method and device under cloud environment Download PDFInfo
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- CN105405091A CN105405091A CN201510738250.XA CN201510738250A CN105405091A CN 105405091 A CN105405091 A CN 105405091A CN 201510738250 A CN201510738250 A CN 201510738250A CN 105405091 A CN105405091 A CN 105405091A
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- 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
- G06T1/005—Robust watermarking, e.g. average attack or collusion attack resistant
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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1097—Protocols in which an application is distributed across nodes in the network for distributed storage of data in networks, e.g. transport arrangements for network file system [NFS], storage area networks [SAN] or network attached storage [NAS]
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Abstract
The invention discloses a digital watermark realization method and device under the cloud environment. The method comprises the steps that initial watermark information which can be embedded in original information is generated by information representing a data owner; the position of the initial watermark information is altered according to preset rules, and spectrum spread processing is performed so that watermark information is generated; the original information is partitioned, and frequency domain transformation is performed on the obtained multiple information blocks; the watermark information is respectively embedded in the multiple information blocks through frequency domain transformation; and corresponding inverse transformation is performed on the multiple information blocks with embedding of the watermark information, and information data containing watermarks are generated through merging. The information is encrypted before the information is transmitted to a cloud side by adopting a digital watermark technology. The watermark information is not damaged or lost in the spreading and use process of the information containing the watermarks due to the fact that the digital watermarks have invisibility and robustness so that the copyright of the product can be effectively protected and transmission of the information can be tracked.
Description
Technical field
The present invention relates to field of cloud computer technology, under particularly relating to a kind of cloud environment, realize method and the device of digital watermarking.
Background technology
Along with the development of cloud computing, core business and important data are transferred to high in the clouds by increasing enterprise, and therefore under cloud environment, the safety problem of data becomes the focus of enterprises pay attention gradually.Under cloud environment, mutual and the propagation of information becomes more frequent, some individuals or group utilize the facility of cloud environment shared resource, when allowing without the product owner fraudulent copying, propagate and have the product of copyright, great infringement is brought, also the serious harm safety of cloud environment to copyright owner.Therefore, in the cloud computing epoch, the safety of guarantee information in cloud environment becomes problem demanding prompt solution.
The information of copyright owner can be hidden in digital product by digital watermarking system by digital watermark technology, protects the right of copyright owner and can follow the trail of product.The development of digital watermark technology, from the direct embed watermark information of information for spatial domain to first converting numerical information, carries out watermark embedment at corresponding transform domain, to improve invisibility and the robustness of watermark.The watermark embedding technique in the most frequently used is discrete cosine transform domain and wavelet transform territory.
For solving the safety problem under cloud environment in Information Communication and shared procedure, the invention provides a kind of by digital watermark technology to transmitting the method and device that data embed.
Summary of the invention
Realize method and the device of digital watermarking under the object of this invention is to provide a kind of cloud environment, before data transmission uploads to high in the clouds, add digital watermarking, can available protecting copyright and the transmission of trace information.
For solving the problems of the technologies described above, realizing the method for digital watermarking under the invention provides a kind of cloud environment, comprising:
The information of representative data owner is generated the initial watermarking information that can be embedded in raw information;
Described initial watermarking information is shifted one's position according to preset rules, and carries out spread processing, generating watermark information;
Piecemeal is carried out to described raw information, frequency domain conversion is carried out to the multiple message block obtained;
The multiple message block be respectively through frequency domain conversion embed described watermark information;
The multiple message block embedding described watermark information are carried out corresponding inverse transformation, merges the information data generated containing watermark.
Alternatively, the multiple message block be respectively described in through frequency domain conversion embed described watermark information and comprise:
According to energy feature, the multiple message block converted through frequency domain are classified;
For different classifications specifies different intensity factors respectively;
Be respectively the watermark information that each described message block embeds the respective strengths factor.
Alternatively, described piecemeal is carried out to described raw information, frequency domain conversion is carried out to the multiple message block obtained and comprises:
Piecemeal is carried out to described raw information, discrete cosine transform is carried out to the multiple message block obtained;
Described multiple message block by the described watermark information of embedding carry out corresponding inverse transformation, merge the information data generated containing watermark and comprise:
The multiple message block embedding described watermark information are carried out inverse discrete cosine transform, merges the information data generated containing watermark.
Alternatively, also comprise:
The described uploading information data containing watermark is stored to Cloud Server.
Alternatively, also comprise:
By contrasting described watermark information and the watermark that extracts in the information, verify that whether described information is under attack in cloud environment.
Realize the device of digital watermarking under present invention also offers a kind of cloud environment, comprising:
Generation module, for generating the initial watermarking information that can be embedded in raw information by the information of representative data owner;
Processing module, for being shifted one's position according to preset rules by described initial watermarking information, and carries out spread processing, generating watermark information;
Conversion module, for carrying out piecemeal to described raw information, carries out frequency domain conversion to the multiple message block obtained;
Merge module, embeds described watermark information for the multiple message block be respectively through frequency domain conversion;
Synthesis module, for the multiple message block embedding described watermark information are carried out corresponding inverse transformation, merges the information data generated containing watermark.
Alternatively, described merge module comprises:
Taxon, for classifying to the multiple message block converted through frequency domain according to energy feature;
Designating unit, for specifying different intensity factors respectively for different classifications;
Embedded unit, embeds the watermark information of the respective strengths factor for being respectively each described message block.
Alternatively, described conversion module specifically for: piecemeal is carried out to described raw information, discrete cosine transform is carried out to the multiple message block obtained;
Described synthesis module specifically for: carrying out inverse discrete cosine transform by embedding multiple message block of described watermark information, merging the information data generated containing watermark.
Alternatively, also comprise:
Memory module, for storing the described uploading information data containing watermark to Cloud Server.
Alternatively, also comprise:
Authentication module, for by contrasting described watermark information and the watermark that extracts in the information, verifies that whether described information is under attack in cloud environment.
Method and the device of digital watermarking is realized, by the information of representative data owner being generated the initial watermarking information that can be embedded in raw information under cloud environment provided by the present invention; Then shift one's position according to preset rules, and carry out spread processing, generating watermark information; Piecemeal is carried out to raw information, frequency domain conversion is carried out to the multiple message block obtained; Be respectively multiple message block and embed described watermark information; Multiple message block of embed watermark information are carried out corresponding inverse transformation, merges the information data generated containing watermark.Method and the device of digital watermarking is realized under cloud environment provided by the present invention; digital watermark technology is adopted to be encrypted it before information transmission to high in the clouds; due to the invisibility of digital watermarking; original value of information can not be affected; and due to the robustness of digital watermarking; information watermark information in the process propagated and use containing watermark can not be destroyed or lose, thus the available protecting copyright of product, and can to follow the tracks of the transmission of information.
Accompanying drawing explanation
Fig. 1 is the process flow diagram of a kind of embodiment realizing the method for digital watermarking under cloud environment provided by the present invention;
Fig. 2 is the process flow diagram of the another kind of embodiment realizing the method for digital watermarking under cloud environment provided by the present invention;
Fig. 3 is the structured flowchart of a kind of embodiment realizing the device of digital watermarking under cloud environment provided by the present invention.
Embodiment
In order to make those skilled in the art person understand the present invention program better, below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.Obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Realize the process flow diagram of a kind of embodiment of the method for digital watermarking under cloud environment provided by the present invention as shown in Figure 1, the method comprises:
Step S101: the information of representative data owner is generated the initial watermarking information that can be embedded in raw information;
In the present invention, adopt the mode of digital watermarking that the use value of prime information can be made unaffected, and include the information of representative data owner, can not be damaged in process beyond the clouds.
Step S102: described initial watermarking information is shifted one's position according to preset rules, and carry out spread processing, generating watermark information;
In this step, scramble and spread processing are carried out to initial watermarking information.Wherein, namely disorder processing upsets order to watermark information according to certain rule, after carrying out disorder processing, even if assailant obtains watermark information, also cannot verify whether obtain correct watermark information when not knowing scramble rule to watermark; Spread spectrum widens process to former watermark information, can strengthen antijamming capability like this.
Step S103: carry out piecemeal to described raw information, carries out frequency domain conversion to the multiple message block obtained;
Step S104: the multiple message block be respectively through frequency domain conversion embed described watermark information;
Particularly, this step can be realized by self-adapting watermarking algorithm.Self-adapting watermarking algorithm is the watermark embedding varying strength according to the distribution of raw information respectively, reaches the invisibility of watermark and the optimization of robustness.
Step S105: the multiple message block embedding described watermark information are carried out corresponding inverse transformation, merges the information data generated containing watermark.
In above process, the embedding of watermark embeds respectively by after raw information piecemeal, the effect of saving resource can be played like this, such as watermark embedment is carried out to image information, fritter watermarking images to be embedded being divided into 8 × 8 carries out watermark embedment respectively, so only utilizes the resource to small images process.If resource is sufficient, can multiple fritter be parallel carries out watermark embedding operation, watermark embedment speed is significantly improved, according to the number of modules of the resource utilization planning parallel work-flow of reality, reaches the optimization of speed and the utilization of resources.
The method of digital watermarking is realized, by the information of representative data owner being generated the initial watermarking information that can be embedded in raw information under cloud environment provided by the present invention; Then shift one's position according to preset rules, and carry out spread processing, generating watermark information; Piecemeal is carried out to raw information, frequency domain conversion is carried out to the multiple message block obtained; Be respectively multiple message block and embed described watermark information; Multiple message block of embed watermark information are carried out corresponding inverse transformation, merges the information data generated containing watermark.Method and the device of digital watermarking is realized under cloud environment provided by the present invention; digital watermark technology is adopted to be encrypted it before information transmission to high in the clouds; due to the invisibility of digital watermarking; original value of information can not be affected; and due to the robustness of digital watermarking; information watermark information in the process propagated and use containing watermark can not be destroyed or lose, thus the available protecting copyright of product, and can to follow the tracks of the transmission of information.
It is pointed out that the raw information in above-described embodiment can be sound, image or video information.In another specific embodiment provided by the present invention, for two-dimensional static image, it is further elaborated.The process flow diagram of this embodiment as shown in Figure 2, specifically comprises:
Step S201: the information of representative data owner is converted to the watermark information that can be embedded in prime information; Be specifically as follows two value informations.
Step S202: disorder processing and spread processing are carried out to watermark information;
Disorder processing by the pixel of watermark information according to certain rule transformation position, even if assailant obtains watermark information also do not know its concrete meaning, in addition in order to improve the robustness of watermark, watermark information is carried out spread processing, certain coded system is adopted to widen by a pixel, even if a certain position of watermark changes in attack process like this, still correct watermark information can be obtained.
Step S203: original image is carried out piecemeal process, carries out discrete cosine transform;
Adopt the watermarking algorithm based on discrete cosine transform in the present embodiment, carry out discrete cosine transform respectively by after image block, can certainly be other transform methods, this all affect realization of the present invention.
Step S204: image block is classified according to its energy feature, different classifications embeds the watermark information of varying strength;
Feature according to prime information in the present embodiment is classified, and for different classes of each image block specifies different intensity factors, embeds the watermark information of varying strength respectively, reaches the invisibility of watermark and the balance of robustness.
Step S205: carry out inverse discrete cosine transform, merges image block, finally obtains the image containing watermark.
Parallel mode of carrying out embedding can be adopted in watermark embed process, can economize on resources so on the one hand, under the condition ensureing resource rational utilization, parallel work-flow can improve speed on the other hand.As for 256 × 256 still image, 1024 8 × 8 fritters can be divided into altogether, 2 watermark embedding module carry out watermark embedding operation to image block simultaneously, can operate by multiple modular concurrent when resource allows, and reach the utilization of resources and the optimization improving speed.
Further, said method can also comprise:
Step S206: the information such as image containing watermark is uploaded to high in the clouds, the operation such as carry out cloud computing, cloud stores, cloud is shared.
In addition, under cloud environment provided by the present invention, realizing the method for digital watermarking, by contrasting original watermark information and the watermark that extracts in the information, can also verify that whether described information is under attack in cloud environment.By detecting the robustness of the integrity verification watermark of watermark, to verify its reliability further.
The present invention is by being embedded in prime information by the information representing enterprise or individual with the form of watermark, because digital watermark has robustness, so also breaking-up can not be caused to watermark information in cloud computing, cloud storage, cloud shared procedure, and if assailant attempts to destroy watermark information, the prime information such as core business or significant data can be subject to larger destruction and lose original use value.So added digital watermarking before data upload to high in the clouds, can available protecting copyright and the transmission of trace information.
Realize the structured flowchart of a kind of embodiment of the device of digital watermarking under cloud environment provided by the present invention as shown in Figure 3, this device comprises:
Generation module 100, for generating the initial watermarking information that can be embedded in raw information by the information of representative data owner;
Processing module 200, for being shifted one's position according to preset rules by described initial watermarking information, and carries out spread processing, generating watermark information;
Conversion module 300, for carrying out piecemeal to described raw information, carries out frequency domain conversion to the multiple message block obtained;
Merge module 400, embeds described watermark information for the multiple message block be respectively through frequency domain conversion;
Synthesis module 500, for the multiple message block embedding described watermark information are carried out corresponding inverse transformation, merges the information data generated containing watermark.
As a kind of embodiment, above-mentioned merge module can comprise:
Taxon, for classifying to the multiple message block converted through frequency domain according to energy feature;
Designating unit, for specifying different intensity factors respectively for different classifications;
Embedded unit, embeds the watermark information of the respective strengths factor for being respectively each described message block.
As a kind of embodiment, above-mentioned conversion module 300 specifically for: piecemeal is carried out to described raw information, discrete cosine transform is carried out to the multiple message block obtained;
Described synthesis module 500 specifically for: carrying out inverse discrete cosine transform by embedding multiple message block of described watermark information, merging the information data generated containing watermark.
As a kind of embodiment, the device realizing digital watermarking under cloud environment provided by the present invention can further include:
Memory module, for storing the described uploading information data containing watermark to Cloud Server.
As a kind of embodiment, the device realizing digital watermarking under cloud environment provided by the present invention can further include:
Authentication module, for by contrasting described watermark information and the watermark that extracts in the information, verifies that whether described information is under attack in cloud environment.
The device realizing digital watermarking under cloud environment provided by the present invention is corresponding with said method, can be cross-referenced, does not repeat them here.
To sum up; the device of digital watermarking is realized increased cloud environment provided by the present invention before information is sent to high in the clouds under; the information relevant with the product owner can be generated the watermark information that can be embedded in product; disorder method and spread spectrum is used to strengthen the robustness of watermark in this process; watermark embedment can also be carried out by adopting self-adapting watermarking algorithm; finally the information data containing watermark is passed to high in the clouds to carry out storing or other operations, to reach the effect of the copyright of protection product.
In this instructions, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiment, between each embodiment same or similar part mutually see.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. realize a method for digital watermarking under cloud environment, it is characterized in that, comprising:
The information of representative data owner is generated the initial watermarking information that can be embedded in raw information;
Described initial watermarking information is shifted one's position according to preset rules, and carries out spread processing, generating watermark information;
Piecemeal is carried out to described raw information, frequency domain conversion is carried out to the multiple message block obtained;
The multiple message block be respectively through frequency domain conversion embed described watermark information;
The multiple message block embedding described watermark information are carried out corresponding inverse transformation, merges the information data generated containing watermark.
2. realize the method for digital watermarking under cloud environment as claimed in claim 1, it is characterized in that, described in the multiple message block be respectively through frequency domain conversion embed described watermark information and comprise:
According to energy feature, the multiple message block converted through frequency domain are classified;
For different classifications specifies different intensity factors respectively;
Be respectively the watermark information that each described message block embeds the respective strengths factor.
3. realize the method for digital watermarking under cloud environment as claimed in claim 2, it is characterized in that, described piecemeal is carried out to described raw information, frequency domain conversion is carried out to the multiple message block obtained and comprises:
Piecemeal is carried out to described raw information, discrete cosine transform is carried out to the multiple message block obtained;
Described multiple message block by the described watermark information of embedding carry out corresponding inverse transformation, merge the information data generated containing watermark and comprise:
The multiple message block embedding described watermark information are carried out inverse discrete cosine transform, merges the information data generated containing watermark.
4. realize the method for digital watermarking under the cloud environment as described in any one of claims 1 to 3, it is characterized in that, also comprise:
The described uploading information data containing watermark is stored to Cloud Server.
5. realize the method for digital watermarking under cloud environment as claimed in claim 4, it is characterized in that, also comprise:
By contrasting described watermark information and the watermark that extracts in the information, verify that whether described information is under attack in cloud environment.
6. realize a device for digital watermarking under cloud environment, it is characterized in that, comprising:
Generation module, for generating the initial watermarking information that can be embedded in raw information by the information of representative data owner;
Processing module, for being shifted one's position according to preset rules by described initial watermarking information, and carries out spread processing, generating watermark information;
Conversion module, for carrying out piecemeal to described raw information, carries out frequency domain conversion to the multiple message block obtained;
Merge module, embeds described watermark information for the multiple message block be respectively through frequency domain conversion;
Synthesis module, for the multiple message block embedding described watermark information are carried out corresponding inverse transformation, merges the information data generated containing watermark.
7. realize the device of digital watermarking under cloud environment as claimed in claim 6, it is characterized in that, described merge module comprises:
Taxon, for classifying to the multiple message block converted through frequency domain according to energy feature;
Designating unit, for specifying different intensity factors respectively for different classifications;
Embedded unit, embeds the watermark information of the respective strengths factor for being respectively each described message block.
8. realize the device of digital watermarking under cloud environment as claimed in claim 7, it is characterized in that, described conversion module specifically for: piecemeal is carried out to described raw information, discrete cosine transform is carried out to the multiple message block obtained;
Described synthesis module specifically for: carrying out inverse discrete cosine transform by embedding multiple message block of described watermark information, merging the information data generated containing watermark.
9. realize the device of digital watermarking under the cloud environment as described in any one of claim 6 to 8, it is characterized in that, also comprise:
Memory module, for storing the described uploading information data containing watermark to Cloud Server.
10. realize the device of digital watermarking under cloud environment as claimed in claim 9, it is characterized in that, also comprise:
Authentication module, for by contrasting described watermark information and the watermark that extracts in the information, verifies that whether described information is under attack in cloud environment.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106851227A (en) * | 2017-03-30 | 2017-06-13 | 安徽四创电子股份有限公司 | The system and its addition digital watermark method of monitor video addition digital watermarking |
| CN111340676A (en) * | 2020-02-17 | 2020-06-26 | 北京北信源软件股份有限公司 | Image watermark embedding method, image watermark identification method, image watermark embedding device, image watermark identification device and electronic equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103093127A (en) * | 2013-01-21 | 2013-05-08 | 深圳大学 | Method and system of dynamic copyright protection based on sudoku and multiple digital watermarks |
| CN103310403A (en) * | 2013-05-14 | 2013-09-18 | 深圳市威富多媒体有限公司 | Handwriting characteristic and digital document visible watermark fusion method |
| CN104134185A (en) * | 2014-07-31 | 2014-11-05 | 江西理工大学 | Image watermark embedding and extracting method and system for resisting combination attacks |
-
2015
- 2015-11-03 CN CN201510738250.XA patent/CN105405091A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103093127A (en) * | 2013-01-21 | 2013-05-08 | 深圳大学 | Method and system of dynamic copyright protection based on sudoku and multiple digital watermarks |
| CN103310403A (en) * | 2013-05-14 | 2013-09-18 | 深圳市威富多媒体有限公司 | Handwriting characteristic and digital document visible watermark fusion method |
| CN104134185A (en) * | 2014-07-31 | 2014-11-05 | 江西理工大学 | Image watermark embedding and extracting method and system for resisting combination attacks |
Non-Patent Citations (2)
| Title |
|---|
| 闫丽君 等: "改进的基于DCT的自适应水印算法", 《计算机工程与应用》 * |
| 高海洋 等: "基于置乱变换的DCT域二维数字水印算法", 《科技信息(学术版)》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106851227A (en) * | 2017-03-30 | 2017-06-13 | 安徽四创电子股份有限公司 | The system and its addition digital watermark method of monitor video addition digital watermarking |
| CN111340676A (en) * | 2020-02-17 | 2020-06-26 | 北京北信源软件股份有限公司 | Image watermark embedding method, image watermark identification method, image watermark embedding device, image watermark identification device and electronic equipment |
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