CN104917989A - Hierarchical watermark adding method and system - Google Patents
Hierarchical watermark adding method and system Download PDFInfo
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- CN104917989A CN104917989A CN201410088843.1A CN201410088843A CN104917989A CN 104917989 A CN104917989 A CN 104917989A CN 201410088843 A CN201410088843 A CN 201410088843A CN 104917989 A CN104917989 A CN 104917989A
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Abstract
The invention belongs to the watermark technical field and discloses a hierarchical watermark adding method and system. The method includes the following steps that: watermarks of at least two levels are added into acquired original data, so that target data required by a user can be generated; and in a process in which the watermarks of at least two levels are added into the acquired original data, and after the addition of watermarks of each level in the watermarks of at least two levels is completed, the watermarks of each level are correlated to hierarchical data which are generated after the addition of the watermarks of each level is completed. Compared with the prior art, the hierarchical watermarks are added into the original data, so that the original data additionally have watermarks of several levels equivalently, and protection of the copyright of the original data can be better benefitted, and infringement and piracy can be prevented.
Description
Technical field
The present invention relates to digital watermark, the adding method of particularly classification watermark and system thereof.
Background technology
Along with the development of network technology and multimedia technology, the interchange of multimedia messages reaches unprecedented depth & wideth, people can by the works of the Internet-distributed oneself, transmit important information, carry out the web trade etc., but its side effect is also fairly obvious, and work infringement is more prone to, distort convenient.How namely to utilize the facility of internet, can effectively protect the intellectual property and realize again the transmission of confidential information, receive the great attention of people.Therefore, problem in the urgent need to address has been become to the copyright protection of content of multimedia.
Digital watermarking is the effective way realizing copyright protection; watermark is exactly can prove copyright ownership to needing to embed some in the multimedia messages of protection or follow the tracks of information tortious; it can be the sequence number of author, company standard, significant text and graph image etc.; watermark is generally invisible and can not examines; it and initial data (as image, audio frequency, video data) are combined closely and hide wherein; become the inseparable part of source data, and some operations not destroying source data use value or commercial value can be experienced and survive.
In prior art, if think that embed digital watermark is so that user can know correct time and the place of video record in video, a method is direct joining day information and coordinate information in video, but does like this and can affect viewing, and is unfavorable for effectively distinguishing user right; Another kind method embeds a weak signal visually can't see (watermark) under above-mentioned video, but if distorted by intentionally personage malice after watermarked, just again cannot know correct time and the place of above-mentioned video record.
Summary of the invention
The object of the present invention is to provide a kind of adding method and system thereof of classification watermark, by adding classification watermark to initial data, making initial data be equivalent to do multistage watermark, advantageously in the copyright protection to initial data, prevent infringement and piracy.
For solving the problems of the technologies described above, the invention provides a kind of adding method of classification watermark, comprising following steps:
At least two-stage watermark is added to the initial data collected, generates the target data that user needs;
Wherein, adding in the step of at least two-stage watermark in the described initial data to collecting, comprising following sub-step:
After every one-level watermark in the watermark of described at least two-stage has been added, the ranked data that rear generation has been added in described every one-level watermark and described every one-level watermark is associated.
Present invention also offers a kind of add-on system of classification watermark, comprise: acquisition module, add module and generation module;
Described acquisition module is for gathering initial data;
Described interpolation module is used for adding at least two-stage watermark to the initial data that described acquisition module collects;
Association submodule is comprised in described interpolation module, described association submodule is used for after the every one-level watermark in the watermark of described at least two-stage has been added by described interpolation module, the ranked data that rear generation has been added in described every one-level watermark and described every one-level watermark is associated;
The target data that described generation module needs for generating user, after the ranked data that described generation module has generated after described every one-level watermark has been added with described every one-level watermark by described association submodule associates, generates the target data that user needs.
Generally in initial data in prior art all only add one-level watermark, once this one-level watermark is by after intentionally personage's malice is distorted, initial data cannot be recovered, and can cause unnecessary loss to user.The present invention in terms of existing technologies, at least two-stage watermark is added in initial data, and the ranked data generated after this grade of watermark and this grade of watermark being added after every one-level watermark has been added associates, the i.e. corresponding one-level watermark of level one data, the corresponding two-level watermark of secondary data, the like, until generate the target data of user's needs, because the present invention with the addition of at least two-stage watermark to initial data, initial data is made to be the equal of done multi-stage signature, when intentionally personage wants malice to distort, the watermark that user adds initial data can be removed completely after watermark at different levels all must being distorted, add and distort difficulty, effectively prevent infringement and copy right piracy.
Preferably, described every one-level watermark has been added with described every one-level watermark after after the step that associates of the ranked data that generates, also comprise following steps:
By described ranked data at different levels respectively with the user-association of at least one rank;
Wherein, described user has the right to read the ranked data be associated with this user.
In the present invention, by ranked data at different levels respectively with the user-association of at least one rank after, the user that just can control different stage checks the data of different stage, convenient management different user being checked to authority.
Preferably, the user of the highest level in described user has the right to read described ranked data at different levels.
Such as keeper can see the data of all ranks, and the wherein one-level of associated in ranked data at different levels or a few DBMS just can only be seen by domestic consumer, and available protecting user checks authority.
Preferably, described initial data comprises one of following type or its combination in any:
Image, audio frequency, video.
The initial data related in the present invention can for common image, audio or video data, and the scope of application is relatively more extensive, easily popularizes.
Preferably, the packets of information in described watermark is containing one of following information or its combination in any:
The time of author's sequence number, company standard, text, figure, image, described raw data acquisition or place;
Information in described watermark not at the same level is different.
Information in the present invention in watermark can set arbitrarily according to consumer taste, is generally author's sequence number, company standard, text, figure, image, time of raw data acquisition or place.
Accompanying drawing explanation
Fig. 1 is the adding method flow chart according to the classification watermark in first embodiment of the invention;
Fig. 2 is the adding method flow chart according to the classification watermark in second embodiment of the invention;
Fig. 3 is the add-on system schematic diagram according to the classification watermark in third embodiment of the invention.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, the embodiments of the present invention are explained in detail.But, persons of ordinary skill in the art may appreciate that in each execution mode of the present invention, proposing many ins and outs to make reader understand the application better.But, even without these ins and outs with based on the many variations of following execution mode and amendment, each claim of the application technical scheme required for protection also can be realized.
First execution mode of the present invention relates to a kind of adding method of classification watermark.Comprise following steps:
At least two-stage watermark is added to the initial data collected, generates the target data that user needs;
Wherein, the initial data collected is being added in the step of at least two-stage watermark, is comprising following sub-step:
The ranked data that rear generation has been added in every one-level watermark and every one-level watermark associates after having added by the every one-level watermark at least two-stage watermark.
Idiographic flow as shown in Figure 1.
Step 101: gather initial data.
It is worth mentioning that, the initial data in present embodiment comprises one of following type or its combination in any: image, audio frequency, video.The initial data related in present embodiment can for common image, audio or video data, and the scope of application is relatively more extensive, easily popularizes.
Step 102: one-level watermark is added to initial data and generates level one data.
Preferably, the information in above-mentioned watermark can comprise one of following information or its combination in any:
The time of author's sequence number, company standard, text, figure, image, raw data acquisition or place; Information in watermark not at the same level is different.Information in the present embodiment in watermark can set arbitrarily according to consumer taste.
Step 103: two-level watermark is added to above-mentioned level one data and generates secondary data.
Then step 104: whether the ranked data judging above-mentioned generation is the target data that user needs.
If so, then the adding procedure of classification watermark terminates;
If not, then step 105 is entered.
Step 105: continue to add classification watermark, until generate the target data of user's needs.
So far, the process that whole classification watermark is added terminates.
Generally in initial data in prior art all only add one-level watermark, once this one-level watermark is by after intentionally personage's malice is distorted, initial data cannot be recovered, and can cause unnecessary loss to user.The present invention in terms of existing technologies, at least two-stage watermark is added in initial data, and the ranked data generated after this grade of watermark and this grade of watermark being added after every one-level watermark has been added associates, the i.e. corresponding one-level watermark of level one data, the corresponding two-level watermark of secondary data, the like, until generate the target data of user's needs, because the present invention with the addition of at least two-stage watermark to initial data, initial data is made to be the equal of done multi-stage signature, when intentionally personage wants malice to distort, the watermark that user adds initial data can be removed completely after watermark at different levels all must being distorted, add and distort difficulty, effectively prevent infringement and copy right piracy.
Second execution mode of the present invention relates to a kind of adding method of classification watermark.Second execution mode is the further improvement of the first execution mode, main improvements are: in second embodiment of the invention, after the step that the ranked data generated after every one-level watermark having been added with every one-level watermark associates, also comprise following steps: by ranked data at different levels respectively with the user-association of at least one rank, wherein, user has the right to read the ranked data be associated with this user.Idiographic flow as shown in Figure 2.
Step 201: gather initial data.
Step 202: one-level watermark is added to initial data and generates level one data.
Step 203: by the user-association of above-mentioned level one data and at least one rank.
Step 204: two-level watermark is added to above-mentioned level one data and generates secondary data.
Step 205: by the user-association of above-mentioned secondary data and at least one rank.
Then step 206: whether the ranked data judging above-mentioned generation is the target data that user needs.
If so, then the adding procedure of classification watermark terminates;
If not, then step 207 is entered.
Step 207: continue to add classification watermark, until generate the target data of user's needs.
Then step 208: by the user-association of above-mentioned target data and at least one rank.
So far, the process that whole classification watermark is added terminates.
Compared with the first execution mode in the present invention, present embodiment by ranked data at different levels respectively with the user-association of at least one rank after, the user that just can control different stage checks the data of different stage, convenient management different user being checked to authority.
In addition, it is worth mentioning that, the highest-level users in above-mentioned user at different levels has the right to read ranked data at different levels.Such as keeper can see the data of all ranks; and domestic consumer just can only see associated in ranked data at different levels wherein one-level or a few DBMS; alternatively; one-level user; original data content can only be seen; secondary user can see the level one data having added one-level watermark information, and the user of administrator right can see each DBMS that with the addition of watermark information at different levels, and available protecting user checks authority.Take initial data as image be example; in the process of IMAQ; real-time acquisition time information and positional information; in conjunction with digital watermark; watermark information is embedded in image in the mode hidden; when playback; acquiescence cannot displaying time and positional information; need to adopt specific instrument to carry out to authorize and revise; this technology can well meet the grading authorized system that image is issued; the authority of image owner can well being protected, also by controlling watermarking algorithm, can follow the tracks of and controlling situation about propagating simultaneously.
The relevant technical details mentioned in first execution mode is still effective in the present embodiment, in order to reduce repetition, repeats no more here.
The step of various method divides above, just in order to be described clearly, can merge into a step or splitting some step, being decomposed into multiple step, when realizing as long as comprise identical logical relation, all in the protection range of this patent.
Third embodiment of the invention relates to a kind of add-on system of classification watermark, comprises: acquisition module, adds module and generation module.Specifically, as shown in Figure 3.
Acquisition module, for gathering initial data, adds module and is used for adding at least two-stage watermark to the initial data that acquisition module collects; Add in module and comprise association submodule, association submodule is used for, adding after the every one-level watermark at least two-stage watermark added by module, the ranked data that rear generation has been added in every one-level watermark and every one-level watermark being associated; The target data that generation module needs for generating user, after the ranked data that generation module has generated after every one-level watermark has been added with every one-level watermark by association submodule associates, generates the target data that user needs.
It is worth mentioning that, the initial data in present embodiment comprises one of following type or its combination in any: image, audio frequency, video.The initial data related in present embodiment can for common image, audio or video data, and the scope of application is relatively more extensive, easily popularizes.
In addition, one of preferred following information of the information in above-mentioned watermark or its combination in any:
The time of author's sequence number, company standard, text, figure, image, raw data acquisition or place; Information in watermark not at the same level is different.Information in the present embodiment in watermark can set arbitrarily according to consumer taste.
Be not difficult to find, present embodiment is the system embodiment corresponding with the first execution mode, and present embodiment can be worked in coordination with the first execution mode and be implemented.The relevant technical details mentioned in first execution mode is still effective in the present embodiment, in order to reduce repetition, repeats no more here.Correspondingly, the relevant technical details mentioned in present embodiment also can be applicable in the first execution mode.
Four embodiment of the invention relates to a kind of add-on system of classification watermark.4th execution mode is the further improvement of the 3rd execution mode, main improvements are: in the 4th execution mode, after the ranked data of association submodule also for generating after every one-level watermark having been added with every one-level watermark associates, before generation module generates the target data that user needs, by ranked data at different levels respectively with the user-association of at least one rank.
Highest-level users in above-mentioned user at different levels has the right to read ranked data at different levels.Such as keeper can see the data of all ranks; and domestic consumer just can only see associated in ranked data at different levels wherein one-level or a few DBMS; alternatively; one-level user; original data content can only be seen; secondary user can see the level one data having added one-level watermark information, and the user of administrator right can see each DBMS that with the addition of watermark information at different levels, and available protecting user checks authority.This technology can well meet the grading authorized system that image is issued, and can well protect the authority of image owner, also by controlling watermarking algorithm, can follow the tracks of and control situation about propagating simultaneously.
The relevant technical details mentioned in 3rd execution mode is still effective in the present embodiment, in order to reduce repetition, repeats no more here.
Be not difficult to find, present embodiment is the system embodiment corresponding with the second execution mode, and present embodiment can be worked in coordination with the second execution mode and be implemented.The relevant technical details mentioned in second execution mode is still effective in the present embodiment, in order to reduce repetition, repeats no more here.Correspondingly, the relevant technical details mentioned in present embodiment also can be applicable in the second execution mode.
It is worth mentioning that, each module involved in the respective embodiments described above is logic module, and in actual applications, a logical block can be a physical location, also can be a part for a physical location, can also realize with the combination of multiple physical location.In addition, in order to outstanding innovative part of the present invention, the unit not too close with solving technical problem relation proposed by the invention is not introduced in present embodiment, but this does not show the unit that there is not other in present embodiment.
Persons of ordinary skill in the art may appreciate that the respective embodiments described above realize specific embodiments of the invention, and in actual applications, various change can be done to it in the form and details, and without departing from the spirit and scope of the present invention.
Claims (10)
1. an adding method for classification watermark, is characterized in that, comprises following steps:
At least two-stage watermark is added to the initial data collected, generates the target data that user needs;
Wherein, adding in the step of at least two-stage watermark in the described initial data to collecting, comprising following sub-step:
After every one-level watermark in the watermark of described at least two-stage has been added, the ranked data that rear generation has been added in described every one-level watermark and described every one-level watermark is associated.
2. the adding method of classification watermark according to claim 1, is characterized in that, described every one-level watermark has been added with described every one-level watermark after after the step that associates of the ranked data that generates, also comprise following steps:
By described ranked data at different levels respectively with the user-association of at least one rank;
Wherein, described user has the right to read the ranked data be associated with this user.
3. the adding method of classification watermark according to claim 2, is characterized in that, the user of the highest level in described user has the right to read described ranked data at different levels.
4. the adding method of classification watermark according to claim 1, is characterized in that, described initial data comprises one of following type or its combination in any:
Image, audio frequency, video.
5. the adding method of classification watermark according to claim 1, is characterized in that, the packets of information in described watermark is containing one of following information or its combination in any:
The time of author's sequence number, company standard, text, figure, image, described raw data acquisition or place;
Information in described watermark not at the same level is different.
6. an add-on system for classification watermark, is characterized in that, comprises: acquisition module, adds module and generation module;
Described acquisition module is for gathering initial data;
Described interpolation module is used for adding at least two-stage watermark to the initial data that described acquisition module collects;
Wherein, association submodule is comprised in described interpolation module, described association submodule is used for after the every one-level watermark in the watermark of described at least two-stage has been added by described interpolation module, the ranked data that rear generation has been added in described every one-level watermark and described every one-level watermark is associated;
The target data that described generation module needs for generating user, after the ranked data that described generation module has generated after described every one-level watermark has been added with described every one-level watermark by described association submodule associates, generates the target data that user needs.
7. the add-on system of classification watermark according to claim 6, it is characterized in that, after the ranked data of described association submodule also for generating after described every one-level watermark having been added with described every one-level watermark associates, by described ranked data at different levels respectively with the user-association of at least one rank;
Wherein, described user has the right to read the ranked data be associated with this user.
8. the add-on system of classification watermark according to claim 7, is characterized in that, the user of the highest level in described user has the right to read described ranked data at different levels.
9. the add-on system of classification watermark according to claim 6, is characterized in that, described initial data comprises one of following type or its combination in any:
Image, audio frequency, video.
10. the add-on system of classification watermark according to claim 6, is characterized in that, the packets of information in described watermark is containing one of following information or its combination in any:
The time of author's sequence number, company standard, text, figure, image, described raw data acquisition or place;
Information in described watermark not at the same level is different.
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