CN110543749A - method and device for adding invisible watermark to client - Google Patents
method and device for adding invisible watermark to client Download PDFInfo
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- CN110543749A CN110543749A CN201910754550.5A CN201910754550A CN110543749A CN 110543749 A CN110543749 A CN 110543749A CN 201910754550 A CN201910754550 A CN 201910754550A CN 110543749 A CN110543749 A CN 110543749A
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- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000012545 processing Methods 0.000 claims abstract description 21
- 230000002194 synthesizing effect Effects 0.000 claims abstract description 15
- 239000007787 solid Substances 0.000 claims abstract description 6
- 238000004590 computer program Methods 0.000 claims description 17
- 230000015572 biosynthetic process Effects 0.000 claims description 8
- 238000003786 synthesis reaction Methods 0.000 claims description 8
- 238000000605 extraction Methods 0.000 claims description 7
- 238000007493 shaping process Methods 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 238000005516 engineering process Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 230000006870 function Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 206010047571 Visual impairment Diseases 0.000 description 1
- 229910002056 binary alloy Inorganic materials 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 208000020016 psychiatric disease Diseases 0.000 description 1
- 238000012954 risk control Methods 0.000 description 1
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
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T1/00—General purpose image data processing
- G06T1/0021—Image watermarking
Abstract
the invention discloses a method for adding an invisible watermark to a client, which comprises the steps of obtaining an invisible watermark processing request sent by a user, user information and a solid picture selected by the user, converting the user information according to the invisible watermark processing request to generate a unique first watermark ID, storing the first watermark ID into a watermark database, synthesizing the first watermark ID and the solid picture to generate an invisible watermark image with the first watermark ID, and finally returning the invisible watermark image to the user so that the user can use the invisible watermark image as the background of the client.
Description
Technical Field
The present invention relates to the field of image processing technologies, and in particular, to a method, an apparatus, a device, and a storage medium for adding an invisible watermark to a client.
background
With the rapid development and rapid popularization of internet technology, more and more people acquire various information by surfing the internet, and a large number of Web page files are published and spread on the internet every second. If these documents are often subject to malicious tampering, and if the author is unable to prove their ownership, then this will have unthinkable consequences, and therefore watermarking techniques are a vital part of information security.
In the existing watermarking technology, in order to protect the data security of clients including Web, H5, and APP and prevent information leakage, an explicit watermark is loaded on a user interface in an application.
The explicit watermark has two disadvantages: firstly, the information of a user interface is disordered, and visual disturbance is caused to the information browsed by a user; secondly, the vigilance of the user is improved, and psychological disorder is caused.
Disclosure of Invention
The embodiment of the invention aims to provide a method for adding an invisible watermark to a client, which solves the problem that a loaded watermark is visible to the naked eye, and can realize information security risk control without destroying original information, influencing interaction and being perceived by people.
In order to achieve the above object, an embodiment of the present invention provides a method for adding an invisible watermark to a client, including the following steps: acquiring an invisible watermarking processing request sent by a user, user information and a pure color picture selected by the user;
converting the user information according to the invisible watermark processing request to generate a unique first watermark ID, and storing the first watermark ID into a watermark database;
Synthesizing the first watermark ID and the pure color picture to generate an invisible watermark with the first watermark ID;
And returning the invisible watermark image to the user for the user to use the invisible watermark image as the background of the client.
Further, the synthesizing the first watermark ID and the solid-color picture to generate the invisible watermark with the first watermark ID specifically includes:
Extracting all pixels of the image synthesized by the first watermark ID and the pure color picture, decomposing each pixel into ARGB four-bit information, and expressing each bit of information by a shaping number of 0-255;
Encoding the first watermark into a string of binary strings and replacing the binary strings with the last digit value of the ARGB value of each pixel of the synthesized image to generate an invisible watermark map with a first watermark ID.
further, after the synthesizing the first watermark ID and the solid-color picture to generate the invisible watermark with the first watermark ID, the method further includes:
and adding a non-binary prefix and suffix to the binary character string in the last digit value of the ARGB value of each pixel of the invisible watermark pattern, so that the recognition program can recognize the binary character string conveniently.
Further, the user information includes user identity information, request time information, request device information, service system information, and interface ID information.
The embodiment of the invention also provides a device for adding the invisible watermark to the client, which comprises the following steps: the device comprises an acquisition module, a conversion module, a synthesis module and a feedback module;
the acquisition module is used for acquiring an invisible watermarking processing request sent by a user, user information and a pure color picture selected by the user;
the conversion module is used for converting the user information according to the invisible watermark processing request, generating a unique first watermark ID and storing the first watermark ID into a watermark database;
The synthesis module is used for synthesizing the first watermark ID and the pure color picture to generate an invisible watermark image with the first watermark ID;
The feedback module is used for returning the invisible watermark to the user so that the user can use the invisible watermark as the background of the client.
further, the synthesis module comprises: a pixel extraction unit and a pixel replacement unit;
the pixel extraction unit is used for extracting all pixels of the image formed by synthesizing the first watermark ID and the pure color picture, decomposing each pixel into ARGB four-bit information, and expressing each bit of information by a shaping number of 0-255;
And the pixel replacement unit is used for encoding the first watermark into a string of binary character strings and replacing the binary character strings with the last digit value of the ARGB value of each pixel of the synthesized image to generate the invisible watermark image with the first watermark ID.
further, the device for adding the invisible watermark to the client further comprises: an identification information adding module;
the identification information adding module is used for adding non-binary suffixes and suffixes to the binary character string in the last digit value of the ARGB value of each pixel of the invisible watermark, so that the identification of a program is facilitated.
Further, the user information includes user identity information, request time information, request device information, service system information, and interface ID information.
The invention further provides a device for adding the invisible watermark to the client, which is a preferred embodiment of the invention and comprises a processor, a memory and a computer program stored in the memory and configured to be executed by the processor, wherein the processor executes the computer program to implement the method for adding the invisible watermark to the client according to the embodiment of the invention.
another embodiment of the present invention provides a storage medium, where the computer-readable storage medium includes a stored computer program, where when the computer program runs, a device in which the computer-readable storage medium is located is controlled to execute the method for adding an invisible watermark to a client according to the above embodiment of the present invention.
Compared with the prior art, the method has the following beneficial effects:
According to the method for adding the invisible watermark to the client, the invisible watermark processing request sent by the user, the user information and the pure color picture selected by the user are obtained, the user information is converted according to the invisible watermark processing request to generate the unique first watermark ID, the first watermark ID is stored in the watermark database, then the first watermark ID and the pure color picture are synthesized to generate the invisible watermark image with the first watermark ID, and finally the invisible watermark image is returned to the user to enable the user to use the invisible watermark image as the background of the client.
Drawings
FIG. 1 is a schematic flow chart diagram illustrating an embodiment of a method for adding an invisible watermark to a client according to the present invention;
FIG. 2 is a service framework diagram of one embodiment of a method for adding an invisible watermark to a client provided by the present invention;
Fig. 3 is a schematic structural diagram of an embodiment of the apparatus for adding an invisible watermark to a client according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a schematic flowchart of an embodiment of a method for adding an invisible watermark to a client according to the present invention; the embodiment of the invention provides a method for adding an invisible watermark to a client, which comprises the steps of S1-S4;
And S1, acquiring the invisible watermarking request sent by the user, the user information and the pure color picture selected by the user.
In this embodiment, the user information includes user identity information, request time information, request device information, service system information, and interface ID information.
the invisible watermark is loaded by utilizing the pure color picture, so that the invisible watermark technology can be used for protecting sensitive information of a user interface of a client without influencing the reading of a user.
As a preferred embodiment of the present invention, the watermark background images all adopt pure color images, and the invisible watermarks are loaded on the pure color images, so that the invisible watermarking technology can be used for protecting sensitive information of a client user interface without affecting the reading of a user.
And S2, converting the user information according to the invisible watermarking request, generating a unique first watermark ID, and storing the first watermark ID into a watermark database.
In this embodiment, a watermark database is designed, so that a short watermark text can contain rich security information, and related personnel can trace the source of the leaked information conveniently.
and S3, synthesizing the first watermark ID and the pure color picture to generate an invisible watermark with the first watermark ID.
In this embodiment, step S3 specifically includes: extracting all pixels of the image synthesized by the first watermark ID and the pure color picture, decomposing each pixel into ARGB four-bit information, and expressing each bit of information by a shaping number of 0-255; encoding the first watermark into a string of binary strings and replacing the binary strings with the last digit value of the ARGB value of each pixel of the synthesized image to generate an invisible watermark map with a first watermark ID.
it should be noted that, in order to implement the invisible watermark, all pixels of a picture need to be extracted, where each pixel can be decomposed into ARGB four-bit information (alpha, red, green, blue, respectively), each bit is represented by a shaping number from 0 to 255, and a fine change of the color level of the last bit is completely invisible to human eyes. The character (or picture) information of the watermark is coded into a string of binary characters, the last bit of the value of each ARGB is cleared and replaced by the binary characters, and the effect of storing hidden information by using the last bit of color level is achieved.
As a preferred embodiment of the present invention, after step S3, the method further includes the steps of: and adding a non-binary prefix and suffix to the binary character string in the last digit value of the ARGB value of each pixel of the invisible watermark pattern, so that the recognition program can recognize the binary character string conveniently.
In the actual processing, after the watermark information is coded into a binary system, non-binary prefixes and prefixes are added for detecting the identification program, and meanwhile, in order to enable the whole picture to be covered by the watermark, the watermark information is circularly laid in the background picture, so that the watermark information can be successfully detected as long as the picture contains effective watermark information.
S4, returning the invisible watermark to the user for the user to use the invisible watermark as the background of the client.
Referring to fig. 2, fig. 2 is a service framework diagram of the present invention, and as a preferred embodiment of the present invention, the present invention further provides a watermark extraction module, which can extract a watermark of a leaked image, and when there is sensitive data leakage in an invisible watermark image generated by the present invention, a binary character in a tailored invisible watermark can be extracted by extracting information from the leaked image, and a corresponding ID number can be found, and user information can be traced back in a watermark database according to the ID number, so that a leakage source can be traced back.
according to the method for adding the invisible watermark to the client, the invisible watermark processing request sent by the user, the user information and the pure color picture selected by the user are obtained, the user information is converted according to the invisible watermark processing request to generate the unique first watermark ID, the first watermark ID is stored in the watermark database, then the first watermark ID and the pure color picture are synthesized to generate the invisible watermark image with the first watermark ID, and finally the invisible watermark image is returned to the user to enable the user to use the invisible watermark image as the background of the client.
The embodiment provided by the invention has the following beneficial effects:
(1) The invisible watermark is loaded by utilizing the pure color picture, so that the invisible watermark technology can be used for protecting sensitive information of a client user interface without influencing the reading of a user;
(2) A watermark database is designed, so that a short watermark text can contain rich safety information, and related personnel can trace the source of the leaked information conveniently;
(3) through reasonable service architecture design, the invisible watermarking technology can be horizontally expanded conveniently.
Referring to fig. 3 as a preferred embodiment provided by the present invention, fig. 3 is a schematic structural diagram of an embodiment of an apparatus for adding an invisible watermark to a client according to the present invention, including: the device comprises an acquisition module, a conversion module, a synthesis module and a feedback module;
The acquisition module is used for acquiring an invisible watermarking processing request sent by a user, user information and a pure color picture selected by the user; the conversion module is used for converting the user information according to the invisible watermark processing request, generating a unique first watermark ID and storing the first watermark ID into a watermark database; the synthesis module is used for synthesizing the first watermark ID and the pure color picture to generate an invisible watermark image with the first watermark ID; the feedback module is used for returning the invisible watermark to the user so that the user can use the invisible watermark as the background of the client.
In this embodiment, the synthesis module includes: a pixel extraction unit and a pixel replacement unit; the pixel extraction unit is used for extracting all pixels of the image formed by synthesizing the first watermark ID and the pure color picture, decomposing each pixel into ARGB four-bit information, and expressing each bit of information by a shaping number of 0-255; and the pixel replacement unit is used for encoding the first watermark into a string of binary character strings and replacing the binary character strings with the last digit value of the ARGB value of each pixel of the synthesized image to generate the invisible watermark image with the first watermark ID.
Preferably, the device for adding the invisible watermark to the client further includes: an identification information adding module;
The identification information adding module is used for adding non-binary suffixes and suffixes to the binary character string in the last digit value of the ARGB value of each pixel of the invisible watermark, so that the identification of a program is facilitated.
it should be noted that the user information includes user identity information, request time information, request device information, service system information, and interface ID information.
As can be seen from the above, according to the apparatus for adding an invisible watermark to a client, provided by the embodiments of the present invention, an invisible watermark processing request, user information, and a solid image selected by a user sent by an obtaining module are obtained, then the user information is converted by a converting module according to the invisible watermark processing request to generate a unique first watermark ID, the first watermark ID is stored in a watermark database, then the first watermark ID and the solid image are synthesized by a synthesizing module to generate an invisible watermark image with the first watermark ID, and finally the invisible watermark image is returned to the user to be used as a background of the client by the user And the control of information security risks is realized under the conditions of not influencing interaction and not being perceived by people.
The embodiment of the invention also provides equipment for adding the invisible watermark to the client. The apparatus comprises: a processor, a memory, and a computer program stored in the memory and executable on the processor. The processor, when executing the computer program, implements the steps in the above-described embodiments of the method for adding an invisible watermark to a client, such as steps S1 to S4 shown in fig. 1.
The Processor may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, discrete hardware components, etc. The general-purpose processor may be a microprocessor or the processor may be any conventional processor, and the processor is a control center of the device for adding the invisible watermark to the client, and various interfaces and lines are used to connect various parts of the whole device for adding the invisible watermark to the client.
the memory can be used for storing the computer program and/or the module, and the processor can realize various functions of the device for adding the invisible watermark to the client by running or executing the computer program and/or the module stored in the memory and calling the data stored in the memory. The memory may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. In addition, the memory may include high speed random access memory, and may also include non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), at least one magnetic disk storage device, a Flash memory device, or other volatile solid state storage device.
the device integrated module/unit for adding the invisible watermark to the client can be stored in a computer readable storage medium if the module/unit is realized in the form of a software functional unit and sold or used as an independent product. Based on such understanding, all or part of the flow of the method according to the embodiments of the present invention may also be implemented by a computer program, which may be stored in a computer-readable storage medium, and when the computer program is executed by a processor, the steps of the method embodiments may be implemented. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, usb disk, removable hard disk, magnetic disk, optical disk, computer Memory, Read-Only Memory (ROM), Random Access Memory (RAM), electrical carrier wave signals, telecommunications signals, software distribution medium, and the like.
it should be noted that the above-described device embodiments are merely illustrative, where the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. In addition, in the drawings of the embodiment of the apparatus provided by the present invention, the connection relationship between the modules indicates that there is a communication connection between them, and may be specifically implemented as one or more communication buses or signal lines. One of ordinary skill in the art can understand and implement it without inventive effort.
while the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.
Claims (10)
1. A method for adding invisible watermarks to a client is characterized by comprising the following steps:
Acquiring an invisible watermarking processing request sent by a user, user information and a pure color picture selected by the user;
Converting the user information according to the invisible watermark processing request to generate a unique first watermark ID, and storing the first watermark ID into a watermark database;
synthesizing the first watermark ID and the pure color picture to generate an invisible watermark with the first watermark ID;
And returning the invisible watermark image to the user for the user to use the invisible watermark image as the background of the client.
2. the method for adding the invisible watermark to the client according to claim 1, wherein the synthesizing the first watermark ID and the solid-color picture generates the invisible watermark image with the first watermark ID, specifically:
extracting all pixels of the image synthesized by the first watermark ID and the pure color picture, decomposing each pixel into ARGB four-bit information, and expressing each bit of information by a shaping number of 0-255;
Encoding the first watermark into a string of binary strings and replacing the binary strings with the last digit value of the ARGB value of each pixel of the synthesized image to generate an invisible watermark map with a first watermark ID.
3. The method for adding the invisible watermark to the client side according to claim 2, wherein after the synthesizing the first watermark ID and the solid color picture to generate the invisible watermark image with the first watermark ID, further comprising:
and adding a non-binary prefix and suffix to the binary character string in the last digit value of the ARGB value of each pixel of the invisible watermark pattern, so that the recognition program can recognize the binary character string conveniently.
4. The method for adding the invisible watermark to the client side according to claim 1, wherein the user information comprises user identity information, request time information, request device information, service system information and interface ID information.
5. An apparatus for adding invisible watermarks to a client, comprising: the device comprises an acquisition module, a conversion module, a synthesis module and a feedback module;
The acquisition module is used for acquiring an invisible watermarking processing request sent by a user, user information and a pure color picture selected by the user;
the conversion module is used for converting the user information according to the invisible watermark processing request, generating a unique first watermark ID and storing the first watermark ID into a watermark database;
the synthesis module is used for synthesizing the first watermark ID and the pure color picture to generate an invisible watermark image with the first watermark ID;
The feedback module is used for returning the invisible watermark to the user so that the user can use the invisible watermark as the background of the client.
6. the apparatus for adding invisible watermarks to clients according to claim 5, wherein the composition module comprises: a pixel extraction unit and a pixel replacement unit;
The pixel extraction unit is used for extracting all pixels of the image formed by synthesizing the first watermark ID and the pure color picture, decomposing each pixel into ARGB four-bit information, and expressing each bit of information by a shaping number of 0-255;
And the pixel replacement unit is used for encoding the first watermark into a string of binary character strings and replacing the binary character strings with the last digit value of the ARGB value of each pixel of the synthesized image to generate the invisible watermark image with the first watermark ID.
7. The apparatus for adding invisible watermark to the client according to claim 6, further comprising: an identification information adding module;
The identification information adding module is used for adding non-binary suffixes and suffixes to the binary character string in the last digit value of the ARGB value of each pixel of the invisible watermark, so that the identification of a program is facilitated.
8. the apparatus for adding the invisible watermark to the client side according to claim 5, wherein the user information comprises user identity information, request time information, request device information, service system information and interface ID information.
9. an apparatus for adding an invisible watermark to a client, comprising a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, wherein the processor, when executing the computer program, implements the method for adding an invisible watermark to a client according to any one of claims 1 to 4.
10. A computer-readable storage medium, comprising a stored computer program, wherein the computer program, when executed, controls an apparatus in which the computer-readable storage medium is located to perform the method for adding the invisible watermark to the client according to any one of claims 1 to 4.
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Application publication date: 20191206 |