CN108805120A - The treating method and apparatus of person's handwriting - Google Patents
The treating method and apparatus of person's handwriting Download PDFInfo
- Publication number
- CN108805120A CN108805120A CN201810608162.1A CN201810608162A CN108805120A CN 108805120 A CN108805120 A CN 108805120A CN 201810608162 A CN201810608162 A CN 201810608162A CN 108805120 A CN108805120 A CN 108805120A
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- China
- Prior art keywords
- control point
- handwriting
- person
- parameter
- endpoint
- 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.)
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
- G06V30/10—Character recognition
- G06V30/14—Image acquisition
- G06V30/142—Image acquisition using hand-held instruments; Constructional details of the instruments
- G06V30/1423—Image acquisition using hand-held instruments; Constructional details of the instruments the instrument generating sequences of position coordinates corresponding to handwriting
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0484—Interaction techniques based on graphical user interfaces [GUI] for the control of specific functions or operations, e.g. selecting or manipulating an object, an image or a displayed text element, setting a parameter value or selecting a range
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0487—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
- G06F3/0488—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures
Abstract
The invention discloses a kind for the treatment of method and apparatus of person's handwriting.Wherein, this method includes：Obtain the dominating pair of vertices of pending person's handwriting in painting canvas, pending person's handwriting is the person's handwriting that arbitrary portion is wiped free of, dominating pair of vertices includes adjacent the first control point and the second control point, wherein, first control point is the control point that part is wiped free of in pending person's handwriting, and the second control point is the control point for not being wiped free of part in pending person's handwriting；The endpoint location where the erasing endpoint of pending person's handwriting is determined according to the first control point and the second control point；The endpoint of pending person's handwriting is redrawn according to endpoint location.The present invention solves the technical issues of endpoint that person's handwriting in the prior art is wiped free of deforms upon.
Description
Technical field
The present invention relates to data processing fields, in particular to a kind for the treatment of method and apparatus of person's handwriting.
Background technology
In the whiteboard applications of intelligent interaction device, usually erasing rubber is recorded by recording the rectangle frame of erasing rubber movement
Erasing path, if the erasing path of erasing rubber is very long, record rectangle frame list will be very long, consume memory mistake
Greatly；And in the prior art, by judging control point whether in rectangle, to judge whether control point is wiped free of, then by square
The line at the control point of shape frame both sides of edges and the intersection point on the side of rectangle frame are identified the handwriting and are cut as endpoint, this calculating
Rectangle frame list is needed to be traversed for, is taken very much, and after person's handwriting is wiped free of, endpoint part generates deformation.
Fig. 1 is the schematic diagram that a kind of erasing rubber wipes person's handwriting according to prior art, in conjunction with shown in Fig. 1, among person's handwriting
Rectangle is the corresponding rectangle of erasing rubber, and the person's handwriting on the boundary of this rectangle all produces deformation.
The problem of being deformed upon for the endpoint that person's handwriting in the prior art is wiped free of not yet proposes effective solution side at present
Case.
Invention content
An embodiment of the present invention provides a kind for the treatment of method and apparatus of person's handwriting, at least to solve person's handwriting quilt in the prior art
The technical issues of endpoint of erasing deforms upon.
One side according to the ... of the embodiment of the present invention provides a kind of processing method of person's handwriting, including：It obtains and is waited in painting canvas
Handle the dominating pair of vertices of person's handwriting, pending person's handwriting is the person's handwriting that is wiped free of of arbitrary portion, and dominating pair of vertices includes adjacent the first control
System point and the second control point, wherein the first control point is the control point that part is wiped free of in pending person's handwriting, and the second control point is
The control point of part is not wiped free of in pending person's handwriting；The wiping of pending person's handwriting is determined according to the first control point and the second control point
Except the endpoint location where endpoint；The endpoint of pending person's handwriting is redrawn according to endpoint location.
Further, the control point that pixel value is zero in painting canvas is obtained；Determine that the control point that pixel is zero is the first control
Point processed；Search second control point adjacent with the first control point；Determine that the first control point and the second control point constitute dominating pair of vertices.
Further, first time interative computation is carried out, wherein first time interative computation includes：By the position at the first control point
Parameter assignment is set to the first parameter, the location parameter at the second control point is assigned to the second parameter, obtains the first parameter and second
The mean value of parameter；Whether detection iterations reach preset value；If iterations reach preset value, it is determined that mean value is endpoint
Position；If iterations are not up to preset value, next iteration is carried out according to the pixel value of the corresponding point of mean value.
Further, if the pixel value of the corresponding point of mean value is zero, mean value is assigned to the first parameter, and enter and obtain
The step of taking the mean value of the first parameter and the second parameter, until iterations reach preset value；If the picture of the corresponding point of mean value
Plain value is not zero, then mean value is assigned to the second parameter, and the step of entering the mean value for obtaining the first parameter and the second parameter, directly
Reach preset value to iterations.
One side according to the ... of the embodiment of the present invention provides a kind of processing unit of person's handwriting, including：Acquisition module is used
In the dominating pair of vertices for obtaining pending person's handwriting in painting canvas, pending person's handwriting is the person's handwriting that arbitrary portion is wiped free of, dominating pair of vertices packet
Include adjacent the first control point and the second control point, wherein the first control point is the control that part is wiped free of in pending person's handwriting
Point, the second control point are the control point for not being wiped free of part in pending person's handwriting；Determining module, for according to the first control point and
Second control point determines the endpoint location where the erasing endpoint of pending person's handwriting；Module is redrawn, for according to endpoint location weight
Paint the endpoint of pending person's handwriting.
Further, acquisition module includes：First acquisition submodule, the control for being zero for obtaining pixel value in painting canvas
Point；First determination sub-module, for determining that the control point that pixel is zero is the first control point；Submodule is searched, for searching
Second control point adjacent with the first control point；Second determination sub-module, for determining the first control point and the second control point structure
At dominating pair of vertices.
Further, it is determined that module includes：First iteration submodule, for carrying out first time interative computation, wherein first
Secondary interative computation includes：The location parameter at the first control point is assigned to the first parameter, the location parameter at the second control point is assigned
It is worth to the second parameter, obtains the mean value of the first parameter and the second parameter；Detection sub-module, for detecting whether iterations reach
Preset value；Third determination sub-module, if reaching preset value for iterations, it is determined that mean value is endpoint location；Second changes
For submodule, if being not up to preset value for iterations, changed next time according to the pixel value of the corresponding point of mean value
Generation.
Further, secondary iteration submodule includes：First assignment unit, if the pixel value for the corresponding point of mean value
It is zero, then mean value is assigned to the first parameter, and the step of entering the mean value for obtaining the first parameter and the second parameter, until iteration
Number reaches preset value；Mean value is assigned to by the second assignment unit if the pixel value for the corresponding point of mean value is not zero
Second parameter, and the step of entering the mean value for obtaining the first parameter and the second parameter, until iterations reach preset value.
One side according to the ... of the embodiment of the present invention provides a kind of storage medium, and storage medium includes the program of storage,
Wherein, equipment executes following steps where controlling storage medium when program is run：Obtain the control of pending person's handwriting in painting canvas
Point pair, pending person's handwriting are the person's handwriting that arbitrary portion is wiped free of, and dominating pair of vertices includes that adjacent the first control point and second controls
Point, wherein the first control point is that the control point of part is wiped free of in pending person's handwriting, the second control point be in pending person's handwriting not
It is wiped free of the control point of part；The end where the erasing endpoint of pending person's handwriting is determined according to the first control point and the second control point
Point position；The endpoint of pending person's handwriting is redrawn according to endpoint location.
One side according to the ... of the embodiment of the present invention provides a kind of processor, and processor is for running program, wherein
Program executes following steps when running：The dominating pair of vertices of pending person's handwriting in painting canvas is obtained, pending person's handwriting is arbitrary portion quilt
The person's handwriting of erasing, dominating pair of vertices include adjacent the first control point and the second control point, wherein the first control point is pending pen
The control point of part is wiped free of in mark, the second control point is the control point for not being wiped free of part in pending person's handwriting；According to first
Control point and the second control point determine the endpoint location where the erasing endpoint of pending person's handwriting；It is redrawn according to endpoint location and waits locating
Manage the endpoint of person's handwriting.
In embodiments of the present invention, the dominating pair of vertices of pending person's handwriting in painting canvas is obtained, pending person's handwriting is arbitrary portion
The person's handwriting being wiped free of, dominating pair of vertices include adjacent the first control point and the second control point, wherein the first control point is pending
It is wiped free of the control point of part in person's handwriting, the second control point is the control point for not being wiped free of part in pending person's handwriting, according to the
One control point and the second control point determine the endpoint location where the erasing endpoint of pending person's handwriting, are redrawn and are waited for according to endpoint location
Handle the endpoint of person's handwriting.Said program is by two adjacent control points, to determine the endpoint location of erasing endpoint, so as to
Erasing endpoint is redrawn, so that erasing endpoint avoids the deformation caused by erasing so that erasing endpoint is more
It is round and smooth, solve the technical issues of endpoint that person's handwriting in the prior art is wiped free of deforms upon.
Description of the drawings
Attached drawing described herein is used to provide further understanding of the present invention, and is constituted part of this application, this hair
Bright illustrative embodiments and their description are not constituted improper limitations of the present invention for explaining the present invention.In the accompanying drawings：
Fig. 1 is the schematic diagram that a kind of erasing rubber wipes person's handwriting according to prior art；
Fig. 2 is a kind of flow chart of the processing method of person's handwriting according to the ... of the embodiment of the present invention；
Fig. 3 is a kind of schematic diagram of erasing person's handwriting according to the ... of the embodiment of the present invention；
Fig. 4 is a kind of schematic diagram of person's handwriting according to the ... of the embodiment of the present invention；
Fig. 5 is the schematic diagram according to embodiments of the present invention for carrying out first time iterative calculation；And
Fig. 6 is the schematic diagram of the processing unit of person's handwriting according to the ... of the embodiment of the present invention.
Specific implementation mode
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 every other embodiment that member is obtained without making creative work should all belong to the model that the present invention protects
It encloses.
It should be noted that term " first " in description and claims of this specification and above-mentioned attached drawing, "
Two " etc. be for distinguishing similar object, without being used to describe specific sequence or precedence.It should be appreciated that using in this way
Data can be interchanged in the appropriate case, 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 " comprising " and " having " and their any deformation, it is intended that cover
It includes to be not necessarily limited to for example, containing the process of series of steps or unit, method, system, product or equipment to cover non-exclusive
Those of clearly list step or unit, but may include not listing clearly or for these processes, method, product
Or the other steps or unit that equipment is intrinsic.
Embodiment 1
According to embodiments of the present invention, a kind of embodiment of the processing method of person's handwriting is provided, it should be noted that in attached drawing
Flow the step of illustrating can be executed in the computer system of such as a group of computer-executable instructions, although also,
Logical order is shown in flow charts, but in some cases, can with different from sequence herein execute it is shown or
The step of description.
Fig. 2 is a kind of flow chart of the processing method of person's handwriting according to the ... of the embodiment of the present invention, as shown in Fig. 2, this method packet
Include following steps：
Step S202, obtains the dominating pair of vertices of pending person's handwriting in painting canvas, and pending person's handwriting is what arbitrary portion was wiped free of
Person's handwriting, dominating pair of vertices include adjacent the first control point and the second control point, wherein the first control point is quilt in pending person's handwriting
The control point of part is wiped, the second control point is the control point for not being wiped free of part in pending person's handwriting.
Specifically, one layer of writing interface that above-mentioned painting canvas, which is the writings applications such as blank, to be provided to the user, pending person's handwriting are
The person's handwriting being wiped free of for a portion.Fig. 3 is a kind of schematic diagram of erasing person's handwriting according to the ... of the embodiment of the present invention, in conjunction with Fig. 3
Shown, a person's handwriting part therein is wiped free of, which is pending person's handwriting.
Person's handwriting in painting canvas is mobile on touch apparatus surface using time writer or finger by user and generates, and user is writing
When, time writer or finger move on touch apparatus, generate touch data point, these touch data points are that equipment draws person's handwriting
Control point.Fig. 4 is a kind of schematic diagram of person's handwriting according to the ... of the embodiment of the present invention, and in conjunction with shown in Fig. 4, the point above person's handwriting is
Control point.Control point in the figure is only used for illustrating, usual not display control point during actual displayed.
In above-mentioned steps S202, pending person's handwriting is the person's handwriting that arbitrary portion is wiped free of, and refers to that user selectes rubber
After wiping, generated person's handwriting in painting canvas is wiped using erasing rubber.
In conjunction with shown in Fig. 4, the first control point and the second control point are illustrated, dashed rectangle is erasing rubber in Fig. 4
Shape, the part in rectangle is the part being wiped free of, in this example, P2And P3For the first control point being wiped free of, P1And P4
For the second control point not being wiped free of.
Step S204 determines the endpoint where the erasing endpoint of pending person's handwriting according to the first control point and the second control point
Position.
Specifically, the erasing endpoint of pending person's handwriting is person's handwriting newly-generated endpoint after an erase.Person's handwriting is being wiped free of
Later, part person's handwriting disappears, then will appear new endpoint, in conjunction with shown in Fig. 4, P1And P4Between, where the point intersected with erasing rubber
Position be wipe endpoint endpoint location.
Since the first control point and the second control point are adjacent, and it is respectively the control point being wiped free of and the control not being wiped free of
Point, therefore endpoint is wiped necessarily between the first control point and the second control point, in a kind of optional example, due to control point
It is more intensive, therefore the midpoint between the first control point and the second control point may be used as endpoint, and pass through the first control
The position of the position of point and the location determination endpoint at the second control point.
Step S206 redraws the endpoint of pending person's handwriting according to endpoint location.
In the case where determining endpoint location, the endpoint of person's handwriting is redrawn according to endpoint location.
Fig. 3 be identify the handwriting endpoint redrawn after schematic diagram, in conjunction with shown in Fig. 3, due to erasing endpoint weighed
The endpoint that the deformation painted, therefore wipe endpoint is redrawn covers, and since the endpoint redrawn is more round and smooth, has preferable
Visual effect.
From the foregoing, it will be observed that the above embodiments of the present application, obtain the dominating pair of vertices of pending person's handwriting in painting canvas, pending person's handwriting is
The person's handwriting that arbitrary portion is wiped free of, dominating pair of vertices include adjacent the first control point and the second control point, wherein the first control point
To be wiped free of the control point of part in pending person's handwriting, the second control point is the control for not being wiped free of part in pending person's handwriting
Point determines the endpoint location where the erasing endpoint of pending person's handwriting according to the first control point and the second control point, according to endpoint
Position redraws the endpoint of pending person's handwriting.Said program is by two adjacent control points, to determine the endpoint position of erasing endpoint
It sets, so as to be redrawn to erasing endpoint, so that erasing endpoint avoids the deformation caused by erasing so that wipe
Except endpoint is more round and smooth, solves the technical issues of endpoint that person's handwriting in the prior art is wiped free of deforms upon.
Optionally, according to the above embodiments of the present application, the dominating pair of vertices of pending person's handwriting in painting canvas is obtained, including：It obtains
The control point that pixel value is zero in painting canvas；Determine that the control point that pixel is zero is the first control point；It finds and the first control
The second adjacent control point of point；Determine that the first control point and the second control point constitute dominating pair of vertices.
Specifically, can be disappeared on painting canvas by the person's handwriting that erasing rubber is wiped, namely by the pixel of the person's handwriting of erasing rubber erasing
Value is 0, and in all control points, the control point that pixel is 0 is the first control point being wiped free of.But the control being wiped free of
Point has very much, and not all first control point all has the second adjacent control point, therefore searches adjacent with the first control point
Second control point, the first control point with the second adjacent control point are the control that person's handwriting has been wiped free of part most boundary
Point.
In a kind of optional embodiment, in conjunction with shown in Fig. 4, the point that pixel is 0 is found in the person's handwriting, that is, is found
P2、P3And P5, respectively search and P2、P3And P5The adjacent point not being wiped free of, finds and P2Adjacent P1, and and P3Phase
Adjacent P4, P5There is no the second adjacent control point, to obtain dominating pair of vertices P1And P2And P3And P4。
Using said program provided by the present application, directly by judge pixel value of the control point in painting canvas whether be 0 come
Judge whether control point is wiped free of, does not have to the rectangle frame list for retaining erasing rubber, reduce the consumption to memory.
Optionally, according to the above embodiments of the present application, the pen being wiped free of is determined according to the first control point and the second control point
Position where the endpoint of mark, including：Carry out first time interative computation, wherein first time interative computation includes：By the first control
The location parameter of point is assigned to the first parameter, and the location parameter at the second control point is assigned to the second parameter, obtains the first parameter
With the mean value of the second parameter；Whether detection iterations reach preset value；If iterations reach preset value, it is determined that mean value
For endpoint location；If iterations are not up to preset value, next iteration is carried out according to the pixel value of the corresponding point of mean value.
Specifically, the point corresponding to above-mentioned mean value is the midpoint at the first control point and the second control point line.First control
The location parameter of the location parameter and the second control point of making point can be described by coordinate, respectively by the position at the first control point
The location parameter for setting parameter and the second control point is assigned to the first parameter and the second parameter, for according to scheduled first parameter and
Computation rule between second parameter is iterated between the first control point and the second control point, to find with it is actual
The point that erasing endpoint is closer to.
Fig. 5 is the schematic diagram according to embodiments of the present invention for carrying out first time iterative calculation, in a kind of optional embodiment,
It is m (i) to enable the first parameter, and the second parameter is n (i), and i is preset iterations.In conjunction with shown in Fig. 5, ask first P1 and P2 it
Between erasing endpoint.Enable point P1Coordinate is P1, point P2Coordinate is P2, obtains n (0)=P1, m (0)=P2 after bringing parameter into, solves m
(0) and the midpoint C of n (0)0Coordinate c (0), the as corresponding point of mean value.
Above-mentioned steps complete first time iteration, the C obtained by an iteration0Error with erasing endpoint may be compared with
Greatly, it therefore also needs to carry out multiple iteration, when carrying out next iteration, the assignment to n (i) He m (i) is needed to sentence
Break, namely the c (0) obtained for the first time is assigned to n (1) or m (1), needs further to be judged.Work as C0Pixel value be 0
When, illustrate C0It has been be wiped free of that, erasing endpoint should be in P1With C0Between；And work as C0Pixel value be 0 when, illustrate C0It is not wiped also
It removes, then wiping endpoint should be in P2With C0Between, next iteration can be carried out according to such rule, it has been determined that erasing endpoint
Position.
Optionally, corresponding according to mean value if iterations are not up to preset value according to the above embodiments of the present application
The pixel value of point carries out next iteration, including：If the pixel value of the corresponding point of mean value is zero, mean value is assigned to first
Parameter, and the step of entering the mean value for obtaining the first parameter and the second parameter, until iterations reach preset value；If mean value
The pixel value of corresponding point is not zero, then mean value is assigned to the second parameter, and enters and obtain the first parameter and the second parameter
The step of mean value, until iterations reach preset value.
In a kind of optional embodiment, work as C0Pixel value be 0 when, illustrate C0It has been be wiped free of that, erasing endpoint should be in P1
With C0Between, C0Relative to P2It is more nearly actual erasing endpoint, therefore by C0Coordinate c (0) be assigned to m (1), n (1)
Still value P1 calculates m (1), the corresponding point C of mean value of n (1) again1Coordinate c (1), the point is relative to C0For with reality
Erasing endpoint more closely, subsequently into C is judged1The step of whether being wiped free of.It repeats the above steps, until completing preset
Iterations obtain c (i).
In an alternative embodiment, work as C0Pixel value be 0 when, illustrate C0It is not wiped free of, erasing endpoint should
In P2With C0Between, C0Relative to P1It is more nearly actual erasing endpoint, therefore by C0Coordinate c (0) be assigned to n (1), m
(1) still value P2 calculates m (1), the corresponding point C of mean value of n (1) again1Coordinate c (1), the point is relative to C0For with reality
The erasing endpoint on border is more closely, subsequently into C is judged1The step of whether being wiped free of.It repeats the above steps, until completing default
Iterations, obtain c (i).
Optionally, according to the above embodiments of the present application, preset value 5.
Specifically, when iteration 5 times, preferable effect can be reached, therefore it is 5 that preset value, which is arranged,.
The application said program approaches the endpoint for being wiped free of person's handwriting using the mode of iteration, than existing scheme speed more
Soon, and by redrawing endpoint the person's handwriting endpoint after cutting will not be deformed.
Embodiment 2
According to embodiments of the present invention, a kind of embodiment of the processing method of person's handwriting is provided, Fig. 6 is implemented according to the present invention
The schematic diagram of the processing unit of the person's handwriting of example, as shown in fig. 6, the device includes：
Acquisition module 60, the dominating pair of vertices for obtaining pending person's handwriting in painting canvas, pending person's handwriting are arbitrary portion quilt
The person's handwriting of erasing, dominating pair of vertices include adjacent the first control point and the second control point, wherein the first control point is pending pen
The control point of part is wiped free of in mark, the second control point is the control point for not being wiped free of part in pending person's handwriting.
Specifically, one layer of writing interface that above-mentioned painting canvas, which is the writings applications such as blank, to be provided to the user, pending person's handwriting are
The person's handwriting being wiped free of for a portion.Fig. 3 is a kind of schematic diagram of erasing person's handwriting according to the ... of the embodiment of the present invention, in conjunction with Fig. 3
Shown, a person's handwriting part therein is wiped free of, which is pending person's handwriting.
Person's handwriting in painting canvas is mobile on touch apparatus surface using time writer or finger by user and generates, and user is writing
When, time writer or finger move on touch apparatus, generate touch data point, these touch data points are that equipment draws person's handwriting
Control point.Fig. 4 is a kind of schematic diagram of person's handwriting according to the ... of the embodiment of the present invention, and in conjunction with shown in Fig. 4, the point above person's handwriting is
Control point.Control point in the figure is only used for illustrating, usual not display control point during actual displayed.
In the above scheme, pending person's handwriting is the person's handwriting that arbitrary portion is wiped free of, after referring to that user selectes erasing rubber,
Generated person's handwriting in painting canvas is wiped using erasing rubber.
In conjunction with shown in Fig. 4, the first control point and the second control point are illustrated, dashed rectangle is erasing rubber in Fig. 4
Shape, the part in rectangle is the part being wiped free of, in this example, P2And P3For the first control point being wiped free of, P1And P4
For the second control point not being wiped free of.
Determining module 62, the erasing endpoint place for determining pending person's handwriting according to the first control point and the second control point
Endpoint location.
Specifically, the erasing endpoint of pending person's handwriting is person's handwriting newly-generated endpoint after an erase.Person's handwriting is being wiped free of
Later, part person's handwriting disappears, then will appear new endpoint, in conjunction with shown in Fig. 4, P1And P4Between, where the point intersected with erasing rubber
Position be wipe endpoint endpoint location.
Since the first control point and the second control point are adjacent, and it is respectively the control point being wiped free of and the control not being wiped free of
Point, therefore endpoint is wiped necessarily between the first control point and the second control point, in a kind of optional example, due to control point
It is more intensive, therefore the midpoint between the first control point and the second control point may be used as endpoint, and pass through the first control
The position of the position of point and the location determination endpoint at the second control point.
Module 64 is redrawn, the endpoint for redrawing pending person's handwriting according to endpoint location.
In the case where determining endpoint location, the endpoint of person's handwriting is redrawn according to endpoint location.
Fig. 3 be identify the handwriting endpoint redrawn after schematic diagram, in conjunction with shown in Fig. 3, due to erasing endpoint weighed
The endpoint that the deformation painted, therefore wipe endpoint is redrawn covers, and since the endpoint redrawn is more round and smooth, has preferable
Visual effect.
Optionally, according to the above embodiments of the present application, acquisition module includes：First acquisition submodule, for obtaining painting canvas
The control point that middle pixel value is zero；First determination sub-module, for determining that the control point that pixel is zero is the first control point；It looks into
Submodule is looked for, for searching second control point adjacent with the first control point；Second determination sub-module, for determining the first control
Point and the second control point constitute dominating pair of vertices.
Specifically, can be disappeared on painting canvas by the person's handwriting that erasing rubber is wiped, namely by the pixel of the person's handwriting of erasing rubber erasing
Value is 0, and in all control points, the control point that pixel is 0 is the first control point being wiped free of.But the control being wiped free of
Point has very much, and not all first control point all has the second adjacent control point, therefore searches adjacent with the first control point
Second control point, the first control point with the second adjacent control point are the control that person's handwriting has been wiped free of part most boundary
Point.
In a kind of optional embodiment, in conjunction with shown in Fig. 4, the point that pixel is 0 is found in the person's handwriting, that is, is found
P2、P3And P5, respectively search and P2、P3And P5The adjacent point not being wiped free of, finds and P2Adjacent P1, and and P3Phase
Adjacent P4, P5There is no the second adjacent control point, to obtain dominating pair of vertices P1And P2And P3And P4。
Using said program provided by the present application, directly by judge pixel value of the control point in painting canvas whether be 0 come
Judge whether control point is wiped free of, does not have to the rectangle frame list for retaining erasing rubber, reduce the consumption to memory.
Optionally, according to the above embodiments of the present application, determining module includes：First iteration submodule, for carrying out first
Secondary interative computation, wherein first time interative computation includes：The location parameter at the first control point is assigned to the first parameter, by
The location parameter at two control points is assigned to the second parameter, obtains the mean value of the first parameter and the second parameter；Detection sub-module is used for
Whether detection iterations reach preset value；Third determination sub-module, if reaching preset value for iterations, it is determined that
Value is endpoint location；Secondary iteration submodule, if being not up to preset value for iterations, according to the corresponding point of mean value
Pixel value carries out next iteration.
Specifically, the point corresponding to above-mentioned mean value is the midpoint at the first control point and the second control point line.First control
The location parameter of the location parameter and the second control point of making point can be described by coordinate, respectively by the position at the first control point
The location parameter for setting parameter and the second control point is assigned to the first parameter and the second parameter, for according to scheduled first parameter and
Computation rule between second parameter is iterated between the first control point and the second control point, to find with it is actual
The point that erasing endpoint is closer to.
Fig. 5 is the schematic diagram according to embodiments of the present invention for carrying out first time iterative calculation, in a kind of optional embodiment,
It is m (i) to enable the first parameter, and the second parameter is n (i), and i is preset iterations.In conjunction with shown in Fig. 5, ask first P1 and P2 it
Between erasing endpoint.Enable point P1Coordinate is P1, point P2Coordinate is P2, obtains n (0)=P1, m (0)=P2 after bringing parameter into, solves m
(0) and the midpoint C of n (0)0Coordinate c (0), the as corresponding point of mean value.
Said program completes first time iteration, the C obtained by an iteration0Error with erasing endpoint may be compared with
Greatly, it therefore also needs to carry out multiple iteration, when carrying out next iteration, the assignment to n (i) He m (i) is needed to sentence
Break, namely the c (0) obtained for the first time is assigned to n (1) or m (1), needs further to be judged.Work as C0Pixel value be 0
When, illustrate C0It has been be wiped free of that, erasing endpoint should be in P1With C0Between；And work as C0Pixel value be 0 when, illustrate C0It is not wiped also
It removes, then wiping endpoint should be in P2With C0Between, next iteration can be carried out according to such rule, it has been determined that erasing endpoint
Position.
Optionally, according to the above embodiments of the present application, secondary iteration submodule includes：First assignment unit, if for
The pixel value of the corresponding point of mean value is zero, then mean value is assigned to the first parameter, and enter and obtain the first parameter and the second parameter
Mean value the step of, until iterations reach preset value；Second assignment unit, if the pixel value for the corresponding point of mean value
It is not zero, then mean value is assigned to the second parameter, and the step of entering the mean value for obtaining the first parameter and the second parameter, until repeatedly
Generation number reaches preset value.
In a kind of optional embodiment, work as C0Pixel value be 0 when, illustrate C0It has been be wiped free of that, erasing endpoint should be in P1
With C0Between, C0Relative to P2It is more nearly actual erasing endpoint, therefore by C0Coordinate c (0) be assigned to m (1), n (1)
Still value P1 calculates m (1), the corresponding point C of mean value of n (1) again1Coordinate c (1), the point is relative to C0For with reality
Erasing endpoint more closely, subsequently into C is judged1The step of whether being wiped free of.It repeats the above steps, until completing preset
Iterations obtain c (i).
In an alternative embodiment, work as C0Pixel value be 0 when, illustrate C0It is not wiped free of, erasing endpoint should
In P2With C0Between, C0Relative to P1It is more nearly actual erasing endpoint, therefore by C0Coordinate c (0) be assigned to n (1), m
(1) still value P2 calculates m (1), the corresponding point C of mean value of n (1) again1Coordinate c (1), the point is relative to C0For with reality
The erasing endpoint on border is more closely, subsequently into C is judged1The step of whether being wiped free of.It repeats the above steps, until completing default
Iterations, obtain c (i).
Optionally, according to the above embodiments of the present application, preset value 5.Specifically, when iteration 5 times, can reach preferable
Effect, therefore be arranged preset value be 5.
The application said program approaches the endpoint for being wiped free of person's handwriting using the mode of iteration, than existing scheme speed more
Soon, and by redrawing endpoint the person's handwriting endpoint after cutting will not be deformed.
Embodiment 3
According to embodiments of the present invention, a kind of storage medium is provided, storage medium includes the program of storage, wherein in journey
Equipment executes following steps where controlling storage medium when sort run：The dominating pair of vertices for obtaining pending person's handwriting in painting canvas, waits locating
Reason person's handwriting is the person's handwriting that is wiped free of of arbitrary portion, and dominating pair of vertices includes adjacent the first control point and the second control point, wherein the
One control point is the control point that part is wiped free of in pending person's handwriting, and the second control point is not to be wiped free of part in pending person's handwriting
Control point；The endpoint location where the erasing endpoint of pending person's handwriting is determined according to the first control point and the second control point；Root
The endpoint of pending person's handwriting is redrawn according to endpoint location.
Further, equipment executes following steps where also controlling storage medium when program is run：Obtain picture in painting canvas
The control point that plain value is zero；Determine that the control point that pixel is zero is the first control point；Search adjacent with the first control point the
Two control points；Determine that the first control point and the second control point constitute dominating pair of vertices.
Further, equipment executes following steps where also controlling storage medium when program is run：Change for the first time
For operation, wherein first time interative computation includes：The location parameter at the first control point is assigned to the first parameter, by the second control
The location parameter of system point is assigned to the second parameter, obtains the mean value of the first parameter and the second parameter；Whether detection iterations reach
To preset value；If iterations reach preset value, it is determined that mean value is endpoint location；If iterations are not up to default
Value then carries out next iteration according to the pixel value of the corresponding point of mean value.
Further, equipment executes following steps where also controlling storage medium when program is run：If mean value corresponds to
The pixel value of point be zero, then mean value is assigned to the first parameter, and enter the mean value for obtaining the first parameter and the second parameter
Step, until iterations reach preset value；If the pixel value of the corresponding point of mean value is not zero, mean value is assigned to second
Parameter, and the step of entering the mean value for obtaining the first parameter and the second parameter, until iterations reach preset value.
Embodiment 4
According to embodiments of the present invention, a kind of processor is provided, processor is for running program, wherein when program is run
Execute following steps：The dominating pair of vertices of pending person's handwriting in painting canvas is obtained, pending person's handwriting is the person's handwriting that arbitrary portion is wiped free of,
Dominating pair of vertices includes adjacent the first control point and the second control point, wherein the first control point is to be wiped free of in pending person's handwriting
Partial control point, the second control point are the control point for not being wiped free of part in pending person's handwriting；According to the first control point and
Two control points determine the endpoint location where the erasing endpoint of pending person's handwriting；The end of pending person's handwriting is redrawn according to endpoint location
Point.
Further, it is also executed the following steps when program is run：Obtain the control point that pixel value is zero in painting canvas；Determine picture
The control point that vegetarian refreshments is zero is the first control point；Search second control point adjacent with the first control point；Determine the first control point
Dominating pair of vertices is constituted with the second control point.
Further, it is also executed the following steps when program is run：Carry out first time interative computation, wherein first time iteration
Operation includes：The location parameter at the first control point is assigned to the first parameter, the location parameter at the second control point is assigned to
Two parameters obtain the mean value of the first parameter and the second parameter；Whether detection iterations reach preset value；If iterations reach
To preset value, it is determined that mean value is endpoint location；If iterations are not up to preset value, according to the picture of the corresponding point of mean value
Element value carries out next iteration.
Further, it is also executed the following steps when program is run：If the pixel value of the corresponding point of mean value is zero, will be equal
Value is assigned to the first parameter, and the step of entering the mean value for obtaining the first parameter and the second parameter, until iterations reach pre-
If value；If the pixel value of the corresponding point of mean value is not zero, mean value is assigned to the second parameter, and enter and obtain the first parameter
The step of with the mean value of the second parameter, until iterations reach preset value.
The embodiments of the present invention are for illustration only, can not represent the quality of embodiment.
In the above embodiment of the present invention, all emphasizes particularly on different fields to the description of each embodiment, do not have in some embodiment
The part of detailed description may refer to the associated description of other embodiment.
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, for example, the unit division, Ke Yiwei
A kind of division of logic function, formula that in actual implementation, there may be another division manner, such as multiple units or component 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 INDIRECT COUPLING or communication link by some interfaces, unit or module
It connects, can be electrical or other forms.
The unit illustrated as separating component may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, you can be located at a place, or may be distributed over multiple
On unit.Some or all of unit therein can be selected according to the actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, it can also
It is that each unit physically exists alone, it can also be during two or more units be integrated in one unit.Above-mentioned integrated list
The form that hardware had both may be used in member is realized, can also be realized in the form of SFU software functional unit.
If the integrated unit is realized in the form of SFU software functional unit and sells or use as independent product
When, it can be stored in a computer read/write memory medium.Based on this understanding, technical scheme 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 be 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：USB flash disk, read-only memory (ROM, Read-Only Memory), arbitrary access are deposited
Reservoir (RAM, Random Access Memory), mobile hard disk, magnetic disc or CD etc. are various can to 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 (10)
1. a kind of processing method of person's handwriting, which is characterized in that including：
The dominating pair of vertices of pending person's handwriting in painting canvas is obtained, the pending person's handwriting is the person's handwriting that arbitrary portion is wiped free of, described
Dominating pair of vertices includes adjacent the first control point and the second control point, wherein first control point is the pending person's handwriting
In be wiped free of the control point of part, second control point is the control point for not being wiped free of part in the pending person's handwriting；
The endpoint location where the erasing endpoint of the pending person's handwriting is determined according to first control point and the second control point；
The endpoint of the pending person's handwriting is redrawn according to the endpoint location.
2. according to the method described in claim 1, it is characterized in that, obtain painting canvas in pending person's handwriting dominating pair of vertices, including：
Obtain the control point that pixel value is zero in the painting canvas；
Determine that the control point that pixel is zero is first control point；
Search second control point adjacent with first control point；
Determine that first control point and second control point constitute the dominating pair of vertices.
3. method according to claim 1 or 2, which is characterized in that true according to first control point and the second control point
Endpoint location where the erasing endpoint of the fixed pending person's handwriting, including：
Carry out first time interative computation, wherein the first time interative computation includes：By the location parameter at first control point
It is assigned to the first parameter, the location parameter at second control point is assigned to the second parameter, obtains first parameter and institute
State the mean value of the second parameter；
Whether detection iterations reach preset value；
If the iterations reach the preset value, it is determined that the mean value is the endpoint location；
If the iterations are not up to the preset value, carried out next time according to the pixel value of the corresponding point of the mean value
Iteration.
4. according to the method described in claim 3, it is characterized in that, if the iterations are not up to the preset value,
Next iteration is carried out according to the pixel value of the corresponding point of the mean value, including：
If the pixel value of the corresponding point of the mean value is zero, the mean value is assigned to first parameter, and enter and obtain
The step of taking the mean value of first parameter and second parameter, until the iterations reach the preset value；
If the pixel value of the corresponding point of the mean value is not zero, the mean value is assigned to second parameter, and enter
The step of obtaining the mean value of first parameter and second parameter, until the iterations reach the preset value.
5. a kind of processing unit of person's handwriting, which is characterized in that including：
Acquisition module, the dominating pair of vertices for obtaining pending person's handwriting in painting canvas, the pending person's handwriting are that arbitrary portion is wiped
The person's handwriting removed, the dominating pair of vertices include adjacent the first control point and the second control point, wherein first control point is institute
The control point that part is wiped free of in pending person's handwriting is stated, second control point is not to be wiped free of part in the pending person's handwriting
Control point；
Determining module, the erasing endpoint institute for determining the pending person's handwriting according to first control point and the second control point
Endpoint location；
Module is redrawn, the endpoint for redrawing the pending person's handwriting according to the endpoint location.
6. device according to claim 5, which is characterized in that the acquisition module includes：
First acquisition submodule, for obtaining the control point that pixel value is zero in the painting canvas；
First determination sub-module, for determining that the control point that pixel is zero is first control point；
Submodule is searched, for searching second control point adjacent with first control point；
Second determination sub-module, for determining that first control point and second control point constitute the dominating pair of vertices.
7. device according to claim 5 or 6, which is characterized in that the determining module includes：
First iteration submodule, for carrying out first time interative computation, wherein the first time interative computation includes：It will be described
The location parameter at the first control point is assigned to the first parameter, and the location parameter at second control point is assigned to the second parameter,
Obtain the mean value of first parameter and second parameter；
Detection sub-module, for detecting whether iterations reach preset value；
Third determination sub-module, if reaching the preset value for the iterations, it is determined that the mean value is the end
Point position；
Secondary iteration submodule, it is corresponding according to the mean value if being not up to the preset value for the iterations
The pixel value of point carries out next iteration.
8. device according to claim 7, which is characterized in that the secondary iteration submodule includes：
The mean value is assigned to described by the first assignment unit if the pixel value for the corresponding point of the mean value is zero
First parameter, and the step of entering the mean value for obtaining first parameter and second parameter, until the iterations reach
To the preset value；
The mean value is assigned to institute by the second assignment unit if the pixel value for the corresponding point of the mean value is not zero
The second parameter is stated, and the step of entering the mean value for obtaining first parameter and second parameter, until the iterations
Reach the preset value.
9. 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：The dominating pair of vertices of pending person's handwriting in painting canvas is obtained, it is described to wait for
Processing person's handwriting is the person's handwriting that is wiped free of of arbitrary portion, and the dominating pair of vertices includes adjacent the first control point and the second control point,
Wherein, first control point is the control point that part is wiped free of in the pending person's handwriting, and second control point is described
The control point of part is not wiped free of in pending person's handwriting；It is determined according to first control point and the second control point described pending
Endpoint location where the erasing endpoint of person's handwriting；The endpoint of the pending person's handwriting is redrawn according to the endpoint location.
10. 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：The dominating pair of vertices of pending person's handwriting in painting canvas is obtained, the pending person's handwriting is the person's handwriting that arbitrary portion is wiped free of, institute
State the first control point and the second control point that dominating pair of vertices includes adjacent, wherein first control point is the pending pen
The control point of part is wiped free of in mark, second control point is the control point for not being wiped free of part in the pending person's handwriting；
The endpoint location where the erasing endpoint of the pending person's handwriting is determined according to first control point and the second control point；According to
The endpoint location redraws the endpoint of the pending person's handwriting.
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| CN201810608162.1A CN108805120A (en) | 2018-06-13 | 2018-06-13 | The treating method and apparatus of person's handwriting |
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Application publication date: 20181113 |