CN109215098A - Handwriting erasing method and apparatus - Google Patents
Handwriting erasing method and apparatus Download PDFInfo
- Publication number
- CN109215098A CN109215098A CN201810948890.7A CN201810948890A CN109215098A CN 109215098 A CN109215098 A CN 109215098A CN 201810948890 A CN201810948890 A CN 201810948890A CN 109215098 A CN109215098 A CN 109215098A
- Authority
- CN
- China
- Prior art keywords
- erasing
- pixel
- handwriting
- track
- color values
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T11/00—2D [Two Dimensional] image generation
- G06T11/80—Creating or modifying a manually drawn or painted image using a manual input device, e.g. mouse, light pen, direction keys on keyboard
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/90—Determination of colour characteristics
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/10—Image acquisition modality
- G06T2207/10024—Color image
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Computer Vision & Pattern Recognition (AREA)
- User Interface Of Digital Computer (AREA)
- Drawing Aids And Blackboards (AREA)
Abstract
The invention discloses a kind of handwriting erasing method and apparatus.Wherein, this method comprises: record erasing track, wherein erasing track covers the different pixel of multiple color values；According to the quantity of the pixel of each color value of erasing track covering, the most target color values of pixel are determined；Erasing operation is executed according to target color values.The present invention solves the technical issues of one such color can not be selected to execute erasing operation when person's handwriting is overlapped in the prior art.
Description
Technical field
The present invention relates to the control fields of intelligent interaction plate, in particular to a kind of handwriting erasing method and apparatus.
Background technique
It is write in user using a kind of person's handwriting of color, and after being annotated using the person's handwriting of other colors, such as
The content of fruit annotation is covered on former written handwriting, then the mutual superimposed situation of person's handwriting of multiple color occurs.In this way
In the case where, if user only wants to wipe the person's handwriting of one such color, cannot achieve in the prior art.
For one such color can not be selected to execute asking for erasing operation when person's handwriting is overlapped in the prior art
Topic, currently no effective solution has been proposed.
Summary of the invention
The embodiment of the invention provides a kind of handwriting erasing method and apparatus, at least to solve in the prior art when person's handwriting goes out
The technical issues of one such color can not be selected to execute erasing operation when being now overlapped.
According to an aspect of an embodiment of the present invention, a kind of handwriting erasing method is provided, comprising: record erasing track,
Wherein, erasing track covers the different pixel of multiple color values；According to the pixel of each color value of erasing track covering
Quantity, determine the most target color values of pixel；Erasing operation is executed according to target color values.
Further, erasing operation is executed according to target color values, comprising: the pixel of erasing erasing track covering；It is right
In the pixel being wiped free of, color value is not that the pixel of target color values carries out rollback processing.
Further, segment processing is carried out to erasing track, in the pixel of each color value covered according to erasing track
The quantity of point, before determining the most target color values of pixel, detects whether the current record time reaches the corresponding time
Threshold value；If recording arrival time time threshold value, it is determined that when the erasing track record of leading portion is completed, into according to erasing track
The quantity of the pixel of each color value of covering, otherwise continues to record at the step of determining pixel most target color values
When the erasing track of leading portion.
Further, before whether the detection current record time reaches the corresponding preset record time, acquisition is worked as
The corresponding time threshold of erasing person's handwriting of leading portion, comprising: if section wipes person's handwriting headed by the erasing person's handwriting of leading portion, work as leading portion
The corresponding time threshold of erasing person's handwriting be preset initial time threshold value；If when the erasing person's handwriting of leading portion is not first section erasing
Person's handwriting then obtains in the preceding paragraph erasing person's handwriting, wipes the speed of service of control, and according to the speed of service, determines the wiping for working as leading portion
Except the corresponding time threshold of person's handwriting, wherein when the corresponding time threshold of erasing person's handwriting and the speed of service of leading portion are closed in inverse proportion
System.
Further, it obtains in the preceding paragraph erasing person's handwriting, wipes the speed of service of control, comprising: wipe according to the preceding paragraph
The corresponding time threshold of person's handwriting, and erasing control wipe the quantity at the control point generated in person's handwriting in the preceding paragraph, determine erasing control
The speed of service of part.
According to another aspect of an embodiment of the present invention, a kind of handwriting erasing method is additionally provided, comprising: record erasing rail
Mark, wherein erasing track covers the different pixel of multiple color values；The interior of all pixels point of track covering is wiped in erasing
Hold；According to the quantity of the pixel of each color value of erasing track covering, the most target color values of pixel are determined；It redraws
The pixel of all colours value in addition to target color values.
According to another aspect of an embodiment of the present invention, a kind of handwriting erasing device is additionally provided, comprising: logging modle is used
Track is wiped in record, wherein erasing track covers the different pixel of multiple color values；Determining module, for according to erasing
The quantity of the pixel of each color value of track covering, determines the most target color values of pixel；Module is wiped, root is used for
Erasing operation is executed according to target color values.
Further, it is determined that module includes: lookup submodule, for searching picture in the color value for being wiped free of track covering
The most color value of vegetarian refreshments；Submodule is determined, for determining that most color values is target color values.
Further, erasing module includes: erasing submodule, for wiping the pixel of erasing track covering；Rollback
Module, for in the pixel being wiped free of, color value not to be that the pixel of target color values carries out rollback processing.
According to another aspect of an embodiment of the present invention, a kind of handwriting erasing device is additionally provided characterized by comprising
Logging modle, for recording erasing track, wherein erasing track covers the different pixel of multiple color values；Module is wiped, is used
In the content of all pixels point of erasing erasing track covering；Determining module, for each color according to the covering of erasing track
The quantity of the pixel of value determines the most target color values of pixel；Module is redrawn, for redrawing in addition to target color values
All colours value pixel.
According to another aspect of an embodiment of the present invention, a kind of storage medium is additionally provided, which is characterized in that storage medium packet
Include the program of storage, wherein equipment where control storage medium executes following steps in program operation: record erasing track,
Wherein, erasing track covers the different pixel of multiple color values；According to the pixel of each color value of erasing track covering
Quantity, determine the most target color values of pixel；Erasing operation is executed according to target color values.
According to another aspect of an embodiment of the present invention, a kind of processor is additionally provided, which is characterized in that processor is for transporting
Line program, wherein program executes following steps when running: record erasing track, wherein erasing track covers multiple color values not
Same pixel；According to the quantity of the pixel of each color value of erasing track covering, the most target face of pixel is determined
Color value；Erasing operation is executed according to target color values.
In embodiments of the present invention, track is wiped by record, according to the pixel of each color value of erasing track covering
The quantity of point, determines the most target color values of pixel；Erasing operation is executed according to target color values, is only wiped to reach
Except the effect of one of multiple color value color value, namely realize the purpose finely wiped, solve in the prior art when
Person's handwriting can not select one such color to execute erasing operation when being overlapped the technical issues of.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, this hair
Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the flow chart of a kind of according to embodiments of the present invention 1 handwriting erasing method；
Fig. 2 is a kind of schematic diagram at according to embodiments of the present invention 1 blank interface with written handwriting；
Fig. 3 is a kind of schematic diagram of according to embodiments of the present invention 1 erasing track；
Fig. 4 is that the example according to embodiments of the present invention 1 a kind of couple of Fig. 3 carries out erasing treated schematic diagram；
Fig. 5 is a kind of flow chart of the according to embodiments of the present invention 2 handwriting erasing methods provided；
Fig. 6 is a kind of flow chart of the according to embodiments of the present invention 3 handwriting erasing methods provided；
Fig. 7 is a kind of schematic diagram of the according to embodiments of the present invention 4 handwriting erasing devices provided；
Fig. 8 is a kind of schematic diagram of the according to embodiments of the present invention 5 handwriting erasing devices provided；And
Fig. 9 is a kind of schematic diagram of the according to embodiments of the present invention 6 handwriting erasing devices provided.
Specific embodiment
In order to enable those skilled in the art to better understand the solution of the present invention, below in conjunction in the embodiment of the present invention
Attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only
The embodiment of a part of the invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
The model that the present invention protects all should belong in member's every other embodiment obtained without making creative work
It encloses.
It should be noted that description and claims of this specification and term " first " in above-mentioned attached drawing, "
Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that using in this way
Data be interchangeable under appropriate circumstances, so as to the embodiment of the present invention described herein can in addition to illustrating herein or
Sequence other than those of description is implemented.In addition, term " includes " and " having " and their any deformation, it is intended that cover
Cover it is non-exclusive include, for example, the process, method, system, product or equipment for containing a series of steps or units are not necessarily limited to
Step or unit those of is clearly listed, but may include be not clearly listed or for these process, methods, product
Or other step or units that equipment is intrinsic.
Embodiment 1
According to embodiments of the present invention, a kind of embodiment of handwriting erasing method is provided, it should be noted that in attached drawing
The step of process illustrates can execute in a computer system such as a set of computer executable instructions, although also,
Logical order is shown in flow chart, but in some cases, it can be to be different from shown by sequence execution herein or retouch
The step of stating.
Fig. 1 is the flow chart of handwriting erasing method according to an embodiment of the present invention.
Handwriting erasing method provided in this embodiment can be executed by writing display equipment, which shows that equipment can lead to
The mode for crossing software and/or hardware realizes that the writing shows that equipment can be two or more physical entities and constitute, and is also possible to
One physical entity is constituted.The writing shows that equipment can be computer, mobile phone, plate, projector or intelligent interaction plate etc..?
In embodiment, it is described so that intelligent interaction plate is to write display equipment as an example, wherein intelligent interaction plate, which can be, to be passed through
Touch technology is manipulated and is realized the integration apparatus of man-machine interactive operation to the content being shown on display plate, is integrated
The one or more functions such as projector, electronic whiteboard, curtain, sound equipment, television set and video conference terminal.
In embodiment, intelligent interaction plate and at least one external device (ED) establish data connection.Wherein, external device (ED) packet
It includes but is not limited to: mobile phone, laptop, USB flash drive, tablet computer and desktop computer etc..
It is not construed as limiting, can pass through in external device (ED) and the communication mode embodiment of the data connection of intelligent interaction plate
The communication modes such as USB connection, internet, local area network, bluetooth, Wi-Fi or purple peak agreement (ZigBee).
Further, intelligent interaction plate has touch screen, and touch screen can be that by the touching of single touch function
Screen is touched, such as: capacitance touch screen, electromagnetic touch screen are also possible to can be achieved at the same time capacitive sensing, electromagnetic induction and infrared sense
The touch screen answered.When touch screen of the user by finger touch intelligent interaction plate, the capacitance parameter of touch location becomes
Change, touching box determines finger in the touch location of touch screen according to the variation of capacitor；Alternatively, finger when contacting touching box, hinders
It has kept off infrared receiving end and has received infrared signal, touching box determines the touch location of finger according to the infrared signal being blocked；Again
Alternatively, electromagnetic induction occurs for the position that time writer is contacted with touch screen when user releases contact touch screen using time writer, from
And the variation of magnetic flux is generated, the electromagnetic screen of touching box determines the position of time writer contact touch screen according to the variation of magnetic flux.
Optionally, whiteboard applications software is installed in intelligent interaction plate, which can be pre-installed in
In above-mentioned intelligent interaction plate, it is also possible to be downloaded when intelligent interaction plate starts from third party device or server
And the writing class application software installed and used.Wherein, third party device is not construed as limiting in embodiment.Specifically, whiteboard applications
Software is used to obtain the finger of user or time writer is writing the operation in interface, obtains multiple controls depending on the user's operation
Point, and according to the written handwriting of control point generation user.Wherein, the written handwriting that intelligent interaction plate will additionally generate is shown in aobvious
In display screen, the parameters such as color, thickness of written handwriting shown by display screen can be whiteboard applications software default, can also be with
It is that user is selected before writing by controlling control.After generating written handwriting, whiteboard applications software provides erasing function,
For wiping the written handwriting having been displayed.The mode of erasing rubber erasing person's handwriting can be after user chooses erasing rubber, to move
Dynamic erasing rubber, so that the person's handwriting that the motion track covering of erasing rubber needs to wipe.According to the movement of erasing rubber, whiteboard applications software
0 is set by the color value of the pixel of erasing rubber covering, to achieve the effect that erasing writing person's handwriting.
As shown in connection with fig. 1, this method comprises the following steps:
Step S101, record erasing track, wherein erasing track covers the different pixel of multiple color values.
Specifically, above-mentioned color value can be rgb value, the pixel with different colours value shows different colors.Picture
Vegetarian refreshments is the basic unit that image is shown in display screen, and display screen is believed by position, color value, the brightness etc. for indicating pixel
Breath, to show complete image.
Above-mentioned erasing track is generated according to the motion track of erasing rubber.In an alternative embodiment, user's selection is white
Erasing rubber control in plate application software, then mobile in display interface using erasing rubber, intelligent interaction plate passes through detection rubber
The position that skin is wiped determines the motion track of erasing rubber, and the motion track of the erasing rubber detected is above-mentioned erasing track.More
Specifically, intelligent interaction plate detects multiple control points in moving process, thus according to control during erasing rubber is mobile
System point, which generates, wipes number track.
In above-mentioned steps, erasing track is covered on the pixel of multiple and different color values.Fig. 2 is real according to the present invention
A kind of schematic diagram at blank interface with written handwriting of example 1 is applied, as shown in connection with fig. 2, " beginning " is black writing person's handwriting,
It include red annotation line below black font (with thicker black lines example in figure).The pixel of " beginning " and lower section
The pixel for annotating line is the different pixel of color value.
Fig. 3 is a kind of schematic diagram for wiping track according to an embodiment of the present invention, as shown in connection with fig. 3, the rectangle frame in figure
For indicating that (the erasing track is given for example only, and actual erasing track is simultaneously opaque, is also not necessarily rule for erasing track
Shape), the erasing track of erasing rubber was both covered with the black pixel point of " beginning " in the example, also covered the red of annotation line
Colour vegetarian refreshments, it is determined that the erasing track covers two kinds of different pixels of color value.
Step S103 determines that pixel is most according to the quantity of the pixel of each color value of erasing track covering
Target color values.
The most target color values of above-mentioned pixel are for indicating the color value that this erasing operation finally needs to wipe.
There are multiple pixels on painting canvas, pixel rendering is really become corresponding color value by the display of person's handwriting, from
And make the position of pixel that color corresponding with color value be presented.If the pixel for wiping track covering is all same face
Color is then identified the handwriting according to erasing track and is wiped, but in step s101, erasing track covers a variety of different colours
The pixel of value, therefore in the case where the pixel with different colours value is closer or is overlapped, it is difficult to it only wipes wherein
One kind, therefore when user only needs to wipe the pixel of one of color value, it is thus necessary to determine that target color values.Its specific steps
Include:
Step S1031 searches the most color value of pixel in the color value for being wiped free of track covering.
In above-mentioned steps S1031, when user is wiped using erasing rubber, the biggish color value in region of erasing track covering
The as more color value of capped pixel.
Still by taking Fig. 3 as an example, erasing track covers the red pixel for going back two kinds of colors of black, in this example, covering
Red pixel quantity it is more, therefore red corresponding color value is the target color values of this erasing.
Step S1033 determines that most color values is target color values.
User when carrying out handwriting erasing, the person's handwriting that is wiped free of if necessary and other person's handwritings be closer or it is be overlapped,
It then wipes track and is difficult to other colors for avoiding needing to wipe, therefore wipe track to cover other colors for not needing erasing.
Although erasing track is difficult to avoid not needing the color of erasing, the most color of objects for not needing to be wiped free of yet covered,
Based on such supposition, determine that most color values of erasing track covering are target color values.
Above scheme determines according to the quantity of the pixel of erasing track covering different colours value and is wiped free of track covering number
Measuring most color values is the target color values that erasing is actually needed in user, to speculate that the color of erasing is actually needed in user
Value has achieved the purpose that predict user behavior.
In the example shown in fig, 3, erasing track covers the pixel of two kinds of different colours values, selects capped picture
The a fairly large number of red color value of vegetarian refreshments is target color values, but the example is merely to illustrate the principle of this programme, and this programme is not
The quantity of each color value of erasing track covering is specifically limited.
In a kind of particular embodiment, the quantity of the pixel value of two kinds of color vegetative coverages is identical, can choose first
The color value of a pixel for being wiped free of track covering is target color values.
Step S105 executes erasing operation according to target color values.
Above-mentioned steps be according to the target color values that predict, execute this erasing operation of user.It is specifically included:
Step S1051, the pixel of erasing erasing track covering.
Specifically, the pixel of erasing erasing track covering can be, the color value of the pixel of track covering will be wiped
It is set as 0, or sets the color value for wiping the pixel of track covering to the background colour of current painting canvas.
Step S1053, in the pixel being wiped free of, color value is not that the pixel of target color values carries out at rollback
Reason.
Specifically, rollback processing refers to restoring program or data to the behavior of laststate.In the side of the present embodiment
In case, rollback processing refers to not being that the pixels of target color values restores the laststate to erasing by color value.
After step S1051, color value is not that the pixel of target color values is also wiped free of together, and color value is not
Laststate for the pixel of target color values is non-erased state, therefore after step S1053, color value
Color value do not restore for the pixel of target color values again before.Therefore after entirely erasing process, painting canvas is finally opened up
It is showing as a result, be wiped free of with the pixels of target color values, be not retained for the pixel of target color values.
Fig. 4 is that the example according to embodiments of the present invention 1 a kind of couple of Fig. 3 carries out erasing treated schematic diagram, in conjunction with
Shown in Fig. 4, target color values are that red corresponding color value wipes rail after all pixels point of erasing erasing track covering
The red and black pixel point of mark covering are all wiped free of, after rollback is handled, the black pixel point quilt of non-targeted color value
Rollback obtains effect as shown in Figure 4.
In conjunction with Fig. 3 and 4 it is found that but passing through above-mentioned implementation even if overlapping occur in red person's handwriting and black handwriting in figure
The method that example provides realizes the effect for only wiping one of color.
The erasing mode that the above embodiments of the present application provide is wiped track by record, is covered according to the erasing track
Each color value pixel quantity, determine the most target color values of the pixel；According to the target color values
Erasing operation is executed, to achieve the effect that only to wipe one of multiple color value color value, namely realizes fine wiping
The purpose removed, solving can not select one such color to execute erasing operation when person's handwriting is overlapped in the prior art
Technical problem.
Embodiment 2
Fig. 5 is a kind of flow chart for handwriting erasing method that the embodiment of the present invention 2 provides.The present embodiment is in above-mentioned implementation
It is embodied on the basis of example 1.
The embodiment of the present application 1 provides solution can not select one such face when person's handwriting is overlapped in the prior art
Color executes the technical solution of the problem of erasing operation.According to step S1051 to step S1053 it is found that the program is in clear wiping
After all pixels point of person's handwriting covering, to rollback is not carried out for the pixel of target color values, user is produced in this way
It does not disappear first for the part of target color values, the visual effect occurred afterwards is influenced to reduce this visual effect bring, reached
To better display mode, the application also proposed the handwriting erasing method of embodiment 2.
In the handwriting erasing method of embodiment 2, person's handwriting is segmented and carries out segment processing, it is specifically described below.Ginseng
Fig. 5 is examined, the handwriting erasing method that embodiment 2 provides includes:
Step S501, record erasing track, wherein erasing track covers the different pixel of multiple color values.
Specifically, in the present solution, carrying out segment processing to the erasing track.
Step S503 obtains the corresponding time threshold of erasing person's handwriting for working as leading portion.
Specifically, above-mentioned time threshold is used to carry out segment processing to erasing person's handwriting, i.e., for remembering in a time threshold
The erasing track of record is handled, rather than is disposably all handled a continuous erasing track.It is specific to obtain
Mode is as follows:
Step S5031, if section wipes person's handwriting headed by the erasing person's handwriting of leading portion, when the erasing person's handwriting of leading portion is corresponding
Time threshold is preset initial time threshold value.
Specifically, above-mentioned when leading portion erasing pen mark is the erasing person's handwriting being currently recording, it is erasing that first section, which wipes person's handwriting,
In track, by the erasing person's handwriting of down point start recording.Since in a continuous erasing track, there is no first sections to wipe rail
Erasing track before mark, thus can not by the preceding paragraph wipe track in wipe control the speed of service to preferred pixel most
More time thresholds are referred to, therefore determine that means wipe the corresponding time threshold of person's handwriting by preset mode.
In an alternative embodiment, above-mentioned initial time threshold value can be preset, for example, can be 100ms.
If step S5033 obtains the preceding paragraph erasing pen described when the erasing person's handwriting of leading portion is not first section erasing pen mark
In mark, the speed of service of the erasing control, and according to the speed of service, it determines described when the erasing person's handwriting of leading portion is corresponding
Time threshold, wherein the corresponding time threshold of erasing person's handwriting when leading portion and the speed of service are at being in proportionate relationship.
Specifically, above-mentioned erasing control is after user selects erasing rubber, to be shown in the moveable erasing rubber for writing interface
Control, the erasing rubber interface are used for according to the control of user movement, and generate erasing track.
Since the time that user is wiped is usually all shorter, and the time threshold of above scheme selection is all in grade,
It can be considered that the mobile speed of erasing control is little in variation in continuous two sections of erasings track during erasing,
Therefore it is wiped by the preceding paragraph and wipes the erasing speed of control in track to judge to wipe the erasing speed of track when front end.
In order to which better display effect is presented, the pixel for allowing user not feel as non-targeted color value as far as possible disappears
The process occurred again, the erasing track for needing side to be suitable for a segment length is handled, while recording one section of erasing track, therefore
It is arranged when the corresponding time threshold of erasing person's handwriting of leading portion and the speed of service are in inversely prroportional relationship, i.e., if erasing control moves
Moved end fast speed, then it is shorter to correspond to time threshold, if erasing control mobile terminal speed is slower, correspond to time threshold compared with
It is long.
It obtains in the preceding paragraph erasing person's handwriting, the speed of service of the erasing control specifically includes:
Step S50331 wipes the corresponding time threshold of person's handwriting and the erasing control described according to described the preceding paragraph
The quantity at the control point generated in the preceding paragraph erasing person's handwriting determines the speed of service of the erasing control.
Specifically, the quantity at control point is more, illustrates to wipe control in the corresponding time threshold of the preceding paragraph erasing person's handwriting
The speed of operation is faster.
In an alternative embodiment, the corresponding time threshold of person's handwriting and control point can be wiped according to the preceding paragraph
Quantity determines the quantity at the control point that erasing person's handwriting generates in the unit time, so that it is determined that the speed of service of erasing control.Such as:
It is 100ms that the preceding paragraph, which wipes the corresponding time threshold of person's handwriting, and the preceding paragraph wipes person's handwriting and generates 1000 control points, and the unit time is
10ms can then obtain a little wiping the speed of service for wiping control in person's handwriting being 100/10ms.
Step S505, detects whether the current record time reaches corresponding time threshold.
Specifically, current record time corresponding time threshold is to work as the corresponding time threshold of leading portion erasing pen mark.
Person's handwriting is wiped for first section, the starting point for carrying out time record is to wipe the down point of control；Non- first section is wiped
Person's handwriting, the starting point of current record time are the time point that the preceding paragraph wipes that person's handwriting terminates.
In an alternative embodiment, by taking first section wipes person's handwriting as an example, when erasing control contact touch screen generates down
Start timing when point, during timing, judges whether timing reaches initial time threshold value.
Step S507, if record arrival time time threshold value, it is determined that when the erasing track record completion of leading portion, enter
According to the quantity of the pixel of each color value of erasing track covering, the step of determining pixel most target color values,
Otherwise continue record erasing track.
In an alternative embodiment, still by taking first section wipes person's handwriting as an example, when erasing control contact touch screen generates
Start timing when down point, during timing, judges whether timing reaches initial time threshold value.When timing time reaches just
When beginning time threshold, determines and first section erasing handwriting record is completed, then first section erasing track, which is handled, (enters step
S506 it), and to next section of erasing track records.
Step S509 determines the pixel according to the quantity of the pixel of each color value of erasing track covering
The most target color values of point.
Step S5011 executes erasing operation according to the target color values.
Embodiment 3
Fig. 6 is a kind of flow chart for handwriting erasing method that the embodiment of the present invention 3 provides.The present embodiment is in embodiment 2
On the basis of a kind of optional embodiment.As shown in connection with fig. 6, which includes:
Step S61, user are write using color A, and are annotated by color B.
Specific user is write and is annotated using two different colors on whiteboard applications software.
Step S62 into erasing mode, and starts to move erasing rubber since a desired color position.
Specifically, when user selects erasing rubber in whiteboard applications software, into erasing mode.If the user desired that wiping
Except written handwriting, then erasing rubber is moved since A color, if the user desired that erasing annotation person's handwriting, then move since B color
Erasing rubber.
Step S63, record move the track of erasing rubber each time.
Specifically, the mobile track of erasing rubber can be recorded by the mobile control point of record erasing rubber.
Step S64 analyzes the person's handwriting of erasing after reaching specified time threshold value, and most person's handwritings is wiped in confirmation
Color is the color X of this secondary erasing.
In above-mentioned steps S64, when the time of record reaching specified time threshold value, start to wipe track to this section
Erasing operation is handled.
According to specified time threshold, each section in erasing track is handled respectively, i.e.,
Specifically, above-mentioned color X is one in color A and color B, the color of object as this time wiped.Erasing is most
More person's handwriting colors refers to the most color of the pixel of erasing track covering, it is believed that the color is the practical expectation erasing of user
Color.
Person's handwriting other than step S65, rollback not color X.
Above-mentioned steps are to carry out rollback for other colors to the non-targeted color wiped, to obtain only wiping
The effect of the person's handwriting of color X.
Step S66 repeats step S64-S65, to wipe predetermined person's handwriting.
The erasing track that step S65 is recorded in step S64 has carried out corresponding erasing processing, then return step S64,
Continue to handle the erasing person's handwriting recorded in next time threshold.
Step S67 terminates.
Embodiment 4
A kind of embodiment of handwriting erasing method is present embodiments provided, Fig. 7 is a kind of pen that the embodiment of the present invention 4 provides
The schematic diagram of mark method for deleting.As shown in connection with fig. 7, this method comprises:
Step S71, record erasing track, wherein the erasing track covers the different pixel of multiple color values.
Specifically, above-mentioned color value can be rgb value, the pixel with different colours value shows different colors.Picture
Vegetarian refreshments is the basic unit that image is shown in display screen, and display screen is believed by position, color value, the brightness etc. for indicating pixel
Breath, to show complete image.
Above-mentioned erasing track is generated according to the motion track of erasing rubber.In an alternative embodiment, user's selection is white
Erasing rubber control in plate application software, then mobile in display interface using erasing rubber, intelligent interaction plate passes through detection rubber
The position that skin is wiped determines the motion track of erasing rubber, and the motion track of the erasing rubber detected is above-mentioned erasing track.More
Specifically, intelligent interaction plate detects multiple control points in moving process, thus according to control during erasing rubber is mobile
System point, which generates, wipes number track.
In above-mentioned steps, erasing track is covered on the pixel of multiple and different color values.As shown in connection with fig. 2, it " opens
Begin " it is black writing person's handwriting, it include red annotation line below black font (with thicker black lines example in figure).
The pixel of " beginning " and the pixel of the annotation line of lower section are the different pixel of color value.
As shown in connection with fig. 3, the rectangle frame in figure is for indicating that (the erasing track is given for example only, actual for erasing track
Wipe that track is simultaneously opaque, be also not necessarily the shape of rule), the erasing track of erasing rubber, which was both covered with, in the example " opens
The black pixel point of beginning " also covers the red pixel of annotation line, it is determined that the erasing track covers two kinds of color values not
Same pixel.
Step S73 wipes the content of all pixels point of erasing track covering.
Specifically, the content of the pixel of erasing erasing track covering can be, the pixel of track covering will be wiped
Color value is set as 0, or sets the color value for wiping the pixel of track covering to the background colour of current painting canvas.
Step S75 determines that pixel is most according to the quantity of the pixel of each color value of erasing track covering
Target color values.
There are multiple pixels on painting canvas, pixel rendering is really become corresponding color value by the display of person's handwriting, from
And make the position of pixel that color corresponding with color value be presented.If the pixel for wiping track covering is all same face
Color is then identified the handwriting according to erasing track and is wiped, but in step S71, erasing track covers a variety of different colours
The pixel of value, therefore in the case where the pixel with different colours value is closer or is overlapped, it is difficult to it only wipes wherein
One kind, therefore when user only needs to wipe the pixel of one of color value, it is thus necessary to determine that target color values.In above-mentioned steps
In, using the color value of the most pixel of quantity as target color values.
Step S77 redraws the pixel of all colours value in addition to the target color values.
Refer to not being that the pixels of target color values restores the state to erasing by color value specifically, redrawing.
After step S75, the pixel of all colours value other than target color values is wiped free of, and by walking
After rapid S77, the pixel of all colours value other than target color values is redrawn, to restore the color to before being wiped free of
Value.Therefore that painting canvas is finally shown as a result, the pixel with target color values is wiped after entirely erasing process
It removes, the pixel of all colours value other than target color values is retained.
As shown in connection with fig. 4, target color values are red corresponding color value, in all pixels of erasing erasing track covering
After point, the red and black pixel point of erasing track covering are all wiped free of, the black after redrawing processing, except target color values
Pixel is redrawn, and effect as shown in Figure 4 is obtained.
In conjunction with Fig. 3 and 4 it is found that but passing through above-mentioned implementation even if overlapping occur in red person's handwriting and black handwriting in figure
The method that example provides realizes the effect for only wiping one of color.
From the foregoing, it will be observed that the above embodiments of the present application record erasing track, wherein the erasing track covers multiple color values
Different pixels wipes the content of all pixels point of erasing track covering, according to the every of erasing track covering
The quantity of the pixel of a color value determines the most target color values of pixel, redraws in addition to the target color values
The pixel of all colours value.The all pixels point that above scheme is covered by erasing erasing track, then redraw place's color of object
The mode of the pixel of value has achieved the effect that only to wipe one of multiple color value color value, namely has realized fine wiping
The purpose removed, solving can not select one such color to execute erasing operation when person's handwriting is overlapped in the prior art
Technical problem.
Embodiment 5
It present embodiments provides a kind of for implementing the handwriting erasing of the handwriting erasing method in embodiment 1 and embodiment 2
Device, Fig. 8 are a kind of schematic diagram for handwriting erasing device that the embodiment of the present invention 5 provides.As shown in connection with fig. 8, which includes:
Logging modle 80, for recording erasing track, wherein erasing track covers the different pixel of multiple color values；
Determining module 82, the quantity of the pixel of each color value for being covered according to erasing track, determines pixel
Most target color values；
Module 84 is wiped, for executing erasing operation according to target color values.
Optionally, according to the above embodiments of the present application, determining module includes: lookup submodule, for being wiped free of track
The most color value of pixel is searched in the color value of covering.Submodule is determined, for determining that most color values is target face
Color value.
Optionally, according to the above embodiments of the present application, wiping module includes: erasing submodule, for wiping erasing track
The pixel of covering.Rollback submodule, for in the pixel being wiped free of, color value not to be that the pixel of target color values clicks through
Row rollback processing.
Optionally, according to the above embodiments of the present application, segment processing is carried out to the erasing track, according to the erasing
The quantity of the pixel of each color value of track covering, above-mentioned apparatus further include: detection module, for determining the pixel
Before most target color values, detect whether the current record time reaches corresponding time threshold；Determining module, for such as
The record time described in fruit reaches the time threshold, it is determined that when the erasing track record of leading portion is completed, into according to the wiping
It is the step of determining the pixel most target color values, no except the quantity of the pixel of each color value of track covering
Then continue the erasing track that record works as leading portion.
Optionally, according to the above embodiments of the present application, whether reach corresponding preset in the record time for detecting current
Before recording the time, above-mentioned apparatus further include: module is obtained, for obtaining the corresponding time threshold of erasing person's handwriting for working as leading portion,
It obtains module and comprises determining that submodule, it is described current if wiping person's handwriting for the section headed by the erasing person's handwriting of leading portion
The corresponding time threshold of erasing person's handwriting of section is preset initial time threshold value；Acquisition submodule, if working as leading portion for described
Erasing person's handwriting be not first section erasing person's handwriting, then obtain in the preceding paragraph erasing person's handwriting, the speed of service of the erasing control,
And according to the speed of service, the corresponding time threshold of erasing person's handwriting for working as leading portion is determined, wherein the wiping when leading portion
Except the corresponding time threshold of person's handwriting and the speed of service are in inversely prroportional relationship.
Optionally, according to the above embodiments of the present application, acquisition submodule comprises determining that unit, for according to described upper one
The number at the control point that the corresponding time threshold of section erasing person's handwriting and the erasing control generate in described the preceding paragraph erasing person's handwriting
Amount determines the speed of service of the erasing control.
Embodiment 6
Present embodiments provide a kind of for implementing the handwriting erasing device of the handwriting erasing method in embodiment 4, Fig. 9 is
A kind of schematic diagram for handwriting erasing device that the embodiment of the present invention 6 provides.As shown in connection with fig. 9, which includes:
Logging modle 90, for recording erasing track, wherein erasing track covers the different pixel of multiple color values.
Module 92 is wiped, the content of all pixels point for wiping the covering of erasing track.
Determining module 94, the quantity of the pixel of each color value for being covered according to erasing track, determines pixel
The most target color values of most pixels.
Module 96 is redrawn, for redrawing the pixel of all colours value in addition to target color values.
Embodiment 7
A kind of storage medium is present embodiments provided, storage medium includes the program of storage, wherein is run in described program
When control the storage medium where equipment execute following steps: record erasing track, wherein the erasing track covers multiple
The different pixel of color value；According to the quantity of the pixel of each color value of erasing track covering, the picture is determined
The most target color values of vegetarian refreshments；Erasing operation is executed according to the target color values.
Embodiment 8
A kind of processor is present embodiments provided, processor is for running program, wherein execute such as when described program is run
Lower step: record erasing track, wherein the erasing track covers the different pixel of multiple color values；According to the erasing
The quantity of the pixel of each color value of track covering, determines the most target color values of the pixel；According to the mesh
It marks color value and executes erasing operation.
The serial number of the above embodiments of the invention is only for description, does not represent the advantages or disadvantages of the embodiments.
In the above embodiment of the invention, it all emphasizes particularly on different fields to the description of each embodiment, does not have in some embodiment
The part of detailed description, reference can be made to the related descriptions of other embodiments.
In several embodiments provided herein, it should be understood that disclosed technology contents can pass through others
Mode is realized.Wherein, the apparatus embodiments described above are merely exemplary, such as the division of the unit, Ke Yiwei
A kind of logical function partition, there may be another division manner in actual implementation, for example, multiple units or components can combine or
Person is desirably integrated into another system, or some features can be ignored or not executed.Another point, shown or discussed is mutual
Between coupling, direct-coupling or communication connection can be through some interfaces, the INDIRECT COUPLING or communication link of unit or module
It connects, can be electrical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
On unit.It can some or all of the units may be selected to achieve the purpose of the solution of this embodiment according to the actual needs.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.Above-mentioned integrated list
Member both can take the form of hardware realization, can also realize in the form of software functional units.
If the integrated unit is realized in the form of SFU software functional unit and sells or use as independent product
When, it can store in a computer readable storage medium.Based on this understanding, technical solution of the present invention is substantially
The all or part of the part that contributes to existing technology or the technical solution can be in the form of software products in other words
It embodies, which is stored in a storage medium, including some instructions are used so that a computer
Equipment (can for personal computer, server or network equipment etc.) execute each embodiment the method for the present invention whole or
Part steps.And storage medium above-mentioned includes: that USB flash disk, read-only memory (ROM, Read-Only Memory), arbitrary access are deposited
Reservoir (RAM, Random Access Memory), mobile hard disk, magnetic or disk etc. be various to can store program code
Medium.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (12)
1. a kind of handwriting erasing method characterized by comprising
Record erasing track, wherein the erasing track covers the different pixel of multiple color values；
According to the quantity of the pixel of each color value of erasing track covering, the most color of object of pixel is determined
Value；
Erasing operation is executed according to the target color values.
2. the method according to claim 1, wherein executing erasing operation according to the target color values, comprising:
Wipe the pixel of erasing track covering；
To in the pixel being wiped free of, color value is not that the pixel of the target color values carries out rollback processing.
3. method according to claim 1 or 2, which is characterized in that segment processing is carried out to the erasing track, in basis
It is described erasing track covering each color value pixel quantity, determine the most target color values of the pixel it
Before, the method also includes:
Detect whether the current record time reaches corresponding time threshold；
If the record time reaches the time threshold, it is determined that when the erasing track record of leading portion is completed, into basis
The quantity of the pixel of each color value of erasing track covering, the step of determining pixel most target color values,
Otherwise continue the erasing track that record works as leading portion.
4. according to the method described in claim 3, it is characterized in that, detecting whether the current record time reaches corresponding pre-
If the record time before, the method also includes: obtain work as leading portion the corresponding time threshold of erasing person's handwriting, comprising:
If the section headed by the erasing person's handwriting of leading portion wipes person's handwriting, the corresponding time threshold of erasing person's handwriting for working as leading portion
Value is preset initial time threshold value；
If described when the erasing person's handwriting of leading portion is not first section erasing person's handwriting, obtain in the preceding paragraph erasing person's handwriting, erasing
The speed of service of control, and according to the speed of service, determine the corresponding time threshold of erasing person's handwriting for working as leading portion,
In, it is described when the corresponding time threshold of erasing person's handwriting of leading portion and the speed of service are in inversely prroportional relationship.
5. according to the method described in claim 4, it is characterized in that, obtaining in the preceding paragraph erasing person's handwriting, the erasing control
The speed of service, comprising:
The corresponding time threshold of person's handwriting and the erasing control are wiped in described the preceding paragraph erasing person's handwriting according to described the preceding paragraph
The quantity at the control point of generation determines the speed of service of the erasing control.
6. a kind of handwriting erasing method characterized by comprising
Record erasing track, wherein the erasing track covers the different pixel of multiple color values；
Wipe the content of all pixels point of erasing track covering；
According to the quantity of the pixel of each color value of erasing track covering, the most color of object of pixel is determined
Value；
Redraw the pixel of all colours value in addition to the target color values.
7. a kind of handwriting erasing device characterized by comprising
Logging modle, for recording erasing track, wherein the erasing track covers the different pixel of multiple color values；
Determining module, the quantity of the pixel of each color value for being covered according to the erasing track, determines pixel most
More target color values；
Module is wiped, for executing erasing operation according to the target color values.
8. device according to claim 7, which is characterized in that the determining module includes:
Submodule is searched, for searching the most color value of pixel in the color value covered by the erasing track；
Submodule is determined, for determining that most color value is the target color values.
9. device according to claim 7, which is characterized in that the erasing module includes:
Submodule is wiped, for wiping the pixel of erasing track covering；
Rollback submodule, for in the pixel being wiped free of, color value not to be that the pixel of the target color values is returned
Rolling processing.
10. a kind of handwriting erasing device characterized by comprising
Logging modle, for recording erasing track, wherein the erasing track covers the different pixel of multiple color values；
Module is wiped, the content of all pixels point for wiping erasing track covering；
Determining module, the quantity of the pixel of each color value for being covered according to the erasing track, determines pixel most
More target color values；
Module is redrawn, for redrawing the pixel of all colours value in addition to the target color values.
11. a kind of storage medium, which is characterized in that the storage medium includes the program of storage, wherein run in described program
When control the storage medium where equipment execute following steps: record erasing track, wherein the erasing track covers multiple
The different pixel of color value；According to the quantity of the pixel of each color value of erasing track covering, pixel is determined
Most target color values；Erasing operation is executed according to the target color values.
12. a kind of processor, which is characterized in that the processor is for running program, wherein executed such as when described program is run
Lower step: record erasing track, wherein the erasing track covers the different pixel of multiple color values；According to the erasing
The quantity of the pixel of each color value of track covering, determines the most target color values of pixel；According to the target face
Color value executes erasing operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810948890.7A CN109215098B (en) | 2018-08-20 | 2018-08-20 | Handwriting erasing method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810948890.7A CN109215098B (en) | 2018-08-20 | 2018-08-20 | Handwriting erasing method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109215098A true CN109215098A (en) | 2019-01-15 |
| CN109215098B CN109215098B (en) | 2023-04-11 |
Family
ID=64989401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810948890.7A Active CN109215098B (en) | 2018-08-20 | 2018-08-20 | Handwriting erasing method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109215098B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112035035A (en) * | 2020-08-27 | 2020-12-04 | 哈尔滨工业大学（深圳） | Eraser realizing method and system capable of erasing strokes of top layer local area |
| CN112182415A (en) * | 2020-09-04 | 2021-01-05 | 上海松鼠课堂人工智能科技有限公司 | Intelligent learning guiding method and system |
| CN114296564A (en) * | 2021-12-13 | 2022-04-08 | 广州朗国电子科技股份有限公司 | Writing deleting method and system for electronic whiteboard, electronic whiteboard and storage medium |
| CN114546174A (en) * | 2022-02-28 | 2022-05-27 | 京东方科技集团股份有限公司 | Handwriting processing method, display device and readable storage medium |
| WO2022253016A1 (en) * | 2021-05-29 | 2022-12-08 | 华为技术有限公司 | Line rollback method for input panel and related apparatus |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6280774A (en) * | 1985-10-04 | 1987-04-14 | Casio Comput Co Ltd | Drawn data forming device |
| CN105741272A (en) * | 2016-01-25 | 2016-07-06 | 上海中信信息发展股份有限公司 | Method for removing osmotic writing on back surface of document image |
| CN106599818A (en) * | 2016-12-07 | 2017-04-26 | 广州视源电子科技股份有限公司 | Method and apparatus for generating handwriting-format document based on picture |
| CN106610783A (en) * | 2016-10-10 | 2017-05-03 | 广州视源电子科技股份有限公司 | Handwriting erasure method and system of infrared touch equipment |
| CN106991711A (en) * | 2017-03-15 | 2017-07-28 | 广州视源电子科技股份有限公司 | Person's handwriting edit methods and system |
-
2018
- 2018-08-20 CN CN201810948890.7A patent/CN109215098B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6280774A (en) * | 1985-10-04 | 1987-04-14 | Casio Comput Co Ltd | Drawn data forming device |
| CN105741272A (en) * | 2016-01-25 | 2016-07-06 | 上海中信信息发展股份有限公司 | Method for removing osmotic writing on back surface of document image |
| CN106610783A (en) * | 2016-10-10 | 2017-05-03 | 广州视源电子科技股份有限公司 | Handwriting erasure method and system of infrared touch equipment |
| CN106599818A (en) * | 2016-12-07 | 2017-04-26 | 广州视源电子科技股份有限公司 | Method and apparatus for generating handwriting-format document based on picture |
| CN106991711A (en) * | 2017-03-15 | 2017-07-28 | 广州视源电子科技股份有限公司 | Person's handwriting edit methods and system |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112035035A (en) * | 2020-08-27 | 2020-12-04 | 哈尔滨工业大学（深圳） | Eraser realizing method and system capable of erasing strokes of top layer local area |
| CN112182415A (en) * | 2020-09-04 | 2021-01-05 | 上海松鼠课堂人工智能科技有限公司 | Intelligent learning guiding method and system |
| CN112182415B (en) * | 2020-09-04 | 2021-08-17 | 上海松鼠课堂人工智能科技有限公司 | Intelligent learning guiding method and system |
| WO2022253016A1 (en) * | 2021-05-29 | 2022-12-08 | 华为技术有限公司 | Line rollback method for input panel and related apparatus |
| CN114296564A (en) * | 2021-12-13 | 2022-04-08 | 广州朗国电子科技股份有限公司 | Writing deleting method and system for electronic whiteboard, electronic whiteboard and storage medium |
| CN114546174A (en) * | 2022-02-28 | 2022-05-27 | 京东方科技集团股份有限公司 | Handwriting processing method, display device and readable storage medium |
| CN114546174B (en) * | 2022-02-28 | 2024-03-08 | 京东方科技集团股份有限公司 | Handwriting processing method, display device and readable storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109215098B (en) | 2023-04-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109215098A (en) | Handwriting erasing method and apparatus | |
| CN104636049B (en) | Display device, its operating method and control device | |
| CN110716680B (en) | Control method and device of intelligent interactive panel | |
| US9354707B2 (en) | Combination color and pen palette for electronic drawings | |
| CN107678664A (en) | A kind of terminal interface switching, the method, apparatus and terminal of gesture processing | |
| US20100031202A1 (en) | User-defined gesture set for surface computing | |
| US8542199B2 (en) | Image processing apparatus, image processing method, and program | |
| CN106575291A (en) | Detecting selection of digital ink | |
| CN108829327A (en) | The Writing method and device of interactive intelligence equipment | |
| CN108874275B (en) | Handwriting erasing method, handwriting erasing device, terminal and computer-readable storage medium | |
| EP2752740A1 (en) | Drawing control method, apparatus and mobile terminal | |
| CN108932053A (en) | Drawing practice, device, storage medium and computer equipment based on gesture | |
| CN108958608A (en) | Interface element operating method, device and the interactive intelligence equipment of electronic whiteboard | |
| WO2021068366A1 (en) | Writing operation method and device for intelligent interactive whiteboard, apparatus, and storage medium | |
| CN106951152A (en) | The control method and device of tab bar | |
| CN108733296A (en) | Method for deleting, device and the equipment of written handwriting | |
| CN110058755A (en) | A kind of method, apparatus, terminal device and the storage medium of PowerPoint interaction | |
| CN110928475B (en) | Page interaction method, device, equipment and storage medium of intelligent interaction panel | |
| CN105302419B (en) | A kind of touch screen for realizing various gestures operation | |
| CN107798717A (en) | Electronic brush writing method, device, computer equipment and storage medium | |
| CN109062491A (en) | The handwriting processing method and device of interactive intelligence equipment | |
| CN108304129A (en) | Teaching electronics exhibition booth annotation method, equipment, storage medium and system | |
| CN107977155A (en) | A kind of hand-written recognition method, device, equipment and storage medium | |
| CN110941382A (en) | Display operation method, device, equipment and storage medium of intelligent interactive panel | |
| CN108492349A (en) | Processing method, device, equipment and the storage medium of stroke writing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |