CN107180443A - A kind of Freehandhand-drawing animation producing method and its device - Google Patents
A kind of Freehandhand-drawing animation producing method and its device Download PDFInfo
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- G—PHYSICS
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- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
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Abstract
The invention provides a kind of Freehandhand-drawing animation producing method and its device.Methods described includes：Obtain some SVG format pictures；Parse the SVG format pictures and extract the picture path of the SVG format pictures；According to predetermined reformulation rule, reconfigure the order in the picture path to generate Freehandhand-drawing path；Based on the corresponding Freehandhand-drawing animation of the Freehandhand-drawing coordinates measurement.This method can realize the extraction operation in picture path in SVG figures, and accordingly generate corresponding Freehandhand-drawing animation, the effective manufacturing process for simplifying Freehandhand-drawing animation and the producing efficiency for improving Freehandhand-drawing animation, the convenient generation Freehandhand-drawing animation corresponding with SVG figures.
Description
Technical field
The present invention relates to technical field of image processing, more particularly to a kind of Freehandhand-drawing animation producing method and its device.
Background technology
JPEG（Joint Photographic Experts GROUP）It is by International Standards Organization（ISO:
International Standardization Organization）And Consultative Committee on International Telephone and Telegraph (CCITT)（CCITT:
Consultation Commitee of the International Telephone and Telegraph）For still image
The first international digital Standard of image compression set up, is also compression of images mark using always so far, most widely used
It is accurate.JPEG is due to that can provide lossy compression method, therefore compression ratio can reach the incomparable degree of other conventional compression algorithms.
Image file storage format PNG, its purpose of design is attempt to substitute GIF and tiff file form, while increase by one
Characteristic not available for a little gif file forms.Its title derives from " Portable Network Graphics (Portable Network
Graphic Format, PNG) " PNG is used for when storing gray level image, and the depth of gray level image can more to 16, storage color
During image, the depth of coloured image can more to 48, and can also store the α channel datas of more to 16.PNG is used from LZ77
The lossless data compression algorithms of derivation, are generally used in JAVA programs, webpage or S60 programs, high with compression ratio, generation text
The characteristics of part small volume.
SVG（Scalable Vector Graphics saleable vector graphics）It is a kind of language of use XML definition, is used for
Two-dimensional vector and vector/grid graph are described.SVG provides the Drawing Object of 3 types：Vector graphics
（Vectorgraphicshape is for example：The path being made up of straight line and curve）, image (image), text (text).Figure pair
As can be also grouped, added the operation such as pattern, conversion, combination, feature set includes nested convert
（nestedtransformations）, shear path（clippingpaths）, alpha masks（alphamasks）, filter effect
Really（filtereffects）, template object（templateobjects）With other extensions（extensibility）.
SVG figures are can interacting and dynamic, can be embedded in animated element in SVG figures or be defined by script
Animation.It has the advantage that GIF popular on current network and jpeg format can not possess.For example, can be with arbitrarily enlarged figure
It has been shown that, but not sacrifice picture quality or editable and searchable state can also be retained in SVG figures.In addition, one
As for SVG file compared with JPEG and GIF formatted files, data volume is also much smaller, and speed of download is very fast.With technology
Constantly ripe and exploitation, SVG will provide some new graphics standards for Web.
As can be seen that actually preserving picture path in SVG figures.But in existing application process, not excessively
The picture path being related in SVG figures utilization or identification.In addition, for the making of Freehandhand-drawing animation, typically using
Completed by hand in animation or video production software, efficiency has much room for improvement.
Therefore, prior art is also to be developed.
The content of the invention
Embodiment of the present invention aims to provide a kind of Freehandhand-drawing animation producing method and its device, and its purpose aims to solve the problem that existing
The technology of picture path in to(for) SVG figures is under-utilized, the problem of Freehandhand-drawing cartoon making cost is high.
In order to solve the above technical problems, the technical scheme that embodiment of the present invention is used is to provide a kind of Freehandhand-drawing animation
Generation method.Methods described includes：Obtain some SVG format pictures；Parse the SVG format pictures and extract the SVG lattice
The picture path of formula picture；According to predetermined reformulation rule, reconfigure the order in the picture path to generate Freehandhand-drawing path；
Based on the corresponding Freehandhand-drawing animation of the Freehandhand-drawing coordinates measurement.
Described method, wherein, it is described be based on the corresponding Freehandhand-drawing animation of the Freehandhand-drawing coordinates measurement after, methods described
Also include：
Some motion pictures are intercepted in the Freehandhand-drawing animation；
Based on the motion picture, the Dynamic Graph of generation MP4 format videos or GIF forms.
Described method, wherein, the predetermined reformulation rule is accustomed to for the drawing of user.
Described method, wherein, the picture path for extracting the SVG format pictures is specifically included：Pass through canonical
With algorithm, the picture path of the SVG format pictures is extracted.
Described method, wherein, it is described to be based on the corresponding Freehandhand-drawing animation of the Freehandhand-drawing coordinates measurement, specifically include：Institute
Stating increases default drawing gesture on Freehandhand-drawing path；Using Freehandhand-drawing drawing engine, the Freehandhand-drawing animation is generated.
Moved in order to solve the above technical problems, another technical scheme that embodiment of the present invention is used is to provide a kind of Freehandhand-drawing
Draw generating means.Described device includes：Load-on module, for obtaining some SVG format pictures；Parsing module, for parsing
State SVG format pictures and extract the picture path of the SVG format pictures；Recombination module, for according to predetermined reformulation rule,
The order in the picture path is reconfigured to generate Freehandhand-drawing path；Freehandhand-drawing animation, for based on Freehandhand-drawing path life
Into corresponding Freehandhand-drawing animation.
Described device, wherein, described device also includes：
Output module, for intercepting some motion pictures in the Freehandhand-drawing animation；And based on the motion picture, generation
The Dynamic Graph of MP4 format videos or GIF forms.
Described device, wherein, the predetermined reformulation rule is accustomed to for the drawing of user.
Described device, wherein, the parsing module specifically for：By canonical matching algorithm, the SVG forms are extracted
The picture path of picture.
Described device, wherein, the Freehandhand-drawing animation specifically for：Increase default paint on the Freehandhand-drawing path
Draw gesture；And using Freehandhand-drawing drawing engine, generate the Freehandhand-drawing animation.
The beneficial effect of embodiment of the present invention is：Prior art is different from, a kind of Freehandhand-drawing animation life that the present invention is provided
Into method and its device, the extraction operation in picture path in SVG figures can be realized, and accordingly generates corresponding Freehandhand-drawing animation,
The effective manufacturing process for simplifying Freehandhand-drawing animation and the producing efficiency for improving Freehandhand-drawing animation, convenient generation are relative with SVG figures
The Freehandhand-drawing animation answered.
Brief description of the drawings
Fig. 1 is the method flow diagram of Freehandhand-drawing animation producing method provided in an embodiment of the present invention；
Fig. 2 is the schematic diagram of Freehandhand-drawing animation provided in an embodiment of the present invention；
Fig. 3 is the functional block diagram of Freehandhand-drawing animation engine provided in an embodiment of the present invention
Fig. 4 is the method flow diagram for the Freehandhand-drawing animation producing method that another embodiment of the present invention is provided；
Fig. 5 is the structured flowchart of Freehandhand-drawing animation producing device provided in an embodiment of the present invention.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only to explain the present invention, not
For limiting the present invention.
Fig. 1 is a kind of Freehandhand-drawing animation producing method provided in an embodiment of the present invention.As shown in figure 1, methods described is included such as
Lower step：
100：Obtain some SVG format pictures.As described above, in the figure or picture of SVG forms, be stored with corresponding figure
Shape path（The path being made up of straight line and curve）.In application process, it can select to obtain SVG therein according to actual needs
Format picture is simultaneously loaded, and is used as the basis of generation Freehandhand-drawing animation.
200：Parse the SVG format pictures and extract the picture path of the SVG format pictures.It is determined that SVG forms
After picture, the data that it is included can be parsed and are therefrom extracted with the path of picture or figure.Path is a series of
What straight line and curve were constituted, the set with time sequencing, All Paths can combine to form corresponding SVG format pictures.
In certain embodiments, the mode of canonical matching algorithm can be specifically used to be stored in the SVG forms to extract
Picture path in picture.
300：According to predetermined reformulation rule, reconfigure the order in the picture path to generate Freehandhand-drawing path.From institute
State to extract in SVG format pictures and obtain path with the order of itself.The need for meeting Freehandhand-drawing animation authenticity etc., Ke Yigen
According to some predetermined rules, reconfigure these and extract the picture path obtained, form a drawing road with rational sequence
Footpath.
Alternatively, the reformulation rule can be the principle or rule for determining or setting according to actual conditions, for example
The drawing of the user obtained after gathering and analyze by mass data is accustomed to, including the part that drawing is sketched the contours first, the side of drawing
To etc..Those skilled in the art can be carried out certain adjustment to the reformulation rule, replace or become according to actual needs
Change, so that the Freehandhand-drawing path of generation more conforms to the drawing custom of the actual mankind.
400：Based on the corresponding Freehandhand-drawing animation of the Freehandhand-drawing coordinates measurement., can be automatic accordingly it is determined that behind Freehandhand-drawing path
The corresponding Freehandhand-drawing animation of generation.The Freehandhand-drawing animation refers to what is be made up of a series of continuous picture frames, to represent picture
Or the animation of figure painting order.The Freehandhand-drawing animation can apply to the methods such as drawing video teaching, with widely
Application.As shown in Fig. 2 being provided in an embodiment of the present invention, one of sectional drawing of Freehandhand-drawing animation.
In one embodiment of the invention, the step 400 specifically can further include：
First, default drawing gesture is increased on the Freehandhand-drawing path.The drawing gesture is to pre-set or keep
, the gesture picture to reflect the action of hand in actual painting process.It can use the figure of any suitable format, as
One of element of Freehandhand-drawing animation, with the change in path, there is provided more true to nature or press close to the hand of display for corresponding change
Paint animation.
Then, using Freehandhand-drawing drawing engine, the Freehandhand-drawing animation is generated.The Freehandhand-drawing animation engine is according to Freehandhand-drawing road
Footpath, connecting inner can call resource, automatically generate the One function module of corresponding Freehandhand-drawing animation.Freehandhand-drawing animation is on video
Timeline be based on the Freehandhand-drawing path and determine, that is, Freehandhand-drawing animation can be in playing process, and figure is according to the Freehandhand-drawing
Path is sequentially formed, and the drawing gesture of addition is then moved according to the path locus in figure layer.
Fig. 3 is the configuration diagram of Freehandhand-drawing animation engine provided in an embodiment of the present invention.As shown in figure 3, the Freehandhand-drawing is dynamic
Drawing engine includes：Carry out picture Freehandhand-drawing animation engine（ANIM）, external process for exposing function（functions）, public instrument
（tool）, stored items data table（list）And drawing control（animator）Etc. functional module.
Wherein, the ANIM is engine body.The all items data that are stored with the list are for calling, under the list
Multiple sublists can also be included, such as PageList, SpriteList, EffectList are respectively used to preserve correspondence project
Data.
ANIM can use the PageList shown in Fig. 3 to preserve page listings, and SpriteList preserves SVG the layers lists
And algorithm list is preserved by AlgorithmList.Drawing control（animator）Then it is used for the broadcasting for controlling Freehandhand-drawing animation,
Such as animator control Freehandhand-drawing animation initialization init, play play, stop playing stop and pause pause.
The Freehandhand-drawing animation producing method that Fig. 4 provides for another embodiment of the present invention.In addition to the step shown in Fig. 1, such as Fig. 4 institutes
Show, methods described also comprises the following steps：
500：Some motion pictures are intercepted in the Freehandhand-drawing animation.When the motion picture is several in the Freehandhand-drawing animation
The picture frame at quarter.Truncated picture number of frames is needed to be determined according to the need for actual conditions.
600：Based on the motion picture, the Dynamic Graph of generation MP4 format videos or GIF forms.With these picture frames
（That is motion picture）Based on, coordinate the parameters such as corresponding time shaft（Several picture frames therein are for example selected as key
Frame）Afterwards, the Dynamic Graph of corresponding MP4 format videos or GIF forms can be generated.
In embodiments of the present invention, the data source used is to preserve the SVG format pictures in path.But in some embodiments
In, it can also be provided further by adjusting or changing some process steps for picture using the embodiment of the present invention
Freehandhand-drawing animation engine realize the Freehandhand-drawing Automatic Generation of Computer Animation to more different types of data sources.
For example, for PNG, GIF or JPG picture, it is possible to use front end JS Image objects and CanvasAPI is known
After its other wide high color dot array data, perform step 400 to complete to smear Freehandhand-drawing animation.
In embodiments of the present invention, using the path preserved in SVG figures, it is reassembled as behind Freehandhand-drawing path, Ke Yifang
Just automation generates Freehandhand-drawing animation.This method it is creative make use of the path preserved in SVG figures as generation Freehandhand-drawing animation
Path, improve the producing efficiency of Freehandhand-drawing animation.And further these Freehandhand-drawing animations can be intercepted which part
The mode of picture frame, generates different video formats to meet different use demands.
The embodiment of the present invention additionally provides a kind of Freehandhand-drawing animation producing device.As shown in figure 5, described device can include：
Load-on module 100, parsing module 200, recombination module 300 and Freehandhand-drawing animation 400.
Wherein, the load-on module 100 is used to obtain some SVG format pictures.The parsing module 200 is used to parse institute
State SVG format pictures and extract the picture path of the SVG format pictures.The recombination module 300 is used for according to predetermined weight
Group rule, reconfigures the order in the picture path to generate Freehandhand-drawing path.The Freehandhand-drawing animation 400 is used to be based on institute
State the corresponding Freehandhand-drawing animation of Freehandhand-drawing coordinates measurement.Specifically, the predetermined reformulation rule is accustomed to for the drawing of user.
In some embodiments of the invention, the parsing module 200 specifically for：By canonical matching algorithm, extract
The picture path of the SVG format pictures.The Freehandhand-drawing animation 400 specifically for：Increase on the Freehandhand-drawing path pre-
If drawing gesture；And using Freehandhand-drawing drawing engine, generate the Freehandhand-drawing animation.
Alternatively, as shown in figure 5, described device can also include：Output module 500.The output module 500 is used for
Some motion pictures are intercepted in the Freehandhand-drawing animation；And based on the motion picture, generation MP4 format videos or GIF lattice
The Dynamic Graph of formula.
Professional should further appreciate that, each example described with reference to the embodiments described herein
Unit and algorithm steps, can be realized with electronic hardware, computer software or the combination of the two, hard in order to clearly demonstrate
The interchangeability of part and software, generally describes the composition and step of each example according to function in the above description.
These functions are performed with hardware or software mode actually, depending on the application-specific and design constraint of technical scheme.
Professional and technical personnel can realize described function to each specific application using distinct methods, but this realize
It is not considered that beyond scope of the present application.Described computer software can be stored in computer read/write memory medium, the journey
Sequence is upon execution, it may include such as the flow of the embodiment of above-mentioned each method.Wherein, described storage medium can for magnetic disc, CD,
Read-only memory or random access memory etc..
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
The present invention is described in detail, it will be understood by those within the art that：It still can be to foregoing each implementation
Technical scheme described in example is modified, or carries out equivalent substitution to which part technical characteristic；And these modification or
Replace, the essence of appropriate technical solution is departed from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (10)
1. a kind of Freehandhand-drawing animation producing method, it is characterised in that methods described includes：
Obtain some SVG format pictures；
Parse the SVG format pictures and extract the picture path of the SVG format pictures；
According to predetermined reformulation rule, reconfigure the order in the picture path to generate Freehandhand-drawing path；
Based on the corresponding Freehandhand-drawing animation of the Freehandhand-drawing coordinates measurement.
2. according to the method described in claim 1, it is characterised in that be based on the corresponding Freehandhand-drawing of the Freehandhand-drawing coordinates measurement described
After animation, methods described also includes：
Some motion pictures are intercepted in the Freehandhand-drawing animation；
Based on the motion picture, the Dynamic Graph of generation MP4 format videos or GIF forms.
3. according to the method described in claim 1, it is characterised in that the predetermined reformulation rule is accustomed to for the drawing of user.
4. according to the method described in claim 1, it is characterised in that the picture path for extracting the SVG format pictures, tool
Body includes：
By canonical matching algorithm, the picture path of the SVG format pictures is extracted.
5. according to the method described in claim 1, it is characterised in that described to be moved based on the corresponding Freehandhand-drawing of the Freehandhand-drawing coordinates measurement
Draw, specifically include：
Increase default drawing gesture on the Freehandhand-drawing path；
Using Freehandhand-drawing drawing engine, the Freehandhand-drawing animation is generated.
6. a kind of Freehandhand-drawing animation producing device, it is characterised in that described device includes：
Load-on module, for obtaining some SVG format pictures；
Parsing module, for parsing the SVG format pictures and extracting the picture paths of the SVG format pictures；
Recombination module, for according to predetermined reformulation rule, reconfiguring the order in the picture path to generate Freehandhand-drawing path；
Freehandhand-drawing animation, for based on the corresponding Freehandhand-drawing animation of the Freehandhand-drawing coordinates measurement.
7. device according to claim 6, it is characterised in that described device also includes：
Output module, for intercepting some motion pictures in the Freehandhand-drawing animation；And based on the motion picture, generation
The Dynamic Graph of MP4 format videos or GIF forms.
8. device according to claim 6, it is characterised in that the predetermined reformulation rule is accustomed to for the drawing of user.
9. device according to claim 6, it is characterised in that the parsing module specifically for：Matched and calculated by canonical
Method, extracts the picture path of the SVG format pictures.
10. device according to claim 6, it is characterised in that the Freehandhand-drawing animation specifically for：In the Freehandhand-drawing
Increase default drawing gesture on path；And using Freehandhand-drawing drawing engine, generate the Freehandhand-drawing animation.
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| CN107592565A (en) * | 2017-09-29 | 2018-01-16 | 深圳市前海手绘科技文化有限公司 | A kind of method that Freehandhand-drawing video elementary is quickly combined in video |
| CN107665186A (en) * | 2017-09-29 | 2018-02-06 | 深圳市前海手绘科技文化有限公司 | A kind of peculiar font generation method |
| CN107808554A (en) * | 2017-09-26 | 2018-03-16 | 上海欧美拉光电股份有限公司 | A kind of intellectual development drawing entertainment experience equipment for being used to cultivate people |
| CN108846386A (en) * | 2018-07-10 | 2018-11-20 | 深圳市前海手绘科技文化有限公司 | A kind of hand drawing pattern intelligent recognition and correcting method |
| CN109035357A (en) * | 2018-07-10 | 2018-12-18 | 深圳市前海手绘科技文化有限公司 | A kind of automatic drawing method of artificial intelligence |
| CN109858421A (en) * | 2019-01-24 | 2019-06-07 | 广东第二师范学院 | A kind of Android platform person's handwriting back method and device based on scalable vector graphics |
| CN110610535A (en) * | 2019-08-19 | 2019-12-24 | 武大吉奥信息技术有限公司 | Vector data-based method for realizing configurable front-end pure JS map animation set |
| CN111047671A (en) * | 2019-12-24 | 2020-04-21 | 成都来画科技有限公司 | Optimization method of drawing path of hand-drawn picture and storage medium |
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| CN107665186A (en) * | 2017-09-29 | 2018-02-06 | 深圳市前海手绘科技文化有限公司 | A kind of peculiar font generation method |
| CN107592565A (en) * | 2017-09-29 | 2018-01-16 | 深圳市前海手绘科技文化有限公司 | A kind of method that Freehandhand-drawing video elementary is quickly combined in video |
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| CN109035357A (en) * | 2018-07-10 | 2018-12-18 | 深圳市前海手绘科技文化有限公司 | A kind of automatic drawing method of artificial intelligence |
| CN108846386B (en) * | 2018-07-10 | 2022-06-24 | 深圳市前海手绘科技文化有限公司 | Intelligent identification and correction method for hand-drawn pattern |
| CN108846386A (en) * | 2018-07-10 | 2018-11-20 | 深圳市前海手绘科技文化有限公司 | A kind of hand drawing pattern intelligent recognition and correcting method |
| CN109858421A (en) * | 2019-01-24 | 2019-06-07 | 广东第二师范学院 | A kind of Android platform person's handwriting back method and device based on scalable vector graphics |
| CN109858421B (en) * | 2019-01-24 | 2023-06-06 | 广东第二师范学院 | Android platform handwriting playback method and device based on scalable vector graphics |
| CN110610535A (en) * | 2019-08-19 | 2019-12-24 | 武大吉奥信息技术有限公司 | Vector data-based method for realizing configurable front-end pure JS map animation set |
| CN110610535B (en) * | 2019-08-19 | 2023-05-09 | 吉奥时空信息技术股份有限公司 | Method for realizing configurable front-end pure JS map animation set based on vector data |
| CN111047671A (en) * | 2019-12-24 | 2020-04-21 | 成都来画科技有限公司 | Optimization method of drawing path of hand-drawn picture and storage medium |
| CN111047671B (en) * | 2019-12-24 | 2023-05-16 | 成都来画科技有限公司 | Method for optimizing drawing path of hand-drawn picture and storage medium |
| WO2022033137A1 (en) * | 2020-08-11 | 2022-02-17 | 深圳市前海手绘科技文化有限公司 | Method for generating gif file on basis of hand-drawn video |
| WO2022033319A1 (en) * | 2020-08-11 | 2022-02-17 | 深圳市前海手绘科技文化有限公司 | Method for applying combined source materials to hand-drawn animation |
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