CN109767375A - The method and system of image watermark insertion and retrospect - Google Patents
The method and system of image watermark insertion and retrospect Download PDFInfo
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Abstract
The present invention provides a kind of method and system of image watermark insertion and retrospect, wherein this method comprises: extracting the pixel in image to be processed by default extraction strategy, the pixel based on extraction generates image watermark drawing point；It is encrypted based on attribute information of the Encryption Algorithm to the image to be processed comprising Copyright Information, generates encryption information, the encryption information is converted into binary sequence information；Based on gray scale algorithm and graphical device interface GDI and the binary sequence information, described image watermark drawing point processed is redrawn, described image watermark is obtained.The embodiment of the present invention encrypts watermark content using Encryption Algorithm, adjusts watermark color and transparency, not only watermark content was prevented to be tampered, but also reduces influence of the watermark to picture and block.
Description
Technical field
The present invention relates to field of information security technology, a kind of method for being embedded in and tracing in particular to image watermark
And system.
Background technique
With the rapid development of internet and multimedia technology, digital picture most important one as multimedia messages
Point, copyright has been concerned about by more and more people.Nowadays text or label are added in enterprise, personal mainly pass through in the picture
Chapter protects its equity in a manner of image watermark, but the watermark mode of most of image is too simple, image itself or watermark
Content is easy to be tampered or replicate, and on the internet so as to cause the image exposure much without copyright owner's license, but writes
The legitimate rights and interests for making power people are unable to get due protection.Existing Image Watermarking Technique simultaneously, such as text watermark easily block
Image content influences to read, and destroys the initial quality of image.
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of method and system of image watermark insertion and retrospect, to subtract
It is few and to lead to image itself or the problem of watermark content is easily tampered or replicates because the mode of addition image watermark is simple,
And adjustment watermark transparency, reduce the problem of image content is blocked in watermark.
In a first aspect, the embodiment of the invention provides the methods of image watermark insertion, comprising:
By the default pixel extracted in strategy extraction image to be processed, the pixel based on extraction generates image watermark and draws
Figure point；
It is encrypted based on attribute information of the Encryption Algorithm to the image to be processed comprising Copyright Information, generates encryption letter
Breath, is converted to binary sequence information for the encryption information；
Based on gray scale algorithm and graphical device interface GDI and the binary sequence information, described image water processed is redrawn
Drawing point is printed, described image watermark is obtained.
With reference to first aspect, the embodiment of the invention provides the first possible embodiments of first aspect, wherein institute
Stating Encryption Algorithm includes symmetric encipherment algorithm and rivest, shamir, adelman.
With reference to first aspect, the embodiment of the invention provides second of possible embodiments of first aspect, wherein institute
It states encrypt based on attribute information of the Encryption Algorithm to the image to be processed comprising Copyright Information and includes:
Globally unique identifier GUID is generated based on CoCreateGuid function, obtains the close of the symmetric encipherment algorithm
Key；
Based on the Encryption Algorithm, the attribute using the image to be processed for described in the key pair including Copyright Information is believed
Breath is encrypted.
With reference to first aspect, the embodiment of the invention provides the third possible embodiments of first aspect, wherein institute
It states based on gray scale algorithm and graphical device interface GDI and the binary sequence information, redraws described image watermark processed and draw
It puts and includes:
The first pixel in described image watermark drawing point is extracted, first pixel is obtained based on gray scale algorithm
First color value；
The transparency that first color value is adjusted based on GDI obtains the second color value of first pixel；
According to the corresponding rule of the binary sequence information, it is determined whether draw described on first pixel
Second colors value.
The third possible embodiment with reference to first aspect, the embodiment of the invention provides the 4th kind of first aspect
Possible embodiment, wherein first color value for obtaining first pixel based on gray scale algorithm includes:
In the picture, the color value that a pixel is preset around centered on first pixel is obtained；
The color value of the default pixel is input in gray scale algorithm, average color is generated, obtains described the
One color value.
Second aspect, the embodiment of the invention provides a kind of methods of image watermark retrospect, wherein includes:
Pixel all in image is traversed, image watermark drawing point is obtained based on gray scale algorithm；
The binary sequence information for extracting described image watermark drawing point, is converted to encryption for the binary sequence information
Information；
The encryption information is decrypted based on decipherment algorithm, generate solution confidential information, the decryption information include comprising
The attribute information of the image to be processed of Copyright Information.
In conjunction with second aspect, the embodiment of the invention provides the first possible embodiments of second aspect, wherein institute
It states and determines that image watermark drawing point includes: based on gray scale algorithm
The color value of the pixel in described image is extracted based on gray scale algorithm；
The color value of the color value of the pixel of extraction and the described image watermark drawing point of record is matched, matching at
Function, the pixel extracted are described image watermark drawing point.
The third aspect, the embodiment of the invention provides a kind of systems of image watermark insertion, wherein includes:
Image watermark module is generated, for pressing the tactful pixel extracted in image to be processed of default extraction, is based on extracting
Pixel generate image watermark drawing point；
Encrypting module, for being added based on attribute information of the Encryption Algorithm to the image to be processed comprising Copyright Information
It is close, encryption information is generated, the encryption information is converted into binary sequence information；
Embedded images watermark module, for based on gray scale algorithm and graphical device interface GDI and the binary sequence
Information redraws described image watermark drawing point processed, obtains described image watermark.
In conjunction with the third aspect, the embodiment of the invention provides the first possible embodiments of the third aspect, wherein institute
Stating encrypting module includes:
Key generating unit obtains described for generating globally unique identifier GUID based on CoCreateGuid function
The key of symmetric encipherment algorithm；
Encryption unit, for be based on the Encryption Algorithm, using described in the key pair include Copyright Information wait locate
The attribute information of reason image is encrypted.
Fourth aspect, the embodiment of the invention provides a kind of systems of image watermark retrospect, wherein includes:
Determining module obtains image watermark drawing point based on gray scale algorithm for traversing pixel all in image；
Extraction module, for extracting the binary sequence information of described image watermark drawing point, by the binary sequence
Information is converted to encryption information；
Deciphering module generates solution confidential information, the decryption for the encryption information to be decrypted based on decipherment algorithm
Information includes the attribute information of the image to be processed comprising Copyright Information.
The method and system of image watermark provided in an embodiment of the present invention insertion and retrospect, using Encryption Algorithm to obtaining in advance
The basic confidence of Copyright Information, image taken is encrypted, and encryption information is plotted in image watermark drawing point, with the prior art
In text is added in the picture or the watermark mode of stamped signature is compared, effectively prevent traditional images software for editing to distort it,
And by adjusting watermark pixel transparency, watermark is effectively prevent to block picture
To enable the above objects, features and advantages of the present invention to be clearer and more comprehensible, preferred embodiment is cited below particularly, and cooperate
Appended attached drawing, is described in detail below.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 shows the flow chart of Image Watermarking provided by the embodiment of the present invention；
Fig. 2 shows provided by the embodiment of the present invention based on Encryption Algorithm to the image to be processed comprising Copyright Information
The flow chart that is encrypted of attribute information；
Fig. 3 is shown provided by the embodiment of the present invention based on gray scale algorithm and graphical device interface GDI and binary system
Matrix information redraws the flow chart of imaged watermark drawing point；
Fig. 4 shows the flow chart that the first color value is obtained provided by the embodiment of the present invention；
Fig. 5 shows the flow chart of image watermark retroactive method provided by the embodiment of the present invention；
Fig. 6 shows the flow chart for determining image watermark drawing point provided by the embodiment of the present invention based on gray scale algorithm；
Fig. 7 shows the structural schematic diagram of image watermark embedded system provided by the embodiment of the present invention；
Fig. 8 shows the structural schematic diagram of image watermark traceability system provided by the embodiment of the present invention.
Main element symbol description: 1- generates image watermark module；2- encrypting module；3- embedded images watermark module；4-
Determining module；5- extraction module；6- deciphering module.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
Middle attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only
It is a part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is real
The component for applying example can be arranged and be designed with a variety of different configurations.Therefore, of the invention to what is provided in the accompanying drawings below
The detailed description of embodiment is not intended to limit the range of claimed invention, but is merely representative of selected reality of the invention
Apply example.Based on the embodiment of the present invention, those skilled in the art institute obtained without making creative work
There are other embodiments, shall fall within the protection scope of the present invention.
In view of the watermark mode of text or stamped signature is added in the picture in the prior art, because of the watermark of most of image
Mode is too simple, and image itself or watermark content are easy to be tampered or be replicated, and watermark is easy to block in picture
Hold, influence to read, destroy the initial quality of image, be based on this, the embodiment of the invention provides a kind of insertion of image watermark and
The method and system of retrospect, are described below by embodiment.
The embodiment of the invention provides a kind of methods of image watermark insertion, as shown in Figure 1, specifically including following steps
S101~S103:
S101, by the default pixel extracted in strategy extraction image to be processed, the pixel based on extraction generates image
Watermark drawing point.
Provide the image upper left corner to be processed pixel be first pixel, with from left to right, from it is upper and under sequence
The pixel in entire image to be processed is traversed, extracts the pixel in image, the pixel based on extraction every 50 pixels
Point generates image watermark drawing point, and records the color value and coordinate information of the pixel.
Before implementation steps S101, the image data of all pixels point in image, image are obtained using the library WINDOWS GDI
Data include the color value and coordinate information of pixel.The image of real world is generally by the power and frequency of every bit light on image
Spectrum is to indicate, must be many zonules by picture breakdown, these zonules are known as picture when converting image information into data information
Element often uses color image Red Green Blue representation in components.
The main task of GDI (graphical device interface, Graphics Device Interface) is responsible for system and draws
Information exchange between program handles the images outputting of all Windows programs.It is most under Windows operating system
The application program for having graphical interfaces all be unable to do without GDI, we are being shielded using what numerous functions provided by GDI can be convenient
The operation such as output pattern, text on curtain, printer and other output equipments, the appearance of GDI make programmer without being concerned about that hardware is set
Standby and device drives, so that it may convert the output on hardware device for the output of application program, realize program developer with
The isolation of hardware device, greatly facilitates development.
S102 is encrypted based on attribute information of the Encryption Algorithm to the image to be processed comprising Copyright Information, is generated
Encryption information is converted to binary sequence information by encryption information.
The Encryption Algorithm includes symmetric encipherment algorithm and rivest, shamir, adelman.Optionally, as shown in Fig. 2, step
Following steps S201~S202 is specifically included in S102:
S201 generates globally unique identifier GUID based on CoCreateGuid function, obtains the close of symmetric encipherment algorithm
Key.
Global uniqueness mark identifier GUID, also referred to as UUID.GUID be it is a kind of by algorithm generate binary length be
128 numeric identifiers, GUID is mainly used in the network or system for possessing multiple nodes, multiple stage computers, in ideal
In the case of, any computer and computer cluster will not all generate two identical GUID, therefore use GUID for symmetric cryptography
Its encryption can be improved in the key of algorithm, prevents from being cracked by other people.
S202 is based on Encryption Algorithm, is carried out using the attribute information that key pair includes the image to be processed of Copyright Information
Encryption.
In a symmetric encryption algorithm, using the attribute information of the image to be processed comprising Copyright Information as plaintext and encryption
Key GUID after the processing of special Encryption Algorithm, generates encryption information together.Wherein, Copyright Information include author's name,
Identification card number, can also using include photographing data, shooting places and image dimension information image essential information as plaintext into
Row encryption, in addition to this, the image watermark encrypted content is customizable, independently selects encrypted content by user.It is adopted in the present embodiment
With common symmetric encipherment algorithm, specially DES (Data Encryption Standard, data encryption standards), 3DES
(Triple DES, triple data encryption algorithm), AES (Advanced Encryption Standard, Advanced Encryption Standard)
Deng.
The encryption information of generation is adopted as hexadecimal format, and hexadecimal encryption information is converted to binary sequence letter
Breath, as an alternative embodiment, binary sequence information can be binary matrix information.1 hexadecimal number is 4 two corresponding
System number can be converted to the binary matrix information of n × 4 for one n hexadecimal.
S103 is redrawn imaged watermark and is drawn based on gray scale algorithm and graphical device interface GDI and binary sequence information
Figure point, obtains image watermark.
Optionally, as shown in figure 3, specifically including following steps S301~S303 in step S103:
S301 extracts the first pixel in image watermark drawing point, obtains the of the first pixel based on gray scale algorithm
One color value.
Optionally, as shown in figure 4, specifically including following steps S401~S402 in step S301:
S401 obtains the color value that a pixel is preset around centered on the first pixel in the picture.
The color value of default pixel is input in gray scale algorithm, generates average color, obtain the first face by S402
Color value.
A specific embodiment is lifted, centered on the first pixel, extracts the face of eight pixels around the first pixel
Color value, and eight color values are input in gray scale algorithm and obtain corresponding eight gray values, then calculate eight gray values
Average color, the average color of generation are the first color value of the first pixel.The image watermark can adaptive color,
Reduce influence of the watermark to image itself.
S302 is adjusted the transparency of the first color value based on GDI, obtains the second color value of the first pixel.
In order not to allowing watermark shielded image content, influence to read, which can adjust the transparency of watermark pixel,
It effectively prevent watermark to block picture, generally takes 30% transparency, the calculation formula (1) of the second color value is as follows:
Second color value=average color × 30% (1)
S303, according to the corresponding rule of binary sequence information, it is determined whether draw the second color on the first pixel
Value.
In the embodiment of the present application, according to position of first pixel in image watermark drawing point, binary matrix is obtained
In information, corresponding binary value at the position, according to corresponding binary value at the position, it is determined whether in the first pixel
The second color value of upper drafting.For example, being extracted if position of first pixel in image watermark drawing point is the 5th row the 6th column
In binary matrix information, the corresponding binary value of the 30th (5 × 6) a character, if the binary system is 1, in first pixel
The second color value is drawn on point, covers the original color value of the first pixel；If the binary value is 0, in first picture
Without drawing on vegetarian refreshments, retain the original color value of the first pixel.
In the embodiment of the present application, as an alternative embodiment, for binary matrix information, in image watermark drawing point
Each pixel corresponds to 1 in binary matrix information, if it is 0 that the pixel, which corresponds to the value in binary matrix information,
Not in second color value of pixel point-rendering, if it is 1 that the pixel, which corresponds to the value in binary matrix information, in the pixel
Draw the second color value.In the embodiment of the present application, according to from left to right, from it is upper and under sequence, by binary matrix information
Each binary system is corresponding with the pixel in image watermark drawing point.For example, binary matrix information is one 10 × 4
Matrix, image watermark drawing point are one 5 × 9 matrix, then the second row first row correspondence image water in binary matrix information
The first row the 5th printed in drawing point arranges, and so on.
In the embodiment of the present application, as an alternative embodiment, if the pixel number that image watermark drawing point includes be greater than or
Equal to the number of bits in binary sequence information, show encryption information can completely in the form of image watermark drawing point into
Row characterization；If the pixel number that image watermark drawing point includes is less than the number of bits in binary sequence information, show to add
Confidential information can only be characterized partially in the form of image watermark drawing point, thus, in subsequent trace to the source, it is impossible to restore completely
The attribute information of image, thus, according to the corresponding rule of binary matrix information, it is determined whether is drawn on the first pixel
Second colors value, comprising:
The binary digit in pixel number and binary sequence information for including in statistical picture watermark drawing point respectively
Number；
If pixel number is not less than number of bits, according to position of first pixel in image watermark drawing point, obtain
Corresponding binary value at the position is taken in binary matrix information, according to corresponding binary value at the position, it is determined whether
The second color value is drawn on the first pixel；
If the pixel number that image watermark drawing point includes is less than the number of bits in binary sequence information, figure is returned
As watermark is embedded in failure information.
The embodiment of the invention provides a kind of methods of image watermark retrospect, as shown in figure 5, specifically including following steps
S501~S503:
S501 traverses pixel all in image, determines image watermark drawing point based on gray scale algorithm.
Optionally, as shown in fig. 6, specifically including following steps S601~S602 in step S501:
S601 extracts the color value of the pixel in image based on gray scale algorithm.
S602 matches the color value of the color value of the pixel of extraction and the image watermark drawing point of record, matching
Success, the pixel extracted are described image watermark drawing point.
The second color value is not drawn based on 0, and 1 draws the rule of the second color value, then the image watermark drawing point obtained
Pixel is 1, and obtained image watermark drawing point extracts strategy according to default, obtains the image watermark that pixel is 0
Drawing point.
S502 extracts the binary sequence information of image watermark drawing point, and binary sequence information is converted to encryption letter
Breath.
By the image watermark drawing point in image with from left to right, from it is upper and under sequence arrangement, obtain binary sequence
Information, corresponding 1 16 system of 4 binary systems can be converted to the 16 of one n for the binary sequence information of n × 4
System.S503 is decrypted encryption information based on decipherment algorithm, generates solution confidential information, decryption information includes comprising copyright
The attribute information of the image to be processed of information.
Using symmetrical decipherment algorithm corresponding with symmetric encipherment algorithm, conciliate hexadecimal encryption information as ciphertext
Key GUID passes through special decipherment algorithm together, generates solution confidential information, and decryption information includes comprising Copyright Information wait locate
Manage the attribute information of image, wherein Copyright Information includes author's name, identification card number, and in addition to this, solution confidential information can be with
It is customized other content.Therefore the image watermark can uniquely recall, and watermark can be effectively prevent to be replicated abuse.
The embodiment of the invention provides a kind of systems of image watermark insertion, as shown in fig. 7, the system includes: generation figure
As watermark module 1, for extracting the tactful pixel extracted in image to be processed by default, the pixel based on extraction generates figure
As watermark drawing point；Encrypting module 2, for the attribute information based on Encryption Algorithm to the image to be processed comprising Copyright Information
It is encrypted, generates encryption information, encryption information is converted into binary sequence information；Embedded images watermark module 3 is used for base
In gray scale algorithm and graphical device interface GDI and binary sequence information, it is plotted in image watermark drawing point again, obtains image
Watermark.
Wherein, Encryption Algorithm includes symmetric encipherment algorithm and rivest, shamir, adelman, and encrypting module 2 includes: that key generates
Unit obtains the key of symmetric encipherment algorithm for generating globally unique identifier GUID based on CoCreateGuid function；Add
Close unit is added for being based on Encryption Algorithm using the attribute information that key pair includes the image to be processed of Copyright Information
It is close.
The embodiment of the invention provides a kind of systems of image watermark retrospect, as shown in figure 8, the system comprises determining that mould
Block 4 determines image watermark drawing point based on gray scale algorithm for traversing pixel all in image；Extraction module 5, is used for
The binary sequence information for extracting image watermark drawing point, is converted to encryption information for binary sequence information；Deciphering module 6,
For encryption information to be decrypted based on decipherment algorithm, solution confidential information is generated, decryption information includes comprising Copyright Information
The attribute information of image to be processed.
Based on above-mentioned analysis it is found that and enterprise or user pass through addition text or stamped signature in the picture in the prior art
Water mark method compare, the method for image watermark provided in an embodiment of the present invention insertion is using Encryption Algorithm to the copyright of acquisition
Information, image essential information are encrypted, and the encryption information of generation is plotted on image watermark graphical pointv, and image watermark is drawn
Point can adaptive color and adjustment transparency, effectively prevent traditional images software for editing to distort it, can also reduce watermark itself
It influence to picture and blocks.
The computer program that the method and system of image watermark insertion and retrospect are carried out provided by the embodiment of the present invention produces
Product, the computer readable storage medium including storing program code, before the instruction that said program code includes can be used for execution
Method described in the embodiment of the method for face, specific implementation can be found in embodiment of the method, and details are not described herein.
The method and system of the insertion of image watermark provided by the embodiment of the present invention and retrospect can be specific in equipment
Hardware or the software being installed in equipment or firmware etc..Device provided by the embodiment of the present invention, realization principle and generation
Technical effect it is identical with preceding method embodiment, for briefly describe, Installation practice part do not refer to place, can refer to aforementioned
Corresponding contents in embodiment of the method.It is apparent to those skilled in the art that for convenience and simplicity of description, it is preceding
The system of description, the specific work process of device and unit are stated, the corresponding process during reference can be made to the above method embodiment,
This is repeated no more.
In embodiment provided by the present invention, it should be understood that disclosed device and method, it can be by others side
Formula is realized.The apparatus embodiments described above are merely exemplary, for example, the division of the unit, only one kind are patrolled
Function division is collected, there may be another division manner in actual implementation, in another example, multiple units or components can combine or can
To be integrated into another system, or some features can be ignored or not executed.Another point, shown or discussed is mutual
Coupling, direct-coupling or communication connection can be INDIRECT COUPLING or communication link by some communication interfaces, device or unit
It connects, can be electrical property, mechanical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme
's.
In addition, each functional unit in embodiment provided by the invention can integrate in one processing unit, it can also
To be that each unit physically exists alone, can also be integrated in one unit with two or more units.
It, can be with if the function is realized in the form of SFU software functional unit and when sold or used as an independent product
It is stored in a computer readable storage medium.Based on this understanding, technical solution of the present invention is substantially in other words
The part of the part that contributes to existing technology or the technical solution can be embodied in the form of software products, the meter
Calculation machine software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be a
People's computer, server or network equipment etc.) it performs all or part of the steps of the method described in the various embodiments of the present invention.
And storage medium above-mentioned includes: that USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), arbitrary access are deposited
The various media that can store program code such as reservoir (RAM, Random Access Memory), magnetic or disk.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing, in addition, term " the
One ", " second ", " third " etc. are only used for distinguishing description, are not understood to indicate or imply relative importance.
Finally, it should be noted that embodiment described above, only a specific embodiment of the invention, to illustrate the present invention
Technical solution, rather than its limitations, scope of protection of the present invention is not limited thereto, although with reference to the foregoing embodiments to this hair
It is bright to be described in detail, those skilled in the art should understand that: anyone skilled in the art
In the technical scope disclosed by the present invention, it can still modify to technical solution documented by previous embodiment or can be light
It is readily conceivable that variation or equivalent replacement of some of the technical features；And these modifications, variation or replacement, do not make
The essence of corresponding technical solution is detached from the spirit and scope of technical solution of the embodiment of the present invention.Should all it cover in protection of the invention
Within the scope of.Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. a kind of method of image watermark insertion characterized by comprising
By the default pixel extracted in strategy extraction image to be processed, the pixel based on extraction generates image watermark and draws
Point；
It is encrypted based on attribute information of the Encryption Algorithm to the image to be processed comprising Copyright Information, generates encryption information,
The encryption information is converted into binary sequence information；
Based on gray scale algorithm and graphical device interface GDI and the binary sequence information, redraws described image watermark processed and draw
Figure point, obtains described image watermark.
2. the method according to claim 1, wherein the Encryption Algorithm includes symmetric encipherment algorithm and asymmetric
Encryption Algorithm.
3. the method according to claim 1, wherein it is described based on Encryption Algorithm to comprising Copyright Information
The attribute information of image to be processed carries out encryption
Globally unique identifier GUID is generated based on CoCreateGuid function, obtains the key of the symmetric encipherment algorithm；
Based on the Encryption Algorithm, using the image to be processed for described in the key pair including Copyright Information attribute information into
Row encryption.
4. the method according to claim 1, wherein it is described based on gray scale algorithm and graphical device interface GDI with
And the binary sequence information, redrawing described image watermark drawing point processed includes:
The first pixel in described image watermark drawing point is extracted, the first of first pixel is obtained based on gray scale algorithm
Color value；
The transparency that first color value is adjusted based on GDI obtains the second color value of first pixel；
According to the corresponding rule of the binary sequence information, it is determined whether draw second face on first pixel
Color value.
5. according to the method described in claim 4, it is characterized in that, described obtain first pixel based on gray scale algorithm
First color value includes:
In the picture, the color value that a pixel is preset around centered on first pixel is obtained；
The color value of the default pixel is input in gray scale algorithm, average color is generated, obtains first face
Color value.
6. a kind of method of image watermark retrospect characterized by comprising
Pixel all in image is traversed, image watermark drawing point is obtained based on gray scale algorithm；
The binary sequence information is converted to encryption letter by the binary sequence information for extracting described image watermark drawing point
Breath；
The encryption information is decrypted based on decipherment algorithm, generates solution confidential information, the decryption information includes comprising works
Weigh the attribute information of the image to be processed of information.
7. according to the method described in claim 6, it is characterized in that, described determine image watermark drawing point packet based on gray scale algorithm
It includes:
The color value of the pixel in described image is extracted based on gray scale algorithm；
The color value of the color value of the pixel of extraction and the described image watermark drawing point of record is matched, successful match,
The pixel extracted is described image watermark drawing point.
8. a kind of system of image watermark insertion characterized by comprising
Image watermark module is generated, for extracting the tactful pixel extracted in image to be processed, the picture based on extraction by default
Vegetarian refreshments generates image watermark drawing point；
Encrypting module, for being encrypted based on attribute information of the Encryption Algorithm to the image to be processed comprising Copyright Information,
Encryption information is generated, the encryption information is converted into binary sequence information；
Embedded images watermark module, for being based on gray scale algorithm and graphical device interface GDI and the binary sequence information,
Described image watermark drawing point processed is redrawn, described image watermark is obtained.
9. system according to claim 8, which is characterized in that the encrypting module includes:
Key generating unit obtains described symmetrical for generating globally unique identifier GUID based on CoCreateGuid function
The key of Encryption Algorithm；
Encryption unit uses the figure to be processed for described in the key pair including Copyright Information for being based on the Encryption Algorithm
The attribute information of picture is encrypted.
10. a kind of system of image watermark retrospect characterized by comprising
Determining module determines image watermark drawing point based on gray scale algorithm for traversing pixel all in image；
Extraction module, for extracting the binary matrix information of described image watermark drawing point, by the binary matrix information
Be converted to encryption information；
Deciphering module generates solution confidential information, the solution confidential information for the encryption information to be decrypted based on decipherment algorithm
Attribute information including the image to be processed comprising Copyright Information.
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| CN201811489875.7A CN109767375B (en) | 2018-12-06 | 2018-12-06 | Image watermark embedding and tracing method and system |
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| CN201811489875.7A CN109767375B (en) | 2018-12-06 | 2018-12-06 | Image watermark embedding and tracing method and system |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000184173A (en) * | 1998-12-11 | 2000-06-30 | Canon Inc | Method and device for picture processing, method and system for picture delivery, and computer readable storage medium |
| CN107610038A (en) * | 2017-09-29 | 2018-01-19 | 新华三技术有限公司 | The display methods of watermark, apparatus and system |
| CN108596820A (en) * | 2018-04-11 | 2018-09-28 | 重庆第二师范学院 | a kind of image processing system based on information security |
-
2018
- 2018-12-06 CN CN201811489875.7A patent/CN109767375B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000184173A (en) * | 1998-12-11 | 2000-06-30 | Canon Inc | Method and device for picture processing, method and system for picture delivery, and computer readable storage medium |
| CN107610038A (en) * | 2017-09-29 | 2018-01-19 | 新华三技术有限公司 | The display methods of watermark, apparatus and system |
| CN108596820A (en) * | 2018-04-11 | 2018-09-28 | 重庆第二师范学院 | a kind of image processing system based on information security |
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