CN107369185A - A kind of oil painting stylizing method based on image - Google Patents
A kind of oil painting stylizing method based on image Download PDFInfo
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- CN107369185A CN107369185A CN201710378375.5A CN201710378375A CN107369185A CN 107369185 A CN107369185 A CN 107369185A CN 201710378375 A CN201710378375 A CN 201710378375A CN 107369185 A CN107369185 A CN 107369185A
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- 238000010428 oil painting Methods 0.000 title claims abstract description 78
- 238000000034 method Methods 0.000 title claims abstract description 34
- 230000008859 change Effects 0.000 claims description 6
- 238000009826 distribution Methods 0.000 claims description 6
- IXSZQYVWNJNRAL-UHFFFAOYSA-N etoxazole Chemical compound CCOC1=CC(C(C)(C)C)=CC=C1C1N=C(C=2C(=CC=CC=2F)F)OC1 IXSZQYVWNJNRAL-UHFFFAOYSA-N 0.000 claims description 3
- 238000004590 computer program Methods 0.000 description 7
- 238000010422 painting Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000004422 calculation algorithm Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
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- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000003860 storage Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/90—Determination of colour characteristics
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T11/00—2D [Two Dimensional] image generation
- G06T11/40—Filling a planar surface by adding surface attributes, e.g. colour or texture
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Abstract
The invention discloses a kind of oil painting stylizing method based on image, including：User selects the style of oil painting；The style of oil painting is selected according to user, determines the color attribute after oil painting stylizing；Region division is carried out to image, was divided the image in region；The zone boundary of image to dividing region carries out smooth treatment, obtains the image that smooth treatment is crossed；The image crossed to smooth treatment, to each image-region, the color attribute of the image-region is counted, obtains the color attribute of each image-region；The image crossed to smooth treatment, according to the color attribute after the oil painting stylizing and the color attribute of each image-region, the color attribute of each image-region is redistributed, obtains the color attribute after each image-region is redistributed；The image crossed to smooth treatment, to each image-region, according to the color attribute after described redistribute, reset the color of each pixel of the image-region.
Description
Technical field
The present invention relates to image processing field, more particularly to a kind of oil painting stylizing method based on image.
Background technology
This year, the oil painting realized based on computerized algorithm, the technology and application scenarios of the non-photorealistic rendering such as watercolor
Start a large amount of appearance.The mode of realization is various, and the effect of realization is also had nothing in common with each other.The method of realization is mostly to simulate stroke shapes,
Successively drawn by optimized algorithm or greedy algorithm.The style varied of oil painting, and present algorithm can not often be examined when realizing
Consider the desired painting style of user.
The content of the invention
To solve problem above, the present invention provides a kind of oil painting stylizing method based on image.
A kind of oil painting stylizing method based on image provided by the invention, including：
Step S1, user selects the style of oil painting, and the style of oil painting includes：Classicism, Baroque Art, impression master
Justice, expressionism, style are presented to user by the form of picture and selected；
Step S2, the style of oil painting is selected according to user, determines the color attribute after oil painting stylizing, the painting style
Color attribute after change includes：Form and aspect, lightness, purity；
Step S3, region division is carried out to image, was divided the image in region, division methods used are：According to color
Color relation divides an image into different regions；
Step S4, the zone boundary of the image to dividing region carries out smooth treatment, obtains the image that smooth treatment is crossed；
Step S5, the image crossed to smooth treatment, to each image-region, the color of the image-region is counted
Attribute, obtains the color attribute of each image-region, and the color attribute includes：Form and aspect, lightness, purity；
Step S6, the image crossed to smooth treatment, according to the color attribute after the oil painting stylizing and each figure
As the color attribute in region, the color attribute of each image-region is redistributed, each image-region is obtained and divides again
Color attribute after matching somebody with somebody；
Step S7, the image crossed to smooth treatment, to each image-region, according to the color category after described redistribute
Property, reset the color of each pixel of the image-region.
Preferably, the color attribute determined after oil painting stylizing, including：
The color attribute of present image is determined according to the color of each pixel of present image；
The style of oil painting is selected according to user, inquiry and the immediate oil painting of color attribute of present image from database
Color attribute, and be defined as the color attribute after oil painting stylizing, wherein, it is described closest with the color attribute of present image
Oil painting color attribute, for by the first formula calculate in present image and database between the color attribute of oil painting away from
The color attribute of the oil painting minimum from, selected distance, and confirmed as the color attribute after oil painting stylizing and obtained, described the
One formula is：
Wherein, a1、a2、a3、b1、b2、b3, n be arithmetic number, dH, dB, dS are respectively present image and the image in database
Form and aspect, lightness, the absolute value of the difference of purity, dC be in present image and database between the color attribute of oil painting away from
From.
Preferably, the color attribute for determining present image, including：
Different weights is distributed to the pixel of diverse location in image, the distribution method is：According to pixel distance
The far and near distribution weight of frontier distance；Nearer apart from border, the weight is lower；The distance is pixel and all borders
In distance, the minimum distance of numerical value；
According to the color of different pixels and the weight of pixel, the color attribute of image before calculating.
Preferably, the weight of pixel is calculated according to the second formula, second formula is：
Wherein, w represents the weight of pixel, and k is positive integer, and x is pixel to the distance on border, xmaxFor present image
In, the maximum in x value.
Preferably, the color relations, including color gradient change.
Preferably, the zone boundary of described pair of image for dividing region carries out smooth treatment, including opening operation and closes fortune
Calculate.
Preferably, the color attribute to each image-region is redistributed, including：
Calculate the difference of the color attribute after each regional color attribute and oil painting stylizing；
The color attribute in each region is scaled, makes the color attribute and oil painting stylizing of the image that smooth treatment crosses
Color attribute afterwards is identical.
Preferably, the color of each pixel for resetting the image-region, including：
Make the color of each pixel of the image-region identical, and adjust the color of each pixel of the image-region,
Make the color attribute of the image-region redistributed with the image-region after color attribute it is identical.
Some beneficial effects of the present invention can include：
A kind of oil painting stylizing method based on image provided by the invention, it can be considered that the desired oil painting wind of user
Lattice, and make the color attribute of the image after oil painting stylizing and original image as far as possible close.
Other features and advantages of the present invention will be illustrated in the following description, also, partly becomes from specification
Obtain it is clear that or being understood by implementing the present invention.The purpose of the present invention and other advantages can be by the explanations write
Specifically noted structure is realized and obtained in book, claims and accompanying drawing.
Below by drawings and examples, technical scheme is described in further detail.
Brief description of the drawings
Accompanying drawing is used for providing a further understanding of the present invention, and a part for constitution instruction, the reality with the present invention
Apply example to be used to explain the present invention together, be not construed as limiting the invention.In the accompanying drawings：
Fig. 1 is a kind of flow chart of the oil painting stylizing method based on image in the embodiment of the present invention；
Embodiment
The preferred embodiments of the present invention are illustrated below in conjunction with accompanying drawing, it will be appreciated that described herein preferred real
Apply example to be merely to illustrate and explain the present invention, be not intended to limit the present invention.
Fig. 1 is a kind of flow chart of the oil painting stylizing method based on image in the embodiment of the present invention.As shown in figure 1, should
Method comprises the following steps：
Step S1, user selects the style of oil painting, and the style of oil painting includes：Classicism, Baroque Art, impression master
Justice, expressionism, style are presented to user by the form of picture and selected；
Step S2, the style of oil painting is selected according to user, determines the color attribute after oil painting stylizing, the painting style
Color attribute after change includes：Form and aspect, lightness, purity；
Step S3, region division is carried out to image, was divided the image in region, division methods used are：According to color
Color relation divides an image into different regions；
Step S4, the zone boundary of the image to dividing region carries out smooth treatment, obtains the image that smooth treatment is crossed；
Step S5, the image crossed to smooth treatment, to each image-region, the color of the image-region is counted
Attribute, obtains the color attribute of each image-region, and the color attribute includes：Form and aspect, lightness, purity；
Step S6, the image crossed to smooth treatment, according to the color attribute after the oil painting stylizing and each figure
As the color attribute in region, the color attribute of each image-region is redistributed, each image-region is obtained and divides again
Color attribute after matching somebody with somebody；
Step S7, the image crossed to smooth treatment, to each image-region, according to the color category after described redistribute
Property, reset the color of each pixel of the image-region.
According to method provided by the invention, it can be considered that the desired painting style of user, and after making oil painting stylizing
The color attribute of image and original image is as far as possible close.
In one embodiment of the invention, the color attribute after oil painting stylizing is determined, including：
The color attribute of present image is determined according to the color of each pixel of present image；
The style of oil painting is selected according to user, inquiry and the immediate oil painting of color attribute of present image from database
Color attribute, and be defined as the color attribute after oil painting stylizing, wherein, it is described closest with the color attribute of present image
Oil painting color attribute, for by the first formula calculate in present image and database between the color attribute of oil painting away from
The color attribute of the oil painting minimum from, selected distance, and confirmed as the color attribute after oil painting stylizing and obtained, described the
One formula is：
Wherein, a1、a2、a3、b1、b2、b3, n be arithmetic number, dH, dB, dS are respectively present image and the image in database
Form and aspect, lightness, the absolute value of the difference of purity, dC be in present image and database between the color attribute of oil painting away from
From.
In one embodiment of the invention, the color attribute of present image is determined, including：
Different weights is distributed to the pixel of diverse location in image, the distribution method is：According to pixel distance
The far and near distribution weight of frontier distance；Nearer apart from border, the weight is lower；The border is all borders of image, is led to
Often, an image has four borders, and the border is four borders, and for the image of irregular shape, border is to form figure
As each edge of profile；The distance is the minimum distance of numerical value in the distance on pixel and all borders；
According to the color of different pixels and the weight of pixel, the color attribute of image before calculating.
According to method provided by the invention, the difference of the importance of the pixel of diverse location in image can be examined, so as to
Preferably consider the desired painting style of user, and the color attribute of the image after oil painting stylizing and original image is connect as far as possible
Closely.
In one embodiment of the invention, the weight of pixel is calculated according to the second formula, second formula is：
Wherein, w represents the weight of pixel, and k is positive integer, and x is pixel to the distance on border, xmaxFor present image
In, the maximum in x value.
According to method provided by the invention, by increasing capacitance it is possible to increase the weight of the point of image middle part, so as to preferably consider to use
The desired painting style in family, and make the color attribute of the image after oil painting stylizing and original image as far as possible close.
In one embodiment of the invention, color relations, including color gradient change.More held by color gradient change
Easily distinguish different objects.So that each region is same object, make subsequent treatment more convenient.
In one embodiment of the invention, the zone boundary of the image to dividing region carries out smooth treatment, including
Opening operation and closed operation.By computing and closed operation, the tiny characteristics for being difficult to draw in oil painting can be removed, make oil painting stylizing
Image afterwards is closer to real oil painting.
In one embodiment of the invention, the color attribute of each image-region is redistributed, including：
Calculate the difference of the color attribute after each regional color attribute and oil painting stylizing；
The color attribute in each region is scaled, makes the color attribute and oil painting stylizing of the image that smooth treatment crosses
Color attribute afterwards is identical.
According to method provided by the invention, the color attribute of the image after oil painting stylizing and original image can be made to connect as far as possible
Closely.
In one embodiment of the invention, the color of each pixel of the image-region is reset, including：
Make the color of each pixel of the image-region identical, and adjust the color of each pixel of the image-region,
Make the color attribute of the image-region redistributed with the image-region after color attribute it is identical.
According to method provided by the invention, the image after oil painting stylizing can be made closer to real oil painting, and make oil
The painting style format after image and original image color attribute it is as far as possible close.
A kind of oil painting stylizing method based on image provided by the invention, it can be considered that the desired oil painting wind of user
Lattice, and make the color attribute of the image after oil painting stylizing and original image as far as possible close.
It should be understood by those skilled in the art that, embodiments of the invention can be provided as method, system or computer program
Product.Therefore, the present invention can use the reality in terms of complete hardware embodiment, complete software embodiment or combination software and hardware
Apply the form of example.Moreover, the present invention can use the computer for wherein including computer usable program code in one or more
The shape for the computer program product that usable storage medium is implemented on (including but is not limited to magnetic disk storage and optical memory etc.)
Formula.
The present invention is the flow with reference to method according to embodiments of the present invention, equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that can be by every first-class in computer program instructions implementation process figure and/or block diagram
Journey and/or the flow in square frame and flow chart and/or block diagram and/or the combination of square frame.These computer programs can be provided
The processors of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing devices is instructed to produce
A raw machine so that produced by the instruction of computer or the computing device of other programmable data processing devices for real
The device for the function of being specified in present one flow of flow chart or one square frame of multiple flows and/or block diagram or multiple square frames.
These computer program instructions, which may be alternatively stored in, can guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works so that the instruction being stored in the computer-readable memory, which produces, to be included referring to
Make the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one square frame of block diagram or
The function of being specified in multiple square frames.
These computer program instructions can be also loaded into computer or other programmable data processing devices so that counted
Series of operation steps is performed on calculation machine or other programmable devices to produce computer implemented processing, so as in computer or
The instruction performed on other programmable devices is provided for realizing in one flow of flow chart or multiple flows and/or block diagram one
The step of function of being specified in individual square frame or multiple square frames.
Obviously, those skilled in the art can carry out the essence of various changes and modification without departing from the present invention to the present invention
God and scope.So, if these modifications and variations of the present invention belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising including these changes and modification.
Claims (8)
- A kind of 1. oil painting stylizing method based on image, it is characterised in that including：Step S1, user selects the style of oil painting, and the style of oil painting includes：Classicism, Baroque Art, impressionism, table Existing doctrine, style are presented to user by the form of picture and selected；Step S2, the style of oil painting is selected according to user, determines the color attribute after oil painting stylizing, after the oil painting stylizing Color attribute include：Form and aspect, lightness, purity；Step S3, region division is carried out to image, was divided the image in region, division methods used are：Closed according to color System divides an image into different regions；Step S4, the zone boundary of the image to dividing region carries out smooth treatment, obtains the image that smooth treatment is crossed；Step S5, the image crossed to smooth treatment, to each image-region, the color category of the image-region is counted Property, the color attribute of each image-region is obtained, the color attribute includes：Form and aspect, lightness, purity；Step S6, the image crossed to smooth treatment, according to the color attribute after the oil painting stylizing and each image district The color attribute in domain, the color attribute of each image-region is redistributed, obtained after each image-region redistributes Color attribute；Step S7, the image crossed to smooth treatment, to each image-region, according to the color attribute after described redistribute, weight The color of each pixel of the new settings image-region.
- 2. the method as described in claim 1, it is characterised in that the color attribute determined after oil painting stylizing, including：The color attribute of present image is determined according to the color of each pixel of present image；The style of oil painting is selected according to user, inquiry and the color of the immediate oil painting of color attribute of present image from database Color attribute, and it is defined as the color attribute after oil painting stylizing, wherein, the described and present image immediate oil of color attribute The color attribute of picture, to calculate the distance between color attribute of oil painting in present image and database, choosing by the first formula The color attribute of the minimum oil painting of distance is taken, and is confirmed as the color attribute after oil painting stylizing and obtained, described first is public Formula is：<mrow> <mi>d</mi> <mi>C</mi> <mo>=</mo> <mroot> <mrow> <msub> <mi>a</mi> <mn>1</mn> </msub> <mo>&CenterDot;</mo> <msup> <mi>dH</mi> <msub> <mi>b</mi> <mn>1</mn> </msub> </msup> <mo>+</mo> <msub> <mi>a</mi> <mn>2</mn> </msub> <mo>&CenterDot;</mo> <msup> <mi>dB</mi> <msub> <mi>b</mi> <mn>2</mn> </msub> </msup> <mo>+</mo> <msub> <mi>a</mi> <mn>3</mn> </msub> <mo>&CenterDot;</mo> <msup> <mi>dS</mi> <msub> <mi>b</mi> <mn>3</mn> </msub> </msup> </mrow> <mi>n</mi> </mroot> </mrow>Wherein, a1、a2、a3、b1、b2、b3, n be arithmetic number, dH, dB, dS are respectively the color of present image and the image in database Phase, lightness, the absolute value of the difference of purity, dC are the distance between color attribute of oil painting in present image and database.
- 3. method as claimed in claim 2, it is characterised in that the color attribute for determining present image, including：Different weights is distributed to the pixel of diverse location in image, the distribution method is：According to pixel apart from border The far and near distribution weight of distance；Nearer apart from border, the weight is lower；The distance is pixel and the distance on all borders In, the minimum distance of numerical value；According to the color of different pixels and the weight of pixel, the color attribute of image before calculating.
- 4. method as claimed in claim 3, it is characterised in that：The weight of pixel is calculated according to the second formula, second formula is：<mrow> <mi>w</mi> <mo>=</mo> <mroot> <mrow> <mn>1</mn> <mo>-</mo> <msup> <mrow> <mo>&lsqb;</mo> <mfrac> <mrow> <msub> <mi>x</mi> <mrow> <mi>m</mi> <mi>a</mi> <mi>x</mi> </mrow> </msub> <mo>-</mo> <mi>x</mi> </mrow> <msub> <mi>x</mi> <mrow> <mi>m</mi> <mi>a</mi> <mi>x</mi> </mrow> </msub> </mfrac> <mo>&rsqb;</mo> </mrow> <mrow> <mn>2</mn> <mi>k</mi> </mrow> </msup> </mrow> <mrow> <mn>2</mn> <mi>k</mi> </mrow> </mroot> </mrow>Wherein, w represents the weight of pixel, and k is positive integer, and x is pixel to the distance on border, xmaxFor in present image, x Value in maximum.
- 5. the method as described in claim 1, it is characterised in that the color relations, including color gradient change.
- 6. the method as described in claim 1, it is characterised in that the zone boundary of the described pair of image for dividing region carries out light Sliding processing, including opening operation and closed operation.
- 7. the method as described in claim 1, it is characterised in that the color attribute to each image-region is divided again Match somebody with somebody, including：Calculate the difference of the color attribute after each regional color attribute and oil painting stylizing；The color attribute in each region is scaled, after the color attribute and oil painting stylizing that make the image that smooth treatment crosses Color attribute is identical.
- 8. the method as described in claim 1, it is characterised in that the face of each pixel for resetting the image-region Color, including：Make the color of each pixel of the image-region identical, and adjust the color of each pixel of the image-region, make this Color attribute after the color attribute of image-region is redistributed with the image-region is identical.
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| CN108449590A (en) * | 2018-03-30 | 2018-08-24 | 盎锐（上海）信息科技有限公司 | Image processing method and device |
| CN110969676A (en) * | 2019-12-23 | 2020-04-07 | 无锡幻世界软件科技有限公司 | Method for quickly forming role design of hand-trip oil painting |
| CN114037634A (en) * | 2021-11-25 | 2022-02-11 | 阿坝师范学院 | Oil painting style identification method based on image |
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| CN110969676A (en) * | 2019-12-23 | 2020-04-07 | 无锡幻世界软件科技有限公司 | Method for quickly forming role design of hand-trip oil painting |
| CN110969676B (en) * | 2019-12-23 | 2024-04-19 | 深圳市玛贝尔动漫文化发展有限公司 | Rapid forming method for character design of hand-swimming oil painting |
| CN114037634A (en) * | 2021-11-25 | 2022-02-11 | 阿坝师范学院 | Oil painting style identification method based on image |
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| CN107369185B (en) | 2020-02-11 |
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