CN102819857B - Method for creating cartoon character face in mobile phone based on whitening and skin tendering - Google Patents
Method for creating cartoon character face in mobile phone based on whitening and skin tendering Download PDFInfo
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- CN102819857B CN102819857B CN201210261327.5A CN201210261327A CN102819857B CN 102819857 B CN102819857 B CN 102819857B CN 201210261327 A CN201210261327 A CN 201210261327A CN 102819857 B CN102819857 B CN 102819857B
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Abstract
The invention discloses a method for creating a cartoon character face in a mobile phone based on whitening and skin tendering. The method comprises the steps of extracting sample points and carrying out whitening processing or charcoal simulation processing on an original drawing. According to the method disclosed by the invention, a simple and practical digital image processing algorithm is used and more attention is paid to reducing the data volume and increasing the operation efficiency of a CPU (Central Processing Unit); the DIY (Do It Yourself) operation is carried out on a personal mobile phone of a mobile phone subscriber to create a mobile phone cartoon works with a unique artistic style; and in addition, the method is low in creation cost and quick in operation effect.
Description
Technical field
The present invention relates to a kind of cartoon character on mobile phone types of facial makeup in Beijing operas creative method based on brightening tender skin.
Background technology
For yellow, often delicate as beautiful taking skin, not yet find by image processing techniques, based on handset processes platform, traditional digital photograph is transform as to this type of and has the report of the cartoon that brightens tender skin effect.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of cartoon character on mobile phone types of facial makeup in Beijing operas creative method based on brightening tender skin, and this cartoon character on mobile phone types of facial makeup in Beijing operas creative method data processing based on brightening tender skin is fast, easy to implement.
The technical solution of invention is as follows:
Based on a cartoon character on mobile phone types of facial makeup in Beijing operas creative method that brightens tender skin, adopt one of following two kinds of methods to operate original image:
Method 1:
Step 1: user selects a typical application A, and calculate brightness value Y corresponding to typical application A according to following formula
1;
Y
1=0.257*r
1+ 0.504*g
1+ 0.98*b
1, wherein r
in, g
in, b
inbe respectively the RGB color component of typical application A;
Step 2: solve the output of each pixel by completing line by line by column following step 3 ~ step 9 traversal;
Step 3: according to current pixel color value r
in, g
in, b
incalculate the brightness value Y of current pixel
in;
Computing formula is Y=0.257*r
in+ 0.504*g
in+ 0.98*b
in, wherein r
in, g
in, b
infor the original RGB value of current pixel point;
Step 4: according to Y
inthe interval M coefficient sets of calculating of brightness step at place, M coefficient sets comprises three part M
1, M
2, M
3: computing method are:
Y
in<100,M
1=0.4,M
2=0.2,M
3=0.1；
100≤Y
in≤200,M
1=0.2,M
2=0.1,M
3=0.05；
Y
in<200,M
1=0.1,M
2=0.05,M
3=0.025；
Step 5: according to Y
inand Y
1difference calculate brightness decay coefficient L
d1;
L
d1=(Y
in-Y
1)/Y
in;
Step 6: according to brightness decay coefficient L
d1adjust M coefficient sets:
M
1=M
1(1-L
d1)；
M
2=M
2(1-L
d1)；
M
3=M
3(1-L
d1)；
Step 7: while being less than variation width variationWidth as this pixel and the aberration of selected sample point, going to step (8), otherwise go to step 9;
Step 8: according to calculating the M coefficient sets obtaining, start paleization and move look process:
The look that moves of current pixel point operates rear output component r
out, g
out, b
outprovided by following formula;
r
out=abs(r
in+(M
1*r
in))；
g
out=abs(g
in+(M
2*g
in))；
b
out=abs(b
in+(M
3*b
in))；
In formula, abs function is the operation that takes absolute value;
Step 9: without operation;
Method 2:
Step a: to the operation of full figure gray processing, obtain the I of each pixel
in;
Step b: be white to reserved data space zero clearing of depositing output image;
Step c: the gray-scale value I that calculates the color blend typical application of user's selection
s1;
Steps d: complete following step e ~ step g and solve the output of each pixel by traveling through line by line by column each pixel;
Step e: if, the gray-scale value I of current pixel
inwith model color shade value I
s1difference while being less than variation width variationWidth, turn to white without any operation because this pixel of step b takes off automatically; Otherwise, go to step f;
Step f: go out Y according to current pixel color exploitation
inand and then according to Y
inthe interval M calculating in M coefficient sets of brightness step at place
1, computing method are as follows:
Y
in<100,M
1=0.4；
100≤Y
in≤200,M
1=0.2；
Y
in<200,M
1=0.1；
Step 7: the output I that obtains current pixel point
out=abs (I
in-(M
1* I
in)).
Variation width variationWidth span is 1～100.
Beneficial effect:
Cartoon character on mobile phone types of facial makeup in Beijing operas creative method based on brightening tender skin of the present invention, taking digital photograph as material, based on handset processes platform, by former photo be transformed into different styles, there is the image that brightens tender skin effect, on animation server or cellphone subscriber individual's mobile phone, carry out DIY operation, create the cartoon character that effect is peculiar, be different from traditional digital photograph.
The present invention uses simple and practical Digital Image Processing algorithm, note reducing data volume and improve CPU operational efficiency, on cellphone subscriber individual's mobile phone, carry out DIY operation, create the mobile phone cartoon works with unique artistic style, make the restricted mobile phone cartoon works on mobile phone screen size and mobile phone computing power can be with cheap creation cost and operational effect fast.
Brief description of the drawings:
Fig. 1 is that (figure a, d and f are former figure, and figure b and c are respectively and figure a is once moved to look brighten with twice and move the design sketch that look brightens for black race, the former figure of the Miss of the yellow race and the look whitening effect comparison diagram that moves that formed by this patent; Figure e and figure g are respectively figure d and figure f are carried out moving for twice the design sketch that look brightens);
Fig. 2 be the former figure of the Miss of black race and with the high light whitening effect comparison diagram being formed by this patent (figure a is former figure, figure b and c be respectively to figure a once move look brighten with twice move the design sketch that look brightens);
Fig. 3 is that carbon is drawn simulate effect figure; (wherein scheming a is to the design sketch after Fig. 1 f operation, and figure b is the design sketch to Fig. 1 d operation, and figure c is former figure, and figure d is to the design sketch after figure c operation.）
Fig. 4 is the affect schematic diagram of variation width on whitening effect.Wherein, (a) for variation width is 10 o'clock design sketchs, (b) for variation width is 90 o'clock design sketchs.
Embodiment
Below with reference to specific embodiment, the present invention is described in further details:
Embodiment 1:
Based on a cartoon character on mobile phone types of facial makeup in Beijing operas creative method that brightens tender skin, it is characterized in that, adopt one of following two kinds of methods to operate original image:
Method 1: realization moves look by Metzler matrix image and brightens tender skin
Step 1: user selects a typical application A, and calculate brightness value Y corresponding to typical application A according to following formula
1;
Y
1=0.257*r
1+ 0.504*g
1+ 0.98*b
1, wherein r
in, g
in, b
inbe respectively the RGB color component of typical application A;
Step 2: solve the output of each pixel by completing line by line by column following step 3 ~ step 9 traversal;
Step 3: according to current pixel color value r
in, g
in, b
incalculate the brightness value Y of current pixel
in;
Computing formula is Y=0.257*r
in+ 0.504*g
in+ 0.98*b
in, wherein r
in, g
in, b
infor the original RGB value of current pixel point;
Step 4: according to Y
inthe interval M coefficient sets of calculating of brightness step at place, M coefficient value comprises three component M
1, M
2, M
3: computing method are:
Y
in<100,M
1=0.4,M
2=0.2,M
3=0.1；
100≤Y
in≤200,M
1=0.2,M
2=0.1,M
3=0.05；
Y
in<200,M
1=0.1,M
2=0.05,M
3=0.025；
Step 5: according to Y
inand Y
1difference calculate brightness decay coefficient L
d1;
L
d1=(Y
in-Y
1)/Y
in;
Step 6: according to brightness decay coefficient L
d1adjust M coefficient sets:
M
1=M
1(1-L
d1)；
M
2=M
2(1-L
d1)；
M
3=M
3(1-L
d1)；
Step 7: as this pixel and the aberration of selected sample point are less than variation width variationWidth, go to step (8), otherwise go to step 9;
Step 8: according to calculating the M coefficient sets obtaining, start paleization and move look process:
The look that moves of current pixel point operates rear output component r
out, g
out, b
outprovided by following formula;
r
out=abs(r
in+(M
1*r
in))；
g
out=abs(g
in+(M
2*g
in))；
b
out=abs(b
in+(M
3*b
in))；
In formula, abs function is the operation that takes absolute value;
Step 9: without operation;
Method 2:
Realize carbon and draw simulation.It is the very personnalité picture kind of one that carbon (powder) is drawn, and it can be combined in thick lines gimmick and fine and smooth gimmick in same picture.Concrete steps are as follows:
Step 1: to the operation of full figure gray processing, obtain the I of each pixel
in;
Step 2: be white to reserved data space zero clearing of depositing output image;
Step 3: the gray-scale value I that calculates the color blend typical application of user's selection
s1;
Step 4: complete following step e ~ step g and solve the output of each pixel by traveling through line by line by column each pixel;
Step 5: if, the gray-scale value I of current pixel
inwith model color shade value I
s1difference while being less than variation width variationWidth, turn to white without any operation because this pixel of step b takes off automatically; Otherwise, go to step 6;
Step 6: go out Y according to current pixel color exploitation
inand and then according to Y
inthe interval M calculating in M coefficient of brightness step at place
1, computing method are as follows:
Y
in<100,M
1=0.4；
100≤Y
in≤200,M
1=0.2；
Y
in<200,M
1=0.1；
Step 7: the output I that obtains current pixel point
out=abs (I
in-(M
1* I
in)).
Concrete implementation result figure is with reference to Fig. 1-3; Variation width can be soundd out and select according to whitening effect by user, and span is 1～100, and value is larger, and the region affecting is larger, referring to Fig. 4.
Claims (2)
1. the cartoon character on mobile phone types of facial makeup in Beijing operas creative method based on brightening tender skin, is characterized in that, adopts following methods to operate original image:
Step 1: user selects a typical application A, and calculate brightness value Y corresponding to typical application A according to following formula
1;
Y
1=0.257*r
1+ 0.504*g
1+ 0.98*b
1, wherein r
1, g
1, b
1be respectively the RGB color component of typical application A;
Step 2: solve the output of each pixel by completing line by line by column following step 3～step 9 traversal;
Step 3: according to current pixel color value r
in, g
in, b
incalculate the brightness value Y of current pixel
in;
Computing formula is Y
in=0.257*r
in+ 0.504*g
in+ 0.98*b
in, wherein r
in, g
in, b
infor the original RGB value of current pixel point;
Step 4: according to Y
inthe interval M coefficient sets of calculating of brightness step at place, M coefficient sets comprises three part M
1, M
2, M
3: computing method are:
Y
in<100,M
1＝0.4,M
2＝0.2,M
3＝0.1；
100≤Y
in≤200,M
1＝0.2,M
2＝0.1,M
3＝0.05；
Y
in>200,M
1＝0.1,M
2＝0.05,M
3＝0.025；
Step 5: according to Y
inand Y
1difference calculate brightness decay coefficient L
d1;
L
d1＝(Y
in-Y
1)/Y
in；
Step 6: according to brightness decay coefficient L
d1adjust M coefficient sets:
M
1＝M
1(1-L
d1)；
M
2＝M
2(1-L
d1)；
M
3＝M
3(1-L
d1)；
Step 7: while being less than variation width variationWidth as this pixel and the aberration of selected typical application, going to step (8), otherwise go to step 9;
Step 8: according to calculating the M coefficient sets obtaining, start paleization and move look process:
The look that moves of current pixel point operates rear output component r
out, g
out, b
outprovided by following formula;
r
out＝abs(r
in+(M
1*r
in))；
g
out＝abs(g
in+(M
2*g
in))；
b
out＝abs(b
in+(M
3*b
in))；
In formula, abs function is the operation that takes absolute value;
Step 9: without operation.
2. the cartoon character on mobile phone types of facial makeup in Beijing operas creative method based on brightening tender skin according to claim 1, is characterized in that, variation width variationWidth span is 1～100.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210261327.5A CN102819857B (en) | 2012-07-26 | 2012-07-26 | Method for creating cartoon character face in mobile phone based on whitening and skin tendering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210261327.5A CN102819857B (en) | 2012-07-26 | 2012-07-26 | Method for creating cartoon character face in mobile phone based on whitening and skin tendering |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102819857A CN102819857A (en) | 2012-12-12 |
| CN102819857B true CN102819857B (en) | 2014-09-24 |
Family
ID=47303960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210261327.5A Active CN102819857B (en) | 2012-07-26 | 2012-07-26 | Method for creating cartoon character face in mobile phone based on whitening and skin tendering |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102819857B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1777913A (en) * | 2003-03-20 | 2006-05-24 | 欧姆龙株式会社 | Image processing device |
| CN102027505A (en) * | 2008-07-30 | 2011-04-20 | 泰塞拉技术爱尔兰公司 | Automatic face and skin beautification using face detection |
| CN102521867A (en) * | 2011-12-16 | 2012-06-27 | 拓维信息系统股份有限公司 | Mobile phone anime character and background creation method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004147288A (en) * | 2002-10-25 | 2004-05-20 | Reallusion Inc | Facial image correction method |
| US8849029B2 (en) * | 2010-02-26 | 2014-09-30 | Nec Corporation | Image processing method, image processing device and program |
-
2012
- 2012-07-26 CN CN201210261327.5A patent/CN102819857B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1777913A (en) * | 2003-03-20 | 2006-05-24 | 欧姆龙株式会社 | Image processing device |
| CN102027505A (en) * | 2008-07-30 | 2011-04-20 | 泰塞拉技术爱尔兰公司 | Automatic face and skin beautification using face detection |
| CN102521867A (en) * | 2011-12-16 | 2012-06-27 | 拓维信息系统股份有限公司 | Mobile phone anime character and background creation method |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2004-147288A 2004.05.20 |
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