CN113379582A - Information adding method, information extracting device and electronic equipment - Google Patents
Information adding method, information extracting device and electronic equipment Download PDFInfo
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- G06K17/0025—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisions for transferring data to distant stations, e.g. from a sensing device the arrangement consisting of a wireless interrogation device in combination with a device for optically marking the record carrier
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Abstract
The application discloses an information adding method, an information extracting device and electronic equipment, wherein the information adding method comprises the following steps: acquiring appointed information to be added; carrying out two-dimensional code coding on the specified information to obtain a two-dimensional code watermark capable of representing the specified information; embedding the two-dimension code watermark into an original display frame to be displayed on a screen of a terminal to obtain a frame to be displayed, in which the two-dimension code watermark is embedded; and when the original display frame needs to be displayed, replacing the original display frame with the frame to be displayed for displaying. Correspondingly, acquiring a picture obtained by shooting a display frame displayed on a screen of the terminal; extracting the two-dimensional code watermark from the picture; the specific information is identified from the two-dimensional code watermark. By adopting the scheme, the information is added and extracted from the display frame displayed on the terminal screen.
Description
Technical Field
The present application relates to the field of information processing technologies, and in particular, to an information adding method, an information extracting device, and an electronic device.
Background
With the rapid development of computer technology, information processing technology by computers, in which some specific information is often required to be added to some specific objects, has also been widely used.
For example, in image processing techniques, some watermarks representing user information may be added to a picture to clarify the originator to which the picture belongs; in the information tracing technology, tracing information for tracing can be added into a file which is possibly compromised, and after the file is compromised, a compromised person can be found based on the added tracing information; for another example, in the address book creation technology, attribute information of some person is automatically identified and added to the information column under the name of the person in the address book.
Currently, various known information adding technologies are widely applied and meet the requirements of many application scenarios, and then, as various changes occur in the information types and application scenarios, some new information adding technologies still need to appear to meet some specific requirements.
Disclosure of Invention
The embodiment of the application provides an information adding method, an information extracting device and electronic equipment, and aims to solve the technical problem of how to add information into a display frame displayed on a terminal screen and extract information.
An embodiment of the present application provides an information adding method, including:
acquiring appointed information to be added;
carrying out two-dimensional code encoding on the specified information to obtain a two-dimensional code watermark capable of representing the specified information;
embedding the two-dimension code watermark into an original display frame to be displayed on a screen of a terminal to obtain a frame to be displayed, in which the two-dimension code watermark is embedded;
and when the original display frame needs to be displayed, replacing the original display frame with the frame to be displayed for displaying.
Further, embedding the two-dimensional code watermark into an original display frame to be displayed on a screen of the terminal to obtain a frame to be displayed with the two-dimensional code watermark embedded therein, including:
determining an embedded area of the two-dimensional code watermark from an original display frame to be displayed on a screen of a terminal;
replacing the embedded area with the two-dimension code watermark to obtain a frame to be displayed, wherein the two-dimension code watermark is embedded in the frame; or
And aiming at each position point of the two-dimensional code watermark, adjusting the pixel value of the pixel point corresponding to the position point in the embedding area according to the adjustment mode corresponding to the value of the position point, and obtaining the frame to be displayed embedded with the two-dimensional code watermark.
Further, embedding the two-dimensional code watermark into an original display frame to be displayed on a screen of the terminal includes:
and embedding the two-dimensional code watermark into the area, which is similar to the color of the two-dimensional code watermark, in the original display frame based on the color of the two-dimensional code watermark and the color of each area in the original display frame to be displayed on a screen of the terminal.
Further, embedding the two-dimensional code watermark into an original display frame to be displayed on a screen of the terminal includes:
and embedding the two-dimension code watermark into a specified area in an original display frame to be displayed on a screen of the terminal, wherein the specified area is different from an area where the two-dimension code watermark is located in a previous display frame containing the two-dimension code watermark.
Further, the designated area is a corresponding area of an area where the two-dimensional code watermark is located in the last display frame containing the two-dimensional code watermark.
Furthermore, the number of display frames with a difference between the frame to be displayed and the last display frame containing the two-dimensional code watermark is within a preset number range.
Further, the designated information is source tracing information; or, the designated information is information to be transmitted.
Further, the tracing information includes a terminal identifier of the terminal.
Further, the tracing information further includes at least one of the following information:
user login information of the terminal;
the current time.
The embodiment of the application provides an information extraction method, which comprises the following steps:
acquiring a picture obtained by shooting a display frame displayed on a screen of a terminal, wherein a two-dimensional code watermark capable of representing specified information is embedded in the display frame, and the two-dimensional code watermark is obtained by performing two-dimensional code coding on the specified information;
extracting a two-dimensional code watermark from a picture;
and identifying the specified information from the two-dimensional code watermark.
Furthermore, the two-dimensional code watermark is obtained by performing two-dimensional code encoding on the specified information in a differential encoding mode and is not larger than a preset size threshold.
Further, the designated information is source tracing information; or, the designated information is information to be transmitted.
Further, the tracing information includes a terminal identifier of the terminal.
Further, the tracing information further includes at least one of the following information:
user login information of the terminal;
the current time.
An embodiment of the present application provides an information adding apparatus, including:
the information acquisition module is used for acquiring the specified information to be added;
the information coding module is used for carrying out two-dimensional code coding on the specified information to obtain a two-dimensional code watermark capable of representing the specified information;
the watermark embedding module is used for embedding the two-dimension code watermark into an original display frame to be displayed on a screen of the terminal to obtain a frame to be displayed, in which the two-dimension code watermark is embedded;
and the replacing module is used for replacing the original display frame with the frame to be displayed for displaying when the original display frame needs to be displayed.
Further, the watermark embedding module is specifically used for determining an embedding area of the two-dimensional code watermark from an original display frame to be displayed on a screen of the terminal;
replacing the embedded area with the two-dimension code watermark to obtain a frame to be displayed, wherein the two-dimension code watermark is embedded in the frame; or
And aiming at each position point of the two-dimensional code watermark, adjusting the pixel value of the pixel point corresponding to the position point in the embedding area according to the adjustment mode corresponding to the value of the position point, and obtaining the frame to be displayed embedded with the two-dimensional code watermark.
Further, the watermark embedding module is specifically configured to embed the two-dimensional code watermark into an area, which is in a similar color to the two-dimensional code watermark, of the original display frame based on the color of the two-dimensional code watermark and the color of each area in the original display frame to be displayed on the screen of the terminal.
Further, the watermark embedding module is specifically configured to embed the two-dimensional code watermark into a specified area in an original display frame to be displayed on a screen of the terminal, where the specified area is different from an area where the two-dimensional code watermark is located in a previous display frame including the two-dimensional code watermark.
Further, the designated area is a corresponding area of an area where the two-dimensional code watermark is located in the last display frame containing the two-dimensional code watermark.
Furthermore, the number of display frames with a difference between the frame to be displayed and the last display frame containing the two-dimensional code watermark is within a preset number range.
Further, the designated information is source tracing information; or, the designated information is information to be transmitted.
Further, the tracing information includes a terminal identifier of the terminal.
Further, the tracing information further includes at least one of the following information:
user login information of the terminal;
the current time.
An embodiment of the present application provides an information extraction apparatus, including:
the terminal comprises a picture acquisition module, a picture decoding module and a picture decoding module, wherein the picture acquisition module is used for acquiring a picture obtained by shooting a display frame displayed on a screen of the terminal, and a two-dimensional code watermark capable of representing specified information is embedded in the display frame and is obtained by carrying out two-dimensional code coding on the specified information;
the watermark extraction module is used for extracting the two-dimensional code watermark from the picture;
and the information identification module is used for identifying the specified information from the two-dimensional code watermark.
Furthermore, the two-dimensional code watermark is obtained by performing two-dimensional code encoding on the specified information in a differential encoding mode and is not larger than a preset size threshold.
Further, the designated information is source tracing information; or, the designated information is information to be transmitted.
Further, the tracing information includes a terminal identifier of the terminal.
Further, the tracing information further includes at least one of the following information:
user login information of the terminal;
the current time.
An embodiment of the present application provides an electronic device, including: a processor and a machine-readable storage medium storing machine-executable instructions executable by the processor, the processor caused by the machine-executable instructions to: implementing any of the above-described information adding methods, or implementing any of the above-described information extracting methods.
An embodiment of the present application provides a computer-readable storage medium, in which a computer program is stored, and when the computer program is executed by a processor, the computer program implements any one of the above-mentioned information adding methods, or implements any one of the above-mentioned information extracting methods.
The embodiment of the present application further provides a computer program product containing instructions, which when run on a computer, causes the computer to execute any of the above-mentioned information adding methods, or execute any of the above-mentioned information extracting methods.
The beneficial effect of this application includes:
according to the method provided by the embodiment of the application, when information needs to be added into a display frame, the designated information to be added is obtained, two-dimensional code encoding is carried out on the designated information, a two-dimensional code watermark capable of representing the designated information is obtained, then the two-dimensional code watermark is embedded into an original display frame to be displayed on a screen of a terminal, the frame to be displayed with the two-dimensional code watermark embedded is obtained, and when the original display frame needs to be displayed, the frame to be displayed is used for replacing the original display frame to be displayed. Correspondingly, when the specific information needs to be extracted, a picture obtained by shooting a display frame displayed by a screen lock of the terminal can be obtained, the embedded two-dimensional code watermark capable of representing the specific information is extracted from the picture, and the specific information is identified from the two-dimensional code watermark. By adopting the method, the specified information is coded into the two-dimension code watermark, added to the display frame to be displayed on the screen and displayed, and correspondingly, the two-dimension code watermark is extracted from the picture obtained by shooting the display frame and the specified information is extracted from the two-dimension code watermark, so that the information is added to the display frame displayed on the terminal screen and extracted.
Additional features and advantages of the application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the application. The objectives and other advantages of the application may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
The accompanying drawings are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application and not to limit the application. In the drawings:
fig. 1 is a flowchart of an information adding method provided in an embodiment of the present application;
fig. 2 is a flowchart of an information extraction method provided in an embodiment of the present application;
fig. 3 is a flowchart of a traceability information adding method according to an embodiment of the present application;
fig. 4 is a flowchart of an information adding method to be transmitted according to an embodiment of the present application;
fig. 5 is a flowchart of an information extraction method to be transmitted according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of an information adding apparatus according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of an information extraction apparatus according to an embodiment of the present application;
fig. 8 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Detailed Description
In order to provide an implementation scheme of how to add information in a display frame displayed on a terminal screen and extract information, embodiments of the present application provide an information adding method, an information extracting method, an apparatus and an electronic device. And the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
An embodiment of the present application provides an information adding method, as shown in fig. 1, including:
and step 11, acquiring the specified information to be added.
And 12, carrying out two-dimensional code coding on the specified information to obtain a two-dimensional code watermark capable of representing the specified information.
And step 13, embedding the two-dimension code watermark into an original display frame to be displayed on a screen of the terminal to obtain the frame to be displayed with the two-dimension code watermark embedded.
And 14, when the original display frame needs to be displayed, replacing the original display frame with the frame to be displayed for displaying.
Correspondingly, an embodiment of the present application further provides an information extraction method, as shown in fig. 2, including:
and step 21, acquiring a picture obtained by shooting a display frame displayed on a screen of the terminal, wherein a two-dimensional code watermark capable of representing the designated information is embedded in the display frame, and the two-dimensional code watermark is obtained by performing two-dimensional code coding on the designated information.
And step 22, extracting the two-dimensional code watermark from the picture.
And step 23, identifying the specified information from the two-dimensional code watermark.
By adopting the information adding method and the information extracting method provided by the embodiment of the application, the specified information is coded into the two-dimensional code watermark, the two-dimensional code watermark is added into the display frame to be displayed on the screen and displayed, correspondingly, the two-dimensional code watermark is extracted from the picture obtained by shooting the display frame, and the specified information is extracted from the two-dimensional code watermark, so that the information is added into the display frame displayed on the terminal screen and the information is extracted.
In the information adding method and the information extracting method provided by the embodiment of the application, because the refreshing frequency of the screen of the terminal is higher, when the content displayed on the screen is watched by human eyes, the flicker caused by replacing the display frame cannot be perceived, that is, the visual effect of watching the screen content by the human eyes cannot be influenced.
Furthermore, in order to better hide the added two-dimensional code watermark and enable the two-dimensional code watermark to be less easily perceived by human eyes, when the two-dimensional code encoding is performed on the designated information, the size of the two-dimensional code watermark can be adjusted to be within a preset size range, namely, the two-dimensional code watermark is adjusted to be suitable for the size, for example, the size is not greater than a maximum preset size threshold value so as to enable the two-dimensional code watermark to be less easily perceived by human eyes, and the size is not less than a minimum preset size threshold value so as to enable the two-dimensional code watermark to be relatively easily extracted subsequently.
In an embodiment of the application, when the two-dimensional code watermark needs to be embedded into the original display frame, after the embedded area of the two-dimensional code watermark is determined from the original display frame, the two-dimensional code watermark can be embedded in a relatively simple and convenient manner, namely the embedded area is replaced by the two-dimensional code watermark, so that the to-be-displayed frame embedded with the two-dimensional code watermark is obtained, and the embedding can be quickly realized by the manner.
In another embodiment of the present application, when a two-dimensional code watermark needs to be embedded in an original display frame, after an embedded region of the two-dimensional code watermark is determined from the original display frame, in order to make the embedded region of the two-dimensional code watermark less noticeable after the two-dimensional code watermark is embedded, a pixel value of each pixel point of the embedded region may be adjusted based on values of each position point of the two-dimensional code watermark and a corresponding adjustment manner, for example, a pixel value of a pixel point corresponding to the position point in the embedded region may be adjusted according to an adjustment manner corresponding to the value of the position point for each position point of the two-dimensional code watermark, so as to obtain a frame to be displayed in which the two-dimensional code watermark is embedded.
For example, for a position point of the two-dimensional code watermark, when the value of the position point is not 0, adjusting the pixel value of a pixel point corresponding to the position point in the embedding region, when the pixel value of the pixel point corresponding to the position point in the embedding region is less than a preset value, adjusting the pixel value of the pixel point corresponding to the position point in the embedding region plus a preset value, and when the pixel value of the pixel point corresponding to the position point in the embedding region is greater than the preset value, adjusting the pixel value of the pixel point corresponding to the position point in the embedding region minus the preset value, where the preset value can be flexibly selected, for example, the preset value is 5 or 10. The pixel values of the pixel points can flexibly select one or more color components of one or more color channels, and the color and the transparency can be changed. Compared with a mode of directly replacing the embedded area with the two-dimensional code watermark, the adjusting mode is more difficult to perceive after the two-dimensional code watermark is embedded.
In an embodiment of the application, in order to better hide the added two-dimensional code watermark and make the added two-dimensional code watermark less likely to be perceived by human eyes, the two-dimensional code watermark may be embedded into the original display frame based on the color of the two-dimensional code watermark and the color of each region in the original display frame to be displayed on a screen of the terminal, and the two-dimensional code watermark is embedded into the region having a color similar to that of the two-dimensional code watermark.
In an embodiment of the application, two-dimensional code watermarks representing the same designated information or two-dimensional code watermarks representing different designated information may be embedded into a plurality of display frames, at this time, if two-dimensional code watermarks in a plurality of successively displayed display frames are located in the same area, the two-dimensional code watermarks may be easily perceived by human eyes to affect visual effects, and in order to avoid this, the areas where two-dimensional code watermarks are located in two adjacent display frames in which two-dimensional code watermarks are embedded may be different when the two-dimensional code watermarks are embedded.
In some practical applications related to the information adding technology, information tracing is an important application scenario, and the purpose of information tracing is to find a divulger after information is divulged. At present, in the existing information tracing technology, tracing information is often added to information or files needing to be kept secret, for example, a blind watermark representing the tracing information can be added to a picture or video needing to be kept secret; the traceability information may also be added to the propagation path, e.g. to the email, when information or files that need to be kept secret are to be transmitted. However, these information tracing techniques all require preprocessing of a large amount of information or files to be kept secret, require a large amount of computing resources and time, and change the information or files to be kept secret.
In order to solve the problem, the information adding method and the information extracting method provided by the embodiment of the present application may be adopted, wherein the specified information to be added is tracing information, which is described in detail below.
An embodiment of the present application provides a method for adding tracing information, as shown in fig. 3, including:
and step 31, obtaining the traceability information to be added.
In this embodiment, the source tracing information may include a terminal identifier of the terminal, for example, an IP (Internet Protocol) address of the terminal, and a MAC (Media Access Control) address of the terminal.
The traceability information may further include at least one of the following information:
user login information of the terminal;
the current time.
The more kinds of the tracing information are, the easier the divulger can be found in the later period.
In an embodiment of the present application, the step may be started to be executed when some trigger conditions are met, for example, the step may be started in some preset specific time periods, may be started when a terminal opens some specific files, may be started when an open instruction input by a user is received, and may also be started in other various trigger conditions according to needs in practical applications, which are not described in detail herein by way of example.
And 32, carrying out two-dimensional code coding on the obtained tracing information to obtain a two-dimensional code watermark capable of representing the tracing information.
In this step, when the two-dimensional code encoding is performed on the tracing information, the size of the two-dimensional code watermark may be adjusted to be within the preset size range, that is, the two-dimensional code watermark is adjusted to be suitable for the size, for example, not greater than the maximum preset size threshold value, so as to be less likely to be perceived by human eyes, and also not less than the minimum preset size threshold value, so that the two-dimensional code watermark may be relatively easily extracted subsequently.
Because the two-dimensional code watermark is of a proper size, the added two-dimensional code watermark can be better hidden and is less likely to be perceived by human eyes.
And 33, embedding the two-dimension code watermark into an original display frame to be displayed on a screen of the terminal to obtain the frame to be displayed with the two-dimension code watermark embedded.
In this step, the original display frame to be displayed may be the next display frame to be displayed, or may be a first preset number of display frames to be displayed.
In this step, the area where the two-dimensional code watermark is located in the original display frame may be determined in the following ways.
The first mode is as follows: based on the color of the two-dimensional code watermark and the color of each area in an original display frame to be displayed on a screen of a terminal, embedding the two-dimensional code watermark into the original display frame, wherein the area is similar to the color of the two-dimensional code watermark, for example, a plurality of preset areas are divided in the display frame in advance, when the two-dimensional code needs to be embedded each time, the colors of the preset areas in the original display frame to be displayed are obtained, the area with the closest color of the two-dimensional code watermark needing to be embedded is selected from the areas, and the two-dimensional code watermark is embedded into the selected area. Therefore, the two-dimensional code watermark is similar to the embedded area in color, and is less likely to be perceived by human eyes.
The second mode is as follows: based on actual needs, the two-dimensional code watermark may be embedded into different display frames for multiple times, for example, one two-dimensional code watermark is embedded into every specified number of display frames, at this time, if the positions of the areas where the two-dimensional code watermark is embedded each time are the same, the two-dimensional code watermark may be easily perceived by human eyes, therefore, the two-dimensional code watermark may be embedded into a specified area in the original display frame to be displayed on the screen of the terminal, and the specified area is different from the area where the two-dimensional code watermark is located in the previous display frame containing the two-dimensional code watermark.
Further, the designated area may be a corresponding area of an area where the two-dimensional code watermark is located in the previous display frame containing the two-dimensional code watermark, that is, a plurality of areas for embedding the two-dimensional code may be preset for the display frame, and the plurality of areas are arranged in a certain order, that is, each area has a corresponding area, for example, two areas adjacent to each other in the arrangement order have a longer distance, so that the influence on the visual effect of the display frame viewed by the human eyes is reduced, and the display frame is less likely to be perceived by the human eyes of a disclosure person.
In the second mode, the number of display frames with a difference between two display frames embedded with two-dimensional code watermarks displayed successively and adjacently can be not greater than the maximum preset number within a preset number range, for example, so that when a divulger steals information by adopting a mode of taking pictures facing a screen, the display frames embedded with the two-dimensional code watermarks can be shot more easily, and if the number of display frames embedded with the two-dimensional code watermarks is not less than the minimum preset number, so that excessive computing resources do not need to be consumed, and in practical application, the display frames can be flexibly set based on actual needs.
In this step, after the embedded area of the two-dimensional code watermark is determined from the original display frame, the two-dimensional code watermark can be embedded in the following manner:
the first embedding method: the two-dimensional code watermark can be embedded in a relatively simple and convenient mode, namely, the two-dimensional code watermark is used for replacing the embedded area to obtain the frame to be displayed, in which the two-dimensional code watermark is embedded, and the embedding can be quickly realized in the mode.
The second embedding method: in order to make the embedded two-dimensional code watermark difficult to perceive, the pixel value of each pixel point of the embedded area may be adjusted based on the value of each position point of the two-dimensional code watermark and the corresponding adjustment mode, for example, the pixel value of the pixel point corresponding to the position point in the embedded area may be adjusted according to the adjustment mode corresponding to the value of the position point for each position point of the two-dimensional code watermark, so as to obtain the frame to be displayed in which the two-dimensional code watermark is embedded.
For example, for a position point of the two-dimensional code watermark, when the value of the position point is not 0, adjusting the pixel value of a pixel point corresponding to the position point in the embedding region, when the pixel value of the pixel point corresponding to the position point in the embedding region is less than a preset value, adjusting the pixel value of the pixel point corresponding to the position point in the embedding region plus a preset value, and when the pixel value of the pixel point corresponding to the position point in the embedding region is greater than the preset value, adjusting the pixel value of the pixel point corresponding to the position point in the embedding region minus the preset value, where the preset value can be flexibly selected, for example, the preset value is 5 or 10. The pixel values of the pixel points can flexibly select one or more color components of one or more color channels, and the color and the transparency can be changed. Compared with a mode of directly replacing the embedded area with the two-dimensional code watermark, the adjusting mode is more difficult to perceive after the two-dimensional code watermark is embedded.
And step 34, replacing the original display frame with the frame to be displayed for displaying when the original display frame needs to be displayed.
When it is necessary to embed the two-dimensional code watermark into the display frame multiple times, after the present step 34 is executed, the above step 31 may be returned to.
By adopting the method for adding tracing information shown in fig. 3 provided by the embodiment of the application, when a divulger steals information by taking a content displayed on a screen of a terminal, a two-dimensional code watermark capable of representing the tracing information is embedded in a taken picture, when the divulger needs to be found, the picture can be obtained, the two-dimensional code watermark is extracted from the picture, then the tracing information is identified from the two-dimensional code watermark, and the divulger is found based on the tracing information.
In addition, the information tracing method provided by the embodiment of the application does not add tracing information in the information and the file which need to be kept secret, namely, the original information and the original file do not need to be modified, and compared with the prior art, the use of a large amount of computing resources and time is reduced.
With the rapid development and wide application of computer technology and network technology, the application of information transmission is already an essential content in people's life. For example, information transmission via a network, such as e-mail; different electronic devices can also be connected through a data line for information transmission, such as a USB interface; information transmission can also be carried out through short-distance wireless communication technologies, such as Bluetooth and WIFI.
However, in the above information transmission technologies, the transmission paths thereof all need to be supported by electrical signals, for example, through a network, through a data line, a wireless communication technology, and the like.
Based on the above information adding method and information extracting method provided by the embodiments of the present application, the embodiments of the present application provide an information transmission method, and a transmission path of the information transmission method may not depend on support of an electrical signal, which is described in detail below.
An embodiment of the present application provides a method for adding information to be transmitted, as shown in fig. 4, including:
and step 41, obtaining information to be added and transmitted.
In the embodiment of the present application, the obtaining manner of the information to be transmitted is not limited, and various obtaining manners may be possible. For example, it may be a file stream reading, screen word fetching, etc.
The acquired information can be various types, pictures, videos, audios, document files and the like.
The embodiment of the application also does not limit the obtaining frequency of the information to be transmitted, and the complete file information can be obtained at one time, or the same file information can be obtained for multiple times, or multiple file information can be obtained for multiple times respectively.
In the embodiment of the application, the complete file information is obtained once for description, that is, the complete information to be transmitted is obtained once in the step.
And 42, splitting the acquired complete information to be transmitted into a plurality of pieces of sub information to be transmitted.
When the information amount of the complete information to be transmitted is large, the information to be transmitted may not be embedded into the display frame at one time, and at this time, the information to be transmitted may be split into a plurality of pieces of sub information to be transmitted, and the sub information to be transmitted is embedded for a plurality of times.
And 43, carrying out two-dimensional code coding on the sub information to be transmitted which needs to be embedded currently to obtain a two-dimensional code watermark capable of representing the sub information to be transmitted.
When the two-dimensional code coding is performed for the first time, the two-dimensional code coding may be performed on the first sub information to be transmitted in the plurality of sub information to be transmitted, and subsequently, the two-dimensional code coding may be performed on the next sub information to be transmitted.
In this step, when the sub-information to be transmitted is subjected to the two-dimensional code encoding, the size of the two-dimensional code watermark may be adjusted to be within the preset size range, that is, the size of the two-dimensional code watermark is adjusted to be suitable, for example, not greater than the maximum preset size threshold value, so that the two-dimensional code watermark is not easily perceived by human eyes, or not less than the minimum preset size threshold value, so that the two-dimensional code watermark can be relatively easily extracted subsequently.
Because the two-dimensional code watermark is of a proper size, the added two-dimensional code watermark can be better hidden and is less likely to be perceived by human eyes.
And step 44, embedding the two-dimension code watermark into an original display frame to be displayed on a screen of the terminal to obtain a frame to be displayed, in which the two-dimension code watermark is embedded.
In this step, the original display frame to be displayed may be the next display frame to be displayed, or may be a first preset number of display frames to be displayed.
In this step, the area where the two-dimensional code watermark is located in the original display frame may be determined in the following ways.
The first mode is as follows: based on the color of the two-dimensional code watermark and the color of each area in an original display frame to be displayed on a screen of a terminal, embedding the two-dimensional code watermark into the original display frame, wherein the area is similar to the color of the two-dimensional code watermark, for example, a plurality of preset areas are divided in the display frame in advance, when the two-dimensional code needs to be embedded each time, the colors of the preset areas in the original display frame to be displayed are obtained, the area with the closest color of the two-dimensional code watermark needing to be embedded is selected from the areas, and the two-dimensional code watermark is embedded into the selected area. Therefore, the two-dimensional code watermark is similar to the embedded area in color, and is less likely to be perceived by human eyes.
The second mode is as follows: based on actual needs, the two-dimensional code watermark may be embedded into different display frames for multiple times, for example, one two-dimensional code watermark is embedded into every specified number of display frames, at this time, if the positions of the areas where the two-dimensional code watermark is embedded each time are the same, the two-dimensional code watermark may be easily perceived by human eyes, therefore, the two-dimensional code watermark may be embedded into a specified area in the original display frame to be displayed on the screen of the terminal, and the specified area is different from the area where the two-dimensional code watermark is located in the previous display frame containing the two-dimensional code watermark.
Further, the designated area may be a corresponding area of an area where the two-dimensional code watermark is located in the previous display frame containing the two-dimensional code watermark, that is, a plurality of areas for embedding the two-dimensional code may be preset for the display frame, and the plurality of areas are arranged in a certain order, that is, each area has a corresponding area, for example, two areas adjacent to each other in the arrangement order have a longer distance, so that the influence on the visual effect of the display frame viewed by the human eyes is reduced, and the display frame is less likely to be perceived by the human eyes of a disclosure person.
In the second manner, the number of display frames with a difference between two display frames embedded with two-dimensional code watermarks that are successively and adjacently displayed may be, for example, not greater than the maximum preset number within a preset number range, so that when information is acquired by shooting the information on a screen, all display frames embedded with two-dimensional code watermarks may be shot more quickly, and if the number of display frames embedded with two-dimensional code watermarks is not less than the minimum preset number, so that excessive computing resources do not need to be consumed, and in practical application, the display frames may be flexibly set based on actual needs.
In this step, after the embedded area of the two-dimensional code watermark is determined from the original display frame, the two-dimensional code watermark can be embedded in the following manner:
the first embedding method: the two-dimensional code watermark can be embedded in a relatively simple and convenient mode, namely, the two-dimensional code watermark is used for replacing the embedded area to obtain the frame to be displayed, in which the two-dimensional code watermark is embedded, and the embedding can be quickly realized in the mode.
The second embedding method: in order to make the embedded two-dimensional code watermark difficult to perceive, the pixel value of each pixel point of the embedded area may be adjusted based on the value of each position point of the two-dimensional code watermark and the corresponding adjustment mode, for example, the pixel value of the pixel point corresponding to the position point in the embedded area may be adjusted according to the adjustment mode corresponding to the value of the position point for each position point of the two-dimensional code watermark, so as to obtain the frame to be displayed in which the two-dimensional code watermark is embedded.
For example, for a position point of the two-dimensional code watermark, when the value of the position point is not 0, adjusting the pixel value of a pixel point corresponding to the position point in the embedding region, when the pixel value of the pixel point corresponding to the position point in the embedding region is less than a preset value, adjusting the pixel value of the pixel point corresponding to the position point in the embedding region plus a preset value, and when the pixel value of the pixel point corresponding to the position point in the embedding region is greater than the preset value, adjusting the pixel value of the pixel point corresponding to the position point in the embedding region minus the preset value, where the preset value can be flexibly selected, for example, the preset value is 5 or 10. The pixel values of the pixel points can flexibly select one or more color components of one or more color channels, and the color and the transparency can be changed. Compared with a mode of directly replacing the embedded area with the two-dimensional code watermark, the adjusting mode is more difficult to perceive after the two-dimensional code watermark is embedded.
And step 45, replacing the original display frame with the frame to be displayed for displaying when the original display frame needs to be displayed.
And step 46, determining whether the embedding of the two-dimensional code watermarks of all the sub information to be transmitted is finished, if not, returning to the step 43, and if so, finishing the addition of the information to be transmitted.
Correspondingly, an embodiment of the present application further provides a method for extracting information to be transmitted, so as to complete transmission of information, as shown in fig. 5, including:
and 51, acquiring a picture obtained by shooting a display frame displayed on a screen of the terminal, wherein a two-dimensional code watermark capable of representing information to be transmitted is embedded in the display frame, and the two-dimensional code watermark is obtained by performing two-dimensional code coding on the information to be transmitted.
In the embodiment of the application, in the process of displaying the display frame embedded with the two-dimensional code watermark by using the information to be transmitted adding method shown in fig. 4, the content displayed on the screen of the terminal is shot by using the camera device, and the obtained picture (i.e., video frame) in the video contains the two-dimensional code watermark capable of representing the information to be transmitted.
Corresponding to the step 43, when the two-dimensional code encoding is performed on the complete sub information to be transmitted of the information to be transmitted each time, in this step, the obtained picture includes the two-dimensional code watermark capable of representing the sub information to be transmitted.
And step 52, extracting the two-dimensional code watermark from the picture.
In the embodiment of the application, the two-dimensional code watermark can be extracted from the picture by adopting an extraction mode corresponding to the mode of embedding the two-dimensional code watermark, for example, if the two-dimensional code watermark is embedded in a direct replacement mode, an embedded area can be directly intercepted from the picture to obtain the two-dimensional code watermark; if the second embedding manner in step 33 is adopted, the embedded region may be intercepted from the picture, and the change condition of the pixel value of the pixel point in the embedded region is obtained based on the comparison with the pictures of the display frames in which the two-dimensional code watermark is not embedded, and the two-dimensional code watermark is extracted based on the change condition.
In other embodiments, various feasible two-dimensional code watermark extraction methods may also be adopted to extract a two-dimensional code watermark from the picture, which will not be described in detail herein by way of example.
And step 53, identifying the sub information to be transmitted from the two-dimensional code watermark.
In the embodiment of the present application, various feasible information identification manners may be adopted to identify the sub information to be transmitted from the two-dimensional code watermark, which is not described in detail herein by way of example.
And step 55, integrating all the extracted sub information to be transmitted into complete information to be transmitted.
By adopting the method shown in fig. 4 and 5 provided by the embodiment of the application, the information to be transmitted is encoded into the two-dimensional code watermark and is added into the display frame of the terminal screen, then the picture containing the two-dimensional code watermark is obtained by shooting the display frame of the screen, and the information to be transmitted is further extracted from the picture, wherein the transmission path of the information to be transmitted is equivalent to optical channel transmission, namely, the information to be transmitted is not supported by an electric signal.
And because the system does not depend on networks, data lines and wireless communication technologies, the information transmission can be realized more covertly.
Based on the same inventive concept, according to the information adding method provided in the foregoing embodiment of the present application, correspondingly, another embodiment of the present application further provides an information adding device, a schematic structural diagram of which is shown in fig. 6, and the method specifically includes:
an information obtaining module 61, configured to obtain specified information to be added;
the information encoding module 62 is configured to perform two-dimensional code encoding on the specified information to obtain a two-dimensional code watermark capable of representing the specified information;
the watermark embedding module 63 is configured to embed the two-dimensional code watermark into an original display frame to be displayed on a screen of the terminal, so as to obtain a frame to be displayed, in which the two-dimensional code watermark is embedded;
and a replacing module 64, configured to replace the original display frame with the frame to be displayed for displaying when the original display frame needs to be displayed.
Further, the watermark embedding module 63 is specifically configured to determine an embedding area of the two-dimensional code watermark from an original display frame to be displayed on a screen of the terminal;
replacing the embedded area with the two-dimension code watermark to obtain a frame to be displayed, wherein the two-dimension code watermark is embedded in the frame; or
And aiming at each position point of the two-dimensional code watermark, adjusting the pixel value of the pixel point corresponding to the position point in the embedding area according to the adjustment mode corresponding to the value of the position point, and obtaining the frame to be displayed embedded with the two-dimensional code watermark.
Further, the watermark embedding module 63 is specifically configured to embed the two-dimensional code watermark into an area, which is in the same color as the two-dimensional code watermark, of the original display frame to be displayed on the screen of the terminal based on the color of the two-dimensional code watermark and the color of each area in the original display frame.
Further, the watermark embedding module 63 is specifically configured to embed the two-dimensional code watermark into a specified area in an original display frame to be displayed on a screen of the terminal, where the specified area is different from an area where the two-dimensional code watermark is located in a previous display frame that includes the two-dimensional code watermark.
Further, the designated area is a corresponding area of an area where the two-dimensional code watermark is located in the last display frame containing the two-dimensional code watermark.
Furthermore, the number of display frames with a difference between the frame to be displayed and the last display frame containing the two-dimensional code watermark is within a preset number range.
Further, the designated information is source tracing information; or, the designated information is information to be transmitted.
Further, the tracing information includes a terminal identifier of the terminal.
Further, the tracing information further includes at least one of the following information:
user login information of the terminal;
the current time.
Based on the same inventive concept, according to the information extraction method provided in the foregoing embodiment of the present application, correspondingly, another embodiment of the present application further provides an information extraction device, a schematic structural diagram of which is shown in fig. 7, and the method specifically includes:
the image obtaining module 71 is configured to obtain an image obtained by shooting a display frame displayed on a screen of the terminal, where a two-dimensional code watermark capable of representing the designated information is embedded in the display frame, and the two-dimensional code watermark is obtained by performing two-dimensional code encoding on the designated information;
the watermark extraction module 72 is used for extracting the two-dimensional code watermark from the picture;
and an information identification module 73, configured to identify the specific information from the two-dimensional code watermark.
Furthermore, the two-dimensional code watermark is obtained by performing two-dimensional code encoding on the specified information in a differential encoding mode and is not larger than a preset size threshold.
Further, the designated information is source tracing information; or, the designated information is information to be transmitted.
Further, the tracing information includes a terminal identifier of the terminal.
Further, the tracing information further includes at least one of the following information:
user login information of the terminal;
the current time.
The functions of the above modules may correspond to the corresponding processing steps in the flows shown in fig. 1 to fig. 5, and are not described herein again.
The information adding device and the information extracting device provided by the embodiment of the application can be realized by a computer program. It should be understood by those skilled in the art that the above-mentioned module division is only one of many module division, and if the division is performed into other modules or not, it is within the scope of the present application as long as the wall painting and printing apparatus has the above-mentioned functions.
Based on the same inventive concept, according to the information adding method and the information extracting method provided in the foregoing embodiments of the present application, correspondingly, another embodiment of the present application further provides an electronic device, a schematic structural diagram of which is shown in fig. 8, and the electronic device specifically includes: a processor 81 and a machine-readable storage medium 82, the machine-readable storage medium 82 storing machine-executable instructions executable by the processor 81, the processor 81 being caused by the machine-executable instructions to: implementing any of the above-described information adding methods, or implementing any of the above-described information extracting methods.
An embodiment of the present application further provides a computer-readable storage medium, in which a computer program is stored, and when the computer program is executed by a processor, the computer program implements any of the above-mentioned information adding methods, or implements any of the above-mentioned information extracting methods.
Embodiments of the present application further provide a computer program product including instructions, which when run on a computer, cause the computer to execute any of the above-mentioned information adding methods, or execute any of the above-mentioned information extracting methods.
The machine-readable storage medium in the electronic device may include a Random Access Memory (RAM) and a Non-Volatile Memory (NVM), such as at least one disk Memory. Optionally, the memory may also be at least one memory device located remotely from the processor.
The Processor may be a general-purpose Processor, including a Central Processing Unit (CPU), a Network Processor (NP), and the like; but also Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components.
In summary, according to the scheme provided by the embodiment of the application, when information needs to be added to a display frame, designated information to be added is obtained, two-dimensional code encoding is performed on the designated information, a two-dimensional code watermark capable of representing the designated information is obtained, then the two-dimensional code watermark is embedded into an original display frame to be displayed on a screen of a terminal, the frame to be displayed with the two-dimensional code watermark embedded therein is obtained, and when the original display frame needs to be displayed, the original display frame is replaced by the frame to be displayed for displaying. Correspondingly, when the specific information needs to be extracted, a picture obtained by shooting a display frame displayed by a screen lock of the terminal can be obtained, the embedded two-dimensional code watermark capable of representing the specific information is extracted from the picture, and the specific information is identified from the two-dimensional code watermark. By adopting the method, the specified information is coded into the two-dimension code watermark, added to the display frame to be displayed on the screen and displayed, and correspondingly, the two-dimension code watermark is extracted from the picture obtained by shooting the display frame and the specified information is extracted from the two-dimension code watermark, so that the information is added to the display frame displayed on the terminal screen and extracted.
All the embodiments in the present specification are described in a related manner, and the same and similar parts among the embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the apparatus, the electronic device, the computer-readable storage medium, and the computer program product embodiment, since they are substantially similar to the method embodiment, the description is relatively simple, and for the relevant points, reference may be made to the partial description of the method embodiment.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (10)
1. An information adding method, comprising:
acquiring appointed information to be added;
performing two-dimensional code encoding on the specified information to obtain a two-dimensional code watermark capable of representing the specified information;
embedding the two-dimension code watermark into an original display frame to be displayed on a screen of a terminal to obtain a frame to be displayed, in which the two-dimension code watermark is embedded;
and when the original display frame needs to be displayed, replacing the original display frame with the frame to be displayed for displaying.
2. The method of claim 1, wherein the embedding the two-dimensional code watermark into an original display frame to be displayed on a screen of a terminal to obtain a frame to be displayed with the two-dimensional code watermark embedded therein comprises:
determining an embedding area of the two-dimensional code watermark from an original display frame to be displayed on a screen of a terminal;
replacing the embedded area with the two-dimension code watermark to obtain a frame to be displayed, wherein the two-dimension code watermark is embedded in the frame; or
And aiming at each position point of the two-dimensional code watermark, adjusting the pixel value of the pixel point corresponding to the position point in the embedding area according to the adjustment mode corresponding to the value of the position point, and obtaining the frame to be displayed embedded with the two-dimensional code watermark.
3. The method of claim 1, wherein the embedding the two-dimensional code watermark into an original display frame to be displayed on a screen of a terminal comprises:
and embedding the two-dimension code watermark into an area, which is similar to the color of the two-dimension code watermark, in the original display frame based on the color of the two-dimension code watermark and the color of each area in the original display frame to be displayed on a screen of the terminal.
4. The method of claim 1, wherein the embedding the two-dimensional code watermark into an original display frame to be displayed on a screen of a terminal comprises:
and embedding the two-dimension code watermark into a specified area in an original display frame to be displayed on a screen of the terminal, wherein the specified area is different from an area where the two-dimension code watermark is located in a previous display frame containing the two-dimension code watermark.
5. The method of claim 4, wherein the designated area is a corresponding area of an area where the two-dimensional code watermark is located in a previous display frame containing the two-dimensional code watermark.
6. The method as claimed in claim 4, wherein the number of display frames of the difference between the frame to be displayed and the previous display frame containing the two-dimensional code watermark is within a preset number range.
7. The method of any of claims 1-6, wherein the specified information is traceability information; or, the specified information is information to be transmitted.
8. The method of claim 7, wherein the traceability information includes a terminal identification of the terminal.
9. The method of claim 8, wherein the traceability information further comprises at least one of:
user login information of the terminal;
the current time.
10. An information extraction method, comprising:
acquiring a picture obtained by shooting a display frame displayed on a screen of a terminal, wherein a two-dimensional code watermark capable of representing specified information is embedded in the display frame, and the two-dimensional code watermark is obtained by performing two-dimensional code coding on the specified information;
extracting the two-dimension code watermark from the picture;
and identifying the specified information from the two-dimensional code watermark.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024040474A1 (en) * | 2022-08-24 | 2024-02-29 | 京东方科技集团股份有限公司 | Encrypted image watermark processing method and apparatus, and display device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107911753A (en) * | 2017-11-28 | 2018-04-13 | 百度在线网络技术（北京）有限公司 | Method and apparatus for adding digital watermarking in video |
| CN107911641A (en) * | 2017-10-27 | 2018-04-13 | 北京达佳互联信息技术有限公司 | Video watermark generation method, device and terminal |
| CN107995384A (en) * | 2017-11-23 | 2018-05-04 | 晨星半导体股份有限公司 | Video tamper resistant method, video capture equipment and video verification method |
| CN110969563A (en) * | 2018-09-28 | 2020-04-07 | 浙江大学 | Watermark embedding method, watermark extracting method, watermark embedding device, watermark extracting equipment and data processing method |
| CN111294543A (en) * | 2018-11-21 | 2020-06-16 | 慧盾信息安全科技（苏州）股份有限公司 | System and method for video monitoring photographing protection |
| CN112040337A (en) * | 2020-09-01 | 2020-12-04 | 腾讯科技（深圳）有限公司 | Video watermark adding and extracting method, device, equipment and storage medium |
| CN112468715A (en) * | 2020-10-26 | 2021-03-09 | 国网天津市电力公司 | Video tracing system and video tracing method |
-
2021
- 2021-05-13 CN CN202110523119.7A patent/CN113379582A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107911641A (en) * | 2017-10-27 | 2018-04-13 | 北京达佳互联信息技术有限公司 | Video watermark generation method, device and terminal |
| CN107995384A (en) * | 2017-11-23 | 2018-05-04 | 晨星半导体股份有限公司 | Video tamper resistant method, video capture equipment and video verification method |
| CN107911753A (en) * | 2017-11-28 | 2018-04-13 | 百度在线网络技术（北京）有限公司 | Method and apparatus for adding digital watermarking in video |
| CN110969563A (en) * | 2018-09-28 | 2020-04-07 | 浙江大学 | Watermark embedding method, watermark extracting method, watermark embedding device, watermark extracting equipment and data processing method |
| CN111294543A (en) * | 2018-11-21 | 2020-06-16 | 慧盾信息安全科技（苏州）股份有限公司 | System and method for video monitoring photographing protection |
| CN112040337A (en) * | 2020-09-01 | 2020-12-04 | 腾讯科技（深圳）有限公司 | Video watermark adding and extracting method, device, equipment and storage medium |
| CN112468715A (en) * | 2020-10-26 | 2021-03-09 | 国网天津市电力公司 | Video tracing system and video tracing method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024040474A1 (en) * | 2022-08-24 | 2024-02-29 | 京东方科技集团股份有限公司 | Encrypted image watermark processing method and apparatus, and display device |
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