CN107610038A - The display methods of watermark, apparatus and system - Google Patents
The display methods of watermark, apparatus and system Download PDFInfo
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- CN107610038A CN107610038A CN201710911513.1A CN201710911513A CN107610038A CN 107610038 A CN107610038 A CN 107610038A CN 201710911513 A CN201710911513 A CN 201710911513A CN 107610038 A CN107610038 A CN 107610038A
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Abstract
This application provides a kind of display methods of watermark, apparatus and system, it is related to the technical field of information medium, this method includes：Determine watermark information to be added；Default coded system is obtained, default coded system includes the display transformational relation between kinds of characters and point-like coded graphics；According to default coded system, each character of watermark information is converted to discrete point-like coded graphics, and carry and shown in transparent floating window, wherein, transparent floating window is to pre-set floating window on the display screen, and the application is alleviated due to the relatively low technical problem of the disguised poor caused Information Security of existing digital watermark.
Description
Technical field
The application is related to the technical field of information medium, more particularly, to a kind of display methods of watermark, apparatus and system.
Background technology
With the fast development of information digitalization, the access for being digitized as information of information medium provides a great convenience
Property, while also significantly increase the efficiency and accuracy of information representation.But thing followed side effect is these digital forms
Data file security during circulation cannot get any guarantee, it is easy to by taking pictures, screenshotss, the mode such as printing carry out letter
Breath is divulged a secret.
In order to improve the security of stream compression, digital watermark is introduced.Existing screen digital watermark is typically bright
Wenshui prints, and user after just looking at it is easy to see that be easy to erase key message, so that the watermark added is not taken precautions against
Effect.
Although currently used system or PC device can be identified by being added during existing screen plaintext watermark on user's screen
ID, such as, Zhang San log in machine when the several positions of screen plus " Zhang San " name watermark.Then, when it
Sectional drawing or the Shi Zehui that takes pictures stamp the printed words of " Zhang San " on picture.But in sectional drawing or after the completion of taking pictures, Zhang San can be with
" Zhang San " watermark in picture is smeared out with edit tool, now just without the personal information of Zhang San on picture, even if taking
To after amended picture, it is exactly to be generated by Zhang San that can not also follow the trail of the picture.Therefore, by existing digital watermark to figure
When piece adds watermark, because the disguised poor security for causing data cannot ensure.
In view of the above-mentioned problems, do not propose effective solution also.
The content of the invention
In view of this, the purpose of the application is to provide a kind of display methods of watermark, apparatus and system, with alleviate by
In the relatively low technical problem of the disguised poor caused Information Security of existing digital watermark.
In a first aspect, the embodiment of the present application provides a kind of display methods of watermark, including：Determine watermark letter to be added
Breath；Default coded system is obtained, the default coded system includes aobvious between kinds of characters and point-like coded graphics
Show transformational relation；According to the default coded system, each character of the watermark information is converted into discrete point-like and compiled
Code figure, and carry and shown in transparent floating window, wherein, the transparent floating window is to pre-set on the display screen floating
Window.
Further, according to the default coded system, each character of the watermark information is converted to discrete
Point-like coded graphics, and carrying carries out display in transparent floating window and included：According between kinds of characters and point-like coded graphics
The display transformational relation, each character in the watermark information to be added is converted into corresponding target point-like code pattern
Shape, and carry and shown in the transparent floating window.
Further, methods described also includes：The transparent floating window is divided into by multiple viewing areas according to display screen；
The watermark information is shown in each viewing area of the multiple viewing area.
Further, methods described also includes：Determine the byte quantity included in the watermark information；Based on the byte
Quantity the sub-viewing areas of each byte is determined in the viewing area.
Further, the quantity based on the byte is determined for showing that the sub-viewing areas of each byte includes：By institute
The viewing area for stating watermark information is divided into M sub-viewing areas, and M is the byte quantity in the watermark information；Wherein, each
The sub-viewing areas is used to show the target point-like coded graphics corresponding to a byte.
Further, in addition to：Based on the display transformational relation between kinds of characters and point-like coded graphics, in institute
The target pixel points determined in sub-viewing areas for showing the target point-like coded graphics are stated, are wrapped in the target pixel points
Include multiple sub-pixel points；The target point-like coded graphics is shown by the target pixel points.
Further, show that each target point-like coded graphics includes by the multiple sub-pixel point：According to pre-
At least one of if color, transparency, shape and size, the point-like code pattern is shown by the multiple sub-pixel point
Shape.
Further, it is determined that watermark information to be added includes：User login information is obtained, wherein, the log-on message
Including：The user name when terminal iidentification and/or the login terminal of institute's registration terminal；In the terminal iidentification and/or described
Current time is added in user name, obtains cleartext information；The cleartext information is encrypted, obtains cipher-text information, and
Using the cipher-text information as the watermark information.
Further, methods described also includes：Pending image information and key information are obtained, wherein, described image
Information includes the watermark information；The watermark information in described image information is decrypted by the key information, solved
It is close to obtain log-on message；The user profile of generation described image information is determined according to the log-on message.
Second aspect, the embodiment of the present application also provide a kind of display device of watermark, including：Determining unit, for determining
Watermark information to be added；Acquiring unit, for obtaining default coded system, the default coded system includes difference
Display transformational relation between character and point-like coded graphics；Converting unit, for according to the default coded system, by institute
The each character for stating watermark information is converted to discrete point-like coded graphics, and carries and shown in transparent floating window, wherein,
The transparent floating window is to pre-set floating window on the display screen.
The third aspect, the embodiment of the present application also provide a kind of display system of watermark, including memory, processor and storage
The computer program described in computing device on the memory and described in the computer program that can run on the processor
The step of method described in Shi Shixian the claims.
Fourth aspect, the embodiment of the present application also provide a kind of meter for the non-volatile program code that can perform with processor
Calculation machine computer-readable recording medium, described program code make claim methods described described in the computing device.
In the embodiment of the present application, it is first determined watermark information to be added, then, default coded system is obtained, its
In, in the default coded system, including the display transformational relation between kinds of characters and point-like coded graphics；Finally, press
According to default coded system, each character of watermark information is converted to discrete point-like coded graphics, and carry in transparent float
Shown in window.In the embodiment of the present application, by the way that each character of watermark information to be converted to the coding of discrete point-like
Figure, the vision interference for the content that watermark information covers to lower section can be reduced simultaneously and reached the mesh protected to data
, and then alleviate due to the relatively low technical problem of the disguised poor caused Information Security of existing digital watermark, so as to
Realize the technique effect for improving Information Security.
Other feature and advantage of the application will illustrate in the following description, also, partly become from specification
Obtain it is clear that or being understood by implementing the application.The purpose of the application and other advantages are in specification, claims
And specifically noted structure is realized and obtained in accompanying drawing.
To enable the above-mentioned purpose of the application, feature and advantage to become apparent, preferred embodiment cited below particularly, and coordinate
Appended accompanying drawing, is described in detail below.
Brief description of the drawings
, below will be to specific in order to illustrate more clearly of the application embodiment or technical scheme of the prior art
The required accompanying drawing used is briefly described in embodiment or description of the prior art, it should be apparent that, in describing below
Accompanying drawing is some embodiments of the application, for those of ordinary skill in the art, before creative work is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the flow chart according to a kind of display methods of watermark of the embodiment of the present application；
Fig. 2 is the schematic diagram according to a kind of mode of the coding of the watermark information of 16 system of the embodiment of the present application；
Fig. 3 is the display renderings according to a kind of watermark information of the embodiment of the present application；
Fig. 4 is the interface schematic diagram according to a kind of decoding tool of the embodiment of the present application；
Fig. 5 is illustrated according to a kind of effect decoded by decoding tool to watermark information of the embodiment of the present application
Figure；
Fig. 6 is the schematic diagram according to a kind of display device of watermark of the embodiment of the present application；
Fig. 7 is the schematic diagram according to a kind of display system of watermark of the embodiment of the present application.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present application clearer, below in conjunction with accompanying drawing to the application
Technical scheme be clearly and completely described, it is clear that described embodiment is some embodiments of the present application, rather than
Whole embodiments.Based on the embodiment in the application, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, belong to the scope of the application protection.
Embodiment one：
According to the embodiment of the present application, there is provided a kind of embodiment of the display methods of watermark is, it is necessary to illustrate, in accompanying drawing
Flow the step of illustrating can be performed in the computer system of such as one group computer executable instructions, although also,
Show logical order in flow charts, but in some cases, can with different from order herein perform it is shown or
The step of description.
Fig. 1 is according to a kind of flow chart of the display methods of watermark of the embodiment of the present application, as shown in figure 1, this method bag
Include following steps：
Step S102, determine watermark information to be added；
In the embodiment of the present application, watermark information to be added can be obtained by server, wherein, the watermark information is
Information (that is, cipher-text information described below) after encryption.Specifically, in the embodiment of the present application, server can be
When detecting user login operation system, watermark information to be added is determined, wherein, the watermark information can be that server is real-time
The cipher-text information of generation, specific generating process will be specifically introduced in following embodiments.
Step S104, obtains default coded system, and default coded system includes different bytes and point-like code pattern
Display transformational relation between shape；
In the embodiment of the present application, when watermark information is expressed as the numerical value of 16 systems, default coded system such as Fig. 2 institutes
Show.In coded system as shown in Figure 2, including 16 dot charts, the point-like code pattern of the corresponding character of each dot chart
Shape, the corresponding byte of two point-like coded graphics, that is to say, that in the coded system, including kinds of characters is compiled with point-like
Display transformational relation between code figure.
Optionally, identified in order to facilitate computer, in the embodiment of the present application, according to logic arrangement mistake as shown in Figure 2
Journey is that each character in 16 systems is encoded.Certainly, specific coding rule can be changed.
Step S106, according to above-mentioned default coded system, each character of above-mentioned watermark information is converted to discrete
Point-like coded graphics, and carry and shown in transparent floating window, wherein, transparent floating window is to pre-set on the display screen
Floating window；
In the embodiment of the present application, can be existed using GDI GDI (Graphics Device Interface)
A fully transparent window (that is, transparent floating window) has been made on screen, wherein, the size of the window is counted for display screen is shown
The size of calculation machine operating system virtual desktop.
In the embodiment of the present application, server is after default coded system is got, it is possible to by watermark information
Each character is converted to discrete point-like coded graphics, and the point-like coded graphics after conversion is included in transparent floating window.
Optionally, can be according to the display transformational relation between kinds of characters and point-like coded graphics, by water to be added
Each character is converted to corresponding target point-like coded graphics in official seal breath, and carries and shown in transparent floating window.
For example, the character representation of watermark information is：25684671ACDB, wherein, each two character takes a byte, therefore
Byte includes respectively in the watermark information：25th, 68,46,71, AC and DB.In the embodiment of the present application, can be as shown in Figure 2
Display transformational relation between kinds of characters and point-like coded graphics, it is that corresponding target point-like is compiled by above-mentioned each byte conversion
Code figure；Then, the target point-like coded graphics is included in transparent floating window.
It should be noted that can include watermark information on whole display screen, watermark information can also be shown
In the subregion of display screen, being particularly shown region can be configured and change according to being actually needed.
In the embodiment of the present application, the side described by above-mentioned steps S102 to step S106 can be performed by server
Method.Wherein, the server is the server of some service system.For example, when user passes through terminal device logs operating system AAA
When, the server of service is provided for operating system AAA will perform above-mentioned steps S102 to step S106, with according to above-mentioned described
Coded system show watermark information on the display screen of terminal device.
In the embodiment of the present application, it is first determined watermark information to be added, then, default coded system is obtained, its
In, in the default coded system, including the display transformational relation between kinds of characters and point-like coded graphics；Finally, press
According to default coded system, each character of watermark information is converted to discrete point-like coded graphics, and carry in transparent float
Shown in window.In the embodiment of the present application, by the way that each character of watermark information to be converted to the coding of discrete point-like
Figure, the vision interference for the content that watermark information covers to lower section can be reduced simultaneously and reached the mesh protected to data
, and then alleviate due to the relatively low technical problem of the disguised poor caused Information Security of existing digital watermark, so as to
Realize the technique effect for improving Information Security.
In an optional embodiment of the embodiment of the present application, step S102, that is, watermark information to be added is determined
Detailed process is described as follows：
First, in user login operation system, user login information is obtained, wherein, log-on message includes：Log in eventually
The user name when terminal iidentification and registration terminal at end；
Wherein, terminal iidentification is can uniquely represent the identification information of institute's registration terminal, wherein, terminal iidentification can be institute
The mac address information of registration terminal, can also be the terminal name (that is, computer name) of institute's registration terminal.Log in the terminal
When user name can be user job number, or Administrator titles that user is set in the terminal in advance.
Optionally, current time can be added in terminal iidentification and/or user name, obtains cleartext information；Wherein it is possible to
Be spaced predetermined period and obtain current time, and then generate watermark information, i.e., watermark information can be over time change and occur
Change.
Optionally, in order to correctly trace photo opporunity, under conditions of having network connection, it can trigger and obtain in network
Standard time.Finally, cleartext information is encrypted, obtains cipher-text information, and using cipher-text information as watermark information.
In the embodiment of the present application, when server detects that user signs in operating system, server passes through behaviour first
The interface for making system gets the terminal iidentification of user institute registration terminal, and user name when logging in the terminal.
Then, current time is added at least one of terminal iidentification and user name, obtains cleartext information.For example,
One whole section of character string is gathered into the splicing that joins end to end of terminal iidentification and user name, obtains above-mentioned concatenation information.Spelled in splicing
After connecing information, current time is added in concatenation information, and using obtained whole character string as cleartext information.
After cleartext information is obtained, cleartext information is carried out using target cipher mode (for example, 3DES encryption mode)
Encryption, the data after being encrypted, wherein, the data after encrypting can be binary data.If after encryption
Data are binary data, can be changed the data after the encryption, for example, carrying out the conversion of 16 systems, 10 enter
System conversion or the conversion of 8 systems, so as to obtain corresponding cipher-text information, and believe the cipher-text information after the conversion as watermark
Breath.
It is well known that the data of 16 systems are expressed as：0th, 1,2,3,4,5,6,7,8,9, A, B, C, D, E and F.Therefore, such as
Fruit watermark information is the cipher-text information of 16 systems, then the watermark information is by some or all of character in above-mentioned 16 characters
Composition, wherein, two adjacent characters form a byte.Therefore, in the embodiment of the present application, if watermark information enters for 16
The cipher-text information of system, then be to be encoded respectively to above-mentioned 16 characters in advance when being encoded to watermark information.
For the watermark information of 16 systems, in the mode of default coding dot chart as shown in Figure 2, each character can be with
8 squares for being divided into 4 rows 2 row are shown that in the dot chart, each row are only able to display one of square.Therefore,
4 kinds of selections are often shown, according to multiplicative principle, 2 row just have 4*4 i.e. 16 kind selection.16 of i.e. corresponding 16 systems of this 16 kinds selections
Character.From figure 2 it can be seen that when the character of 16 systems is " 0 ", point-like coded graphics is respectively displayed on first in dot chart
In first square in first square and secondary series of row.When the character of 16 systems is " 1 ", point-like coded graphics difference
It is shown in first square of dot chart first row and second square of secondary series.The rest may be inferred, in display, by right
The position arrangement of point-like figure, the coding for constituting the 16 system position kinds of characters is shown, encodes the scattergram after (arrangement)
Shape, as point-like coded graphics.
It is point-like coded graphics according to corresponding that is, when watermark information is shown in transparent floating window
Dot chart in display mode be shown on the correspondence position of transparent floating window.
Explanation is needed further exist for, if watermark information is the cipher-text information of 8 systems, dot chart can now be divided
Into 6 squares of 3 rows 2 row, then, compiled according to logic arrangement process as shown in Figure 2 for each character in 8 systems
Code, obtains the coded system of each character in 8 systems, this is not described in detail.
In the embodiment of the present application, pre-set after completing above-mentioned default coded system, it is possible to according to above-mentioned step
Method described by rapid S102 to step S106 encodes the target point-like corresponding to each character in watermark information to be added
It is graphically displayed in transparent floating window.Wherein, include by target point-like coded graphics when in transparent floating window, can first determine water
The viewing area of official seal breath.
In an optional embodiment of the embodiment of the present application, watermark viewing area can be determined by two ways,
First way is using the subregion in display screen as watermark viewing area, and mode is by display screen in second
Zone Full is as watermark viewing area.Below, both modes will be introduced respectively.
Mode one, the display mode of subregion
In the embodiment of the present application, subregion can be any one region in display screen, and the region is advance
The region set.When pass-through mode one carries out the display of watermark information, server is by the automatic above-mentioned mesh being converted to
Punctuate shape coded graphics is shown in the subregion.
Mode two, the display mode of Zone Full
In the embodiment of the present application, when viewing area is the Zone Full of display screen, following step will be performed：
First, the transparent floating window is divided into by multiple viewing areas according to display screen；
Then, the watermark information is shown in each viewing area of the multiple viewing area.
Specifically, each viewing area show watermark information according in above-described embodiment according to discrete point-like coded graphics
It has been shown that, specifically repeated no more.
Shown in the present embodiment by the way of multiple redundant watermarks, can be when tracing photographer, if therein
In the case of one or more watermark information is unsharp, it is identified using other watermark informations.Further, since the application
Watermark information be converted to discrete point-like coded graphics after, still will not shadow even if being shown to multiple watermark informations
The vision of user is rung, ensures that reading of the user for the information below floating window is unaffected.
In the embodiment of the present application, transparent floating window can be divided into multiple viewing areas according to certain division preset rules
Domain, wherein, multiple viewing areas can be set according to being actually needed.Wherein, multiple viewing areas can be the aobvious of rule
Show region, can also be irregular viewing area.
For example, display screen can be divided into N1 × N2 viewing area, N1 and N2 are the integer more than 0, and N1 and
N2 is equal or unequal；Then, watermark information is shown in each viewing area of N1 × N2 viewing area.Namely
Say, the target point-like code pattern of each character in watermark information is shown in each viewing area of N1 × N2 viewing area
Shape.For whole display screen, there is N1 × N2 identical watermark information.
In the embodiment of the present application, in order to realize anti-interference and attack resistance function, whole display screen can be divided into
N1 × N2 viewing area, then, viewing area (that is, ciphertext viewing area) of each viewing area as watermark information, this
When, state multiple ciphertext redundancies just occur on the display screen, some byte area will not be caused to show unclear and can not decrypt
Phenomenon.After display screen to be divided into N1 × N2 viewing area, it is possible to show watermark in each viewing area
Information.
Specifically, when whole display screen is divided into N1 × N2 viewing area, whole display screen is obtained first
Length and width, then, whole display screen is divided into N1 × N2 equal-sized viewing areas, each viewing area is as water
The viewing area of official seal breath.
In the embodiment of the present application, through the above way one or mode two determine watermark information viewing area it
Afterwards, it is possible to include watermark information in viewing area.
Before including in viewing area by watermark information, first, the word included in the watermark information is determined
The quantity of section；Then, the quantity based on the byte determines the sub-viewing areas of each byte in the viewing area.
It should be noted that the mode of the sub-viewing areas of each byte is determined in viewing area based on the quantity of byte
There are many kinds, in the embodiment of the present application, the sub-viewing areas of each byte can be determined according to following sides：
The viewing area of the watermark information is divided into M sub-viewing areas, M is the quantity of the byte；Wherein, often
The individual sub-viewing areas is used to show the target point-like coded graphics corresponding to a byte.
In another optional embodiment, M that the viewing area of watermark information can be divided into M1 × M2 are aobvious
Show region, and using each viewing area in M viewing area as byte viewing area.
It should be noted that M1 and M2 value can be determined according to following rule：M1 and M2 product is that M, M1 and M2 are equal
For the integer more than 0, and the difference between M1 and M2 is minimum.For example, byte quantity is 8, now according to above-mentioned rule, M1 is determined
Value be 4, and determine M2 value be 2.Form i.e. in a regular array shows point-like coded graphics, especially in manual audit
When, it is easy to the decoding to watermark information to distinguish.
It is divided into by the viewing area of watermark information after M sub-viewing areas, it is possible to based on kinds of characters and point
Display transformational relation between shape coded graphics, determines the target for display target point-like coded graphics in sub-viewing areas
Pixel, wherein, target pixel points include multiple sub-pixel points；Then, each mesh is shown by multiple sub-pixel points
Punctuate shape coded graphics.
For example, understood in the coded system figure shown in Fig. 2, in the point-like coded graphics corresponding to each dot chart,
Including two sub- point-like coded graphics, that is to say, that for each byte in watermark information, wrapped in target point-like coded graphics
Containing 4 sub- point-like coded graphics.Now, it is necessary to by this 4 sub- point-like coded graphics it is discrete include in corresponding sub- display
In region.By 4 sub- point-like coded graphics it is discrete include in corresponding sub-viewing areas, it is necessary to first in sub-viewing areas
The middle target pixel points determined for every sub- point-like coded graphics in display target point-like coded graphics.Wherein, target point-like
The corresponding target pixel points of every sub- point-like coded graphics in coded graphics, and a target pixel points include more height
Pixel.After target pixel points are determined, it is possible to by every in target pixel points display target point-like coded graphics
Individual sub- point-like coded graphics.
It should be noted that generally, a target pixel points include 2 to 25 sub- pixels.That is,
Every sub- point-like coded graphics in 2 to 25 pixel display target point-like coded graphics can be passed through.By to target picture
The regulation of vegetarian refreshments sub-pixel point quantity, it may be determined that optimal visual effect, so as to ensure not interfere with when user uses
Visual experience.
, can be according to the sequencing of each byte in watermark information by M it should be noted that in the embodiment of the present application
Individual byte is shown in M sub-viewing areas.Specifically, can be according to pre-set color, transparency, in shape and size at least
One of, show the target point-like coded graphics by the target pixel points.
For example, a hexadecimal string is：0123456789ABCDEF, the byte quantity included in the character string are
16 ÷ 2=8, then that is, in the viewing area of each watermark information, including 16 ÷ 2=8 sub-viewing areas.
Wherein, 01 display content as first sub-viewing areas, 23 display content ... ... as second sub-viewing areas,
Display contents of the EF as the 8th sub-viewing areas.And 2 hex bits in each sub-viewing areas are then according to successively
Order from left to right arranges, for example, 01 is 0 to come the left side, 1 comes the right.Then by the display of whole watermark information during display
Zone leveling is divided into 4*2 sub-viewing areas, shows that every height shows successively from left to right and then from top to bottom since upper left
Show the content in region.
In the embodiment of the present application, as shown in Figure 3 is a kind of display renderings of watermark information.Wherein, if pressed
When being changed according to coded system as shown in Figure 2 to watermark information, design sketch as shown in Figure 3 will be shown.Can be with from Fig. 3
Find out, first, the transparent floating window on display screen is divided into 4*2 8 viewing areas, wherein, used in each viewing area
In display watermark information.And from figure 3, it can be seen that each viewing area includes 6*2 12 sub-viewing areas, that is,
Say, the watermark information includes 12 bytes.Further, from figure 3, it can be seen that being used to show in each sub-viewing areas
Each byte in watermark information.That is, in each sub-viewing areas, the target of each byte for showing watermark information
Point-like coded graphics.
In the embodiment of the present application, after the image for carrying above-mentioned watermark information is compromised, technical staff can lead to
Cross and watermark information is decoded to follow the trail of the personnel of divulging a secret.
In another optional embodiment, the personnel of divulging a secret are followed the trail of including as follows by being decoded to watermark information
Step：
First, pending image information and key information are obtained, wherein, image information includes watermark information；Wherein,
Key information is corresponding with the key during encryption being previously mentioned in above-described embodiment.
Then, the watermark information in image information is decrypted by key information, decryption obtains log-on message；
Finally, the user profile of generation image information is determined according to log-on message.
In the embodiment of the present application, user can input key information by interface as shown in Figure 4 and Figure 5, then, clothes
Device be engaged in after the key information is got, the watermark information in image information is decrypted, obtains the plaintext of watermark information
Information.By foregoing description, the cleartext information of watermark information is the user name by registration terminal, user institute registration terminal
The current time of terminal iidentification and system forms.By after being decrypted to obtain cleartext information to watermark information, it is possible to solve
It is close to obtain the current time of above-mentioned user name, terminal iidentification and system.
Specifically, user opens decoding work as shown in Figure 4 after acquisition is superimposed with the image information of above-mentioned watermark information
Tool, according to the coding shown in Fig. 2, inputs key information from top left to bottom right.Then, clicking on decryption can be by dot matrix
Figure is reduced into original information.For example, Fig. 3, a total of 8 identical ciphertexts, the arrangement of each ciphertext is the same, can basis
Picture clarity finds the arrangement mode of corresponding target point-like coded graphics, then, the button can input in click tools
Key information, for example, input 41354812F34012F3404148.Run into the character of tangible None- identified can click on "" generation
Replace.Decryption button is clicked on after the completion of fully entering can complete the decryption of character point.Decryption effect see Fig. 5, wherein, user name and
Terminal iidentification first place is connected to form a character string, is then again added to the character string if having unnecessary position in ciphertext
Below, a redundancy so can then be formed again in one large, such attack resistance effect also can be more preferable.
From figure 3, it can be seen that watermark is showed due to mode that watermark information is marked with a kind of " slight type ", almost etc.
It is same as " stealthy watermark ".If screen shot or screenshotss, once the leakage of a state or party secret occurs, you can pass through the water on photo of divulging a secret
Official seal breath quick lock in is divulged a secret personnel.The watermark information of above-mentioned point-like has the spy of resistant to collapsing, redundancy backup, anti-bohr line etc.
Point, i.e., no matter how photo compresses, optimizes, folding positioning all without the audit for having influence on watermark information and source of divulging a secret.Only need
To input watermark information in decoding tool to be inquired about, it is possible to the blabber of locking.If the obtained picture divulged a secret is not
Enough complete, system can also be supported to inquire accuracy highest result.
To sum up, by foregoing description, in the embodiment of the present application, this method mainly has the advantage that：
Firstth, watermark information has completely included cleartext information, it is not necessary to relies on other information to be decoded again；
Secondth, the color of aiming symbol in watermark information, size, transparency, to possess several parts of redundancies all configurable, so as to
To be optimal configuration according to actual conditions；
Even if the 3rd, most contents are altered in the image information comprising watermark information, remainder can also be restored
The content divided, the content of remainder is gone out so as to the information inference in reality.
For the watermark information of 16 systems, the method provided using the embodiment of the present application only needs to encode comprising 4 point-like
Figure, it is possible to realize that the data messages such as terminal name, user name and current time in system are shown on the display screen of terminal.
The vector watermark encoder formed by the watermark encoder mode is more efficient, is attached on screen, disguised stronger, to user's
Interference is smaller.The method provided using the embodiment of the present application, redundancy is higher, even if the obtained picture divulged a secret is sufficiently complete,
System can also be supported to inquire accuracy highest result.
Embodiment two：
The embodiment of the present application additionally provides a kind of display device of watermark, and the display device of the watermark is mainly used in performing sheet
The display methods for the watermark that application embodiment the above is provided, the display of the watermark provided below the embodiment of the present application fill
Put and do specific introduction.
Fig. 6 is according to a kind of schematic diagram of the display device of watermark of the embodiment of the present application, as shown in fig. 6, the watermark
Display device mainly includes：First determining unit 10, acquiring unit 20 and conversion display unit 30, wherein：
First determining unit 10, for determining watermark information to be added；
Acquiring unit 20, for obtaining default coded system, the default coded system include kinds of characters with
Display transformational relation between point-like coded graphics；
Display unit 30 is changed, for according to the default coded system, each character of the watermark information to be turned
Discrete point-like coded graphics is changed to, and carries and is shown in transparent floating window, wherein, the transparent floating window is to pre-set
Floating window on the display screen.
In the embodiment of the present application, it is first determined watermark information to be added, then, default coded system is obtained, its
In, in the default coded system, including the display transformational relation between kinds of characters and point-like coded graphics；Finally, press
According to default coded system, each character of watermark information is converted to discrete point-like coded graphics, and carry in transparent float
Shown in window.In the embodiment of the present application, by the way that each character of watermark information to be converted to the coding of discrete point-like
Figure, the vision interference for the content that watermark information covers to lower section can be reduced simultaneously and reached the mesh protected to data
, and then alleviate due to the relatively low technical problem of the disguised poor caused Information Security of existing digital watermark, so as to
Realize the technique effect for improving Information Security.
Optionally, conversion display unit is used for：Changed according to the display between kinds of characters and point-like coded graphics
Relation, each character in the watermark information to be added is converted into corresponding target point-like coded graphics, and carried in institute
State and shown in transparent floating window.
Optionally, above-mentioned conversion display unit 30 is additionally operable to：The transparent floating window is divided into according to display screen multiple
Viewing area；The watermark information is shown in each viewing area of the multiple viewing area.
Optionally, going back said apparatus also includes：Second determining unit, for the byte for determining to include in the watermark information
Quantity；3rd determining unit, the son display of each byte is determined in the viewing area for the quantity based on the byte
Region.
Optionally, the 3rd determining unit is used for：The viewing area of the watermark information is divided into M sub-viewing areas, M
For the byte quantity in the watermark information；Wherein, each sub-viewing areas is used to show the mesh corresponding to a byte
Punctuate shape coded graphics.
Optionally, the device also includes：4th determining unit, for based between kinds of characters and point-like coded graphics
The display transformational relation, the object pixel for showing the target point-like coded graphics is determined in the sub-viewing areas
Point, the target pixel points include multiple sub-pixel points；Display unit, for showing the mesh by the target pixel points
Punctuate shape coded graphics.
Optionally, display unit is used for：According at least one of pre-set color, transparency, shape and size, pass through institute
State target pixel points and show the target point-like coded graphics.
Optionally, the first determining unit is used for：User login information is obtained, wherein, the log-on message includes：Logged in
The user name when terminal iidentification and/or the login terminal of terminal；Added in the terminal iidentification and/or the user name
Current time, obtain cleartext information；The cleartext information is encrypted, obtains cipher-text information, and the ciphertext is believed
Breath is used as the watermark information.
Optionally, the device also includes deciphering module, is used for：Pending image information and key information are obtained, wherein,
Described image information includes the watermark information；The watermark information in described image information is carried out by the key information
Decryption, decryption obtain log-on message；The user profile of generation described image information is determined according to the log-on message.
The device that the embodiment of the present application is provided, its realization principle and caused technique effect and preceding method embodiment phase
Together, to briefly describe, device embodiment part does not refer to part, refers to corresponding contents in preceding method embodiment.
The display device for the watermark that the embodiment of the present application provides, the display methods of the watermark provided with above-described embodiment have
Identical technical characteristic, so can also solve identical technical problem, reach identical technique effect.
Embodiment three：
Referring to Fig. 7, the embodiment of the present application also provides a kind of display system 100 of watermark, including：Processor 70, memory
71, bus 72 and communication interface 73, the processor 70, communication interface 73 and memory 71 are connected by bus 72；Processor
70 are used to perform the executable module stored in memory 71, such as computer program.
Wherein, memory 71 may include high-speed random access memory (RAM, Random Access Memory),
Non-labile memory (non-volatile memory), for example, at least a magnetic disk storage may also be included.By extremely
A few communication interface 73 (can be wired or wireless) is realized logical between the system network element and at least one other network element
Letter connection, can use internet, wide area network, LAN, Metropolitan Area Network (MAN) etc..
Bus 72 can be isa bus, pci bus or eisa bus etc..The bus can be divided into address bus, data
Bus, controlling bus etc..Only represented for ease of representing, in Fig. 7 with a four-headed arrow, it is not intended that an only bus or
A type of bus.
Wherein, memory 71 is used for storage program, and the processor 70 performs above-mentioned storage after execute instruction is received
Program, the method performed by device that the stream process that foregoing the embodiment of the present application any embodiment discloses defines can apply to
In processor 70, or realized by processor 70.
Processor 70 is probably a kind of IC chip, has the disposal ability of signal.In implementation process, above-mentioned side
Each step of method can be completed by the integrated logic circuit of the hardware in processor 70 or the instruction of software form.Above-mentioned
Processor 70 can be general processor, including central processing unit (Central Processing Unit, abbreviation CPU), network
Processor (Network Processor, abbreviation NP) etc.；It can also be digital signal processor (Digital Signal
Processing, abbreviation DSP), application specific integrated circuit (Application Specific Integrated Circuit, referred to as
ASIC), ready-made programmable gate array (Field-Programmable Gate Array, abbreviation FPGA) or other are programmable
Logical device, discrete gate or transistor logic, discrete hardware components.It can realize or perform in the embodiment of the present application
Disclosed each method, step and logic diagram.General processor can be microprocessor or the processor can also be appointed
What conventional processor etc..The step of method with reference to disclosed in the embodiment of the present application, can be embodied directly in hardware decoding processing
Device performs completion, or performs completion with the hardware in decoding processor and software module combination.Software module can be located at
Machine memory, flash memory, read-only storage, programmable read only memory or electrically erasable programmable memory, register etc. are originally
In the ripe storage medium in field.The storage medium is located at memory 71, and processor 70 reads the information in memory 71, with reference to
Its hardware completes the step of above method.
In addition, in the description of the embodiment of the present application, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in application.
, it is necessary to explanation in the description of the present application, term " " center ", " on ", " under ", "left", "right", " vertical ",
The orientation or position relationship of the instruction such as " level ", " interior ", " outer " be based on orientation shown in the drawings or position relationship, merely to
Be easy to describe the application and simplify to describe, rather than instruction or imply signified device or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not intended that limitation to the application.In addition, term " first ", " second ",
" the 3rd " is only used for describing purpose, and it is not intended that instruction or hint relative importance.
A kind of display methods for watermark that the embodiment of the present application is provided, the computer program product of apparatus and system, bag
The computer-readable recording medium for storing the executable non-volatile program code of processor is included, described program code includes
Instruction can be used for performing the method described in previous methods embodiment, and specific implementation can be found in embodiment of the method, no longer superfluous herein
State.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and unit, the corresponding process in preceding method embodiment is may be referred to, will not be repeated here.
In several embodiments provided herein, it should be understood that disclosed systems, devices and methods, can be with
Realize by another way.Device embodiment described above is only schematical, for example, the division of the unit,
Only a kind of division of logic function, can there is other dividing mode when actually realizing, in another example, multiple units or component can
To combine or be desirably integrated into another system, or some features can be ignored, or not perform.It is another, it is shown or beg for
The mutual coupling of opinion or direct-coupling or communication connection can be by some communication interfaces, device or unit it is indirect
Coupling or communication connection, can be electrical, mechanical or other forms.
The unit illustrated as separating component can be or may not be physically separate, show as unit
The part shown can be or may not be physical location, you can with positioned at a place, or can also be distributed to multiple
On NE.Some or all of unit therein can be selected to realize the mesh of this embodiment scheme according to the actual needs
's.
In addition, each functional unit in each embodiment of the application can be integrated in a processing unit, can also
That unit is individually physically present, can also two or more units it is integrated in a unit.
If the function is realized in the form of SFU software functional unit and is used as independent production marketing or in use, can be with
It is stored in the executable non-volatile computer read/write memory medium of a processor.Based on such understanding, the application
The part that is substantially contributed in other words to prior art of technical scheme or the part of the technical scheme can be with software
The form of product is embodied, and the computer software product is stored in a storage medium, including some instructions are causing
One computer equipment (can be personal computer, server, or network equipment etc.) performs each embodiment institute of the application
State all or part of step of method.And foregoing storage medium includes：USB flash disk, mobile hard disk, read-only storage (ROM, Read-
Only Memory), random access memory (RAM, Random Access Memory), magnetic disc or CD etc. are various can be with
The medium of store program codes.
Finally it should be noted that：The embodiment of embodiment described above, only the application, to illustrate the application
Technical scheme, rather than its limitations, the protection domain of the application is not limited thereto, although with reference to the foregoing embodiments to this Shen
It please be described in detail, it will be understood by those within the art that：Any one skilled in the art
In the technical scope that the application discloses, it can still modify to the technical scheme described in previous embodiment or can be light
Change is readily conceivable that, or equivalent substitution is carried out to which part technical characteristic；And these modifications, change or replacement, do not make
The essence of appropriate technical solution departs from the spirit and scope of the embodiment of the present application technical scheme, should all cover the protection in the application
Within the scope of.Therefore, the protection domain of the application described should be defined by scope of the claims.
Claims (11)
- A kind of 1. display methods of watermark, it is characterised in that including：Determine watermark information to be added；Default coded system is obtained, the default coded system includes aobvious between kinds of characters and point-like coded graphics Show transformational relation；According to the default coded system, each character of the watermark information is converted to discrete point-like coded graphics, And carry and shown in transparent floating window, wherein, the transparent floating window is to pre-set floating window on the display screen.
- 2. according to the method for claim 1, it is characterised in thatAccording to the default coded system, each character of the watermark information is converted to discrete point-like coded graphics, And carrying carries out display in transparent floating window and included：According to the display transformational relation between kinds of characters and point-like coded graphics, by the watermark information to be added Each character is converted to corresponding target point-like coded graphics, and carries and shown in the transparent floating window.
- 3. according to the method for claim 1, it is characterised in that also include：The transparent floating window is divided into by multiple viewing areas according to display screen；The watermark information is shown in each viewing area of the multiple viewing area.
- 4. according to the method described in claim any one of 1-3, it is characterised in that also include：Determine the byte quantity included in the watermark information；Quantity based on the byte determines the sub-viewing areas of each byte in the viewing area.
- 5. according to the method for claim 4, it is characterised in that the quantity based on the byte is true in the viewing area The sub-viewing areas of fixed each byte includes：The viewing area of the watermark information is divided into M sub-viewing areas, M is the byte quantity in the watermark information；Wherein, each sub-viewing areas is used to show the target point-like coded graphics corresponding to a byte.
- 6. according to the method for claim 5, it is characterised in that also include：Based on the display transformational relation between kinds of characters and point-like coded graphics, determine to use in the sub-viewing areas In the target pixel points for showing the target point-like coded graphics, the target pixel points include multiple sub-pixel points；The target point-like coded graphics is shown by the target pixel points.
- 7. according to the method for claim 6, it is characterised in that each target is shown by the multiple sub-pixel point Point-like coded graphics includes：According at least one of pre-set color, transparency, shape and size, the target is shown by the target pixel points Point-like coded graphics.
- 8. according to the method for claim 1, it is characterised in that determine that watermark information to be added includes：User login information is obtained, wherein, the log-on message includes：Described in the terminal iidentification of institute's registration terminal and/or login User name during terminal；Current time is added in the terminal iidentification and/or the user name, obtains cleartext information；The cleartext information is encrypted, obtains cipher-text information, and using the cipher-text information as the watermark information.
- 9. according to the method for claim 1, it is characterised in that methods described also includes：Pending image information and key information are obtained, wherein, described image information includes the watermark information；The watermark information in described image information is decrypted by the key information, decryption obtains log-on message；The user profile of generation described image information is determined according to the log-on message.
- A kind of 10. display device of watermark, it is characterised in that including：First determining unit, for determining watermark information to be added；Acquiring unit, for obtaining default coded system, the default coded system includes kinds of characters and compiled with point-like Display transformational relation between code figure；Change display unit, for according to the default coded system, by each character of the watermark information be converted to from Scattered point-like coded graphics, and carry and shown in transparent floating window, wherein, the transparent floating window is to be set in advance in display Floating window on screen.
- 11. a kind of display system of watermark, including memory, processor and it is stored on the memory and can be in the processing The computer program run on device, it is characterised in that realize that aforesaid right will described in the computing device during computer program The step of seeking the method any one of 1 to 9.
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109146759A (en) * | 2018-07-23 | 2019-01-04 | 深圳市联软科技股份有限公司 | A kind of forming method, device, medium and the equipment of figure watermark |
| CN109767375A (en) * | 2018-12-06 | 2019-05-17 | 北京北信源信息安全技术有限公司 | The method and system of image watermark insertion and retrospect |
| CN109801205A (en) * | 2018-12-21 | 2019-05-24 | 苏宁易购集团股份有限公司 | A kind of implicit watermark adding method and device traced to the source |
| CN110120003A (en) * | 2018-02-07 | 2019-08-13 | 上海诺亚投资管理有限公司 | A kind of method and system of the acquisition with watermark webpage |
| CN110148100A (en) * | 2019-05-10 | 2019-08-20 | 腾讯科技（深圳）有限公司 | A kind of image conversion method, device, storage medium and computer equipment |
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| CN110838083A (en) * | 2019-11-11 | 2020-02-25 | 闻泰通讯股份有限公司 | Watermark adding method, device, equipment and storage medium |
| CN111415169A (en) * | 2019-01-04 | 2020-07-14 | 广州哨马智能装备科技有限公司 | Method and system for safely transferring products |
| CN111680273A (en) * | 2020-05-21 | 2020-09-18 | 北京北信源软件股份有限公司 | Watermark embedding method, device, electronic equipment and readable storage medium |
| CN113139163A (en) * | 2021-04-15 | 2021-07-20 | 上海上讯信息技术股份有限公司 | Method and device for generating watermark information on application program interface |
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| CN117173000A (en) * | 2023-09-08 | 2023-12-05 | 广州市科帕电子科技有限公司 | Information hiding method and system based on quaternary coding |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005093653A1 (en) * | 2004-03-25 | 2005-10-06 | Sanyo Electric Co., Ltd | Image correcting device and method, image correction database creating method, information data providing device, image processing device, information terminal, and information database device |
| CN104778589A (en) * | 2015-03-24 | 2015-07-15 | 立德高科(北京)数码科技有限责任公司 | Method and device for binding data in combination-type anti-fake label |
| CN105141409A (en) * | 2015-08-12 | 2015-12-09 | 深圳市联软科技有限公司 | Method, terminal and server for realizing screen digital watermarks |
| CN105306479A (en) * | 2015-11-11 | 2016-02-03 | 江苏中威科技软件系统有限公司 | Computer data embedding method, computer data displaying method and computer data embedding and displaying device |
-
2017
- 2017-09-29 CN CN201710911513.1A patent/CN107610038B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005093653A1 (en) * | 2004-03-25 | 2005-10-06 | Sanyo Electric Co., Ltd | Image correcting device and method, image correction database creating method, information data providing device, image processing device, information terminal, and information database device |
| CN104778589A (en) * | 2015-03-24 | 2015-07-15 | 立德高科(北京)数码科技有限责任公司 | Method and device for binding data in combination-type anti-fake label |
| CN105141409A (en) * | 2015-08-12 | 2015-12-09 | 深圳市联软科技有限公司 | Method, terminal and server for realizing screen digital watermarks |
| CN105306479A (en) * | 2015-11-11 | 2016-02-03 | 江苏中威科技软件系统有限公司 | Computer data embedding method, computer data displaying method and computer data embedding and displaying device |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110120003A (en) * | 2018-02-07 | 2019-08-13 | 上海诺亚投资管理有限公司 | A kind of method and system of the acquisition with watermark webpage |
| CN110120003B (en) * | 2018-02-07 | 2023-01-20 | 上海诺亚投资管理有限公司 | Method and system for acquiring webpage with watermark |
| CN110322385B (en) * | 2018-03-28 | 2021-08-24 | 浙江大学 | Watermark embedding and extracting method and device and electronic equipment |
| CN110322385A (en) * | 2018-03-28 | 2019-10-11 | 浙江大学 | Watermark insertion and extracting method, device and electronic equipment |
| CN109146759A (en) * | 2018-07-23 | 2019-01-04 | 深圳市联软科技股份有限公司 | A kind of forming method, device, medium and the equipment of figure watermark |
| WO2020019957A1 (en) * | 2018-07-23 | 2020-01-30 | 深圳市联软科技股份有限公司 | Method for forming graphic watermark, apparatus, medium and device |
| CN109767375A (en) * | 2018-12-06 | 2019-05-17 | 北京北信源信息安全技术有限公司 | The method and system of image watermark insertion and retrospect |
| CN109767375B (en) * | 2018-12-06 | 2022-12-13 | 北京北信源信息安全技术有限公司 | Image watermark embedding and tracing method and system |
| CN109801205A (en) * | 2018-12-21 | 2019-05-24 | 苏宁易购集团股份有限公司 | A kind of implicit watermark adding method and device traced to the source |
| CN111415169A (en) * | 2019-01-04 | 2020-07-14 | 广州哨马智能装备科技有限公司 | Method and system for safely transferring products |
| CN110148100A (en) * | 2019-05-10 | 2019-08-20 | 腾讯科技（深圳）有限公司 | A kind of image conversion method, device, storage medium and computer equipment |
| US11908038B2 (en) | 2019-05-10 | 2024-02-20 | Tencent Technology (Shenzhen) Company Limited | Image transformation method and apparatus, storage medium, and computer device |
| CN110428356A (en) * | 2019-07-22 | 2019-11-08 | 中孚安全技术有限公司 | A kind of dark watermark source tracing method of papery printout, system, terminal and storage medium |
| CN110838083A (en) * | 2019-11-11 | 2020-02-25 | 闻泰通讯股份有限公司 | Watermark adding method, device, equipment and storage medium |
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| CN113139163B (en) * | 2021-04-15 | 2023-05-26 | 上海上讯信息技术股份有限公司 | Method and device for generating watermark information on application program interface |
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| CN117173000A (en) * | 2023-09-08 | 2023-12-05 | 广州市科帕电子科技有限公司 | Information hiding method and system based on quaternary coding |
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