WO2019201077A1

WO2019201077A1 - Method, system, and apparatus for generating watermark only in secret-related area, and medium

Info

Publication number: WO2019201077A1
Application number: PCT/CN2019/080492
Authority: WO
Inventors: 张双峻; 何华荣; 王志
Original assignee: 深圳市联软科技股份有限公司
Priority date: 2018-04-16
Filing date: 2019-03-29
Publication date: 2019-10-24
Also published as: CN108563929A

Abstract

A method, system, and apparatus for generating a watermark only in a secret-related area, and a medium, said method comprising the following steps: acquiring file information of a file displayed on a terminal screen window, and determining a file type according to the file information (S1); if the file type is a secret-related file, determining a secret-related display area of the window of the secret-related file on the terminal screen window (S2); and adding a watermark to the secret-related display area (S3). In the present method, a corresponding watermark can be added only in a secret-related display area of a secret-related file according to a change in the window of the secret-related file, requiring simple operation, and not affecting user's reading.

Description

Method, system, device and medium for generating watermark only in dense area

Technical field

The invention belongs to the technical field of information processing, and in particular relates to a method, a system, a device and a medium for generating a watermark only in a dense area.

Background technique

With the development and advancement of information technology, in order to protect the property rights of digital media files, digital watermark technology emerged as the times require and has developed rapidly. Under the prior art, the digital watermarking technology is a technology for directly embedding watermark information into a text carrier, and this technology does not affect the use value of the original carrier.

Nowadays, the method of generating the watermark generally generates a watermark on a specific area of the display screen, or embeds the watermark into the file. It is not very good to generate a watermark in a specific area of the display screen, because the user may move the file to an area without a watermark, and if the watermark is displayed full screen, it will affect the user's reading. Embedding the watermark into the file requires active operation or early operation, and the operation is cumbersome.

Summary of the invention

In view of the deficiencies in the prior art, the present invention provides a method, system, device and medium for generating a watermark only in a dense area, and the present invention can only change the confidentiality of a confidential document according to a form change of a confidential document. The corresponding watermark is added to the display area, which is easy to operate and does not affect the user's reading.

In a first aspect, the present invention provides a method of generating a watermark only in a dense area, comprising the following steps:

Obtaining file information of a file displayed on a screen of the terminal screen, and determining a file type according to the file information;

If the file type is a confidential file, determine the confidential display area of the form of the confidential file on the terminal screen window;

Add a watermark to the dense display area.

Preferably, the file type includes a confidential file and a normal file.

Preferably, the determining the file type according to the file information is specifically:

Obtaining the name information of the file or the document information in the file according to the file information;

If the name information contains a keyword of an encrypted file, or the document information contains a sensitive keyword, the file is a confidential file, otherwise it is an ordinary file.

Preferably, the determined display area of the form of the confidential file on the terminal screen window is specifically:

The message hook set by SetWindowsHookEx, when the size and position of the form displayed on the terminal screen window changes, the message hook receives the form change notification;

After receiving the form change notification, the size and coordinate range of each form displayed on the terminal screen window from the top to the bottom are calculated by the display order of the form, thereby obtaining the form of the confidential file on the terminal screen window. Classified display area.

In a second aspect, the present invention provides a system for generating a watermark only in a dense area, and is applicable to a method for generating a watermark only in a dense area according to the first aspect, including:

a file type determining unit, configured to acquire file information of a file displayed on a screen of the terminal screen, and determine a file type according to the file information;

a confidential area determining unit, configured to determine a confidential display area of the form of the classified file on the terminal screen window if the file type is a confidential file;

A watermark adding unit for adding a watermark to the confidential display area.

Preferably, the file type includes a confidential file and a normal file.

In a third aspect, the present invention provides an apparatus for generating a watermark only in a secret area, including a processor, an input device, an output device, and a memory, wherein the processor, the input device, the output device, and the memory are connected to each other, wherein The memory is for storing a computer program, the computer program comprising program instructions, the processor being configured to invoke the program instructions to perform the method of the first aspect.

In a fourth aspect, the present invention provides a computer readable storage medium storing a computer program, the computer program comprising program instructions, the program instructions, when executed by a processor, causing the processor to execute The method of the first aspect.

The invention has the beneficial effects that the invention can change the form according to the confidentiality file, and only adds the corresponding watermark in the confidential display area of the classified file, which is simple in operation and does not affect the user's reading.

DRAWINGS

In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings to be used in the specific embodiments or the description of the prior art will be briefly described below. In all the figures, like elements or parts are generally identified by like reference numerals. In the figures, elements or parts are not necessarily drawn to scale.

FIG. 1 is a flowchart of a method for generating a watermark only in a dense area in the embodiment;

2 is a schematic diagram showing a Word file and a txt file displayed on a window in the embodiment;

3 is a structural diagram of a system for generating a watermark only in a dense area in the embodiment;

4 is a block diagram of a device for generating a watermark only in a dense area in the embodiment.

detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are a part of the embodiments of the present invention, but not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

The use of the terms "comprising", "comprising", "","," The presence or addition of a plurality of other features, integers, steps, operations, elements, components, and/or collections thereof.

It is also to be understood that the terminology of the present invention is to be construed as a The singular forms "", ",",,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,

In particular implementations, the terminals described in this embodiment of the invention include, but are not limited to, other portable devices such as mobile phones, laptop computers or tablet computers having touch sensitive surfaces (eg, touch screen displays and/or touch pads). It should also be understood that in some embodiments, the device is not a portable communication device, but a desktop computer having a touch sensitive surface (eg, a touch screen display and/or a touch pad).

Embodiment 1:

This embodiment provides a method for generating a watermark only in a dense area, as shown in FIG. 1, including the following steps:

S1: Obtain file information of a file displayed on a screen of the terminal screen, and determine a file type according to the file information. The file type includes a confidential file and a common file, and the file type is determined according to the file information, as described in step S1, specifically:

The terminal screen window in this embodiment includes, but is not limited to, a screen window of a mobile phone, a computer, and other fixed or mobile terminals. Before performing the method involved in the embodiment, the user may also mount the terminal on the terminal. The APP authenticates and registers, and obtains the APPID and APPKEY; the late user can log in to the software by using the APPID and APPKEY. When the user needs to browse or read a certain information, after logging in the software, the information input interface can be edited and input into the relevant information input interface and then sent to the watermark generating device, and the watermark generating device can be one. The server or the server cluster; the information reading request includes but is not limited to the name information of the file or the document information in the file, and the document information includes text, image, and the like. If the name information contains a keyword of an encrypted file, or the document information contains a sensitive keyword, the file is a confidential file, otherwise it is an ordinary file.

In this embodiment, the user can also input a webpage link through the browser in the terminal, and then open the webpage page, edit and input the information reading request on the information input interface of the webpage, and then send the information to the device for generating the watermark. It should be noted that the operation of the user on the browser and the device for generating the watermark are similar to those of the foregoing embodiment, and are not described herein again.

S2. If the file type is a confidential file, determine the confidential display area of the form of the classified file on the terminal screen window. This step S2 is specifically:

The message hook of SetWindowsHookEx in this embodiment is a platform of the Windows message processing mechanism, and the application can set a subroutine to monitor a certain message of the specified window, and the monitored window can be created by other processes. The hook mechanism allows the application to intercept window messages or specific events. For example, the user opens a Word file and a txt file, and the Word file is a confidential file through a step S1, and a txt file is a normal file. The user displays the small form on the terminal screen window, and the message hook is obtained by the user. Reduce the form change notification of the form, as shown in Figure 2, for the Word file and the txt file to display the schematic on the window.

When Windows displays a form, it has a z-order. The display sorting method can be divided into a cascading display, a stacked display, and a side-by-side display. As shown in FIG. 2, a cascading display includes two layers of display, and the top layer displays a txt file, and the bottom layer displays For the Word file, calculate the size and coordinate range of the two forms, and get the form of the Word file in the confidential display area on the window (the display area of the Word file minus the area occluded by the txt file, that is, the secret Display area).

S3, adding a watermark to the confidential display area.

The watermark of this embodiment includes a digital watermark, a vector image or other types of watermarks. The digital watermark has the advantages that the method of generating is simple and fast, and can be embedded in the confidential area of the corresponding information in a short time, thereby reducing the waiting time of the user. Improve the efficiency of watermarking; the advantage of vector graphics compared to bitmaps is that the user will not be distorted after the user has enlarged the corresponding information to be read many times on the client's screen. For multiple pixels.

In the method of the embodiment, compared with the traditional way of adding a watermark to the entire document, according to the form change of the classified file, the corresponding watermark is added only in the confidential display area of the classified file, and the confidential display area changes. The watermark also changes. The method of the embodiment is simple in operation, which not only ensures the security of the confidential information, realizes the anti-counterfeiting source, protects the copyright, but also does not affect the user's reading, and can make the user more comfortable to read outside the secret area. The content enhances the user's experience and enhances the usability of the present invention.

Embodiment 2:

The embodiment provides a system for generating a watermark only in a dense area, and is applicable to a method for generating a watermark only in a dense area according to the first embodiment. As shown in FIG. 3, the file type determining unit includes Secret area determination unit, watermark addition unit, etc.:

The file type determining unit is configured to acquire file information of a file displayed on a screen of the terminal screen, and determine a file type according to the file information. The determining the file type according to the file information, specifically:

The confidential area determining unit is configured to determine a confidential display area of the form of the classified file on the terminal screen window if the file type is a confidential file. This unit is specifically used to:

The message hook of SetWindowsHookEx in this embodiment is a platform of the Windows message processing mechanism, and the application can set a subroutine to monitor a certain message of the specified window, and the monitored window can be created by other processes. The hook mechanism allows the application to intercept processing window messages or specific events. For example, the user opens a Word file and a txt file, and the Word file is a confidential file through a step S1, and a txt file is a normal file. The user displays the small form on the terminal screen window, and the message hook is obtained by the user. Reduce the form change notification of the form, as shown in Figure 2, for the Word file and the txt file to display the schematic on the window.

The watermark adding unit is configured to add a watermark to the confidential display area.

In the system of this embodiment, compared with the traditional method of adding a watermark to a document, according to the form change of the confidential file, only the corresponding watermark is added in the confidential display area of the classified file, and the confidential display area changes. The watermark also changes. The method of the embodiment is simple in operation, which not only ensures the security of the confidential information, realizes the anti-counterfeiting source, protects the copyright, but also does not affect the user's reading, and can make the user more comfortable to read outside the secret area. The content enhances the user's experience and enhances the usability of the present invention.

Embodiment 3:

The present embodiment provides an apparatus for generating a watermark only in a secret area, as shown in FIG. 4, including a processor 42, an input device 41, an output device 44, and a memory 43, the processor 42, the input device 41, and the output. Device 44 and memory 43 are interconnected by a communication bus 40, wherein said memory 43 is for storing a computer program, said computer program comprising program instructions, said processor 42 being configured to invoke said program instructions, to perform an implementation Said method.

It should be understood that in the embodiments of the present invention, the so-called memory 43 may include read only memory and random access memory, and provide instructions and data to the processor 42. A portion of the memory 43 may also include a non-volatile random access memory. For example, the memory 43 can also store related information of the device type.

The processor 42 is operative to execute or execute an operating system, various software programs, and its own set of instructions stored in the internal memory 43, and to process data received from the touch input device or from other external input paths and Instructions to implement various functions. Processor 42 may include, but is not limited to, a central processing unit (CPU), a general purpose image processor (GPU), a microprocessor (MCU), a digital signal processor (DSP), a field programmable logic gate array (FPGA), application specific One or more of an integrated circuit (ASIC). In some embodiments, processor 42 and memory controller 104 can be implemented on a single chip. In some other implementations, they can be implemented on separate chips from each other.

The input device 41 may be a camera (CAMERA or WEBCAM), etc., and the camera is also called a computer camera, a computer eye, an electronic eye, etc., and is a video driving device, and a touch input device such as a numeric keyboard or a mechanical keyboard; the output device 44 may include a display or the like.

In a specific implementation, the processor 42 and the input device 41 and the output device 44 described in the embodiment of the present invention may be implemented in the embodiment of the first embodiment, and details are not described herein again.

In the device of the embodiment, compared with the traditional method of adding a watermark to the entire document, according to the form change of the classified file, the corresponding watermark is added only in the confidential display area of the classified file, and the confidential display area changes. The watermark also changes. The method of the embodiment is simple in operation, which not only ensures the security of the confidential information, realizes the anti-counterfeiting source, protects the copyright, but also does not affect the user's reading, and can make the user more comfortable to read outside the secret area. The content enhances the user's experience and enhances the usability of the present invention.

Embodiment 4:

The embodiment provides a computer readable storage medium, the computer storage medium storing a computer program, the computer program comprising program instructions, when the program instructions are executed by the processor, causing the processor to execute the first embodiment Said method.

Specifically, the computer readable storage medium may include a cache, a high speed random access memory (RAM), such as a common double data rate synchronous dynamic random access memory (DDR SDRAM), and may also include non-easy Loss of memory (NVRAM), such as one or more read only memory (ROM), disk storage devices, flash memory devices, or other non-volatile solid state memory devices such as compact discs (CD-ROM, DVD-ROM) , floppy disk or data tape, etc.

The computer readable storage medium provided by the embodiment, when executed by the processor, implements a change according to a form of the confidential file, and only adds a corresponding watermark in the confidential display area of the confidential file, and the confidential display area changes. The watermark also changes. The method of the embodiment is simple in operation, which not only ensures the security of the confidential information, realizes the anti-counterfeiting source, protects the copyright, but also does not affect the user's reading, and can make the user more comfortable to read outside the secret area. The content enhances the user's experience and enhances the usability of the present invention.

Those of ordinary skill in the art will appreciate that the elements and method steps of the various examples described in connection with the embodiments disclosed herein can be implemented in electronic hardware, computer software or a combination of both, in order to clearly illustrate hardware and software. Interchangeability, the composition and steps of the various examples have been generally described in terms of function in the above description. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods for implementing the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present invention.

In the several embodiments provided herein, it should be understood that the described systems and methods can be implemented in other ways. For example, the system embodiment described above is merely illustrative. For example, the division of the unit is only a logical function division, and the actual implementation may have another division manner, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.

Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, and are not intended to be limiting; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that The technical solutions described in the foregoing embodiments may be modified, or some or all of the technical features may be equivalently replaced; and the modifications or substitutions do not deviate from the technical solutions of the embodiments of the present invention. The scope is intended to be included within the scope of the claims and the description of the invention.

Claims

A method for generating a watermark only in a confidential area, comprising the steps of:

Obtaining file information of a file displayed on a screen of the terminal screen, and determining a file type according to the file information;

If the file type is a confidential file, determine the confidential display area of the form of the confidential file on the terminal screen window;

Add a watermark to the dense display area.
A method for generating a watermark only in a dense area according to claim 1, wherein the file type comprises a confidential file and a normal file.
The method for generating a watermark only in a dense area according to claim 2, wherein the determining the file type according to the file information is specifically:

Obtaining the name information of the file or the document information in the file according to the file information;

If the name information contains a keyword of an encrypted file, or the document information contains a sensitive keyword, the file is a confidential file, otherwise it is an ordinary file.
The method for generating a watermark only in a dense area according to claim 1, wherein the determined display area of the form of the confidential file on the terminal screen window is specifically:

The message hook set by SetWindowsHookEx, when the size and position of the form displayed on the terminal screen window changes, the message hook receives the form change notification;

After receiving the form change notification, the size and coordinate range of each form displayed on the terminal screen window from the top to the bottom are calculated by the display order of the form, thereby obtaining the form of the confidential file on the terminal screen window. Classified display area.
A system for generating a watermark only in a dense area, characterized in that it is applicable to a method for generating a watermark only in a dense area according to any one of claims 1 to 4, comprising:

a file type determining unit, configured to acquire file information of a file displayed on a screen of the terminal screen, and determine a file type according to the file information;

a confidential area determining unit, configured to determine a confidential display area of the form of the classified file on the terminal screen window if the file type is a confidential file;

A watermark adding unit for adding a watermark to the confidential display area.
A system for generating a watermark only in a dense area according to claim 5, wherein the file type comprises a confidential file and a normal file.
The system for generating a watermark only in a dense area according to claim 6, wherein the determining the file type according to the file information is specifically:

Obtaining the name information of the file or the document information in the file according to the file information;

If the name information contains a keyword of an encrypted file, or the document information contains a sensitive keyword, the file is a confidential file, otherwise it is an ordinary file.
The system for generating a watermark only in a dense area according to claim 5, wherein the determined display area of the form of the confidential file on the terminal screen window is specifically:

The message hook set by SetWindowsHookEx, when the size and position of the form displayed on the terminal screen window changes, the message hook receives the form change notification;

After receiving the form change notification, the size and coordinate range of each form displayed on the terminal screen window from the top to the bottom are calculated by the display order of the form, thereby obtaining the form of the confidential file on the terminal screen window. Classified display area.
An apparatus for generating a watermark only in a secret area, comprising: a processor, an input device, an output device, and a memory, wherein the processor, the input device, the output device, and the memory are connected to each other, wherein the memory is used for A computer program is stored, the computer program comprising program instructions, the processor being configured to invoke the program instructions to perform the method of any of claims 1-4.
A computer readable storage medium, characterized in that the computer storage medium stores a computer program, the computer program comprising program instructions, the program instructions, when executed by a processor, causing the processor to execute as claimed in claim 1. The method of any of the preceding claims.