CN107256346A - Protect method, system and the storage medium of file copy right - Google Patents
Protect method, system and the storage medium of file copy right Download PDFInfo
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- CN107256346A CN107256346A CN201710365734.3A CN201710365734A CN107256346A CN 107256346 A CN107256346 A CN 107256346A CN 201710365734 A CN201710365734 A CN 201710365734A CN 107256346 A CN107256346 A CN 107256346A
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- 238000000034 method Methods 0.000 title claims abstract description 68
- 238000006243 chemical reaction Methods 0.000 claims description 84
- 230000009466 transformation Effects 0.000 claims description 36
- 238000000844 transformation Methods 0.000 claims description 34
- 238000012545 processing Methods 0.000 claims description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 230000008859 change Effects 0.000 description 15
- 230000006870 function Effects 0.000 description 12
- 238000004891 communication Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 230000000007 visual effect Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 238000012952 Resampling Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
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- 238000004040 coloring Methods 0.000 description 1
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- 239000006185 dispersion Substances 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
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- 238000010897 surface acoustic wave method Methods 0.000 description 1
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Classifications
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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]
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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]
- G06F21/106—Enforcing content protection by specific content processing
- G06F21/1063—Personalisation
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- Storage Device Security (AREA)
Abstract
The invention discloses a kind of method for protecting file copy right, this method includes：When Resource Server receives the file of application program upload, the corresponding application message of the application program and user profile are obtained；The application message is converted into multipurpose watermarking, and the user profile is converted into fragile watermarking, or, the application message is converted into fragile watermarking, and user profile is converted into multipurpose watermarking；Multipurpose watermarking is embedded into the file using DWT algorithms, and fragile watermarking is embedded into the file using DCT algorithms.The invention also discloses a kind of system for protecting file copy right, and a kind of storage medium.The present invention, so as on the basis of file content is not changed, improve the anti-attack ability of the file, enables the copyright of the file to be effectively protected by simultaneously embedded above-mentioned multipurpose watermarking and fragile watermarking hereof.
Description
Technical field
The present invention relates to digital watermark technology field, more particularly to a kind of method for protecting file copy right, system and storage
Medium.
Background technology
With the popularization of the mobile terminals such as mobile phone, social network sites are increasingly liked by user, and user also increasingly likes
Picture or video are uploaded into these social network sites, when picture or video are uploaded into these social network sites, it is difficult to user
The picture of long pass or the copyright of video are protected.
At present, to the copyright protection of picture or video, it is common practice in picture or video add word or
Logo watermarks, but this protected mode does not possess good robustness, i.e. picture or video and experienced various signal transactings
Or after various attacks, it is difficult to certain fidelity, anti-attack ability is not strong.
The content of the invention
It is a primary object of the present invention to propose a kind of method, system and the storage medium of protection file copy right, it is intended to solve
Certainly user, by after picture or video upload social network sites, experienced various signal transactings or various attacks in the prior art
Afterwards, it is difficult to certain fidelity, the not strong technical problem of anti-attack ability.
To achieve the above object, the present invention provides a kind of method for protecting file copy right, the side of the protection file copy right
Method includes：
When Resource Server receives the file of application program upload, the corresponding application message of the application program is obtained
With user profile；
The application message is converted into multipurpose watermarking, and the user profile is converted into fragile watermarking, or
Person, is converted to fragile watermarking, and the user profile is converted into multipurpose watermarking by the application message；
The multipurpose watermarking is embedded into the file using preset DWT algorithms, and calculated using preset DCT
The fragile watermarking is embedded into the file by method.
Optionally, the application message is converted into multipurpose watermarking, and the user profile is converted into fragility
Watermark, or, the application message is converted into fragile watermarking, and the user profile is converted into multipurpose watermarking
Also include after step：
Disorder processing is carried out to the multipurpose watermarking and fragile watermarking respectively.
Optionally, the file includes picture or video, described to utilize preset DWT algorithms that the multipurpose watermarking is embedding
The step of entering to the file includes：
When the file is video, corresponding first key frame of the video is obtained；
Carry out DWT conversion to first key frame, and the multipurpose watermarking is embedded into first crucial after conversion
The corresponding low frequency part of frame, obtains the second key frame.
Optionally, DWT conversion is carried out to first key frame, and the multipurpose watermarking is embedded into after conversion the
The step of one key frame corresponding low frequency part, includes：
First key frame is divided into multiple images block in spatial domain, DWT changes are carried out to each image block respectively
Change, and the multipurpose watermarking is embedded into the corresponding low frequency part of each image block after conversion.
Optionally, obtain also including after the second key frame：
DWT inverse transformations are carried out to second key frame, obtain being embedded in the 3rd key frame of the multipurpose watermarking.
Optionally, the step of fragile watermarking is embedded into the file by the utilization preset DCT algorithms includes：
Carry out dct transform to the 3rd key frame, and the fragile watermarking is embedded into the 3rd crucial after conversion
The corresponding HFS of frame, obtains the 4th key frame.
Optionally, obtain also including after the 4th key frame:
DCT inverse transformations are carried out to the 4th key frame, obtained while the embedded multipurpose watermarking and fragile watermarking
The 5th key frame, and the video comprising the 5th key frame is preserved to the Resource Server, download for user or
Check.
Optionally, it is described that the multipurpose watermarking is embedded in institute using preset DWT algorithms when the file is picture
The step of stating file, and the fragile watermarking is embedded in into the file using preset DCT algorithms includes：
DWT conversion is carried out to the picture, and the multipurpose watermarking is embedded into the corresponding low frequency of picture after conversion
Part, obtains the first picture；
DWT inverse transformations are carried out to first picture, obtain being embedded in the second picture of the multipurpose watermarking；
Dct transform is carried out to the second picture, and the fragile watermarking is embedded into the second picture pair after conversion
The HFS answered, obtains the 3rd picture；
DCT inverse transformations are carried out to the 3rd picture, the simultaneously embedded multipurpose watermarking and fragile watermarking is obtained
4th picture, and the 4th picture is preserved to the Resource Server, so that user downloads or checks.
In addition, to achieve the above object, the present invention also provides a kind of system for protecting file copy right, the protection file version
The system of power includes：The protection text that memory, processor and being stored in can be run on the memory and on the processor
The program of part copyright, following steps are realized when the program of the protection file copy right is by the computing device：
When Resource Server receives the file of application program upload, the corresponding application message of the application program is obtained
With user profile；
The application message is converted into multipurpose watermarking, and the user profile is converted into fragile watermarking, or
Person, is converted to fragile watermarking, and the user profile is converted into multipurpose watermarking by the application message；
The multipurpose watermarking is embedded into the file using preset DWT algorithms, and calculated using preset DCT
The fragile watermarking is embedded into the file by method.
Optionally, the application message is converted into multipurpose watermarking, and the user profile is converted into fragility
Watermark, or, the application message is converted into fragile watermarking, and the user profile is converted into multipurpose watermarking
After step, when the program of the protection file copy right is executed by processor, following steps can also be realized：
Disorder processing is carried out to the multipurpose watermarking and fragile watermarking respectively.
Optionally, the file includes picture or video, described to utilize preset DWT algorithms that the multipurpose watermarking is embedding
The step of entering to the file includes：
When the file is video, corresponding first key frame of the video is obtained；
Carry out DWT conversion to first key frame, and the multipurpose watermarking is embedded into first crucial after conversion
The corresponding low frequency part of frame, obtains the second key frame.
Optionally, DWT conversion is carried out to first key frame, and the multipurpose watermarking is embedded into after conversion the
The step of one key frame corresponding low frequency part, includes：
First key frame is divided into multiple images block in spatial domain, DWT changes are carried out to each image block respectively
Change, and the multipurpose watermarking is embedded into the corresponding low frequency part of each image block after conversion.
Optionally,, can be with when the program of the protection file copy right is executed by processor after obtaining the second key frame
Realize following steps：
DWT inverse transformations are carried out to second key frame, obtain being embedded in the 3rd key frame of the multipurpose watermarking.
Optionally, the step of fragile watermarking is embedded into the file by above-mentioned utilization preset DCT algorithms includes：
Carry out dct transform to the 3rd key frame, and the fragile watermarking is embedded into the 3rd crucial after conversion
The corresponding HFS of frame, obtains the 4th key frame.
Optionally, after the 4th key frame is obtained, when the program of the protection file copy right is executed by processor, may be used also
To realize following steps：
DCT inverse transformations are carried out to the 4th key frame, obtained while the embedded multipurpose watermarking and fragile watermarking
The 5th key frame, and the video comprising the 5th key frame is preserved to the Resource Server, download for user or
Check.
Optionally, when above-mentioned file is picture, the program of the protection file copy right is by real during the computing device
Existing following steps：
DWT conversion is carried out to the picture, and the multipurpose watermarking is embedded into the corresponding low frequency of picture after conversion
Part, obtains the first picture；
DWT inverse transformations are carried out to first picture, obtain being embedded in the second picture of the multipurpose watermarking；
Dct transform is carried out to the second picture, and the fragile watermarking is embedded into the second picture pair after conversion
The HFS answered, obtains the 3rd picture；
DCT inverse transformations are carried out to the 3rd picture, the simultaneously embedded multipurpose watermarking and fragile watermarking is obtained
4th picture, and the 4th picture is preserved to the Resource Server, so that user downloads or checks.
In addition, to achieve the above object, the present invention also provides the protection that is stored with a kind of storage medium, the storage medium
The program of file copy right, the program of the protection file copy right realizes following steps when being executed by processor：
When Resource Server receives the file of application program upload, the corresponding application message of the application program is obtained
With user profile；
The application message is converted into multipurpose watermarking, and the user profile is converted into fragile watermarking, or
Person, is converted to fragile watermarking, and the user profile is converted into multipurpose watermarking by the application message；
The multipurpose watermarking is embedded into the file using preset DWT algorithms, and calculated using preset DCT
The fragile watermarking is embedded into the file by method.
Optionally, the application message is converted into multipurpose watermarking, and the user profile is converted into fragility
Watermark, or, the application message is converted into fragile watermarking, and the user profile is converted into multipurpose watermarking
After step, when the program of the protection file copy right is executed by processor, following steps can also be realized：
Disorder processing is carried out to the multipurpose watermarking and fragile watermarking respectively.
Optionally, the file includes picture or video, described to utilize preset DWT algorithms that the multipurpose watermarking is embedding
The step of entering to the file includes：
When the file is video, corresponding first key frame of the video is obtained；
Carry out DWT conversion to first key frame, and the multipurpose watermarking is embedded into first crucial after conversion
The corresponding low frequency part of frame, obtains the second key frame.
Optionally, DWT conversion is carried out to first key frame, and the multipurpose watermarking is embedded into after conversion the
The step of one key frame corresponding low frequency part, includes：
First key frame is divided into multiple images block in spatial domain, DWT changes are carried out to each image block respectively
Change, and the multipurpose watermarking is embedded into the corresponding low frequency part of each image block after conversion.
Optionally,, can be with when the program of the protection file copy right is executed by processor after obtaining the second key frame
Realize following steps：
DWT inverse transformations are carried out to second key frame, obtain being embedded in the 3rd key frame of the multipurpose watermarking.
Optionally, the step of fragile watermarking is embedded into the file by above-mentioned utilization preset DCT algorithms includes：
Carry out dct transform to the 3rd key frame, and the fragile watermarking is embedded into the 3rd crucial after conversion
The corresponding HFS of frame, obtains the 4th key frame.
Optionally, after the 4th key frame is obtained, when the program of the protection file copy right is executed by processor, may be used also
To realize following steps：
DCT inverse transformations are carried out to the 4th key frame, obtained while the embedded multipurpose watermarking and fragile watermarking
The 5th key frame, and the video comprising the 5th key frame is preserved to the Resource Server, download for user or
Check.
Optionally, when above-mentioned file is picture, the program of the protection file copy right is by real during the computing device
Existing following steps：
DWT conversion is carried out to the picture, and the multipurpose watermarking is embedded into the corresponding low frequency of picture after conversion
Part, obtains the first picture；
DWT inverse transformations are carried out to first picture, obtain being embedded in the second picture of the multipurpose watermarking；
Dct transform is carried out to the second picture, and the fragile watermarking is embedded into the second picture pair after conversion
The HFS answered, obtains the 3rd picture；
DCT inverse transformations are carried out to the 3rd picture, the simultaneously embedded multipurpose watermarking and fragile watermarking is obtained
4th picture, and the 4th picture is preserved to the Resource Server, so that user downloads or checks.
Method, system and the storage medium of protection file copy right provided by the present invention, can be achieved：It is uploaded in user
In each file of Resource Server, by DWT conversion and dct transform, while the embedded Shandong for including application program application message
Rod watermark and the fragile watermarking comprising user profile, or the embedded fragility for including application program application message simultaneously
Watermark and the multipurpose watermarking comprising user profile, because multipurpose watermarking can resist some malicious attacks, and fragility water
Print then can prevent above-mentioned file to be tampered, so that embedded in the file of multipurpose watermarking and fragile watermarking simultaneously has
Higher attack tolerant and anti-destructive, so as on the basis of file content is not changed, improve the anti-of above-mentioned file and attack
Hit ability, the copyright of above-mentioned file is effectively protected, solve in the prior art user by picture or video
After biography social network sites, after it experienced various signal transactings or various attacks, it is difficult to certain fidelity, attack resistance
Indifferent technical problem.
Brief description of the drawings
Fig. 1 is the hardware architecture diagram for realizing the optional mobile terminal of each embodiment one of the invention；
Fig. 2 protects the schematic flow sheet of the method first embodiment of file copy right for the present invention；
Fig. 3 step S30 shown in method Fig. 2 of present invention protection file copy right refinement step schematic flow sheet；
Fig. 4 step S30 shown in method Fig. 2 of present invention protection file copy right another refinement step schematic flow sheet；
Fig. 5 in the present invention by the schematic flow sheet of multipurpose watermarking and fragile watermarking embedded video simultaneously；
Fig. 6 protects the schematic flow sheet of the embodiment of method the 5th of file copy right for the present invention；
Fig. 7 in the present invention by the schematic flow sheet of multipurpose watermarking and fragile watermarking embedded picture simultaneously；
The structural representation for the software runtime environment that Fig. 8 is related to for the system of present invention protection file copy right.
The realization, functional characteristics and advantage of the object of the invention will be described further referring to the drawings in conjunction with the embodiments.
Embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
In follow-up description, the suffix using such as " module ", " part " or " unit " for representing element is only
Be conducive to the explanation of the present invention, itself there is no a specific meaning.Therefore, " module ", " part " or " unit " can be mixed
Ground is used.
Terminal can be implemented in a variety of manners.For example, the terminal described in the present invention can include such as mobile phone, flat board
Computer, notebook computer, palm PC, personal digital assistant (Personal Digital Assistant, PDA), portable
Media player (Portable Media Player, PMP), guider, wearable device, Intelligent bracelet, pedometer etc. are moved
Move the fixed terminals such as terminal, and numeral TV, desktop computer.
Referring to Fig. 1, hardware configuration signals of the Fig. 1 for the optional mobile terminal of realization each embodiment one of the invention
Figure, the mobile terminal 1 00 can include：WiFi module 102, A/V (audio/video) input block 104, display unit 106, use
The parts such as family input block 107, interface unit 108, memory 109, processor 110 and power supply 111.People in the art
Member it is appreciated that the mobile terminal structure that shows does not constitute the restriction to mobile terminal in Fig. 1, mobile terminal can include than
More or less parts are illustrated, some parts or different parts arrangement is either combined.
The all parts of mobile terminal are specifically introduced with reference to Fig. 1：
WiFi belongs to short range wireless transmission technology, and mobile terminal can help user's transmitting-receiving electricity by WiFi module 102
Sub- mail, browse webpage and access streaming video etc., it has provided the user wireless broadband internet and accessed.Although Fig. 1 shows
Go out WiFi module 102, but it is understood that, it is simultaneously not belonging to must be configured into for mobile terminal, completely can be according to need
To be omitted in the essential scope for do not change invention.
A/V input blocks 104 are used to receive audio or video signal.A/V input blocks 104 can include graphics processor
(Graphics Processing Unit, GPU) 1041,1041 pairs of graphics processor is in video acquisition mode or image capture mould
The static images or the view data of video obtained in formula by image capture apparatus (such as camera) are handled.Figure after processing
As frame may be displayed on display unit 106.Picture frame after being handled through graphics processor 1041 can be stored in memory 109
It is transmitted in (or other storage mediums) or via WiFi module 102.Display unit 106 is used to show what is inputted by user
Information or the information for being supplied to user.Display unit 106 may include display panel 1061, can use liquid crystal display
(Liquid Crystal Display, LCD), Organic Light Emitting Diode (Organic Light-Emitting Diode,
) etc. OLED form configures display panel 1061.
User input unit 107 can be used for the numeral or character information for receiving input, and produce the use with mobile terminal
The key signals input that family is set and function control is relevant.Specifically, user input unit 107 may include contact panel 1071 with
And other input equipments 1072.Contact panel 1071, also referred to as touch-screen, collect touch operation of the user on or near it
(such as user is using any suitable objects such as finger, stylus or annex on contact panel 1071 or in contact panel 1071
Neighbouring operation), and corresponding attachment means are driven according to formula set in advance.Contact panel 1071 may include touch detection
Two parts of device and touch controller.Wherein, touch detecting apparatus detects the touch orientation of user, and detects touch operation band
The signal come, transmits a signal to touch controller；Touch controller receives touch information from touch detecting apparatus, and by it
It is converted into contact coordinate, then gives processor 110, and the order sent of reception processing device 110 and can be performed.In addition, can
To realize contact panel 1071 using polytypes such as resistance-type, condenser type, infrared ray and surface acoustic waves.Except contact panel
1071, user input unit 107 can also include other input equipments 1072.Specifically, other input equipments 1072 can be wrapped
Include but be not limited to physical keyboard, in function key (such as volume control button, switch key etc.), trace ball, mouse, action bars etc.
One or more, do not limit herein specifically.
Further, contact panel 1071 can cover display panel 1061, detect thereon when contact panel 1071 or
After neighbouring touch operation, processor 110 is sent to determine the type of touch event, with preprocessor 110 according to touch thing
The type of part provides corresponding visual output on display panel 1061.Although in Fig. 1, contact panel 1071 and display panel
1061 be input and the output function that mobile terminal is realized as two independent parts, but in certain embodiments, can
By contact panel 1071 and the input that is integrated and realizing mobile terminal of display panel 1061 and output function, not do specifically herein
Limit.
Interface unit 108 is connected the interface that can pass through as at least one external device (ED) with mobile terminal 1 00.For example,
External device (ED) can include wired or wireless head-band earphone port, external power source (or battery charger) port, wired or nothing
Line FPDP, memory card port, the port for connecting the device with identification module, audio input/output (I/O) end
Mouth, video i/o port, ear port etc..Interface unit 108 can be used for receiving the input from external device (ED) (for example, number
It is believed that breath, electric power etc.) and the input received is transferred to one or more elements in mobile terminal 1 00 or can be with
For transmitting data between mobile terminal 1 00 and external device (ED).
Memory 109 can be used for storage software program and various data.Memory 109 can mainly include storing program area
And storage data field, wherein, application program (the such as sound that storing program area can be needed for storage program area, at least one function
Sound playing function, image player function etc.) etc.；Storage data field can be stored uses created data (such as according to mobile phone
Voice data, phone directory etc.) etc..In addition, memory 109 can include high-speed random access memory, it can also include non-easy
The property lost memory, for example, at least one disk memory, flush memory device or other volatile solid-state parts.
Processor 110 is the control centre of mobile terminal, utilizes each of various interfaces and the whole mobile terminal of connection
Individual part, by operation or performs and is stored in software program and/or module in memory 109, and calls and be stored in storage
Data in device 109, perform the various functions and processing data of mobile terminal, so as to carry out integral monitoring to mobile terminal.Place
Reason device 110 may include one or more processing units；It is preferred that, processor 110 can integrated application processor and modulatedemodulate mediate
Device is managed, wherein, application processor mainly handles operating system, user interface and application program etc., and modem processor is main
Handle radio communication.It is understood that above-mentioned modem processor can not also be integrated into processor 110.
Mobile terminal 1 00 can also include the power supply 111 (such as battery) powered to all parts, it is preferred that power supply 111
Can be logically contiguous by power-supply management system and processor 110, so as to realize management charging by power-supply management system, put
The function such as electricity and power managed.
Based on above-mentioned mobile terminal hardware configuration and communications network system, the method for proposing present invention protection file copy right
Each embodiment.
Following examples of the present invention provide a kind of method for protecting file copy right, and this method passes through DWT (Discrete
Wavelet Transform, wavelet transform) (Discrete Cosine Transform, discrete cosine becomes with DCT for conversion
Change) conversion, it is uploaded in user using mobile terminal in each file of Resource Server, while embedded should comprising application program
With the multipurpose watermarking of information, and the fragile watermarking comprising user profile, so that on the basis of file content is not changed,
The anti-attack ability of above-mentioned file is improved, the copyright of above-mentioned file is effectively protected.
Reference picture 2, Fig. 2 is the schematic flow sheet of the method first embodiment of present invention protection file copy right, present invention guarantor
In the method first embodiment for protecting file copy right, the method for the protection file copy right includes：
Step S100, when Resource Server receives the file of application program upload, obtains the application program correspondence
Application message and user profile.
It is understood that user is during using above-mentioned mobile terminal 1 00, some for sometimes shooting oneself
Photo or video are uploaded to some such as QQ spaces, wechat circle of friends, social network sites of microblogging, are shared with online friend, therefore,
The corresponding Resource Server of above-mentioned social network sites obtains the application program corresponding when receiving the file of application program upload
Application message and user profile.
Wherein, above-mentioned application message include application program correspondence LOGO (LOGOtype, trade mark/logo), icon, trade mark,
User-defined identification etc.；Above-mentioned user profile include User logs in using the user name of above-mentioned application program, user's pet name, No. ID
Deng, can also include user-defined information, such as address name, from editor keyword.
For example, user by application program " QQ " on " QQ spaces " after transmitting file, " QQ spaces " corresponding resource service
Device just obtains " QQ " or " QQ spaces " corresponding LOGO as application message, and obtains User logs in " QQ " or " QQ spaces " simultaneously
User profile.
Step S200, is converted to multipurpose watermarking, and the user profile is converted into fragility by the application message
Property watermark, or, the application message is converted into fragile watermarking, and the user profile is converted into robustness water
Print.
In the present embodiment, Resource Server corresponding application message of the application program of transmitting file on getting is believed with user
After breath, the application message got is converted into multipurpose watermarking respectively, user profile is converted into fragile watermarking；Or will
The application message got is converted to fragile watermarking, and user profile is converted into multipurpose watermarking.
Wherein, digital watermarking (Digital Watermarking) technology is that some identification informations (i.e. digital watermarking) are straight
Connect among embedded digital carrier (including multimedia, document, software etc.), but do not influence the use value of original vector, be also not easy
Perceived or noticed by the consciousness system (such as vision or auditory system) of people.Information in the carrier is hidden by these, can be with
Reach confirmation creator of content, buyer, transmission secret information or judge whether carrier the purpose such as is tampered.According to watermark
Above-mentioned digital watermarking can be divided into multipurpose watermarking and the class of fragile watermarking two by characteristic.
Wherein, multipurpose watermarking is mainly used in copyright identifying Copyright Information, is existed using this digital watermark
The sign (i.e. sequence number) of embedded founder, the beacon information of the owner, or insertion buyer in the data of content of multimedia.
It in general pattern except that can handle (such as：Filtering, plus noise, replacement, compression etc.) middle existence is outside, moreover it is possible to resist some malice
Attack.The requirement of fragile watermarking and multipurpose watermarking is on the contrary, fragile watermarking is mainly used in integrity protection, and this watermark is same
Sample is the embedded sightless information in file content data.When file content changes, these watermark informations can occur
It is corresponding to change, so as to identify whether initial data is tampered.The processing of fragile watermarking reply general pattern is (such as：Filtering,
Plus noise, replacement, compression etc.) there is stronger immunocompetence (robustness), while requiring there is stronger sensitiveness again, both allow one
Determine the distortion of degree, distortion situation can be detected again, the change to signal is very sensitive, can be according to the state of fragile watermark
It may determine that whether data are tampered with.
Wherein, above-mentioned application message is being converted into multipurpose watermarking, user profile is converted into fragile watermarking, or
Above-mentioned application message is converted into fragile watermarking, when user profile is converted into multipurpose watermarking, can use and be calculated based on small echo
The digital watermarking generation of method and hidden algorithm：Using wavelet algorithm, the spatial domain data of digital picture is converted by DWT and changed
For corresponding wavelet domain coefficients, and according to information type to be concealed, appropriate coding and deformation are carried out to it, further according to hiding
The size of information content and corresponding Security Target, select square frequency coefficient sequence, finally, by the frequency coefficient of digital picture
It is inverse transformed to be converted into spatial domain data.
The multipurpose watermarking, is embedded into the file by step S300 using preset DWT algorithms, and using in advance
The fragile watermarking is embedded into the file by the DCT algorithms put.
In the present embodiment, above-mentioned multipurpose watermarking can be embedded into above-mentioned by Resource Server using preset DWT algorithms
In file, and using preset DCT algorithms above-mentioned fragile watermarking is embedded into simultaneously in above-mentioned file.
Wherein, DWT conversion is the partial transformation of space and frequency, is translated using basic function and the flexible one group of letter constituted
Number is represented or approximation signal (function).Watermark signal is embedded on the high frequency band coefficient of the digital picture after wavelet transformation
When, not only allow for carrying out additivity, multiplying property, quantization, replacement etc. to DWT conversion coefficients, human visual system is additionally contemplates that sometimes
Some characteristics, such as visual masking, frequency sensitivity, luminosity sensitivity.
And dct transform not only has good energy compression ability, and decorrelation ability is also relatively strong, due to digital picture
Sampled value of the binary function at discrete grid block point is regarded as, its content typically has autocorrelation to a certain extent,
That is the generally change of the content of topography is little.Therefore, image is after dct transform, and most of energy all concentrates on low
Frequency part, due to human visual system to image feel be concentrated mainly on low-frequency range, so watermark signal is embedded in figure
After the low frequency of picture, can having preferable anti-JPEG, (Joint Photographic Experts Group, joint image expert is small
Group) compression, MPEG (Moving Picture Experts Group, dynamic image expert group) compressions and nonshrink put resampling etc.
Characteristic.
Wherein, when above-mentioned multipurpose watermarking is embedded into file using DWT algorithms, it can generate and calculate by watermark signal first
Method generates watermark signal N, and original host image is carried out into DWT conversion, watermark signal is embedded in its high frequency coefficient, so as to complete
The superposition of watermark signal, then carries out DWT inverse transformations, so as to obtain being embedded in the image after above-mentioned multipurpose watermarking.
When using DCT algorithms, above-mentioned fragile watermarking is embedded into file, it can be given birth to first by watermark signal generating algorithm
Into watermark signal W, former host image is secondly subjected to dct transform by 8 × 8 piecemeals, watermark signal W is then embedded in its part
In DCT low frequency coefficients, so as to complete the superposition of watermark signal, piecemeal DCT inverse transformations are finally carried out, obtain being embedded in above-mentioned fragility
Image after watermark.
Specifically, after above-mentioned multipurpose watermarking and fragile watermarking are embedded into above-mentioned file simultaneously, then will bag
File containing above-mentioned multipurpose watermarking and fragile watermarking is stored in above-mentioned Resource Server, so that other users are downloaded or are looked into
See.Wherein, when other users are downloaded in above-mentioned Resource Server or check above-mentioned file, uploader is included in above-mentioned file
The application message watermark and user profile watermark of used application program.
For example, user's first uploads one in " QQ spaces " from after taking pictures by application program " QQ ", then it is automatic in the Zhang Zhao
Embedded " QQ " or " QQ spaces " corresponding LOGO watermarks in piece, and the corresponding user of embedded user's first simultaneously in this photo
Information watermark.User's second is downloaded in " QQ spaces " after this photo that user's first is uploaded, then while including in the photo downloaded
" QQ spaces " corresponding LOGO watermarks, and the corresponding user profile watermark of user's first.
The method of protection file copy right described in the present embodiment, is uploaded in each file of Resource Server in user,
By DWT conversion and dct transform, while being embedded in the multipurpose watermarking comprising application program application message and including user profile
Fragile watermarking, or the simultaneously embedded fragile watermarking comprising application program application message and the Shandong comprising user profile
Rod watermark, because multipurpose watermarking can resist some malicious attacks, and fragile watermarking can then prevent that above-mentioned file from being usurped
Change, so that the file that embedded in multipurpose watermarking and fragile watermarking simultaneously is provided with higher attack tolerant and collapse resistance
Property, so as on the basis of file content is not changed, improve the anti-attack ability of above-mentioned file, enable the copyright of above-mentioned file
Access and be effectively protected, solve user in the prior art and, by after picture or video upload social network sites, experienced respectively
Plant after signal transacting or various attacks, it is difficult to certain fidelity, the not strong technical problem of anti-attack ability.
Further, the method first embodiment of file copy right is protected based on the invention described above, present invention protection text is proposed
In the method second embodiment of part copyright, the present embodiment, the application message being turned described in step S200 shown in above-mentioned Fig. 2
Multipurpose watermarking is changed to, and the user profile is converted into fragile watermarking, or, the application message is converted to crisp
Weak property watermark, and the step of the user profile is converted into multipurpose watermarking after also include：
Disorder processing is carried out to the multipurpose watermarking and fragile watermarking respectively.
Wherein, disorder processing refers to upset the information order of image, on the position that a pixels are moved to b pixels, b pictures
Element is moved on the position of c pixels, it is transformed into the disorderly and unsystematic image for being difficult to recognize.Believe the image of scramble as secret
Breath be hidden again, can very limits raising hidden carrier robustness.
Specifically, disorderly and unsystematic by two after above-mentioned multipurpose watermarking and fragile watermarking progress disorder processing, will be obtained
Watermark, this watermark achromatization, texture-free, amorphism can not therefrom read any information, then, such watermark is embedding
Enter and be just difficult to cause the width graph coloring coloured silk, texture, the too big change of shape during to another width normal image, will not even change
Become, such human eye is not just easy to identify, so as to escape from third-party sight.
Wherein it is possible to be entered respectively to the multipurpose watermarking and fragile watermarking at line shuffle using Arnold conversion algorithm
Reason.Arnold conversion can be regarded as the process for stretching, compress, folding and splicing, by this process by the numeral of discretization
Point in image array is rearranged.
Meanwhile, above-mentioned multipurpose watermarking and fragile watermarking are subjected to disorder processing, malicious attack can be effective against.This
It is that, because carrying out the process of decommutation to Secret Image, each of the information dispersion for just make to apply on image, drawing to picture is local,
The random noise of point-like is formd, the degree to visual impact is little.
After carrying out disorder processing to the multipurpose watermarking and fragile watermarking respectively, you can calculated using preset DWT
Multipurpose watermarking is embedded into above-mentioned file by method, and fragile watermarking is embedded into above-mentioned text using preset DCT algorithms
In part.
Described in the present embodiment protection file copy right method, by above-mentioned application message be converted to multipurpose watermarking and
Above-mentioned user profile is converted into fragile watermarking, or, the application message is converted into fragile watermarking and by described in
User profile is converted to after multipurpose watermarking, and the multipurpose watermarking and fragile watermarking after conversion are entered at line shuffle respectively
Reason, so as to improve the robustness of above-mentioned multipurpose watermarking and fragile watermarking.
Further, the method first embodiment of file copy right is protected based on the invention described above, present invention protection text is proposed
The method 3rd embodiment of part copyright, reference picture 3, Fig. 3 step S300 shown in method Fig. 2 of present invention protection file copy right
In refinement step schematic flow sheet, the present embodiment, the preset DWT algorithms of utilization shown in above-mentioned Fig. 2 described in step S300 will
The step of multipurpose watermarking is embedded into the file includes：
Step S311, when the file is video, obtains corresponding first key frame of the video；
Step S312, DWT conversion is carried out to first key frame, and the multipurpose watermarking is embedded into after conversion
The corresponding low frequency part of first key frame, obtains the second key frame.
In the present embodiment, when above-mentioned multipurpose watermarking and fragile watermarking are embedded into file, this document is first judged
Type, if this document be video, obtain corresponding first key frame of the video.Wherein, the first key frame is regarded equivalent to above-mentioned
Original painting in frequency 2 D animation, refers to that frame residing for the key operations in role or object of which movement or change.
After corresponding first key frame of the video is obtained, DWT conversion is carried out to first key frame, and by above-mentioned Shandong
Rod watermark is embedded into the corresponding low frequency part of the first key frame after conversion, obtains the second key frame.
Further, DWT conversion is carried out to the first key frame described in above-mentioned steps S312, and by the multipurpose watermarking
The step of being embedded into the first key frame corresponding low frequency part after conversion includes：
First key frame is divided into multiple images block in spatial domain, DWT changes are carried out to each image block respectively
Change, and the multipurpose watermarking is embedded into the corresponding low frequency part of each image block after conversion.
Further, also include after the second key frame is obtained：
Step S313, carries out DWT inverse transformations to second key frame, obtains being embedded in the 3rd pass of the multipurpose watermarking
Key frame.
The method of protection file copy right described in the present embodiment, when above-mentioned file is video, obtains the key of the video
Frame, then carries out DWT conversion, and above-mentioned multipurpose watermarking is embedded into the corresponding low frequency of key frame after conversion to the key frame
Part, then carries out DWT inverse transformations again, just can obtain being embedded in the key frame of above-mentioned multipurpose watermarking, due to multipurpose watermarking
Some malicious attacks can be resisted, so that the video that embedded in multipurpose watermarking is provided with higher attack tolerant, are solved
The not strong technical problem of the anti-attack ability of video in the prior art.
Further, method first, the 3rd embodiment of file copy right are protected based on the invention described above, proposes that the present invention is protected
Protect the method fourth embodiment of file copy right, reference picture 4, Fig. 4 steps shown in method Fig. 2 of present invention protection file copy right
In S300 another refinement step schematic flow sheet, the present embodiment, the utilization shown in above-mentioned Fig. 2 described in step S300 is preset
The step of fragile watermarking is embedded into the file by DCT algorithms includes：
Step S314, dct transform is carried out to the 3rd key frame, and the fragile watermarking is embedded into after conversion
The corresponding HFS of 3rd key frame, obtains the 4th key frame.
It is then crucial to the 3rd again after obtaining being embedded in the 3rd key frame of above-mentioned multipurpose watermarking in this implementation
Frame carries out dct transform, and above-mentioned fragile watermarking is embedded into the corresponding HFS of the 3rd key frame after conversion, obtains the
Four key frames.
Further, also include after the 4th key frame is obtained:
Step S315, DCT inverse transformations are carried out to the 4th key frame, obtain the embedded multipurpose watermarking simultaneously and crisp
5th key frame of weak property watermark, and the video comprising the 5th key frame is preserved to the Resource Server, for
Family is downloaded or checked.
In the present embodiment, after the 5th key frame of simultaneously embedded above-mentioned multipurpose watermarking and fragile watermarking is obtained,
Video comprising the 5th key frame is preserved to above-mentioned Resource Server again, so that user downloads or checks, wherein, other
When user downloads in above-mentioned Resource Server or checks above-mentioned video, then application is used comprising uploader in above-mentioned video
The application message watermark and user profile watermark of program.
For example, after user's first uploads one section of video by application program " QQ " in " QQ spaces ", then it is automatic in the video
Embedded " QQ " or " QQ spaces " corresponding LOGO watermarks, and the corresponding user profile water of embedded user's first simultaneously in the video
Print.User's second is downloaded in " QQ spaces " after the video that user's first is uploaded, then simultaneously comprising " QQ spaces " in the video downloaded
Corresponding LOGO watermarks, and the corresponding user profile watermark of user's first.
In order to be better understood from the present invention, reference picture 5, Fig. 5 is in the present invention that multipurpose watermarking is same with fragile watermarking
When be embedded in video schematic flow sheet.
The method of protection file copy right described in the present embodiment, when above-mentioned file is video, to including above-mentioned fragility
3rd key frame of watermark carries out dct transform, and it is corresponding that above-mentioned fragile watermarking is embedded into the 3rd key frame after conversion
HFS, then carries out DCT inverse transformations again, obtains the key frame of simultaneously embedded above-mentioned multipurpose watermarking and fragile watermarking,
Finally the video again comprising the key frame is preserved to above-mentioned Resource Server, so that user downloads or checks.Due to robust
Property watermark can resist some malicious attacks, and fragile watermarking can then prevent that above-mentioned video is tampered, so that simultaneously embedding
The video for having entered multipurpose watermarking and fragile watermarking is provided with higher attack tolerant and anti-destructive, solves prior art
Middle video is after it experienced various signal transactings or various attacks, it is difficult to which, with certain fidelity, anti-attack ability is not strong
Technical problem.
Further, further, the method first, the three, the 4th for protecting file copy right based on the invention described above is implemented
Example, proposes the embodiment of method the 5th of present invention protection file copy right, reference picture 6, and Fig. 6 is the side of present invention protection file copy right
In the schematic flow sheet of the embodiment of method the 5th, the present embodiment, when above-mentioned file is picture, in step S300 shown in above-mentioned Fig. 2
The multipurpose watermarking is embedded in the file by the preset DWT algorithms of described utilization, and utilizes preset DCT algorithms by institute
Stating the fragile watermarking insertion file includes：
Step S321, DWT conversion is carried out to the picture, and the multipurpose watermarking is embedded into the picture pair after conversion
The low frequency part answered, obtains the first picture；
Step S322, carries out DWT inverse transformations to first picture, obtains being embedded in the second figure of the multipurpose watermarking
Piece；
Step S323, dct transform is carried out to the second picture, and the fragile watermarking is embedded into after conversion the
The corresponding HFS of two pictures, obtains the 3rd picture；
Step S324, DCT inverse transformations are carried out to the 3rd picture, are obtained while the embedded multipurpose watermarking and fragility
Property watermark the 4th picture, and the 4th picture is preserved to the Resource Server, so that user downloads or checks.
In the present embodiment, when above-mentioned multipurpose watermarking and fragile watermarking are embedded into file, this document is first judged
Type, if this document be picture, to the picture carry out DWT conversion, and by above-mentioned multipurpose watermarking be embedded into conversion after
The corresponding low frequency part of picture, obtains the first picture, then carries out DWT inverse transformations to first picture, obtains being embedded in robustness
The second picture of watermark；Followed by the second picture carry out dct transform, and by above-mentioned fragile watermarking be embedded into conversion after
The corresponding HFS of second picture, then carries out DCT inverse transformations, obtains while the embedded multipurpose watermarking and fragility water
4th picture of print, and the 4th picture is preserved to above-mentioned Resource Server again, so that user downloads or checks.
In order to be better understood from the present invention, reference picture 7, Fig. 7 is in the present invention that multipurpose watermarking is same with fragile watermarking
When be embedded in picture schematic flow sheet.
The method of protection file copy right described in the present embodiment, is figure when user is uploaded to the above-mentioned file of Resource Server
During piece, using DWT algorithms and DCT algorithms, by the multipurpose watermarking comprising application program application message with including user profile
Fragile watermarking, or the fragile watermarking comprising application program application message and the multipurpose watermarking comprising user profile is embedding
Enter in the picture, because multipurpose watermarking can resist some malicious attacks, and fragile watermarking can then prevent above-mentioned picture quilt
Distort, so that the picture that embedded in multipurpose watermarking and fragile watermarking simultaneously is provided with higher attack tolerant and anti-broken
Bad property, solve in the prior art picture after it experienced various signal transactings or various attacks, it is difficult to certain guarantor
True degree, the not strong technical problem of anti-attack ability.
Further, the present invention also provides a kind of system for protecting file copy right, and the system of the protection file copy right includes：
The program of memory, processor and the protection file copy right that is stored on the memory and can run on the processor,
Following steps are realized when the program of the protection file copy right is by the computing device：
When Resource Server receives the file of application program upload, the corresponding application message of the application program is obtained
With user profile；
The application message is converted into multipurpose watermarking, and the user profile is converted into fragile watermarking, or
Person, is converted to fragile watermarking, and the user profile is converted into multipurpose watermarking by the application message；
The multipurpose watermarking is embedded into the file using preset DWT algorithms, and calculated using preset DCT
The fragile watermarking is embedded into the file by method.
Wherein, the application message is converted into multipurpose watermarking, and the user profile is converted into fragility water
Print, or, the application message is converted into fragile watermarking, and the user profile is converted to the step of multipurpose watermarking
After rapid, when the program of the protection file copy right is by the computing device, following steps can also be realized：
Disorder processing is carried out to the multipurpose watermarking and fragile watermarking respectively.
Wherein, the file includes picture or video, described to be embedded in the multipurpose watermarking using preset DWT algorithms
The step of to the file, includes：
When the file is video, corresponding first key frame of the video is obtained；
Carry out DWT conversion to first key frame, and the multipurpose watermarking is embedded into first crucial after conversion
The corresponding low frequency part of frame, obtains the second key frame.
Wherein, to first key frame carry out DWT conversion, and by the multipurpose watermarking be embedded into conversion after first
The step of key frame corresponding low frequency part, includes：
First key frame is divided into multiple images block in spatial domain, DWT changes are carried out to each image block respectively
Change, and the multipurpose watermarking is embedded into the corresponding low frequency part of each image block after conversion.
Wherein, obtain after the second key frame, when the program of the protection file copy right is by the computing device, may be used also
To realize following steps：
DWT inverse transformations are carried out to second key frame, obtain being embedded in the 3rd key frame of the multipurpose watermarking.
Wherein, the step of fragile watermarking is embedded into the file by above-mentioned utilization preset DCT algorithms includes：
Carry out dct transform to the 3rd key frame, and the fragile watermarking is embedded into the 3rd crucial after conversion
The corresponding HFS of frame, obtains the 4th key frame.
Wherein, after the 4th key frame is obtained, when the program of the protection file copy right is by the computing device, also
Following steps can be realized：
DCT inverse transformations are carried out to the 4th key frame, obtained while the embedded multipurpose watermarking and fragile watermarking
The 5th key frame, and the video comprising the 5th key frame is preserved to the Resource Server, download for user or
Check.
Wherein, when above-mentioned file is picture, realized when the program of the protection file copy right is by the computing device
Following steps：
DWT conversion is carried out to the picture, and the multipurpose watermarking is embedded into the corresponding low frequency of picture after conversion
Part, obtains the first picture；
DWT inverse transformations are carried out to first picture, obtain being embedded in the second picture of the multipurpose watermarking；
Dct transform is carried out to the second picture, and the fragile watermarking is embedded into the second picture pair after conversion
The HFS answered, obtains the 3rd picture；
DCT inverse transformations are carried out to the 3rd picture, the simultaneously embedded multipurpose watermarking and fragile watermarking is obtained
4th picture, and the 4th picture is preserved to the Resource Server, so that user downloads or checks.
In order to be better understood from the present invention, reference picture 8, the software that Fig. 8 is related to for the system of present invention protection file copy right
In the structural representation of running environment, the present embodiment, the system of above-mentioned protection file copy right may include：Processor 110, for example
CPU, network interface 1004, user interface 1003, memory 109, communication bus 1002.Wherein, communication bus 1002 is used for real
Connection communication between these existing components；User interface 1003 can include the interface unit 108 and display list shown in above-mentioned Fig. 1
Member 106；Network interface 1004 can optionally include wireline interface, the wave point (such as WI-FI interfaces) of standard；Memory
109 can be high-speed RAM memory or stable memory (non-volatile memory), such as disk storage
Device；Memory 109 optionally can also be the storage device independently of aforementioned processor 110.
It will be understood by those skilled in the art that the structure shown in Fig. 8 is not constituted to above-mentioned protection file copy right system
The restriction of system, can be included than illustrating more or less parts, either combine some parts or different parts arrangement.
As shown in figure 8, as in a kind of memory 109 of storage medium, operating system, network service mould can be included
Block, Subscriber Interface Module SIM and the program for protecting file copy right.
As shown in figure 8, network interface 1004 is mainly used in connecting background server, carrying out data with background server leads to
Letter；User interface 1003 is mainly used in connection client (user terminal), and row data communication is entered with client；And processor 110 can
For calling the program of the protection file copy right stored in memory 109, and perform corresponding operation.
Wherein, the corresponding embodiment of the system of the protection file copy right and the method for foregoing protection file copy right are corresponding each
Individual embodiment is essentially identical, therefore will not be repeated here.
Further, the present invention also provides a kind of program for the protection file copy right that is stored with storage medium, storage medium,
The program of the protection file copy right realizes following steps when being executed by processor：
When Resource Server receives the file of application program upload, the corresponding application message of the application program is obtained
With user profile；
The application message is converted into multipurpose watermarking, and the user profile is converted into fragile watermarking, or
Person, is converted to fragile watermarking, and the user profile is converted into multipurpose watermarking by the application message；
The multipurpose watermarking is embedded into the file using preset DWT algorithms, and calculated using preset DCT
The fragile watermarking is embedded into the file by method.
Wherein, the application message is converted into multipurpose watermarking, and the user profile is converted into fragility water
Print, or, the application message is converted into fragile watermarking, and the user profile is converted to the step of multipurpose watermarking
After rapid, when the program of the protection file copy right is executed by processor, following steps can also be realized：
Disorder processing is carried out to the multipurpose watermarking and fragile watermarking respectively.
Wherein, the file includes picture or video, described to be embedded in the multipurpose watermarking using preset DWT algorithms
The step of to the file, includes：
When the file is video, corresponding first key frame of the video is obtained；
Carry out DWT conversion to first key frame, and the multipurpose watermarking is embedded into first crucial after conversion
The corresponding low frequency part of frame, obtains the second key frame.
Wherein, to first key frame carry out DWT conversion, and by the multipurpose watermarking be embedded into conversion after first
The step of key frame corresponding low frequency part, includes：
First key frame is divided into multiple images block in spatial domain, DWT changes are carried out to each image block respectively
Change, and the multipurpose watermarking is embedded into the corresponding low frequency part of each image block after conversion.
Wherein,, can also be real when the program of the protection file copy right is executed by processor after obtaining the second key frame
Existing following steps：
DWT inverse transformations are carried out to second key frame, obtain being embedded in the 3rd key frame of the multipurpose watermarking.
Wherein, the step of fragile watermarking is embedded into the file by above-mentioned utilization preset DCT algorithms includes：
Carry out dct transform to the 3rd key frame, and the fragile watermarking is embedded into the 3rd crucial after conversion
The corresponding HFS of frame, obtains the 4th key frame.
Wherein, after the 4th key frame is obtained, the program of the protection file copy right is when being executed by processor, can be with
Realize following steps：
DCT inverse transformations are carried out to the 4th key frame, obtained while the embedded multipurpose watermarking and fragile watermarking
The 5th key frame, and the video comprising the 5th key frame is preserved to the Resource Server, download for user or
Check.
Wherein, when above-mentioned file is picture, realized when the program of the protection file copy right is by the computing device
Following steps：
DWT conversion is carried out to the picture, and the multipurpose watermarking is embedded into the corresponding low frequency of picture after conversion
Part, obtains the first picture；
DWT inverse transformations are carried out to first picture, obtain being embedded in the second picture of the multipurpose watermarking；
Dct transform is carried out to the second picture, and the fragile watermarking is embedded into the second picture pair after conversion
The HFS answered, obtains the 3rd picture；
DCT inverse transformations are carried out to the 3rd picture, the simultaneously embedded multipurpose watermarking and fragile watermarking is obtained
4th picture, and the 4th picture is preserved to the Resource Server, so that user downloads or checks.
Specifically, the corresponding embodiment of the storage medium each embodiment corresponding with the method for foregoing protection file copy right
It is essentially identical, therefore will not be repeated here.
It should be noted that herein, term " comprising ", "comprising" or its any other variant are intended to non-row
His property is included, so that process, method, article or system including a series of key elements not only include those key elements, and
And also including other key elements being not expressly set out, or also include for this process, method, article or system institute inherently
Key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that including this
Also there is other identical element in process, method, article or the system of key element.
The embodiments of the present invention are for illustration only, and the quality of embodiment is not represented.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can add the mode of required general hardware platform to realize by software, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Understood based on such, technical scheme is substantially done to prior art in other words
Going out the part of contribution can be embodied in the form of software product, and the computer software product is stored in one as described above
In storage medium (such as ROM/RAM, magnetic disc, CD), including some instructions to cause a station terminal equipment (can be mobile phone,
Computer, server, or network equipment etc.) perform method described in each of the invention embodiment.
The preferred embodiments of the present invention are these are only, are not intended to limit the scope of the invention, it is every to utilize this hair
Equivalent structure or equivalent flow conversion that bright specification and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of method for protecting file copy right, it is characterised in that the method for the protection file copy right includes：
When Resource Server receives the file of application program upload, the corresponding application message of the application program is obtained with using
Family information；
The application message is converted into multipurpose watermarking, and the user profile is converted into fragile watermarking, or, will
The application message is converted to fragile watermarking, and the user profile is converted into multipurpose watermarking；
The multipurpose watermarking is embedded into the file using preset wavelet transform DWT algorithms, and using in advance
The fragile watermarking is embedded into the file by the discrete cosine transform algorithm put.
2. the method for file copy right is protected as claimed in claim 1, it is characterised in that the application message is converted into robust
Property watermark, and the user profile is converted into fragile watermarking, or, the application message is converted into fragility water
Also include after the step of printing, and the user profile is converted into multipurpose watermarking：
Disorder processing is carried out to the multipurpose watermarking and fragile watermarking respectively.
3. the method for file copy right is protected as claimed in claim 1, it is characterised in that the file includes picture or video,
The step of multipurpose watermarking is embedded into the file by the utilization preset DWT algorithms includes：
When the file is video, corresponding first key frame of the video is obtained；
DWT conversion is carried out to first key frame, and the multipurpose watermarking is embedded into the first key frame pair after conversion
The low frequency part answered, obtains the second key frame.
4. the method for file copy right is protected as claimed in claim 3, it is characterised in that DWT is carried out to first key frame
Conversion, and include the step of the multipurpose watermarking to be embedded into the first key frame corresponding low frequency part after conversion：
First key frame is divided into multiple images block in spatial domain, DWT conversion is carried out to each image block respectively, and
The multipurpose watermarking is embedded into the corresponding low frequency part of each image block after conversion.
5. the method for file copy right is protected as claimed in claim 3, it is characterised in that obtain also wrapping after the second key frame
Include：
DWT inverse transformations are carried out to second key frame, obtain being embedded in the 3rd key frame of the multipurpose watermarking.
6. the method for file copy right is protected as claimed in claim 5, it is characterised in that described to utilize preset DCT algorithms
The step of fragile watermarking is embedded into the file includes：
Dct transform is carried out to the 3rd key frame, and the fragile watermarking is embedded into the 3rd key frame pair after conversion
The HFS answered, obtains the 4th key frame.
7. the method for file copy right is protected as claimed in claim 6, it is characterised in that obtain also wrapping after the 4th key frame
Include:
DCT inverse transformations are carried out to the 4th key frame, obtain and meanwhile the embedded multipurpose watermarking and fragile watermarking the
Five key frames, and the video comprising the 5th key frame is preserved to the Resource Server, so that user downloads or checks.
8. the method for the protection file copy right as described in claim 1 to 7 any one, it is characterised in that when the file is
It is described that the multipurpose watermarking is embedded in the file using preset DWT algorithms during picture, and calculated using preset DCT
The step of fragile watermarking is embedded in the file by method includes：
DWT conversion is carried out to the picture, and the multipurpose watermarking is embedded into the corresponding low frequency part of picture after conversion,
Obtain the first picture；
DWT inverse transformations are carried out to first picture, obtain being embedded in the second picture of the multipurpose watermarking；
To the second picture carry out dct transform, and by the fragile watermarking be embedded into conversion after second picture it is corresponding
HFS, obtains the 3rd picture；
DCT inverse transformations are carried out to the 3rd picture, the 4th of the simultaneously embedded multipurpose watermarking and fragile watermarking is obtained
Picture, and the 4th picture is preserved to the Resource Server, so that user downloads or checks.
9. a kind of system for protecting file copy right, it is characterised in that the system of the protection file copy right includes：Memory, place
The program of reason device and the protection file copy right that is stored on the memory and can run on the processor, the protection text
The program of part copyright by during the computing device realize as any one of claim 1 to 8 protect file copy right
Each corresponding step of method.
10. a kind of storage medium, it is characterised in that the program for the protection file copy right that is stored with the storage medium, the guarantor
The program of shield file copy right realizes the protection file copy right as any one of claim 1 to 8 when being executed by processor
Each corresponding step of method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710365734.3A CN107256346B (en) | 2017-05-22 | 2017-05-22 | Method, system and storage medium for protecting file copyright |
Applications Claiming Priority (1)
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