CN112464177B - Watermark full-coverage method and device - Google Patents
Watermark full-coverage method and device Download PDFInfo
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- CN112464177B CN112464177B CN201910839602.9A CN201910839602A CN112464177B CN 112464177 B CN112464177 B CN 112464177B CN 201910839602 A CN201910839602 A CN 201910839602A CN 112464177 B CN112464177 B CN 112464177B
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- 238000000034 method Methods 0.000 title claims abstract description 40
- 230000003068 static effect Effects 0.000 claims description 11
- 238000012423 maintenance Methods 0.000 claims description 9
- 238000005516 engineering process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 1
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Classifications
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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
- 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]
- G06F21/106—Enforcing content protection by specific content processing
- G06F21/1063—Personalisation
Abstract
The application discloses a watermark full-coverage method and device. A watermark full coverage method, comprising: when the user terminal receives the watermark configuration instruction, a preset system layer watermark generation interface is called, and the current dynamic watermark data file is maintained; the system layer watermark generation interface is used for generating a watermark configuration instruction according to the watermark configuration instruction; when the dynamic watermark data file is updated, the user terminal draws the watermark on the display screen by using the updated dynamic watermark data file. By applying the technical scheme disclosed by the application, the watermark can be displayed under various use scenes of the terminal, and the dynamic configuration of the watermark by a user can be realized.
Description
Technical Field
The application relates to the technical field of computer application, in particular to a watermark full-coverage method and device.
Background
The security terminals are mainly faced by special customer groups such as public security, prisons, electric power and the like. The customers have higher standards on the safety and stability of the mobile phones, and meanwhile, special requirements which are not used by common customers are also provided. One key requirement involved in this is: the watermark is fully covered. Specifically, when a user uses a mobile phone, the uppermost layer of the mobile phone display interface displays a watermark no matter what mobile phone use scene, so that when any secret information flows out, the user can know which mobile phone the information flows out from according to the watermark, and the method comprises, but is not limited to, screen capturing, photographing the mobile phone by other equipment and the like.
Applicant found that existing watermarking techniques exist in the process of implementing the present application: the problem that the watermark full coverage requirement cannot be met or the user cannot dynamically configure the watermark according to the requirement is solved as follows:
at present, two watermarking technologies are applied to mobile phones, one is application-level watermarking, and the other is google original watermarking technology.
The application-level watermark is generally applied to camera application software of an Android system, the watermark technology can only be used in a camera APP, the watermark cannot be displayed when the camera APP is away from the camera APP, and particularly cannot be displayed on a screen locking interface, and therefore, the application-level watermark is limited to a certain application, so that the watermark full coverage requirement cannot be met.
The google original watermark technology can be displayed on the whole mobile phone, including a lock screen interface. However, the displayed watermark content can only be watermark data preset in the operating system when the system is started for the first time, and since the watermark data is in a config.
Disclosure of Invention
The application provides a watermark full-coverage method and a watermark full-coverage device, which can display watermarks under various use scenes of a terminal and realize dynamic configuration of the watermarks by a user.
A watermark full coverage method comprising:
when the user terminal receives the watermark configuration instruction, a preset system layer watermark generation interface is called, and the current dynamic watermark data file is maintained; the system layer watermark generation interface is used for generating a watermark configuration instruction according to the watermark configuration instruction;
when the dynamic watermark data file is updated, the user terminal draws the watermark on the display screen by using the updated dynamic watermark data file.
Preferably, the calling the preset system layer watermark generation interface to maintain the current dynamic watermark data file includes:
a. b, judging whether the input parameters accord with preset watermark configuration specifications, and if so, executing the step b; otherwise, terminating the call;
b. determining the type of maintenance according to the incoming parameters;
c. if the maintained type is the function of clearing the watermark, deleting the current dynamic watermark data file;
and if the maintained type is the updated watermark data file, deleting the current dynamic watermark data file, generating a corresponding watermark data file according to the input parameters, and storing the corresponding watermark data file as the dynamic watermark data file.
Preferably, the generating the corresponding watermark data file according to the input parameters includes:
analyzing the input parameters and acquiring corresponding watermark content;
generating a watermark data file in a corresponding format according to the watermark content; and if the watermark content comprises a picture, carrying out serialization processing on a picture format file corresponding to the picture, and taking the obtained serialization data file as a watermark data file corresponding to the picture.
Preferably, the generating the corresponding watermark data file according to the input parameters includes:
analyzing the input parameters and acquiring corresponding watermark content;
generating a watermark data file in a corresponding format according to the watermark content; and if the watermark content contains pictures, carrying out serialization processing on picture format files corresponding to the pictures, converting the obtained serialized data files into picture format files, and taking the converted files as watermark data files corresponding to the pictures.
Preferably, the system layer watermark generation interface is a mobile phone management tool MDM interface, a frame work interface or a service interface.
Preferably, the method further comprises:
when the user terminal is started, detecting whether a dynamic watermark data file exists currently, if so, drawing the watermark on a display screen according to the current dynamic watermark data file, otherwise, drawing the watermark on the display screen according to the static watermark data file in the system.
A watermark full coverage device, comprising: a processor for:
when the user terminal receives the watermark configuration instruction, a preset system layer watermark generation interface is called, and the current dynamic watermark data file is maintained; the system layer watermark generation interface is used for generating a watermark configuration instruction according to the watermark configuration instruction;
when the dynamic watermark data file is updated, the user terminal draws the watermark on the display screen by using the updated dynamic watermark data file.
Preferably, the processor is specifically configured to: invoking a preset system layer watermark generation interface to maintain a current dynamic watermark data file, wherein the method comprises the following steps:
a. b, judging whether the input parameters accord with preset watermark configuration specifications, and if so, executing the step b; otherwise, terminating the call;
b. determining the type of maintenance according to the incoming parameters;
c. if the maintained type is the function of clearing the watermark, deleting the current dynamic watermark data file;
and if the maintained type is the updated watermark data file, deleting the current dynamic watermark data file, generating a corresponding watermark data file according to the input parameters, and storing the corresponding watermark data file as the dynamic watermark data file.
Preferably, the processor is specifically configured to: generating a corresponding watermark data file according to the incoming parameters, including:
analyzing the input parameters and acquiring corresponding watermark content;
generating a watermark data file in a corresponding format according to the watermark content; and if the watermark content comprises a picture, carrying out serialization processing on a picture format file corresponding to the picture, and taking the obtained serialization data file as a watermark data file corresponding to the picture.
Preferably, the processor is specifically configured to: generating a corresponding watermark data file according to the incoming parameters, including:
analyzing the input parameters and acquiring corresponding watermark content;
generating a watermark data file in a corresponding format according to the watermark content; and if the watermark content contains pictures, carrying out serialization processing on picture format files corresponding to the pictures, converting the obtained serialized data files into picture format files, and taking the converted files as watermark data files corresponding to the pictures.
Preferably, the system layer watermark generation interface includes: the mobile phone management tool MDM interface.
Preferably, the processor is further configured to detect whether a dynamic watermark data file exists in a current system file when the user terminal is powered on, if so, draw a watermark on the display screen according to the current dynamic watermark data file, otherwise, draw a watermark on the display screen according to the static watermark data file in the system.
The application also discloses a non-transitory computer readable storage medium storing instructions which, when executed by a processor, cause the processor to perform the steps of the watermark full coverage method as described above.
The application also discloses an electronic device comprising the non-volatile computer readable storage medium as described above, and the processor having access to the non-volatile computer readable storage medium.
According to the technical scheme, in the watermark full-coverage method and device provided by the application, the current dynamic watermark data file is maintained by utilizing the watermark generation interface of the preset system layer, so that the terminal can generate the corresponding dynamic watermark data file which can be accessed by the system according to the dynamic watermark configuration instruction of the user. And when the dynamic watermark data file is updated, watermark drawing is performed according to the updated dynamic watermark data file, so that the following implementation can be realized: the watermark may be displayed in dynamic configuration by the user and in various use scenarios of the terminal.
Drawings
FIG. 1 is a schematic flow chart of a method according to an embodiment of the application;
fig. 2 to fig. 4 are schematic diagrams showing watermarks according to embodiments of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail below by referring to the accompanying drawings and examples.
Fig. 1 is a schematic flow chart of a watermark full coverage method according to an embodiment of the application, as shown in fig. 1, the method mainly includes:
and step 101, when the user terminal receives a watermark configuration instruction, a preset system layer watermark generation interface is called, and the current dynamic watermark data file is maintained.
The system layer watermark generation interface is used for generating a watermark configuration instruction, wherein the input parameters of the system layer watermark generation interface are watermark configuration parameters indicated by the watermark configuration instruction.
It should be noted that, in consideration of the fact that in the existing operating system (such as the android system) of the terminal device, in order to ensure the security of the system, the system file directory is isolated from the application layer file directory accessible to the user in terms of access rights, so that the user cannot directly modify the watermark data file in the system. In this way, no matter what application scenario the terminal is in, the terminal operating system can perform watermark drawing according to the watermark data file (i.e. the dynamic watermark data file) dynamically configured by the user, so that the implementation can be realized: the user can dynamically configure the watermark according to the needs, and the watermark effect can be displayed at the uppermost layer of the display interface under various terminal use scenes.
The system layer watermark generation interface is a preset system layer interface so as to ensure that watermark data files generated according to watermark configuration instructions are files which can be accessed by a terminal operating system. Preferably, the system layer watermark generation interface may be a mobile phone management tool MDM interface, a frame work interface or a service interface, but is not limited thereto, as long as it is a system layer interface.
In practical application, the dynamic watermark data file may be stored in a specially defined system file directory, or may share the same system file directory with the static watermark data file of the system.
In this step, the specific method for receiving the watermark configuration instruction by the terminal may be implemented by using an existing method, which is not described herein.
Preferably, in order to increase the flexibility of maintenance of the dynamically generated watermark data file, said maintenance in this step may comprise the cleaning and updating of the dynamically generated watermark data file. Specifically, the following method may be adopted to call a preset system layer watermark generation interface to maintain the current dynamic watermark data file:
step a, judging whether the input parameters accord with preset watermark configuration specifications, if so, executing step b; otherwise, the call is terminated.
In this step, the specific setting of the watermark configuration specification may be set by those skilled in the art according to actual needs, so long as the system layer watermark generation interface can ensure that the current dynamic watermark data file can be correctly maintained according to the input parameters (for example, the input parameters need to be complete to support drawing of a watermark), and ensure the security of the dynamic watermark data file.
And b, determining the maintenance type according to the input parameters.
C, if the maintained type is a clear watermark function, deleting the current dynamic watermark data file; and if the maintained type is the updated watermark data file, deleting the current dynamic watermark data file, generating a corresponding watermark data file according to the input parameters, and storing the corresponding watermark data file as the dynamic watermark data file.
Preferably, in order to enrich the displayable content of the watermark, the watermark content of the picture type is added, so that the display of the watermark is not limited to the text and the number, and the generation of the corresponding watermark data file according to the input parameters in the above method can be realized by adopting the following method:
analyzing the input parameters and acquiring corresponding watermark content;
generating a watermark data file in a corresponding format according to the watermark content; and if the watermark content comprises a picture, carrying out serialization processing on a picture format file corresponding to the picture, and taking the obtained serialization data file as a watermark data file corresponding to the picture.
In practical applications, when the watermark content includes text, digital, etc., the watermark data file in the corresponding format may be implemented by using a method that is still available, but for the picture, serialization processing is required.
It should be noted that, in the above method, considering that, as described above, the system file directory and the application layer file directory accessible to the user are isolated in terms of access rights, only the user file of the basic data type can pass through the operating system and be used by the system file, so, for the user file of the picture format, the system layer watermark generation interface cannot directly store the user file of the picture format in the system file of the picture format.
Further, in order to facilitate maintenance of system developers, after the picture format file corresponding to the picture is subjected to serialization processing in the method, the obtained serialized data file can be converted into the picture format file and then stored, so that the visual effect of the picture file is improved. For this purpose, the following method may be specifically adopted to generate the corresponding watermark data file according to the input parameters:
analyzing the input parameters and acquiring corresponding watermark content;
generating a watermark data file in a corresponding format according to the watermark content; and if the watermark content contains pictures, carrying out serialization processing on picture format files corresponding to the pictures, converting the obtained serialized data files into picture format files, and taking the converted files as watermark data files corresponding to the pictures.
In practical application, in order to improve the generation efficiency of the watermark data file containing the pictures, the pictures indicated in the watermark configuration instruction may also be static pictures preset in the system file directory, and the system may inform the user of the preset picture identifications through a static picture index text file, where the user indicates the watermark generation identifications in the watermark configuration instruction. Therefore, when the watermark is generated for the pictures, the system can directly acquire corresponding static pictures according to the indicated picture identifications, and therefore, the efficiency of dynamically configuring the watermark can be improved because the pictures do not need to be subjected to serialization processing.
Step 102, when the dynamic watermark data file is updated, the user terminal draws the watermark on the display screen by using the updated dynamic watermark data file.
In this step, if the dynamic watermark data file is updated in step 101, that is, replaced by a new watermark data file, watermark drawing needs to be performed by using the new watermark data file, so as to achieve the effect of displaying the dynamic configuration watermark in real time.
In practical application, the watermark is drawn on the display screen based on the watermark data file, which can be implemented by adopting an existing method, for example, for an android system, watermark content can be drawn through canvas, wherein characters are realized through a drawtext, and pictures are realized through a drawBitmap, which is not described in detail.
Further, in order to increase the full-coverage effect of the watermark, the method meets the requirement of dynamic configuration of the watermark of a user, is compatible with the existing static watermark implementation scheme, can preferentially select to draw the watermark according to the dynamic watermark data file after the terminal is started, and can be realized by adopting the following method:
when the user terminal is started, detecting whether a dynamic watermark data file exists currently, if so, drawing the watermark on a display screen according to the current dynamic watermark data file, otherwise, drawing the watermark on the display screen according to the static watermark data file in the system.
Furthermore, in order to improve the efficiency of watermark drawing, when the user terminal is started, the watermark data file for drawing the watermark can be read out from the corresponding system file directory and stored in the cache, so that the watermark can be directly obtained from the cache when the watermark is drawn, the watermark display time delay can be shortened, and the watermark can be displayed on the terminal screen more quickly.
According to the embodiment of the method, the dynamic configuration of the watermark and the full coverage of the watermark can be realized by adopting the scheme. Fig. 2 to 4 show watermark display schematic diagrams of embodiments of the present application, and it can be seen from the diagrams that, by adopting the embodiments of the present application, the display content of the watermark can be dynamically set, and the display content is not limited to simple words and numbers, can be pictures, and is not limited to being usable only under a certain APP use scenario.
Corresponding to the method embodiment, the application also provides an embodiment of the watermark full coverage device, which comprises the following steps: a processor for:
when the user terminal receives the watermark configuration instruction, a preset system layer watermark generation interface is called, and the current dynamic watermark data file is maintained; the system layer watermark generation interface is used for generating a watermark configuration instruction according to the watermark configuration instruction;
when the dynamic watermark data file is updated, the user terminal draws the watermark on the display screen by using the updated dynamic watermark data file.
Preferably, the processor is specifically configured to: invoking a preset system layer watermark generation interface to maintain a current dynamic watermark data file, wherein the method comprises the following steps:
a. b, judging whether the input parameters accord with preset watermark configuration specifications, and if so, executing the step b; otherwise, terminating the call;
b. determining the type of maintenance according to the incoming parameters;
c. if the maintained type is the function of clearing the watermark, deleting the current dynamic watermark data file;
and if the maintained type is the updated watermark data file, deleting the current dynamic watermark data file, generating a corresponding watermark data file according to the input parameters, and storing the corresponding watermark data file as the dynamic watermark data file.
Preferably, the processor is specifically configured to: generating a corresponding watermark data file according to the incoming parameters, including:
analyzing the input parameters and acquiring corresponding watermark content;
generating a watermark data file in a corresponding format according to the watermark content; and if the watermark content comprises a picture, carrying out serialization processing on a picture format file corresponding to the picture, and taking the obtained serialization data file as a watermark data file corresponding to the picture.
Preferably, the processor is specifically configured to: generating a corresponding watermark data file according to the incoming parameters, including:
analyzing the input parameters and acquiring corresponding watermark content;
generating a watermark data file in a corresponding format according to the watermark content; and if the watermark content contains pictures, carrying out serialization processing on picture format files corresponding to the pictures, converting the obtained serialized data files into picture format files, and taking the converted files as watermark data files corresponding to the pictures.
Preferably, the system layer watermark generation interface includes: the mobile phone management tool MDM interface.
Preferably, the processor is further configured to detect whether a dynamic watermark data file exists in a current system file when the user terminal is powered on, if so, draw a watermark on the display screen according to the current dynamic watermark data file, otherwise, draw a watermark on the display screen according to the static watermark data file in the system.
Furthermore, the present application provides a non-transitory computer readable storage medium storing instructions which, when executed by a processor, cause the processor to perform the steps of the watermark full coverage method as described above.
Furthermore, the application provides an electronic device comprising the non-volatile computer readable storage medium as described above, and the processor having access to the non-volatile computer readable storage medium.
The foregoing description of the preferred embodiments of the application is not intended to be limiting, but rather to enable any modification, equivalent replacement, improvement or the like to be made within the spirit and principles of the application.
Claims (12)
1. A watermark full coverage method, comprising:
when the user terminal receives a watermark configuration instruction of a user, a preset system layer watermark generation interface is called, and a current dynamic watermark data file is maintained; the system layer watermark generation interface is used for generating a watermark configuration instruction according to the watermark configuration instruction; when the maintained type is an updated watermark data file, the watermark configuration parameters comprise watermark content; the dynamic watermark data file is stored in a system file directory;
when the dynamic watermark data file is updated, the user terminal draws a watermark on a display screen by using the updated dynamic watermark data file;
the calling the preset system layer watermark generation interface to maintain the current dynamic watermark data file comprises the following steps:
a. b, judging whether the input parameters accord with preset watermark configuration specifications, and if so, executing the step b; otherwise, terminating the call;
b. determining the type of maintenance according to the incoming parameters;
c. if the maintained type is the function of clearing the watermark, deleting the current dynamic watermark data file;
and if the maintained type is the updated watermark data file, deleting the current dynamic watermark data file, generating a corresponding watermark data file according to the input parameters, and storing the corresponding watermark data file as the dynamic watermark data file.
2. The method of claim 1, wherein the generating the corresponding watermark data file in accordance with the incoming parameters comprises:
analyzing the input parameters and acquiring corresponding watermark content;
generating a watermark data file in a corresponding format according to the watermark content; and if the watermark content comprises a picture, carrying out serialization processing on a picture format file corresponding to the picture, and taking the obtained serialization data file as a watermark data file corresponding to the picture.
3. The method of claim 1, wherein the generating the corresponding watermark data file in accordance with the incoming parameters comprises:
analyzing the input parameters and acquiring corresponding watermark content;
generating a watermark data file in a corresponding format according to the watermark content; and if the watermark content contains pictures, carrying out serialization processing on picture format files corresponding to the pictures, converting the obtained serialized data files into picture format files, and taking the converted files as watermark data files corresponding to the pictures.
4. The method of claim 1, wherein the system layer watermark generation interface is a handset management tool MDM interface, a frame work interface, or a service interface.
5. The method of claim 1, wherein the method further comprises:
when the user terminal is started, detecting whether a dynamic watermark data file exists currently, if so, drawing the watermark on a display screen according to the current dynamic watermark data file, otherwise, drawing the watermark on the display screen according to the static watermark data file in the system.
6. A watermark full-coverage device, comprising: a processor for:
when the user terminal receives a watermark configuration instruction of a user, a preset system layer watermark generation interface is called, and a current dynamic watermark data file is maintained; the system layer watermark generation interface is used for generating a watermark configuration instruction according to the watermark configuration instruction; when the maintained type is an updated watermark data file, the watermark configuration parameters comprise watermark content; the dynamic watermark data file is stored in a system file directory;
when the dynamic watermark data file is updated, the user terminal draws a watermark on a display screen by using the updated dynamic watermark data file;
the step of calling a preset system layer watermark generation interface to maintain a current dynamic watermark data file comprises the following steps:
a. b, judging whether the input parameters accord with preset watermark configuration specifications, and if so, executing the step b; otherwise, terminating the call;
b. determining the type of maintenance according to the incoming parameters;
c. if the maintained type is the function of clearing the watermark, deleting the current dynamic watermark data file;
and if the maintained type is the updated watermark data file, deleting the current dynamic watermark data file, generating a corresponding watermark data file according to the input parameters, and storing the corresponding watermark data file as the dynamic watermark data file.
7. The apparatus of claim 6, wherein the processor is specifically configured to: generating a corresponding watermark data file according to the incoming parameters, including:
analyzing the input parameters and acquiring corresponding watermark content;
generating a watermark data file in a corresponding format according to the watermark content; and if the watermark content comprises a picture, carrying out serialization processing on a picture format file corresponding to the picture, and taking the obtained serialization data file as a watermark data file corresponding to the picture.
8. The apparatus of claim 6, wherein the processor is specifically configured to: generating a corresponding watermark data file according to the incoming parameters, including:
analyzing the input parameters and acquiring corresponding watermark content;
generating a watermark data file in a corresponding format according to the watermark content; and if the watermark content contains pictures, carrying out serialization processing on picture format files corresponding to the pictures, converting the obtained serialized data files into picture format files, and taking the converted files as watermark data files corresponding to the pictures.
9. The apparatus of claim 6, wherein the system layer watermark generation interface comprises: the mobile phone management tool MDM interface.
10. The apparatus of claim 6, wherein the processor is further configured to detect whether a dynamic watermark data file exists in a current system file when the user terminal is powered on, and if so, to render a watermark on the display screen based on the current dynamic watermark data file, and otherwise, to render a watermark on the display screen based on a static watermark data file in the system.
11. A non-transitory computer-readable storage medium storing instructions that, when executed by a processor, cause the processor to perform the steps of the watermark full overlay method of any one of claims 1 to 5.
12. An electronic device comprising the non-volatile computer-readable storage medium of claim 11, and the processor having access to the non-volatile computer-readable storage medium.
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