CN109190340A - A kind of webpage digital watermarking generates, identification, Method of printing and device - Google Patents
A kind of webpage digital watermarking generates, identification, Method of printing and device Download PDFInfo
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- CN109190340A CN109190340A CN201811069215.3A CN201811069215A CN109190340A CN 109190340 A CN109190340 A CN 109190340A CN 201811069215 A CN201811069215 A CN 201811069215A CN 109190340 A CN109190340 A CN 109190340A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/10—Protecting distributed programs or content, e.g. vending or licensing of copyrighted material ; Digital rights management [DRM]
- G06F21/16—Program or content traceability, e.g. by watermarking
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T1/00—General purpose image data processing
- G06T1/0021—Image watermarking
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2201/00—General purpose image data processing
- G06T2201/005—Image watermarking
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Abstract
The present invention provides a kind of generation of webpage digital watermarking image, identification, Method of printing and devices, this method comprises: being encrypted using md5 encryption algorithm to operator's information；Encrypted operator's information is encoded in a manner of default barcode encoding, obtains bar code image；Bar code image is handled using least significant bit image air space algorithm, obtains dark watermarking images；Characterized by character pitch, encrypted operator's information coding is obtained into bright watermarking images into default watermark identifier；Dark watermarking images and bright watermarking images are subjected to splicing synthesis, obtain webpage digital watermarking image.This, which can be realized, is embedded into operator's information in webpage digital watermarking image; have the characteristics that crypticity and information integrity; since watermarking images cover entire webpage; even if web page contents change; such as when local screenshot occurs or taking pictures; remain to restore from the image after leakage hiding operator's information, to play a protective role.
Description
Technical field
The present invention relates to digital watermark technology fields, generate, know more specifically to a kind of webpage digital watermarking image
Not, Method of printing and device.
Background technique
Information-based flourishing today, information protection become a very important project.And digital watermarking is then numerous anti-
Only one of information leakage method important technical.
By stowed position, existing digital watermarking is divided into Spatial Domain Digital Watermarking and two kinds of frequency digital watermarking, is suitable for pure more
Image domains.And webpage digital watermarking image is embedded a watermark into webpage using webpage as carrier.Since webpage itself belongs to
In plain text media, text itself is without any redundancy, and the change of any character can all make the content of webpage in text
It changes, therefore existing digital watermarking not can be used directly in webpage, this will can not play any protection to web page contents
Effect.
Summary of the invention
To solve the above problems, the present invention provide a kind of webpage digital watermarking image generate, identification, Method of printing and dress
It sets, technical solution is as follows:
A kind of webpage digital watermarking image generation method, comprising:
Operator's information is encrypted using md5 encryption algorithm；
Encrypted operator's information is encoded in a manner of default barcode encoding, obtains bar code image；
The bar code image is handled using least significant bit image air space algorithm, obtains dark watermarking images；
Characterized by character pitch, encrypted operator's information coding is obtained into bright water into default watermark identifier
Watermark image；
The dark watermarking images and stated clearly watermarking images are subjected to splicing synthesis, obtain webpage digital watermarking image.
Preferably, described characterized by character pitch, by encrypted operator's information coding to default watermark mark
Bright watermarking images are obtained in knowledge, comprising:
Encrypted operator's information is converted to the hex value for being used for encoding；
The character pitch of default watermark identifier is determined according to the hex value；
Spacing adjustment is carried out to the default watermark identifier based on the character pitch, obtains bright watermarking images.
Preferably, the dark watermarking images and stated clearly watermarking images are subjected to splicing synthesis described, obtain webpage number
Before word watermarking images, further includes:
Background parts based on the dark watermarking images handle the background parts of stated clearly watermarking images.
Preferably, the dark watermarking images and stated clearly watermarking images are subjected to splicing synthesis described, obtain webpage number
Before word watermarking images, further includes:
Rotation processing is carried out to the word segment of stated clearly watermarking images.
Preferably, operator's information includes: and appoints in login username, IP address and the address medium access control mac
Meaning is one or more.
A kind of webpage digital watermarking image generating means, comprising:
Encrypting module, for being encrypted using md5 encryption algorithm to operator's information；
Dark watermark generation module, for being compiled in a manner of default barcode encoding to encrypted operator's information
Code, obtains bar code image；The bar code image is handled using least significant bit image air space algorithm, obtains dark water
Watermark image；
Bright watermark generation module, for characterized by character pitch, by encrypted operator's information coding to pre-
If obtaining bright watermarking images in watermark identifier；
Synthesis module obtains webpage number for the dark watermarking images and stated clearly watermarking images to be carried out splicing synthesis
Word watermarking images.
A kind of webpage digital watermarking image recognition methods, comprising:
Image procossing is carried out to the webpage digital watermarking image in webpage to be identified, so that the webpage digital watermarking is dark
Watermarking images and bright watermarking images are in visible state simultaneously；
The image as region of interest ROI is chosen from the dark watermarking images and stated clearly watermarking images；
If the ROI is the dark watermarking images, bar code identification carried out to the dark watermarking images, and to recognizing
Bar code is decoded；
If the ROI is is stated clearly watermarking images, characterized by character pitch, stated clearly watermarking images are solved
Code；
Decoding result is decrypted using MD5 algorithm to obtain operator's information.
A kind of webpage digital watermarking image identification device, comprising:
Image processing module, for carrying out image procossing to the webpage digital watermarking image in webpage to be identified, so that institute
It states the dark watermarking images of webpage digital watermarking and bright watermarking images while being in visible state；
Module is chosen, is used as region of interest ROI for choosing from the dark watermarking images and stated clearly watermarking images
Image；
Decoder module carries out bar code knowledge to the dark watermarking images if being the dark watermarking images for the ROI
Not, and to the bar code recognized it is decoded；If the ROI is is stated clearly watermarking images, characterized by character pitch, to institute
Watermarking images are stated clearly to be decoded；
Deciphering module obtains operator's information for decoding result to be decrypted using MD5 algorithm.
A kind of webpage digital watermarking image Method of printing, comprising:
If receiving the webpage to be printed of printing user's upload, operator's information of the printing user is extracted；
Obtain the webpage digital watermarking image generated based on operator's information；
The body part of the webpage to be printed is positioned, and the webpage digital watermarking image is embedded into the textual
In point；
The webpage to be printed for being embedded with the webpage digital watermarking image is printed.
A kind of webpage digital watermarking image printing equipment, comprising:
Extraction module, if the webpage to be printed for receiving printing user's upload, extracts the operation of the printing user
People's information；
Module is obtained, for obtaining the webpage digital watermarking image generated based on operator's information；
It is embedded in module, for positioning the body part of the webpage to be printed, and the webpage digital watermarking image is embedding
Enter into the body part；
Print module, for being printed to the webpage to be printed for being embedded with the webpage digital watermarking image.
Compared to the prior art, what the present invention realized has the beneficial effect that
It is embedding to carry out least significant bit using bar code image for webpage digital watermarking image generation method provided by the invention
Enter, the webpage digital watermarking image of various embedded mode generation watermark containing light and shade of character feature coding.This can realize by
Operator's information is embedded into webpage digital watermarking image, has the characteristics that crypticity and information integrity, due to watermarking images
Entire webpage is covered, even if web page contents change, for example when local screenshot occurs or taking pictures, is remained to from the image after leakage
It is middle to restore hiding operator's information, to play a protective role.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is the method flow diagram of webpage digital watermarking image generation method provided in an embodiment of the present invention；
Fig. 2 a is bar code image example；
Fig. 2 b is bright watermarking images example；
Fig. 3 is the Part Methods flow chart of webpage digital watermarking image generation method provided in an embodiment of the present invention；
Fig. 4 a is another example of bright watermarking images；
Fig. 4 b is webpage digital watermarking image example；
Fig. 5 is the structural schematic diagram of webpage digital watermarking image generating means provided in an embodiment of the present invention；
Fig. 6 is the method flow diagram of webpage digital watermarking image recognition methods provided in an embodiment of the present invention；
Fig. 7 is the structural schematic diagram of webpage digital watermarking image identification device provided in an embodiment of the present invention；
Fig. 8 is the method flow diagram of webpage digital watermarking image Method of printing provided in an embodiment of the present invention；
Fig. 9 is the structural schematic diagram of webpage digital watermarking image printing equipment provided in an embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Watermark: digital watermark is that some identification informations are directly embedded into digital carrier (document, image, audio, video etc.)
In the middle or secondary indication, and the use value of original vector is not influenced, be not easy to be ascertained and modify again yet.
Dark watermark: it stashes and unrecognized watermark is not extracted by technology.
Bright watermark: the watermark that visually can intuitively distinguish, but can not Direct Recognition encrypted message therein.
LSB algorithm: watermark information is embedded into carrier by the hiding classic algorithm of the image information based on airspace
The least significant bit of image respective pixel is a kind of simple very effective data hiding technique.
Md5 encryption algorithm: Message Digest 5 is a kind of widely used hash function of computer safety field.I.e. pair
One segment information generates eap-message digest, and calculated MD5 value (eap-message digest) length is fixed.It is any when being carried out to former data
Change, even only having modified 1 byte, obtained MD5 value has very big difference, has stronger tamper-resistance properties.
Bar code: the multiple secret notes and blank that width is not waited are arranged according to certain coding rule, to express one group
The graphical identifier of information.Its coding mode has Codebar, Code 39, Code 11, EAN-8, Code 128 etc..
The embodiment of the present invention provides a kind of webpage digital watermarking image generation method, the method flow diagram of this method such as Fig. 1
It is shown, include the following steps:
S10 encrypts operator's information using md5 encryption algorithm；
In the present embodiment, operator's information of the operator of access webpage can be obtained from server, for example is logged in and used
Name in an account book, IP address and the address medium access control mac etc..It may further be embodied as the key operations people such as employee number, identification card number letter
Breath, the present embodiment are not specifically limited in this embodiment, can be arranged according to actual needs.
During executing step S10, operator's information encrypt can be obtained by using md5 encryption algorithm and is determined
Long watermark information.
S20 encodes encrypted operator's information in a manner of default barcode encoding, obtains bar code image；
In actual application, since 128 yards of CODE can indicate more comprehensive character (number, letter and symbol),
Open ended character length is longer (having high density) in the bar code of same length, is widely used in practical applications.Therefore,
Preferably, presetting barcode encoding mode can be 128 yards of this coding modes of CODE.As Fig. 2 a shows a kind of bar code image
Example.
S30 handles bar code image using least significant bit image air space algorithm, obtains dark watermarking images；
In the present embodiment, bar code image includes blank parts and dark strip part, can be by the secret note and gutter of bar code
Dividing color distinction is several binary lowest orders, for example the RGB color of blank parts is (221,247,222), secret note portion
The RGB color divided is (221,247,213).On the one hand, blank parts and dark strip part can be identified, on the other hand can also be protected
Demonstrate,prove the crypticity of dark watermark.
Encrypted operator's information coding is obtained bright water into default watermark identifier characterized by character pitch by S40
Watermark image；
In the present embodiment, in default watermark identifier, for example on the basis of enterprise's words identification, it is characterized using character pitch
Encrypted operator's information is encoded, to generate bright watermark.That is, to each word in default watermark identifier
Symbol carries out corresponding left and right displacement, indicates encrypted operator's information with character pitch.As Fig. 2 b shows a kind of bright watermark
Example images.
During specific implementation, step S40 is " characterized by character pitch, extremely by encrypted operator's information coding
Bright watermarking images are obtained in default watermark identifier " following steps can be specifically used, Part Methods flow chart is as shown in Figure 3:
Encrypted operator's information is converted to the hex value for being used for encoding by S401；
It is hexadecimal value using the encrypted operator's information of DM5 Encryption Algorithm in the present embodiment, and due to for compiling
The system of code is pre-set, for example can be binary system, can also be ternary, the present embodiment is not specifically limited in this embodiment.
S402 determines the character pitch of default watermark identifier according to hex value；
In the present embodiment, character pitch can be preset, for example, presetting chinese character there are 3 kinds of different distances
Character pitch presets the character pitch that English has 2 kinds of different distances from character for another example.And determining that hex value institute is right
When the character pitch answered, the corresponding relationship between pre-set hex value and character pitch can use to determine, such as right
For 3 hex values " 013 ", corresponding to character pitch be 2 pixels.
S403 carries out spacing adjustment to default watermark identifier based on character pitch, obtains bright watermarking images；
In the present embodiment, left and right displacement is carried out to the character in default watermark identifier using determining character pitch.
In some other embodiment, for the crypticity for guaranteeing bright watermarking images, bright water obtained for step S403
Watermark image can also do following processing:
Background parts based on dark watermarking images handle the background parts of bright watermarking images.
In the present embodiment, the background color of bright watermarking images can be adjusted in conjunction with the background color of dark watermarking images
It is whole, for example set consistent for the color of the two.
It is obtained for step S403 bright for the visual effect for guaranteeing bright watermarking images in some other embodiment
Watermarking images can also do following processing:
Rotation processing is carried out to the word segment of bright watermarking images.
In the present embodiment, the direction and angle that word segment is rotated can be preset.It is bright shown by Fig. 4 a
Watermarking images are the example to Fig. 2 b word segment processing result.
Dark watermarking images and bright watermarking images are carried out splicing synthesis, obtain webpage digital watermarking image by S50.
In the present embodiment, dark watermarking images and bright watermarking images can be handled first, so that the two is of same size；
Further, dark watermarking images and bright watermarking images can be spliced.If Fig. 4 b shows a kind of webpage digital watermarking image example,
Dark watermarking images shown by 2b are set on bright watermarking images shown in Fig. 4 a in the example.
Webpage digital watermarking image generation method provided in an embodiment of the present invention is carried out minimum effective using bar code image
The webpage digital watermarking image of position insertion, various embedded mode generation watermark containing light and shade of character feature coding.This can be real
Now operator's information is embedded into webpage digital watermarking image, has the characteristics that crypticity and information integrity, due to watermark
Image covers entire webpage, even if web page contents change, for example when local screenshot occurs or taking pictures, remains to after leakage
Restore hiding operator's information in image, to play a protective role.
The webpage digital watermarking image generation method provided based on the above embodiment, the embodiment of the present invention is then corresponding to provide one
Kind executes the device of above-mentioned webpage digital watermarking image generation method, and the structural schematic diagram of the device is as shown in Figure 5, comprising:
Encrypting module 10, for being encrypted using md5 encryption algorithm to operator's information；
Dark watermark generation module 20, for being compiled in a manner of default barcode encoding to encrypted operator's information
Code, obtains bar code image；Bar code image is handled using least significant bit image air space algorithm, obtains dark watermark figure
Picture；
Bright watermark generation module 30, for characterized by character pitch, by encrypted operator's information coding to default
Bright watermarking images are obtained in watermark identifier；
Synthesis module 40 obtains webpage digital watermarking for dark watermarking images and bright watermarking images to be carried out splicing synthesis
Image.
Webpage digital watermarking image generating means provided in an embodiment of the present invention may be implemented for operator's information to be embedded into
In webpage digital watermarking image, have the characteristics that crypticity and information integrity, since watermarking images cover entire webpage, even if
Web page contents change, for example when local screenshot occurs or taking pictures, remain to restore from the image after leakage hiding operation
People's information, to play a protective role.
The webpage digital watermarking image generation method and webpage digital watermarking image provided based on the above embodiment generates
Device, the embodiment of the present invention then provide a kind of webpage digital watermarking image recognition methods, the method flow diagram of this method such as Fig. 6 institute
Show, includes the following steps:
S60 carries out image procossing to the webpage digital watermarking image in webpage to be identified, so that webpage digital watermarking is dark
Watermarking images and bright watermarking images are in visible state simultaneously；
In the present embodiment, since bright watermarking images are inherently in visible state, only need in webpage to be identified
Webpage digital watermarking image carries out image procossing, so that dark watermarking images are in visible state.For webpage digital watermarking
The image processing operations of image can be specially image binaryzation, that is, choose a threshold value, be changed into black white image, be greater than this
The image pixel of threshold value is set as white, and the image pixel less than this threshold value is set as black, so that dark watermarking images therein
It can be seen that.
In some other embodiment, for the validity for guaranteeing dark watermarking images, can also to webpage digital watermarking image into
The processing such as row image denoising, gray processing, gradient correction.The present embodiment is not specifically limited in this embodiment, and can be carried out according to actual needs
Processing.
S70 chooses the image as region of interest ROI from dark watermarking images and bright watermarking images；
In the present embodiment, the image as ROI can be chosen by way of man-machine interactively, i.e. user's usage charges mouse selects
One rectangular area.When in case of screenshotss leakage, due to the case where being likely to occur the watermark of screenshot part, it is therefore desirable to by dark water
Watermark image is as ROI；And if it happens take pictures when revealing, due to the case where being likely to occur pixel distortion, it is therefore desirable to Jiang Mingshui
Watermark image is as ROI.
S80 carries out bar code identification to dark watermarking images, and carry out to the bar code recognized if ROI is dark watermarking images
Decoding；If ROI is that bright watermarking images are decoded bright watermarking images characterized by character pitch；
In the present embodiment, during carrying out bar code identification to dark watermarking images, using watermark embedder to the area ROI
Domain is scanned analysis, extracts the bar code image being embedded in dark watermarking images.
During being decoded to bright watermarking images, the character pitch of bright watermarking images is converted to and is used for coding
Hex value, and then the hex value is converted into hexadecimal value.
The process introduced below that character pitch is determined using projection localization method:
Row cutting and character cutting are determined in the projected density of horizontal and vertical directions according to image.Advanced every trade
Cutting, then the character cutting of upright projection is carried out to each line of text (row i.e. where character).
(1) row cutting: progressive scanning picture, the foreground pixel point (forming the pixel of text) for recording every a line are a
Number, obtains the statistical result of an image pixel in the horizontal direction.Then each line of text is determined according to this result
Origin coordinates and end coordinate.A threshold value is set, determines whether the row is text according to the foreground pixel number of every a line
Row, it is the spaced rows between text less than this threshold value that it is more than or equal to this threshold value, which is line of text,.
(2) after line of text segments, then character cutting carried out to each line of text, as principle with row cutting is
, upright projection is first carried out, then given threshold carries out Character segmentation.After the completion of row cutting and character cutting, to obtain every
The coordinate on four boundaries of a character.
(3) according to the coordinate on the boundary of each character, the spacing of adjacent character is calculated.Such as the left and right side of i-th of character
Boundary's abscissa is L respectivelyi、Ri, the right boundary abscissa of i+1 character is Li+1、 Ri+1, then the spacing of the two characters be
Li+1-Ri。
S90 is decrypted decoding result using MD5 algorithm to obtain operator's information.
Webpage digital watermarking image recognition methods provided in this embodiment, when screenshot, the illegal rows such as leakage information such as take pictures
When to occur, leakage main body is navigated to rapidly, this both plays the role of declaring enterprise's copyright, fright illegal operation, while can
Resist the attack in various leakage customer informations.
The webpage digital watermarking image recognition methods provided based on the above embodiment, the embodiment of the present invention then hold by corresponding provide
The device of the above-mentioned webpage digital watermarking image recognition methods of row, the structural schematic diagram of the device as shown in fig. 7, comprises:
Image processing module 50, for carrying out image procossing to the webpage digital watermarking image in webpage to be identified, so that
The dark watermarking images and bright watermarking images of webpage digital watermarking are in visible state simultaneously；
Module 60 is chosen, for choosing the figure as region of interest ROI from dark watermarking images and bright watermarking images
Picture；
Decoder module 70 carries out bar code identification to dark watermarking images, and to identification if being dark watermarking images for ROI
To bar code be decoded；If ROI is that bright watermarking images are decoded bright watermarking images characterized by character pitch；
Deciphering module 80 obtains operator's information for decoding result to be decrypted using MD5 algorithm.
Webpage digital watermarking image identification device provided in this embodiment, when screenshot, the illegal rows such as leakage information such as take pictures
When to occur, leakage main body is navigated to rapidly, this both plays the role of declaring enterprise's copyright, fright illegal operation, while can
Resist the attack in various leakage customer informations.
The webpage digital watermarking image generation method and webpage digital watermarking image provided based on the above embodiment generates
Device, the embodiment of the present invention then provide a kind of webpage digital watermarking image Method of printing, the method flow diagram of this method such as Fig. 8 institute
Show, includes the following steps:
S100 extracts operator's information of printing user if receiving the webpage to be printed of printing user's upload；
In the present embodiment, operator's information includes in login username, IP address and the address medium access control mac
One or more, may further be embodied as key operations people's information such as employee number, identification card number, and the present embodiment does not do specific limit to this
It is fixed, it can be arranged according to actual needs.
In some other embodiment, for the safety for guaranteeing printing, webpage digital watermarking image out shown in Fig. 8 is beaten
Further include following steps on the basis of impression method:
Authentication operations are carried out to printing user, and in the case where the authentication is passed by printing user, executes the extraction printing
Operator's information of user, the step for.
By taking printing user's name as an example, operating right corresponding to printing user's name can be obtained first, if in operating right
Contain print right, then it represents that the authentication is passed by printing user, otherwise, it means that printing user's authentication does not pass through.
S110 obtains the webpage digital watermarking image generated based on operator's information；
In the present embodiment, operator's information can be sent to webpage digital watermarking image generating means, webpage digital watermarking
Video generation device is based on operator's information and generates webpage digital watermarking image, and feeds back.
S120 positions the body part of webpage to be printed, and webpage digital watermarking image is embedded into body part；
In the present embodiment, the body part of webpage to be printed is positioned using document auxiliary locating tool, and flat to repeat
Webpage digital watermarking image is embedded into body part by paving mode.
S130 prints the webpage to be printed for being embedded with webpage digital watermarking image.
In the present embodiment, it can will be embedded with webpage digital watermarking image and be issued to the peripheral hardwares such as printer, duplicator, to realize
Printing.
It, can be to being embedded with the to be printed of webpage digital watermarking image to guarantee printing effect in some other embodiment
Webpage is adjusted, such as background adjustment, to guarantee visual effect.
Webpage digital watermarking image Method of printing provided in an embodiment of the present invention can be believed in effective protection printing route of transmission
The safety of breath, improves risk management ability, expands the application range of digital watermark technology.
The webpage digital watermarking image Method of printing provided based on the above embodiment, the embodiment of the present invention then hold by corresponding provide
The device of the above-mentioned webpage digital watermarking image Method of printing of row, the structural schematic diagram of the device are as shown in Figure 9, comprising:
Extraction module 90, if the webpage to be printed for receiving printing user's upload, extracts the operator of printing user
Information；
Module 100 is obtained, for obtaining the webpage digital watermarking image generated based on operator's information；
It is embedded in module 110, is embedded into just for positioning the body part of webpage to be printed, and by webpage digital watermarking image
In literary part；
Print module 120, for being printed to the webpage to be printed for being embedded with webpage digital watermarking image.
Webpage digital watermarking image printing equipment provided in an embodiment of the present invention can be believed in effective protection printing route of transmission
The safety of breath, improves risk management ability, expands the application range of digital watermark technology.
A kind of webpage digital watermarking image provided by the present invention is generated above, identification, Method of printing and device carry out
It is discussed in detail, used herein a specific example illustrates the principle and implementation of the invention, above embodiments
Explanation be merely used to help understand method and its core concept of the invention；At the same time, for those skilled in the art,
According to the thought of the present invention, there will be changes in the specific implementation manner and application range, in conclusion in this specification
Appearance should not be construed as limiting the invention.
It should be noted that all the embodiments in this specification are described in a progressive manner, each embodiment weight
Point explanation is the difference from other embodiments, and the same or similar parts between the embodiments can be referred to each other.
For the device disclosed in the embodiment, since it is corresponded to the methods disclosed in the examples, so being described relatively simple, phase
Place is closed referring to method part illustration.
It should also be noted that, herein, relational terms such as first and second and the like are used merely to one
Entity or operation are distinguished with another entity or operation, without necessarily requiring or implying between these entities or operation
There are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant are intended to contain
Lid non-exclusive inclusion, so that the element that the process, method, article or equipment including a series of elements is intrinsic,
It further include either the element intrinsic for these process, method, article or equipments.In the absence of more restrictions,
The element limited by sentence "including a ...", it is not excluded that in the process, method, article or equipment including the element
In there is also other identical elements.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (10)
1. a kind of webpage digital watermarking image generation method characterized by comprising
Operator's information is encrypted using md5 encryption algorithm；
Encrypted operator's information is encoded in a manner of default barcode encoding, obtains bar code image；
The bar code image is handled using least significant bit image air space algorithm, obtains dark watermarking images；
Characterized by character pitch, encrypted operator's information coding is obtained into bright watermark figure into default watermark identifier
Picture；
The dark watermarking images and stated clearly watermarking images are subjected to splicing synthesis, obtain webpage digital watermarking image.
2., will be encrypted described the method according to claim 1, wherein described characterized by character pitch
Operator's information coding obtains bright watermarking images into default watermark identifier, comprising:
Encrypted operator's information is converted to the hex value for being used for encoding；
The character pitch of default watermark identifier is determined according to the hex value；
Spacing adjustment is carried out to the default watermark identifier based on the character pitch, obtains bright watermarking images.
3. the method according to claim 1, wherein described by the dark watermarking images and stated clearly watermark figure
As carrying out splicing synthesis, before obtaining webpage digital watermarking image, further includes:
Background parts based on the dark watermarking images handle the background parts of stated clearly watermarking images.
4. the method according to claim 1, wherein described by the dark watermarking images and stated clearly watermark figure
As carrying out splicing synthesis, before obtaining webpage digital watermarking image, further includes:
Rotation processing is carried out to the word segment of stated clearly watermarking images.
5. the method according to claim 1, wherein operator's information includes: login username, IP address
With it is any one or more in the address medium access control mac.
6. a kind of webpage digital watermarking image generating means characterized by comprising
Encrypting module, for being encrypted using md5 encryption algorithm to operator's information；
Dark watermark generation module, for being encoded in a manner of default barcode encoding to encrypted operator's information,
Obtain bar code image；The bar code image is handled using least significant bit image air space algorithm, obtains dark watermark
Image；
Bright watermark generation module, for characterized by character pitch, by encrypted operator's information coding to default water
Marking obtains bright watermarking images in knowing；
Synthesis module obtains webpage number water for the dark watermarking images and stated clearly watermarking images to be carried out splicing synthesis
Watermark image.
7. a kind of webpage digital watermarking image recognition methods characterized by comprising
Image procossing is carried out to the webpage digital watermarking image in webpage to be identified, so that the dark watermark of the webpage digital watermarking
Image and bright watermarking images are in visible state simultaneously；
The image as region of interest ROI is chosen from the dark watermarking images and stated clearly watermarking images；
If the ROI is the dark watermarking images, bar code identification is carried out to the dark watermarking images, and to the bar code recognized
It is decoded；
If the ROI is is stated clearly watermarking images, characterized by character pitch, stated clearly watermarking images are decoded；
Decoding result is decrypted using MD5 algorithm to obtain operator's information.
8. a kind of webpage digital watermarking image identification device characterized by comprising
Image processing module, for carrying out image procossing to the webpage digital watermarking image in webpage to be identified, so that the net
The dark watermarking images and bright watermarking images of page digital watermarking are in visible state simultaneously；
Module is chosen, for choosing the figure as region of interest ROI from the dark watermarking images and stated clearly watermarking images
Picture；
Decoder module carries out bar code identification to the dark watermarking images if being the dark watermarking images for the ROI, and
The bar code recognized is decoded；If the ROI is is stated clearly watermarking images, characterized by character pitch, to being stated clearly
Watermarking images are decoded；
Deciphering module obtains operator's information for decoding result to be decrypted using MD5 algorithm.
9. a kind of webpage digital watermarking image Method of printing characterized by comprising
If receiving the webpage to be printed of printing user's upload, operator's information of the printing user is extracted；
Obtain the webpage digital watermarking image generated based on operator's information；
The body part of the webpage to be printed is positioned, and the webpage digital watermarking image is embedded into the body part
In；
The webpage to be printed for being embedded with the webpage digital watermarking image is printed.
10. a kind of webpage digital watermarking image printing equipment characterized by comprising
Extraction module extracts operator's letter of the printing user if the webpage to be printed for receiving printing user's upload
Breath；
Module is obtained, for obtaining the webpage digital watermarking image generated based on operator's information；
It is embedded in module, is embedded into for positioning the body part of the webpage to be printed, and by the webpage digital watermarking image
In the body part；
Print module, for being printed to the webpage to be printed for being embedded with the webpage digital watermarking image.
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