CN114302072B - Blackboard writing content processing method and device and electronic equipment - Google Patents
Blackboard writing content processing method and device and electronic equipment Download PDFInfo
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Abstract
The application discloses a processing method, a device and electronic equipment of book contents, wherein the method comprises the following steps: determining a first area image from the prerecorded blackboard writing image, wherein the first area image comprises at least one first input trace; determining a second area image in the blackboard writing image according to the input time and/or the input semantics of the first input trace; and displaying the first area image and the second area image according to a preset display mode.
Description
Technical Field
The application relates to the technical field of intelligent education, in particular to a method and a device for processing book contents and electronic equipment.
Background
In teaching using a writing board, writing can be performed on the writing board.
However, the writing on writing boards is often out of order, which is inconvenient for post-lesson arrangement of knowledge points in the writing.
Disclosure of Invention
In view of this, the present application provides a method and apparatus for processing a book content, and an electronic device, as follows:
a method of processing book content, comprising:
determining a first area image from the prerecorded blackboard writing image, wherein the first area image comprises at least one first input trace;
determining a second area image in the blackboard writing image according to the input time and/or the input semantics of the first input trace;
and displaying the first area image and the second area image according to a preset display mode.
In the above method, preferably, the second area image includes: at least one second input trace;
wherein the input time of the second input trace and the input time of the first input trace meet a first condition; and/or the number of the groups of groups,
the input semantics of the second input trace and the input semantics of the first input trace meet a second condition.
In the above method, preferably, displaying the second area image includes:
obtaining a first display parameter of the first area image;
and displaying the second area image by using a second display parameter corresponding to the first display parameter.
In the above method, preferably, the first input trace in the first area image is determined according to an input operation for the blackboard-writing image;
or, the first input trace in the first area image is determined according to the line-of-sight direction of the user of the blackboard writing image.
The method, preferably, determines the first area image from the prerecorded blackboard writing image, including:
determining a first area image from a plurality of area images in the prerecorded blackboard-writing image;
the method comprises the steps that an area image in the blackboard-writing image is determined based on the input time of input marks in the blackboard-writing image, the area image comprises at least one input mark, and the input time of the input marks in the same area image meets a third condition.
The method, preferably, determines the first area image from the prerecorded blackboard writing image, including:
determining a first area image from a plurality of area images in the prerecorded blackboard-writing image;
wherein the method further comprises:
typesetting the region images in the blackboard-writing images, wherein the typesetting sequence among the region images corresponds to the relation between the input time of the input trace in the region images.
In the above method, preferably, typesetting the area image in the blackboard-writing image includes:
obtaining the region time corresponding to the region image in the blackboard-writing image according to the input time of the input trace in the region image;
and typesetting the region images according to the region time, wherein the first sequence among the region images corresponds to the second sequence, and the second sequence is the sequence among the region times corresponding to the region images.
In the above method, preferably, the region time corresponding to the region image is: any one of the input times or the center time of the input trace in the area image.
A processing apparatus for book content, comprising:
the first determining unit is used for determining a first area image from the prerecorded blackboard writing image, wherein the first area image comprises at least one first input trace;
the second determining unit is used for determining a second area image in the blackboard-writing image according to the input time and/or the input semantics of the first input trace;
and the image output unit is used for displaying the first area image and the second area image according to a preset display mode.
An electronic device, comprising:
a memory for storing a computer program and data resulting from the execution of the computer program;
a processor for executing the computer program to implement: determining a first area image from the prerecorded blackboard writing image, wherein the first area image comprises at least one first input trace; determining a second area image in the blackboard writing image according to the input time and/or the input semantics of the first input trace; and displaying the first area image and the second area image according to a preset display mode.
According to the technical scheme, in the processing method, the processing device and the electronic equipment for the blackboard writing content, after the first area image containing at least one input trace is determined in the blackboard writing image, the second area image in the blackboard writing image is determined according to the input time and/or the input semantics of the input trace in the first area image. Therefore, different area images in the blackboard-writing image can be determined according to the input time and/or the input semantics of the input trace, so that the disorder phenomenon among the area images in the blackboard-writing image is avoided, and the user can conveniently arrange the content presented by the blackboard-writing image.
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In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a flowchart of a method for processing content of a board according to an embodiment of the present application;
FIG. 2 is an exemplary diagram of an blackboard writing image suitable for use in an intelligent teaching scenario;
FIG. 3 is an exemplary diagram of a first region image suitable for use in the intelligent teaching scenario of the present application;
FIG. 4 is an exemplary diagram of a first region image and a second region image suitable for use in the intelligent teaching scene of the present application;
fig. 5 and fig. 6 are respectively exemplary diagrams of displaying a first area image and a second area image in an intelligent teaching scene according to the present application;
FIGS. 7 and 8 are respectively exemplary diagrams of determining a first region image in an intelligent teaching scene according to the present application;
FIGS. 9 and 10 are respectively exemplary diagrams of typesetting board book images in the intelligent teaching scene;
fig. 11 is a schematic structural diagram of a processing device for content of a board provided in the second embodiment of the present application;
fig. 12 is a schematic structural diagram of an electronic device according to a third embodiment of the present application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
Referring to fig. 1, a flowchart of an implementation of a method for processing content of a board provided in an embodiment of the present application may be applicable to an electronic device capable of processing an image, such as a mobile phone, a pad, a smart large screen, a notebook, a computer, or a server. The technical scheme in the embodiment is mainly used for avoiding the disorder phenomenon between the blackboard-writing images, and is convenient for users to arrange the content presented by the blackboard-writing images.
Specifically, the method in this embodiment may include the following steps:
step 101: from the pre-recorded board writing images, a first area image is determined.
The board book image is an image obtained by recording the board book content. For example, as shown in fig. 2, in an intelligent teaching scene, a teacher handwriting the blackboard writing content on a large screen, and the large screen records images of the blackboard writing content written by the teacher, so as to obtain a teaching blackboard writing image containing the whole board writing content.
And the first area image comprises at least one first input trace. For example, as shown in fig. 3, in the teaching blackboard writing image, the determined first area image includes multiple input traces written by the teacher, including the related contents of the set a and the set B.
Step 102: and determining a second area image in the blackboard-writing image according to the input time and/or the input semantics of the first input trace.
The input time of the first input trace refers to the time written in the blackboard writing content, and can be specifically expressed based on the time, month, day, minute and second recorded by a clock in the electronic device, for example, 2021, 12, 2, 9, 23, 48, etc.; the presentation may be based on a relative time from a start time when the contents of the blackboard are written, for example, 23 minutes and 48 seconds from the start time when the contents of the blackboard are written.
And the input semantics of the first input trace refer to the meaning expressed by the first input trace. For example, set A, complement of set B and set B, and the like.
Based on this, the second area image related to the first area image can be determined in accordance with the input time and/or input semantics of the input trace in the first area image. Thus, even if there is a positional confusion between the area images to which the input trace belongs in the blackboard-writing image, a second area image associated with the input time and/or the input semantics can be determined for the first area image.
For example, as shown in fig. 4, the second region image is determined according to the input time and/or input semantics of the input traces of the set a and the set B in the first region image, which include the input traces describing the other contents of the set a and the set B.
Step 103: and displaying the first area image and the second area image according to a preset display mode.
The preset display mode is a display mode related to a current display mode of the blackboard-writing image, for example, the preset display mode is different from the current display mode of the blackboard-writing image, and further the first area image and the second area image are displayed in a different mode in the blackboard-writing image, so that the determined area image is highlighted for a user.
For example, as shown in fig. 5, the first area image and the second area image are displayed in different background colors with respect to the board book image, the first area image and the second area image are displayed in orange as background colors, the board book image is still displayed in green as background colors, and the user is prompted to watch the corresponding contents in a conspicuous manner.
According to the technical scheme, in the processing method of the board book content provided by the first embodiment of the application, after the first area image containing at least one input trace is determined in the board book image, the second area image in the board book image is determined according to the input time and/or the input semantics of the input trace in the first area image. Therefore, different area images in the blackboard-writing image can be determined according to the input time and/or the input semantics of the input trace, so that the disorder phenomenon among the area images in the blackboard-writing image is avoided, and the user can conveniently arrange the content presented by the blackboard-writing image.
In one implementation, the second area image includes at least one second input trace, and based on this, the determined second area image and the first area image satisfy the following conditions with respect to the input trace included in each of them:
the input time of the second input trace and the input time of the first input trace meet a first condition; and/or the input semantics of the second input trace and the input semantics of the first input trace meet the second condition.
The first condition may be that a time difference between an input time of the second input trace and an input time of the first input trace is less than or equal to a first time length threshold; the second condition may be that a semantic similarity between the input semantics of the second input trace and the input semantics of the first input trace is greater than or equal to a similarity threshold.
Based on this, in an alternative embodiment, according to the input time of the first input trace, in the second area image determined in the board image, the time difference between the second input trace and the first input trace in the input time is less than or equal to the first time threshold, that is, the area image where the second input trace whose input time is close to the first input trace is determined in the board image is used as the second area image;
in another optional embodiment, according to the input semantics of the first input trace, in a second area image determined in the board writing image, the semantic similarity between the second input trace and the first input trace in the input semantics is greater than or equal to a similarity threshold, namely, the area image where the second input trace with the input semantics similar to the first input trace is determined in the board writing image is used as the second area image;
in another optional embodiment, according to the input time and the input semantics of the first input trace, in a second area image determined in the board image, a time difference between the second input trace and the first input trace in the input time is smaller than or equal to a first time length threshold, and the semantic similarity between the second input trace and the first input trace in the input semantics is greater than or equal to a similarity threshold, namely, an area image where the second input trace, the input time of which is close to the first input trace and the input semantics of which are similar to the first input trace, is determined in the board image, is used as the second area image.
In one implementation, in step 103, when displaying the second area image, a first display parameter of the first area image may be obtained first, and the second area image may be displayed with a second display parameter corresponding to the first display parameter.
The display parameter may include any one or more of a background color parameter, an input trace color, a background color luminance, an input trace luminance, and the like.
Specifically, the first display parameter is a parameter different from the display parameters of other area images of the blackboard-writing image, that is, the first area image is highlighted in the blackboard-writing image according to the first display parameter.
Based on this, the second display parameter may coincide with the first display parameter, whereby the second area image is displayed with the same display parameter that is distinguished from the other area images in the blackboard-writing image, whereby the first area image and the second area image are made to be highlighted in the blackboard-writing image. As shown in fig. 5, the first area image and the second area image are displayed with orange as a background color, and the blackboard-writing image is still displayed with green as a background color.
Alternatively, the second display parameter may be inconsistent with the first display parameter, and the second display parameter is a parameter that is different from the display parameter of the other area image of the board image, thereby causing the first area image and the second area image to be respectively highlighted in the board image, as shown in fig. 6, the first area image being displayed with orange as a background color, the second area image being displayed with blue as a background color, and the board image still being displayed with green as a background color.
In one implementation, the first input trace in the first region image is determined from an input operation for the blackboard writing image. The input operation is operations such as clicking or selecting performed by a user on the blackboard-writing image, and is used for selecting an input trace therein, and based on the input trace, a first area image in the blackboard-writing image is determined.
That is, in the present embodiment, first, the first input trace is determined according to the input operation for the board image, and then the area image in which the first input trace is located is determined as the first area image.
For example, as shown in fig. 7, the user selects one of the input trace "a" in the blackboard-writing image by a mouse or touch, and determines the area image in which the input trace is located as the first area image.
In another implementation, the first input trace in the first region image is determined from a user line of sight of the blackboard-writing image. The user sight line can be identified through a camera and other devices on the electronic equipment, further, an input trace corresponding to the user sight line is determined to be a first input trace, and an area image where the first input trace is located is determined to be a first area image.
For example, as shown in fig. 8, the user views input marks such as input marks "a" and "B" in the board image, whereby the area image in which the input marks are located is determined as the first area image.
In one implementation, when determining the first area image from the prerecorded board writing image in step 101, the method specifically may be: a first region image is determined from a plurality of region images in the pre-recorded blackboard-writing image.
For example, in the present embodiment, the first input trace may be first determined according to an input operation for the board image or a line of sight of a user of the board image, and then, the area image in which the first input trace is located may be determined as the first area image among the plurality of area images included in the board image.
And the area images included in the blackboard-writing image may be determined based on the input time of the input trace in the blackboard-writing image, whereby at least one input trace is included in each area image and the input time of the input trace in the same area image satisfies the third condition.
Wherein the third condition may be: the time difference between the input trace with respect to the input time is less than or equal to a second duration threshold, where the second duration threshold may be less than or equal to the first duration threshold. That is, in the present embodiment, input marks in an blackboard-writing image are divided according to input time, input marks whose input time is close are divided into one group, and a region where an input mark in the same group is located is divided into one region image, thereby obtaining a plurality of region images in the blackboard-writing image. For example, as shown in fig. 9, input marks in an board book image are divided in the order of the input times and the time difference between the input times, and the area where the input marks such as "a" and "B" divided into the same group are located is divided into one area image.
Further, based on the implementation manner that the board-book image includes a plurality of area images, in this embodiment, the area images in the board-book image may be typeset, and after typesetting, the typesetting sequence between the area images corresponds to a relationship between input times of input traces in the area images.
That is, in this embodiment, the region images are typeset according to the order of the input times of the input traces included in the region images, so as to obtain the typeset blackboard-writing image of the region images, and after outputting the typeset blackboard-writing image, the user can more intuitively view the blackboard-writing content.
Specifically, when typesetting the region images in the board book images, the region time corresponding to the region images in the board book images can be obtained according to the input time of the input traces in the region images, then typesetting the region images according to the region time, wherein the first sequence and the second sequence between the typeset region images correspond, and the second sequence is the sequence between the region times corresponding to the region images.
The region time corresponding to the region image may be: any one of the input times of the input trace in the area image or the center time.
That is, in this embodiment, the region images are typeset according to the input time sequence of the input traces included in the region images, so that the typesetting sequence between the region images is consistent with the sequence between the input times of the corresponding input traces.
For example, as shown in fig. 10, the time when the region image is input is characterized by taking the maximum time of the input times of the input traces contained in the region image as the region time corresponding to the region image, based on this, each region image in the board image is typeset in the order from the smaller to the larger region time, the region image with the smallest region time is typeset at the forefront, and the region image with the largest region time is typeset at the last, so that each region image is typeset successively according to the corresponding time in the obtained newly typeset board image.
Referring to fig. 11, a schematic structural diagram of a processing device for content of a board provided in the second embodiment of the present application may be configured in an electronic device capable of processing images, such as a mobile phone, a pad, a smart screen, a notebook, a computer, or a server. The technical scheme in the embodiment is mainly used for avoiding the disorder phenomenon between the blackboard-writing images, and is convenient for users to arrange the content presented by the blackboard-writing images.
Specifically, the apparatus in this embodiment may include the following units:
a first determining unit 1101 configured to determine a first area image from prerecorded board writing images, where the first area image includes at least one first input trace;
a second determining unit 1102, configured to determine a second area image in the blackboard-writing image according to the input time and/or the input semantics of the first input trace;
an image output unit 1103 is configured to display the first area image and the second area image according to a preset display mode.
According to the technical scheme, in the processing device for the blackboard writing content provided by the second embodiment of the application, after the first area image containing at least one input trace is determined in the blackboard writing image, the second area image in the blackboard writing image is determined according to the input time and/or the input semantics of the input trace in the first area image. Therefore, different area images in the blackboard-writing image can be determined according to the input time and/or the input semantics of the input trace, so that the disorder phenomenon among the area images in the blackboard-writing image is avoided, and the user can conveniently arrange the content presented by the blackboard-writing image.
In one implementation, the second region image includes: at least one second input trace; wherein the input time of the second input trace and the input time of the first input trace meet a first condition; and/or the input semantics of the second input trace and the input semantics of the first input trace meet a second condition.
In one implementation, the image output unit 1103 displays the second area image, specifically for: obtaining a first display parameter of the first area image; and displaying the second area image by using a second display parameter corresponding to the first display parameter.
In one implementation, a first input trace in the first region image is determined from an input operation for the blackboard-writing image; or, the first input trace in the first area image is determined according to the line-of-sight direction of the user of the blackboard writing image.
In one implementation, the first determining unit 1101 determines a first area image from the prerecorded board writing image, specifically for: determining a first area image from a plurality of area images in the prerecorded blackboard-writing image; the method comprises the steps that an area image in the blackboard-writing image is determined based on the input time of input marks in the blackboard-writing image, the area image comprises at least one input mark, and the input time of the input marks in the same area image meets a third condition.
In one implementation, the first determining unit 1101 determines a first area image from the prerecorded board writing image, specifically for: determining a first area image from a plurality of area images in the prerecorded blackboard-writing image; wherein the image output unit 1103 is further configured to: typesetting the region images in the blackboard-writing images, wherein the typesetting sequence among the region images corresponds to the relation between the input time of the input trace in the region images.
In one implementation, the image output unit 1103 performs typesetting on the area image in the blackboard-writing image, specifically for: obtaining the region time corresponding to the region image in the blackboard-writing image according to the input time of the input trace in the region image; and typesetting the region images according to the region time, wherein the first sequence among the region images corresponds to the second sequence, and the second sequence is the sequence among the region times corresponding to the region images.
In one implementation, the region time corresponding to the region image is: any one of the input times or the center time of the input trace in the area image.
It should be noted that, the specific implementation of each unit in this embodiment may refer to the corresponding content in the foregoing, which is not described in detail herein.
Referring to fig. 12, a schematic structural diagram of an electronic device according to a third embodiment of the present application may be an electronic device capable of processing images, such as a mobile phone, a pad, a smart screen, a notebook, a computer, or a server. The technical scheme in the embodiment is mainly used for avoiding the disorder phenomenon between the blackboard-writing images, and is convenient for users to arrange the content presented by the blackboard-writing images.
Specifically, the electronic device in this embodiment may include the following structure:
a memory 1201 for storing a computer program and data resulting from the execution of the computer program;
a processor 1202 for executing the computer program to implement: determining a first area image from the prerecorded blackboard writing image, wherein the first area image comprises at least one first input trace; determining a second area image in the blackboard writing image according to the input time and/or the input semantics of the first input trace; and displaying the first area image and the second area image according to a preset display mode.
Of course, other structures, such as a communication module, a display screen, etc., may also be included in the electronic device.
According to the technical scheme, in the electronic device for the board book content provided by the third embodiment of the application, after the first area image containing at least one input trace is determined in the board book image, the second area image in the board book image is determined according to the input time and/or the input semantics of the input trace in the first area image. Therefore, different area images in the blackboard-writing image can be determined according to the input time and/or the input semantics of the input trace, so that the disorder phenomenon among the area images in the blackboard-writing image is avoided, and the user can conveniently arrange the content presented by the blackboard-writing image.
Taking electronic equipment as a large screen in a teaching scene as an example, aiming at the defect that when the board book content is disordered, a user is difficult to read back the board book image, the technical scheme of the application provides that when the board book is read back, the content relevant to the time when the content is being watched is highlighted.
The specific implementation scheme is as follows:
first, when the writing content is stored, not only bitmap information of the writing content, that is, the writing image in the previous text, but also writing time sequence information of each input trace in the writing image, that is, input time of the input trace in the previous text are stored. Based on this, there are two processing methods for the book image:
in the first processing mode, when the book image is read back, the content which is watched by the user, namely the first area image in the previous text, is determined. Specifically, the position can be determined by clicking a mouse, or can be determined by eye movement and the like; thereafter, the content being viewed, and the content having a timing close thereto, that is, the second area image in the foregoing, are simultaneously highlighted.
In the second processing mode, the input trace in the blackboard-writing image is divided into a plurality of area images in the blackboard-writing image according to the input time of the input trace, namely trace writing time sequence, then the divided content blocks, namely the area images, are rearranged according to the time sequence of the input trace, and the position sequence is adjusted to be consistent with the time sequence.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant points refer to the description of the method section.
Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative elements and steps are described above generally in terms of functionality in order to clearly illustrate the interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. The software modules may be disposed in Random Access Memory (RAM), memory, read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. A method of processing book content, comprising:
determining a first area image from prerecorded blackboard writing images, wherein the first area image comprises at least one first input trace, and the first input trace in the first area image is determined according to the input operation for the blackboard writing images; or determining a first input trace in the first area image according to the sight direction of a user of the board book image, wherein the board book image is an image obtained by recording the board book content;
determining a second area image in the blackboard writing image according to the input time and/or the input semantics of the first input trace;
displaying the first area image and the second area image according to a preset display mode to highlight the determined first area image and second area image, wherein displaying the second area image comprises the following steps: obtaining a first display parameter of the first area image; and displaying the second region image by using a second display parameter corresponding to the first display parameter, wherein the display parameter comprises any one or more of a background color parameter, an input trace color, background color brightness and input trace brightness.
2. The method of claim 1, the second region image comprising: at least one second input trace;
wherein the input time of the second input trace and the input time of the first input trace meet a first condition; and/or the number of the groups of groups,
the input semantics of the second input trace and the input semantics of the first input trace meet a second condition.
3. The method of claim 1 or 2, determining a first region image from a pre-recorded blackboard-writing image, comprising:
determining a first area image from a plurality of area images in the prerecorded blackboard-writing image;
the method comprises the steps that an area image in the blackboard-writing image is determined based on the input time of input marks in the blackboard-writing image, the area image comprises at least one input mark, and the input time of the input marks in the same area image meets a third condition.
4. The method of claim 1 or 2, determining a first region image from a pre-recorded blackboard-writing image, comprising:
determining a first area image from a plurality of area images in the prerecorded blackboard-writing image;
wherein the method further comprises:
typesetting the region images in the blackboard-writing images, wherein the typesetting sequence among the region images corresponds to the relation between the input time of the input trace in the region images.
5. The method of claim 4, typesetting the region image in the board book image, comprising:
obtaining the region time corresponding to the region image in the blackboard-writing image according to the input time of the input trace in the region image;
and typesetting the region images according to the region time, wherein the first sequence among the region images corresponds to the second sequence, and the second sequence is the sequence among the region times corresponding to the region images.
6. The method of claim 5, wherein the region time corresponding to the region image is: any one of the input times or the center time of the input trace in the area image.
7. A processing apparatus for book content, comprising:
the first determining unit is used for determining a first area image from prerecorded blackboard-writing images, the first area image comprises at least one first input trace, and the first input trace in the first area image is determined according to the input operation for the blackboard-writing images; or determining a first input trace in the first area image according to the sight direction of a user of the board book image, wherein the board book image is an image obtained by recording the board book content;
the second determining unit is used for determining a second area image in the blackboard-writing image according to the input time and/or the input semantics of the first input trace;
the image output unit is used for displaying the first area image and the second area image according to a preset display mode so as to highlight the determined first area image and second area image, wherein the image output unit is used for displaying the second area image and is specifically used for: obtaining a first display parameter of the first area image; and displaying the second region image by using a second display parameter corresponding to the first display parameter, wherein the display parameter comprises any one or more of a background color parameter, an input trace color, background color brightness and input trace brightness.
8. An electronic device, comprising:
a memory for storing a computer program and data resulting from the execution of the computer program;
a processor for executing the computer program to implement: determining a first area image from prerecorded blackboard writing images, wherein the first area image comprises at least one first input trace, and the first input trace in the first area image is determined according to the input operation for the blackboard writing images; or determining a first input trace in the first area image according to the sight direction of a user of the board book image, wherein the board book image is an image obtained by recording the board book content; determining a second area image in the blackboard writing image according to the input time and/or the input semantics of the first input trace; displaying the first area image and the second area image according to a preset display mode to highlight the determined first area image and second area image, wherein displaying the second area image comprises the following steps: obtaining a first display parameter of the first area image; and displaying the second region image by using a second display parameter corresponding to the first display parameter, wherein the display parameter comprises any one or more of a background color parameter, an input trace color, background color brightness and input trace brightness.
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| CN111311972A (en) * | 2019-11-13 | 2020-06-19 | 天津大学 | Blackboard writing synchronization method |
| CN113625985A (en) * | 2021-08-25 | 2021-11-09 | 京东方科技集团股份有限公司 | Display method and device of intelligent blackboard and intelligent blackboard |
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| JP2009184326A (en) * | 2008-02-08 | 2009-08-20 | Toshiba Tec Corp | Electronic blackboard, and electronic blackboard system |
| JP2014109922A (en) * | 2012-12-03 | 2014-06-12 | Sharp Corp | Electronic blackboard |
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