CN109215408A - A kind of drawing teaching auxiliary device extracted based on image outline - Google Patents
A kind of drawing teaching auxiliary device extracted based on image outline Download PDFInfo
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- CN109215408A CN109215408A CN201811384311.7A CN201811384311A CN109215408A CN 109215408 A CN109215408 A CN 109215408A CN 201811384311 A CN201811384311 A CN 201811384311A CN 109215408 A CN109215408 A CN 109215408A
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- broken line
- image
- profile
- module
- image outline
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B5/00—Electrically-operated educational appliances
- G09B5/02—Electrically-operated educational appliances with visual presentation of the material to be studied, e.g. using film strip
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B11/00—Teaching hand-writing, shorthand, drawing, or painting
- G09B11/10—Teaching painting
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- Engineering & Computer Science (AREA)
- Business, Economics & Management (AREA)
- Physics & Mathematics (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Image Analysis (AREA)
Abstract
The invention discloses a kind of drawing teaching auxiliary devices extracted based on image outline, comprising: image receiver module, profile extraction module and electronic painting screen;The profile extraction module is connect with image receiver module, electronic painting screen signal respectively;The image receiver module is used to receive the image of external equipment transmission, and image is sent to profile extraction module;Image is converted image outline by the profile extraction module, and image outline is sent to electronic painting screen;The electronic painting screen includes viewing area and drawing area, and the viewing area is for showing image outline, and the drawing area is for drawing profile.It is drawn the advantage is that: drawing beginner can be assisted to learn profile, there is good teaching efficiency.
Description
Technical field
The present invention relates to drawing teaching auxiliary devices, and in particular to a kind of drawing teaching auxiliary extracted based on image outline
Device.
Background technique
Drafting for the profile of image is the basis of drawing.Therefore, in the teaching process of drawing, for image outline
Drafting teaching be drawing teaching basis.It is therefore proposed that a kind of beginner that can help to paint learns the drawing that profile is described
Teaching auxiliary device is necessary.
Summary of the invention
In order to solve the above-mentioned problems of the prior art, it is an object of that present invention to provide one kind to be extracted based on image outline
Drawing teaching auxiliary device.The present invention can extract the profile of image, and help beginner's study profile description of painting.
A kind of drawing teaching auxiliary device extracted based on image outline of the present invention, comprising: image receiver module,
Profile extraction module and electronic painting screen;
The profile extraction module is connect with image receiver module, electronic painting screen signal respectively;
The image receiver module is used to receive the image of external equipment transmission, and image is sent to contours extract mould
Block;
Image is converted image outline by the profile extraction module, and image outline is sent to electronic painting screen;
The electronic painting screen includes viewing area and drawing area, and the viewing area is described for showing image outline
Drawing area for drawing profile.
Preferably, the image outline and the profile of drafting are combined by broken line collection, and the broken line set includes more
Broken line;The broken line is made of multiple coordinate points.
It preferably, further include silhouette contrast module;The silhouette contrast module is drawn with profile extraction module, electronics respectively
The connection of painted screen signal;
Image outline is sent to silhouette contrast module by the profile extraction module, and the electronic painting screen will be drawn
Profile be sent to silhouette contrast module;
Image outline and the profile of drafting are carried out registration comparison by the silhouette contrast module, and obtain comparison knot
Fruit.
Preferably, the folding that the silhouette contrast module passes through the broken line coordinate points of contrast images profile and the profile of drafting
Line coordinates point obtains comparing result.
It preferably, further include demonstration module;The demonstration module is believed with profile extraction module and electronic painting screen respectively
Number connection;
Image outline is sent to demonstration module by the profile extraction module, and the demonstration module is according to image outline
Broken line set in each broken line length and coordinate points generate the demonstration video for drawing the image outline, and demonstration video is sent out
It send to electronic painting screen and plays.
Preferably, the electronic painting screen is connect with a memory signals.
Preferably, the viewing area shows broken line according to the length of broken line in batches.
Preferably, broken line is divided into N number of batch according to the length of broken line by the viewing area, includes M item in each batch
Broken line;The viewing area first shows the longer batch of broken line length, then shows the shorter batch of broken line length;Same batch
Interior broken line according to broken line origin coordinates point position from top to bottom, successively shown by left-to-right.
A kind of drawing teaching auxiliary device extracted based on image outline of the present invention, the advantage is that, extraneous defeated
Entering equipment can be video camera or the intelligent terminal with camera function, communicate to connect with image receiver module, can be by reality
Contours extract is carried out after object shooting, teaching is described to drawing beginner's progress profile, drawing beginner can be certainly by the present apparatus
The description of primary learning profile.
By the way that silhouette contrast module is arranged, the image outline that original image outline and painter are drawn is subjected to registration
Comparison, allow painter grasp at any time oneself profile draw situation.The broken line of contrast images profile is long in demonstration video
Degree and coordinate points, it is preferential to draw the longer broken line of length according to broken line length arrangement drawing order.Drawing broken line when ratio simultaneously
Smaller from abscissa compared with cross, the ordinate of two endpoints of broken line, the biggish endpoint of ordinate starts to draw broken line.According to " first
It is first left and then right under after upper " reasonable drawing order be that drawing beginner demonstrates profile and draws, make the teaching efficiency of the present apparatus more
Well.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of drawing teaching auxiliary device extracted based on image outline of the present invention.
Description of symbols: 1- image receiver module, 2- profile extraction module, 3- electronic painting screen, 4- silhouette contrast mould
Block, 5- demonstration module.
Specific embodiment
As shown in Figure 1, a kind of drawing teaching auxiliary device extracted based on image outline of the present invention, comprising: figure
As receiving module 1, profile extraction module 2 and electronic painting screen 3;The profile extraction module 2 respectively with image receiver module
1,3 signal of electronic painting screen connects;The image receiver module 1 is used to receive the image of external equipment transmission, and by image
It is sent to profile extraction module 2;Contours extract algorithm, the profile extraction module 2 are equipped in the profile extraction module 2
Image outline is converted by image by contours extract algorithm, and image outline is sent to electronic painting screen 3;The electronics
Drawing screen 3 includes viewing area and drawing area, and the viewing area is for showing image outline, and the drawing area is for drawing wheel
It is wide.
Image receiver module 1 is connect by communication interface or wireless transmission with external device communication.The external equipment
It can be video camera or the intelligent terminal with camera function, such as mobile phone, tablet computer.In the use of the present invention, using intelligence
Energy terminal shoots image, and the image of shooting is then sent to image receiver module 1.Image receiver module 1 will after receiving image
Image is sent to profile extraction module 2.Profile extraction module 2 is based on contours extract algorithm and extracts image outline, and by the image
Profile is saved in a manner of broken line set.Image outline is sent to electronics after generating image outline and drawn by profile extraction module 2
Painted screen 3.The electronic painting screen 3 includes viewing area and drawing area, and the top in drawing area is arranged in viewing area.Viewing area is used for
Show image outline, drawing area is used to carry out profile drafting for user, and the image outline that user shows referring to viewing area exists
Drawing area is drawn.By carrying out contours extract to image, and the image outline of extraction is used for profile and draws teaching, drawing
Beginner can be with the description of autonomous learning profile by the present apparatus.Simultaneously because image receiver module 1 can be set with a variety of external worlds
Standby to carry out image transmitting, the material for drawing profile is abundant.
The profile of the image outline and drafting is combined by broken line collection, and the broken line set includes a plurality of broken line;
The broken line is made of multiple coordinate points.
It further include silhouette contrast module 4;The silhouette contrast module 4 respectively with profile extraction module 2, electronic painting screen
The connection of 3 signals;Image outline is sent to silhouette contrast module 4, the electronic painting screen 3 by the profile extraction module 2
The profile of drafting is sent to silhouette contrast module 4;The silhouette contrast module 4 carries out image outline and the profile of drafting
Comparison, and obtain registration result.
The broken line coordinate that the silhouette contrast module 4 passes through the broken line coordinate points of contrast images profile and the profile of drafting
Point obtains registration result.
User can choose after drawing is complete to be compared with original image outline.Electronic painting screen 3 is being drawn
The profile of drafting is sent to silhouette contrast module 4 after the completion.Original image outline is sent to profile by profile extraction module 2
Contrast module 4.Original image outline is compared silhouette contrast module 4 with the profile of drafting.Due to image outline and draw
The profile of system saves in the form of broken line set.Pass through the numerical value of the coordinate points of each broken line in comparison broken line set
Obtain the profile of drafting and the registration of original image outline.The registration the high, indicates the profile drawn and original image
Profile is closer.User can clearly grasp the reduction degree for the profile drawn by silhouette contrast module 4.
The electronic painting screen 3 is connect with a memory signals.The profile that oneself is drawn can be stored in by user
In memory.
The viewing area shows broken line according to the length of broken line in batches.It the viewing area will according to the length of broken line
Broken line is divided into N number of batch, includes M broken line in each batch;The viewing area first shows the longer batch of broken line length, so
The shorter batch of broken line length is shown afterwards;Broken line in same batch according to broken line origin coordinates point position from top to bottom, by
It is left-to-right successively to show.The numerical value of M can be customized by users.Broken line is shown in batches according to the length of broken line, in same batch
Broken line according to broken line origin coordinates point position from top to bottom, successively shown by left-to-right.User control viewing area into
Row draw when, can be drawn according to the display order of broken line, make user according to " first grow after it is short, from top to bottom, by a left side to
The sequence on the right side " draws profile, and the present apparatus is made to have more good teaching efficiency.
It further include demonstration module 5;The demonstration module 5 connects with profile extraction module 2 and 3 signal of electronic painting screen respectively
It connects;Image outline is sent to demonstration module 5 by the profile extraction module 2, and the demonstration module 5 is according to image outline
Each broken line length and coordinate points generate the demonstration video for drawing the image outline in broken line set, and demonstration video is sent to
Electronic painting screen 3 plays.In demonstration module 5, demonstration module 5 determines to draw according to the broken line length in original image outline
Sequentially, the longer broken line of length is preferentially drawn.Broken line is equally divided into N number of batch by demonstration module 5, includes M item in each batch
Broken line;It is preferential to draw the longer batch of length when demonstrating profile drafting, then draw the shorter batch of length.For same
Broken line in batch is drawn, then is successively drawn from top to bottom, by left-to-right according to the origin coordinates point position of broken line.It is single drawing
When broken line, demonstration module compares the cross of the broken line two-end-point, ordinate value, preferentially draws since the biggish endpoint of ordinate
System, if ordinate is identical, then preferentially draws since the lesser endpoint of abscissa.Demonstration module 5 is drawn according to above-mentioned comparing result
Ratch is wide, and drawing process generation demonstration video is sent at electronic painting screen 3 and is played, and watches and learning for user.It presses
Reasonable drawing order according to " first up and then down, first left and then right " is that drawing beginner demonstrates profile drafting, imitates the teaching of the present apparatus
Fruit is better.
For those skilled in the art, it can make other each according to the above description of the technical scheme and ideas
The corresponding change of kind and deformation, and all these changes and deformation all should belong to the protection model of the claims in the present invention
Within enclosing.
Claims (8)
1. a kind of drawing teaching auxiliary device extracted based on image outline characterized by comprising image receiver module (1),
Profile extraction module (2) and electronic painting screen (3);
The profile extraction module (2) is connect with image receiver module (1), electronic painting screen (3) signal respectively;
The image receiver module (1) is used to receive the image of external equipment transmission, and image is sent to contours extract mould
Block (2);
Image is converted image outline by the profile extraction module (2), and image outline is sent to electronic painting screen
(3);
The electronic painting screen (3) includes viewing area and drawing area, and the viewing area is described for showing image outline
Drawing area is for drawing profile.
2. a kind of drawing teaching auxiliary device extracted based on image outline according to claim 1, which is characterized in that described
Image outline and the profile of drafting be combined by broken line collection, the broken line set includes a plurality of broken line;The broken line by
Multiple coordinate points compositions.
3. a kind of drawing teaching auxiliary device extracted based on image outline according to claim 2, which is characterized in that also wrap
Include silhouette contrast module (4);The silhouette contrast module (4) is believed with profile extraction module (2), electronic painting screen (3) respectively
Number connection;
Image outline is sent to silhouette contrast module (4) by the profile extraction module (2), the electronic painting screen (3)
The profile of drafting is sent to silhouette contrast module (4);
Image outline and the profile of drafting are carried out registration comparison by the silhouette contrast module (4), and obtain comparing result.
4. a kind of drawing teaching auxiliary device extracted based on image outline according to claim 3, which is characterized in that described
Silhouette contrast module (4) obtain comparison by the broken line coordinate points of the broken line coordinate points of contrast images profile and the profile of drafting
As a result.
5. a kind of drawing teaching auxiliary device extracted based on image outline according to claim 2, which is characterized in that also wrap
Include demonstration module (5);The demonstration module (5) is connect with profile extraction module (2) and electronic painting screen (3) signal respectively;
Image outline is sent to demonstration module (5) by the profile extraction module (2), and the demonstration module (5) is according to figure
As profile broken line set in each broken line length and coordinate points generate and draw the demonstration video of the image outline, and will demonstration
Video is sent to electronic painting screen (3) broadcasting.
6. a kind of drawing teaching auxiliary device extracted based on image outline according to claim 1, which is characterized in that described
Electronic painting screen (3) connect with a memory signals.
7. a kind of drawing teaching auxiliary device extracted based on image outline according to claim 2, which is characterized in that described
Viewing area show broken line in batches according to the length of broken line.
8. a kind of drawing teaching auxiliary device extracted based on image outline according to claim 7, which is characterized in that described
Viewing area broken line is divided by N number of batch according to the length of broken line, include M broken line in each batch;The viewing area is first
It shows the longer batch of broken line length, then shows the shorter batch of broken line length;Broken line in same batch is according to broken line
Origin coordinates point position is successively shown from top to bottom, by left-to-right.
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CN201811384311.7A CN109215408A (en) | 2018-11-20 | 2018-11-20 | A kind of drawing teaching auxiliary device extracted based on image outline |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN109920301A (en) * | 2019-03-25 | 2019-06-21 | 成都奇伟适度教育咨询有限公司 | A kind of device of zero basic learning drawing |
CN112396879A (en) * | 2020-11-24 | 2021-02-23 | 贵州民族大学 | Mathematical education system based on virtual reality |
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WO1998032107A1 (en) * | 1997-01-21 | 1998-07-23 | Agent Based Curricula, Inc. | Method of and apparatus for teaching drawing, penmanship, and hand-eye-memory coordination |
CN201392521Y (en) * | 2009-02-25 | 2010-01-27 | 苏州瀚瑞微电子有限公司 | Touch electronic blackboard |
CN106409063A (en) * | 2016-12-16 | 2017-02-15 | 北京奇虎科技有限公司 | Robot painting teaching method and device and robot |
JP2017037614A (en) * | 2015-10-06 | 2017-02-16 | チームラボ株式会社 | Painting image display system |
CN208027602U (en) * | 2017-11-03 | 2018-10-30 | 安徽工程大学 | A kind of drawing teaching demo system |
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Patent Citations (5)
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WO1998032107A1 (en) * | 1997-01-21 | 1998-07-23 | Agent Based Curricula, Inc. | Method of and apparatus for teaching drawing, penmanship, and hand-eye-memory coordination |
CN201392521Y (en) * | 2009-02-25 | 2010-01-27 | 苏州瀚瑞微电子有限公司 | Touch electronic blackboard |
JP2017037614A (en) * | 2015-10-06 | 2017-02-16 | チームラボ株式会社 | Painting image display system |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN109920301A (en) * | 2019-03-25 | 2019-06-21 | 成都奇伟适度教育咨询有限公司 | A kind of device of zero basic learning drawing |
CN112396879A (en) * | 2020-11-24 | 2021-02-23 | 贵州民族大学 | Mathematical education system based on virtual reality |
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