CN103605928B - A kind of image method for secret protection and system - Google Patents
A kind of image method for secret protection and system Download PDFInfo
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- CN103605928B CN103605928B CN201310577037.6A CN201310577037A CN103605928B CN 103605928 B CN103605928 B CN 103605928B CN 201310577037 A CN201310577037 A CN 201310577037A CN 103605928 B CN103605928 B CN 103605928B
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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
- G06F21/60—Protecting data
- G06F21/62—Protecting access to data via a platform, e.g. using keys or access control rules
- G06F21/6209—Protecting access to data via a platform, e.g. using keys or access control rules to a single file or object, e.g. in a secure envelope, encrypted and accessed using a key, or with access control rules appended to the object itself
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2221/00—Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F2221/21—Indexing scheme relating to G06F21/00 and subgroups addressing additional information or applications relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F2221/2125—Just-in-time application of countermeasures, e.g., on-the-fly decryption, just-in-time obfuscation or de-obfuscation
Abstract
The present invention proposes a kind of image method for secret protection and system, the method comprises the steps: the privacy area defining source images; Demarcate the privacy area of source images; Fuzzy processing is carried out to the privacy area of source images, obtains the public image of source images; Deduct the privacy area through Fuzzy processing with the privacy area of source images, obtain the difference privacy image of source images; The difference privacy image of source images is encrypted, obtains the difference privacy image after encrypting; Undelegated user obtain source images public image and encryption after difference privacy image after, check the content of the public image of source images.The method can realize the non-privacy content that undelegated user can view image.
Description
Technical field
The invention belongs to computer realm, particularly a kind of image method for secret protection and system.
Background technology
In recent years, receive the welcome of people based on the picture-storage of cloud and shared system, the photo upload of oneself taking stores to cloud space by user, and is shared with good friend.These application on the one hand facilitate user, also there is very large hidden danger on the one hand, comprise a lot of privacy information in photo, as who where, together with whom, do what etc.These privacy informations once reveal to malicious user, then the spirit of comparison film owner, property, even personal safety may bring great threat.
At present, be: entire image is encrypted that the people having key can image browsing content, does not have the people of key to can't see picture material completely to the method uploading the picture shared and carry out secret protection.
If utilize current method to operate; although achieve the protection to privacy; but owing to being encrypted entire image; so the storage space added needed for image and transmission bandwidth; being encrypted entire image in addition also to cause unauthorized user to check non-Private Parts less than image, thus have impact on the transmission of information.
Summary of the invention
For prior art Problems existing and deficiency, the invention provides a kind of image method for secret protection and system, make undelegated user can view the non-privacy content of image.
For realizing above object, the present invention is achieved by the following technical programs:
A kind of image method for secret protection, the method comprises the steps:
The privacy area of definition source images;
Demarcate the privacy area of source images;
Fuzzy processing is carried out to the privacy area of source images, obtains the public image of source images;
Deduct the privacy area through Fuzzy processing with the privacy area of source images, obtain the difference privacy image of source images;
The difference privacy image of source images is encrypted, obtains the difference privacy image after encrypting;
Undelegated user obtain source images public image and encryption after difference privacy image after, check the content of the public image of source images.
Preferably, the method comprises further: after the user of mandate obtains the difference privacy image after the public image of source images and encryption, difference privacy image after encryption is decrypted, by the difference privacy image addition after the public image of source images and deciphering, Restorer varieties image, checks all the elements of source images.
Preferably, the privacy area of described definition source images is:
Define the one or more concrete entity in source images and/or the class in source images or multiclass entity as privacy area.
Preferably, described one or more concrete entity is the name of someone's face and/or someone; A described class or multiclass entity are all faces and/or all words.
Preferably, the privacy area of described demarcation source images is:
According to the privacy area of definition, utilize corresponding image recognition technology, automatic Calibration goes out privacy area, or according to the privacy area defined, manually calibrates privacy area
A kind of image intimacy protection system, this system comprises:
Privacy definition module, for defining the privacy area of source images, sends to privacy demarcating module by the privacy area of the source images defined;
Privacy demarcating module, for demarcating the privacy area of source images, sends to privacy cancellation module by the privacy area of the source images demarcated;
Privacy cancellation module, for carrying out Fuzzy processing to the privacy area of source images, obtains the public image of source images, and sends to unauthorized user module and authorized user module;
Privacy retains module, for deducting the privacy area of Fuzzy processing with the privacy area of source images, obtains the difference privacy image of source images, the difference privacy image of source images is sent to privacy encrypting module;
Privacy encrypting module, for being encrypted the difference privacy image of source images, obtaining the difference privacy image after encrypting, and sending to unauthorized user module and authorized user module;
Unauthorized user module, for receiving the public image of source images and the difference privacy image after encrypting, unauthorized user checks the content of the public image of source images.
Preferably, this system comprises further:
Authorized user module, for receiving the public image of source images and the difference privacy image after encrypting, authorized user is decrypted the difference privacy image after encryption, by the difference privacy image addition after the public image of source images and deciphering, Restorer varieties image, checks all the elements of source images.
Preferably, described privacy definition module, for defining the one or more concrete entity in source images and/or the class in source images or multiclass entity as privacy area.
Preferably, described one or more concrete entity is the name of someone's face and/or someone; A described class or multiclass entity are all faces and/or all words.
Preferably, described privacy demarcating module, for the privacy area according to definition, utilizes corresponding image recognition technology, automatically detects privacy area, or according to the privacy area defined, manually detects privacy area.
The present invention at least has following beneficial effect:
1, in the present invention, source images is divided into public image and privacy image, only privacy image is encrypted, relative in the past to the situation of entire image encryption, save storage space and transmission bandwidth.In addition, undelegated user can see the non-privacy content of image, can't see the situation of picture material completely, have greater flexibility relative to undelegated user in the past.
2, in the present invention, authorized user utilizes the key known, is decrypted the difference privacy image after encryption, and by the difference privacy image addition after the public image of source images and deciphering, Restorer varieties image, can view all the elements of source images.
3, in the present invention, the one or more concrete entity in source images and/or the class in source images or multiclass entity can be defined as privacy area, meet the privacy requirements of user individual, also content-defined for loaded down with trivial details privacy process be simplified.
4, in the present invention, according to the privacy area of definition, utilize corresponding image recognition technology to detect privacy area, greatly accelerate processing procedure, alleviate the hand labour of user;
Certainly, either method of the present invention is implemented or product not necessarily needs to reach above-described all advantages simultaneously.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the process flow diagram of image secret protection in the embodiment of the present invention 1;
Fig. 2 is the process flow diagram of image secret protection in the embodiment of the present invention 2;
Fig. 3 is the structural representation of image intimacy protection system in the embodiment of the present invention 3.
Embodiment
For making the object of the embodiment of the present invention, technical scheme and advantage clearly; below in conjunction with the accompanying drawing in the embodiment of the present invention; technical scheme in the embodiment of the present invention is clearly and completely described; obviously; described embodiment is the present invention's part embodiment, instead of whole embodiments, based on the embodiment in the present invention; the every other embodiment that those of ordinary skill in the art obtain under the prerequisite not making creative work, all belongs to the scope of protection of the invention.
Embodiment 1:
The embodiment of the present invention proposes a kind of image method for secret protection, and as shown in Figure 1, the method comprises the steps:
Step 101: the privacy area of definition source images.
Step 102: the privacy area demarcating source images.
Step 103: Fuzzy processing is carried out to the privacy area of source images, obtains the public image of source images.
Step 104: deduct the privacy area through Fuzzy processing with the privacy area of source images, obtains the difference privacy image of source images.
Step 105: be encrypted the difference privacy image of source images, obtains the difference privacy image after encrypting.
Step 106: undelegated user obtain source images public image and encryption after difference privacy image after, check the content of the public image of source images.
Visible, in embodiments of the present invention, source images is divided into public image and privacy image, only privacy image is encrypted, relative in the past to the situation of entire image encryption, save storage space and transmission bandwidth.In addition, undelegated user can see the non-privacy content of image, can't see the situation of picture material completely, have greater flexibility relative to undelegated user in the past.
In other embodiments of the invention, the user authorized utilizes the key known, is decrypted the difference privacy image after encryption, by the difference privacy image addition after the public image of source images and deciphering, Restorer varieties image, can view all the elements of source images.
In other embodiments of the invention, the one or more concrete entity in source images and/or the class in source images or multiclass entity can be defined as privacy area, meet the privacy requirements of user individual, also content-defined for loaded down with trivial details privacy process is simplified.
In other embodiments of the invention, according to the privacy area of definition, utilize corresponding image recognition technology to detect privacy area, greatly accelerate processing procedure, alleviate the hand labour of user;
Embodiment 2:
Below by a concrete example, carry out the implementation procedure of an explanation preferred embodiment of the present invention specifically.See Fig. 2, comprise the steps:
Step 201: the privacy area of definition source images.
In this step, the source images owner can define the one or more concrete entity in source images and/or the class in source images or multiclass entity as privacy area.The name of the face and/or someone that such as define someone, as privacy area, also can define proprietary face and/or all words as privacy area, can also define the face of someone and all words as privacy area.
Step 202: according to the privacy area of definition, calibrate privacy area.
In this step, according to the privacy area of definition, utilize corresponding image recognition technology, automatic Calibration goes out privacy area, or according to the privacy area defined, manually calibrates privacy area.Such as, user defines face as privacy area, then utilize face recognition technology, and all people's face in detected image, is demarcated as privacy area by the image region detected.In this step, if the privacy area of definition, inconvenience uses automatic identification technology, then manually demarcate privacy area with rectangle frame by the source images owner.
Step 203: Fuzzy processing is carried out to the privacy area of source images, obtains the public image of source images.
In this step, according to each privacy area that step 202 is demarcated, in source images, Fuzzy processing is carried out to each privacy area, obtain the public image of source images.
Step 204: deduct the privacy area through Fuzzy processing with the privacy area of source images, obtains the difference privacy image of source images.
Step 205: be encrypted the difference privacy image of source images, obtains the difference privacy image after encrypting.
In this step, to the difference privacy image of the source images that step 204 obtains, utilize the possessory key of image to be encrypted, obtain the difference privacy image after encrypting.
Step 206: undelegated user obtain source images public image and encryption after difference privacy image after, check the content of the public image of source images.
In this step, undelegated user does not have clear crytpographic key, undelegated user obtain source images public image and encryption after difference privacy image after, the content of source images public image can only be checked, can't see the privacy content of source images.
Step 207: after the user of mandate obtains the difference privacy image after the public image of source images and encryption, difference privacy image after encryption is decrypted, by the difference privacy image addition after the public image of source images and deciphering, Restorer varieties image, checks all the elements of source images.
In this step, the user authorized has decruption key, after the difference privacy image of authorized user after the public image obtaining source images and encryption, decruption key is utilized to be decrypted the difference privacy image after encryption, difference privacy image after deciphering and public image are added, recover source images, thus all the elements of source images can be checked.
Embodiment 3:
The embodiment of the present invention proposes a kind of image intimacy protection system, and as shown in Figure 3, this system comprises:
Privacy definition module 301, for defining the privacy area of source images, sends to privacy demarcating module 302 by the privacy area of the source images defined;
Privacy demarcating module 302, for demarcating the privacy area of source images, sends to privacy cancellation module 303 by the privacy area of the source images demarcated;
Privacy cancellation module 303, for carrying out Fuzzy processing to the privacy area of source images, obtains the public image of source images, and sends to unauthorized user module 306 and authorized user module 307;
Privacy retains module 304, for deducting the privacy area of Fuzzy processing with the privacy area of source images, obtains the difference privacy image of source images, the difference privacy image of source images is sent to privacy encrypting module 305;
Privacy encrypting module 305, for being encrypted the difference privacy image of source images, obtaining the difference privacy image after encrypting, and sending to unauthorized user module 306 and authorized user module 307;
Unauthorized user module 306, for receiving the public image of source images and the difference privacy image after encrypting, unauthorized user checks the content of the public image of source images.
Authorized user module 307, for receiving the public image of source images and the difference privacy image after encrypting, authorized user is decrypted the difference privacy image after encryption, by the difference privacy image addition after the public image of source images and deciphering, Restorer varieties image, checks all the elements of source images.
Wherein, privacy definition module 301, for defining the one or more concrete entity in source images and/or the class in source images or multiclass entity as privacy area.
Wherein, described one or more concrete entity is the name of someone's face and/or someone; A described class or multiclass entity are all faces and/or all words.
Wherein, privacy demarcating module 302, for the privacy area according to definition, utilizes corresponding image recognition technology, automatically detects privacy area, or according to the privacy area defined, manually detects privacy area.
In order to save storage space and transmission bandwidth, privacy cancellation module 303 and privacy retain module 304 and source images are divided into public image and privacy image, then utilize privacy encrypting module 305 to be only encrypted privacy image.
In order to the non-privacy content making undelegated user can view image, unauthorized user module 306, receive source images public image and encryption after difference privacy image after, unauthorized user can check the content of the public image of source images.
In order to content-defined for loaded down with trivial details privacy process be simplified, privacy definition module 301 can define the one or more concrete entity in source images and/or the class in source images or multiclass entity as privacy area.
In order to alleviate the hand labour of user, the privacy area that privacy demarcating module 302 defines according to privacy definition module 301, utilizes corresponding image recognition technology automatic Calibration privacy area,
Above embodiment only for illustration of technical scheme of the present invention, is not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (8)
1. an image method for secret protection, is characterized in that, the method comprises the steps:
The privacy area of definition source images;
Demarcate the privacy area of source images;
Fuzzy processing is carried out to the privacy area of source images, obtains the public image of source images;
Deduct the privacy area through Fuzzy processing with the privacy area of source images, obtain the difference privacy image of source images;
The difference privacy image of source images is encrypted, obtains the difference privacy image after encrypting;
Undelegated user obtain source images public image and encryption after difference privacy image after, check the content of the public image of source images;
Wherein, the method comprises further: after the user of mandate obtains the difference privacy image after the public image of source images and encryption, difference privacy image after encryption is decrypted, by the difference privacy image addition after the public image of source images and deciphering, Restorer varieties image, checks all the elements of source images.
2. method according to claim 1, is characterized in that, the privacy area of described definition source images is:
Define the one or more concrete entity in source images and/or the class in source images or multiclass entity as privacy area.
3. method according to claim 2, is characterized in that,
Described one or more concrete entity is the name of someone's face and/or someone;
A described class or multiclass entity are all faces and/or all words.
4. method according to claim 1, is characterized in that, the privacy area of described demarcation source images is:
According to the privacy area of definition, utilize corresponding image recognition technology, automatic Calibration goes out privacy area, or according to the privacy area defined, manually calibrates privacy area.
5. an image intimacy protection system, is characterized in that, this system comprises:
Privacy definition module, for defining the privacy area of source images, sends to privacy demarcating module by the privacy area of the source images defined;
Privacy demarcating module, for demarcating the privacy area of source images, sends to privacy cancellation module by the privacy area of the source images demarcated;
Privacy cancellation module, for carrying out Fuzzy processing to the privacy area of source images, obtains the public image of source images, and sends to unauthorized user module and authorized user module;
Privacy retains module, for deducting the privacy area of Fuzzy processing with the privacy area of source images, obtains the difference privacy image of source images, the difference privacy image of source images is sent to privacy encrypting module;
Privacy encrypting module, for being encrypted the difference privacy image of source images, obtaining the difference privacy image after encrypting, and sending to unauthorized user module and authorized user module;
Unauthorized user module, for receiving the public image of source images and the difference privacy image after encrypting, unauthorized user checks the content of the public image of source images;
Wherein, this system comprises further:
Authorized user module, for receiving the public image of source images and the difference privacy image after encrypting, authorized user is decrypted the difference privacy image after encryption, by the difference privacy image addition after the public image of source images and deciphering, Restorer varieties image, checks all the elements of source images.
6. system according to claim 5, is characterized in that, described privacy definition module, for defining the one or more concrete entity in source images and/or the class in source images or multiclass entity as privacy area.
7. system according to claim 6, is characterized in that, described one or more concrete entity is the name of someone's face and/or someone;
A described class or multiclass entity are all faces and/or all words.
8. system according to claim 5, is characterized in that, described privacy demarcating module, for the privacy area according to definition, utilize corresponding image recognition technology, automatically detect privacy area, or according to the privacy area defined, manually detect privacy area.
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| CN201310577037.6A CN103605928B (en) | 2013-11-18 | 2013-11-18 | A kind of image method for secret protection and system |
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