CN111768334A - Human face cartoon image design method - Google Patents
Human face cartoon image design method Download PDFInfo
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- CN111768334A CN111768334A CN202010612498.2A CN202010612498A CN111768334A CN 111768334 A CN111768334 A CN 111768334A CN 202010612498 A CN202010612498 A CN 202010612498A CN 111768334 A CN111768334 A CN 111768334A
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- 238000000034 method Methods 0.000 title claims abstract description 32
- 230000001815 facial effect Effects 0.000 claims abstract description 53
- 210000001508 eye Anatomy 0.000 claims abstract description 28
- 210000001331 nose Anatomy 0.000 claims description 25
- 210000004709 eyebrow Anatomy 0.000 claims description 20
- 210000000887 face Anatomy 0.000 claims description 15
- 210000005069 ears Anatomy 0.000 claims description 10
- 230000000694 effects Effects 0.000 claims description 10
- 230000008859 change Effects 0.000 claims description 9
- 210000005252 bulbus oculi Anatomy 0.000 claims description 6
- 238000005516 engineering process Methods 0.000 claims description 6
- 241000388002 Agonus cataphractus Species 0.000 claims description 3
- 235000011299 Brassica oleracea var botrytis Nutrition 0.000 claims description 3
- 240000003259 Brassica oleracea var. botrytis Species 0.000 claims description 3
- 241001481828 Glyptocephalus cynoglossus Species 0.000 claims description 3
- 238000004458 analytical method Methods 0.000 claims description 3
- 210000000744 eyelid Anatomy 0.000 claims description 3
- 230000008921 facial expression Effects 0.000 claims description 3
- 239000002932 luster Substances 0.000 claims description 3
- 210000001747 pupil Anatomy 0.000 claims description 3
- 238000009877 rendering Methods 0.000 claims description 3
- 230000000007 visual effect Effects 0.000 claims description 3
- 210000000214 mouth Anatomy 0.000 claims description 2
- 239000000284 extract Substances 0.000 abstract description 4
- 238000000605 extraction Methods 0.000 abstract description 2
- 238000004904 shortening Methods 0.000 abstract 1
- 230000000875 corresponding effect Effects 0.000 description 7
- 230000004048 modification Effects 0.000 description 6
- 238000012986 modification Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 210000000697 sensory organ Anatomy 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T3/00—Geometric image transformations in the plane of the image
- G06T3/04—Context-preserving transformations, e.g. by using an importance map
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Abstract
The invention discloses a design method of cartoon image of human face, aiming at the problems of complexity and complexity of the traditional design method and hard human face image design, utilizing computer equipment to extract the information of human face image and photo facial features and the like input by a mobile terminal, respectively establishing facial databases of facial features of cartoon images of men and women, respectively retrieving the cartoon image information of a target human face, then extracting the human face of the target cartoon image from a comparison database, respectively cartoon image facial database of facial features and facial features according to sex, only needing to compare and extract in the corresponding database during design, shortening the time of comparison and extraction of the large database, being accurate and rapid, making corresponding fine adjustment on the positions of eyes, nose and mouth and the like according to the expression of the human face of the target cartoon image, fully utilizing the coordination of the eyes, nose, mouth and hairstyle to make the expression of the human face of the target cartoon image more vivid, the problems of rigidity, engraving and hardness of the cartoon image lines in the traditional design are avoided.
Description
Technical Field
The invention relates to the technical field of cartoon design, in particular to a human face cartoon image design method.
Background
Animation production is an emerging industry in our country, in which the design and application of human face cartoonization is popular. At present, the cartoon design of the human face usually includes that after human face features are extracted, human face organ features are reserved, human face sketch portrait picture initial samples are obtained, and then the initial samples are processed to obtain the human face cartoon.
However, the existing human face cartoon image design method is complicated and complex, the design effect is poor, the difference of the generated human face cartoon is larger than that of the collection of photos or videos, and lines are stiff, carved and stiff.
Therefore, a human face cartoon image design method is provided.
Disclosure of Invention
The invention aims to provide a design method of a human face cartoon image, which utilizes computer equipment to extract information such as human face images and photo facial features input by a mobile terminal, respectively establishes facial databases of facial features of male and female cartoon images, retrieves the cartoon image information of a target human face, compares the cartoon image information of the target human face with the databases to extract the human face of the target cartoon image, and carries out facial modification and special effect design after seeking the opinions of a target client group, thereby solving the problems proposed in the background.
In order to achieve the purpose, the invention provides the following technical scheme: a design method of cartoon images on human faces adopts a design device and comprises the following steps:
s1: inputting a face image and a photo to computer equipment by using a mobile terminal;
s2: extracting facial features in a face image and a photo input by the mobile terminal by using computer equipment:
s3: respectively establishing facial databases of facial features of cartoon images of men and women by using the facial data extracted in the step S2;
s4: after the cartoon image of the target face is determined, retrieving the face information and the face characteristics of the cartoon image of the target face;
s5: inputting the retrieved target cartoon image face information and facial features in S4 on a computer device, comparing the face information with the facial database of facial styles of the male and female cartoon images in S3, and extracting a target cartoon image face:
s6: sending questionnaire surveys to mobile terminals of target customers and consumers by using computer equipment, inquiring about the opinions and opinions of the target cartoon image human faces, and slightly modifying the target cartoon image human faces extracted in the step S5 according to the more uniform opinions fed back by the questionnaire surveys;
s7: rendering and special effect processing are carried out on the target cartoon image face modified in the S6:
s8: matching the target cartoon image human face subjected to special effect processing in the S7 with a proper hairstyle in a hairstyle library established in computer equipment;
s9: and outputting the finally determined cartoon image human face.
Further, the step S2 further includes the following steps:
s201: extracting facial features and proportion information in a face image and a photo input by the mobile terminal by utilizing a portrait analysis technology;
s202: facial image and facial feature and proportion information in the pictures input by the mobile terminal are extracted by utilizing an image graphic processing technology.
Further, the facial features in step S201 at least include features of eyebrows, eyes, nose, mouth, chin and ears, and are analyzed and processed.
Further, the step S6 further includes the following steps:
s601: changing the shape structures of the eyes and the eyebrows of the target cartoon character face extracted in the step S5 and the distance between the eyes and the eyebrows;
s602: changing the shape structure of the nose and the ears of the target cartoon image face extracted in the S5:
s603: and changing the shape and structure of the mouth and the mouth shape of the target cartoon character human face extracted in the S5.
Further, the shape structures of the eyes and eyebrows of the cartoon character human face and the change rule of the distance between the eyes and eyebrows in the step S601 are as follows:
a1: the shape and luster of eyes, even the size of pupils, are adjusted according to changes in facial expression, the eyeball shrinks during fear and fright, the upper eyelid is semi-closed during fatigue, and the highlight part of the eyeball enlarges if loss occurs.
B1: the eyebrows of a character are represented by a relatively simple pen touch, and the eyebrow wall of a male appears to be relatively cluttered and closer to the eyes of a female.
Further, the change rule of the shape structure of the nose and the ear of the cartoon character human face in the step S602 is as follows:
a2: the characters and characteristics of characters are strengthened by utilizing the special visual position of the nose and purposely exaggerating and deforming, the eagle hook nose, the vinasse nose and the cauliflower nose represent the images of the old witch and the thieves, the upright and stiff nose represents the images of the hero and the warrior, and the small and erect nose trend represents the image of the boys.
B2: ears fall into two broad categories: one is the ear with the large pinna protruding, and the other is the ear which is very small and not obvious.
Further, the shape and structure change rule of the mouth and the mouth shape of the cartoon character human face in the step S603 is as follows: the mouth shape can make various different and subtle expression changes, the expression to the expression is extremely strong, the male mouth shape usually has no thicker lips, the female lips are thicker than the male lips, and the mouth with the weak character is far away from the nose.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention provides a design method of a human face cartoon image, which is characterized in that information such as a human face image and photo facial features input by a mobile terminal is extracted by computer equipment, a man and woman cartoon image facial database is respectively established, a target cartoon image human face is extracted by comparing the database after target human face cartoon image information is retrieved, the cartoon image facial database is respectively extracted according to the sex of men and women, the design only needs to be compared and extracted in the corresponding database, the time for comparing and extracting the large database is shortened, and the design is accurate and rapid.
2. The invention provides a design method of a human face cartoon image, which utilizes computer equipment to send questionnaire survey to mobile terminals of target customers and consumers, inquires about the opinions and opinions of the target cartoon image human face, finely modifies the target cartoon image human face according to the more uniform opinions fed back by the questionnaire survey, carries out customized design aiming at the aesthetic opinions of the masses, and plans in advance to seek for precise design to achieve ideal design effect.
3. According to the design method of the cartoon image of the face, the eyes, the nose, the mouth and the like are correspondingly and finely adjusted according to the expression of the face of the target cartoon image, the coordination of the eyes, the nose, the mouth and the hairstyle is fully utilized, the expression of the face of the target cartoon image is more vivid, and the problems of line stiffness, carving and hardness of the traditional design cartoon image are solved.
Drawings
FIG. 1 is a general design flow diagram of the present invention;
FIG. 2 is a flowchart illustrating the facial feature extraction process of step S2 according to the present invention;
FIG. 3 is a flowchart illustrating a cartoon character human face modification process in step S6 according to the present invention;
FIG. 4 is a schematic diagram of an eye modification and corresponding effects of the present invention;
FIG. 5 is a schematic diagram of a nose modification and corresponding effect of the present invention;
fig. 6 is a schematic view of a mouth and mouth shape modification and corresponding effects of the present invention.
In the figure: 1. a mobile terminal; 2. a computer device.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
Referring to fig. 1-2, a method for designing cartoon images on human faces, which uses a design device, includes the following steps:
s1: the mobile terminal 1 is used to input a face image and a photograph to the computer device 2.
S2: the facial features in the face image and the photo input by the mobile terminal 1 are extracted by the computer device 2.
S3: and (4) establishing facial databases of the facial styles of the cartoon characters of the male and female cartoon images by using the facial data extracted in the S2, wherein the facial databases are only required to be compared and extracted from the corresponding databases during design, so that the time for comparing and extracting the large databases is shortened, and the method is accurate and rapid.
S4: and after the cartoon image of the target face is determined, retrieving the face information and the face characteristics of the cartoon image of the target face.
S5: the target cartoon character face information and the facial features retrieved in the S4 are input on the computer device 2, and compared with the facial database of facial styles of the male and female cartoon characters in the S3, and the target cartoon character face is extracted.
S6: the computer device 2 is used for sending questionnaire surveys to the mobile terminals 1 of target customers and consumers, inquiring about the opinions and opinions of the target cartoon image faces, finely modifying the target cartoon image faces extracted in the S5 according to the uniform opinions fed back by the questionnaire surveys, customizing and designing the mass aesthetic opinions, and planning in advance to seek precise design to achieve ideal design effects.
S7: and rendering and specially processing the modified target cartoon image human face in the S6.
S8: and matching the target cartoon image human face subjected to special effect processing in the S7 with a proper hairstyle in a hairstyle library established in the computer equipment 2.
S9: and outputting the finally determined cartoon image human face.
The step S2 further includes the steps of:
s201: facial features and proportion information in the face image and the photo input by the mobile terminal 1 are extracted by utilizing a portrait analysis technology, wherein the facial features at least comprise the features of eyebrows, eyes, a nose, a mouth, a chin and ears, and are analyzed and processed.
S202: facial image and facial contour characteristics and proportion information in the pictures input by the mobile terminal 1 are extracted by utilizing an image graphic processing technology.
Example two
Referring to fig. 3-6, a method for designing cartoon images on human faces, step S6, further includes the following steps:
s601: the shape structures of the eyes and the eyebrows of the target cartoon character face extracted in S5 and the distances between them are changed.
S602: the shape structure of the nose and the ears of the target cartoon character face extracted in the S5 is changed.
S603: the shape structures of the mouth and the mouth shape of the target cartoon animation image face extracted in the S5 are changed, the cooperation of eyes, a nose, the mouth and a hairstyle is fully utilized, the expression of the target cartoon animation image face is more vivid, and the problems of line stiffness, carving and stiffness of the cartoon animation image in the traditional design are solved.
The shape structure of the eyes and eyebrows of the cartoon character face and the change rule of the distance between the eyes and eyebrows in step S601 are as follows:
a1: the shape and luster of eyes, even the size of pupils, are adjusted according to changes in facial expression, the eyeball shrinks during fear and fright, the upper eyelid is semi-closed during fatigue, and the highlight part of the eyeball enlarges if loss occurs.
B1: the eyebrows of a character are represented by a relatively simple pen touch, and the eyebrow wall of a male appears to be relatively cluttered and closer to the eyes of a female.
In step S602, the rules of the change of the shape and structure of the nose and the ears of the cartoon character face are as follows:
a2: the characters and characteristics of characters are strengthened by utilizing the special visual position of the nose and purposely exaggerating and deforming, the eagle hook nose, the vinasse nose and the cauliflower nose represent the images of the old witch and the thieves, the upright and stiff nose represents the images of the hero and the warrior, and the small and erect nose trend represents the image of the boys.
B2: ears fall into two broad categories: one is the ear with the large pinna protruding, and the other is the ear which is very small and not obvious.
In step S603, the shape and structure change rule of the mouth and mouth shape of the cartoon character face is as follows: the mouth shape can make various different and subtle expression changes, the expression to the expression is extremely strong, the male mouth shape usually has no thicker lips, the female lips are thicker than the male lips, and the mouth with the weak character is far away from the nose.
In summary, the following steps: the invention provides a design method of cartoon images of human faces, which utilizes computer equipment 2 to extract information such as human face images and photo facial features input by a mobile terminal 1, respectively establishes facial databases of facial features of cartoon images of men and women, retrieves cartoon image information of a target human face and then extracts the human face of the target cartoon image from a comparison database, respectively extracts facial databases of facial features of cartoon images of five sense organs according to sex of men and women, only needs to compare and extract in the corresponding databases during design, reduces the time for comparing and extracting the large databases, and is accurate and rapid; sending questionnaire survey to the mobile terminals 1 of target customers and consumers by using the computer equipment 2, inquiring the opinions and opinions of the target cartoon image human faces, slightly modifying the target cartoon image human faces according to the more uniform opinions fed back by the questionnaire survey, customizing and designing the popular aesthetic opinions, and planning in advance to seek precise design to achieve ideal design effect; according to the expression of the target cartoon image face, corresponding fine adjustment is carried out on the eyes, the nose, the mouth and other parts, the cooperation of the eyes, the nose, the mouth and the hairstyle is fully utilized, the expression of the target cartoon image face is more vivid, and the problems of rigidity, carving and stiffness of lines of the cartoon image in the traditional design are solved.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A design method of cartoon images on human faces adopts a design device and comprises the following steps:
s1: inputting a face image and a photo to computer equipment (2) by using a mobile terminal (1);
s2: extracting facial features in a face image and a photo input by the mobile terminal (1) by using the computer equipment (2):
s3: respectively establishing facial databases of facial features of cartoon images of men and women by using the facial data extracted in the step S2;
s4: after the cartoon image of the target face is determined, retrieving the face information and the face characteristics of the cartoon image of the target face;
s5: inputting the retrieved target cartoon image face information and facial features in S4 on the computer equipment (2), comparing the information with the facial database of facial styles of the male and female cartoon images in S3, and extracting a target cartoon image face:
s6: sending questionnaire survey to the mobile terminals (1) of target customers and consumers by using the computer equipment (2), inquiring the opinions and opinions of the target cartoon image human faces, and finely modifying the target cartoon image human faces extracted in the step S5 according to the more uniform opinions fed back by the questionnaire survey;
s7: rendering and special effect processing are carried out on the target cartoon image face modified in the S6:
s8: matching the target cartoon image human face processed with the special effect in the S7 with a proper hairstyle in a hairstyle library established in the computer equipment (2);
s9: and outputting the finally determined cartoon image human face.
2. The method for designing cartoon characters on human faces according to claim 1, wherein: the step S2 further includes the following steps:
s201: extracting facial features and proportion information in a face image and a photo input by the mobile terminal (1) by utilizing a portrait analysis technology;
s202: facial image and facial contour characteristics and proportion information in the pictures input by the mobile terminal (1) are extracted by utilizing an image graphic processing technology.
3. The method as claimed in claim 2, wherein the method comprises the following steps: the facial features in step S201 at least include features of eyebrows, eyes, nose, mouth, chin, and ears, and are analyzed.
4. The method for designing cartoon characters on human faces according to claim 1, wherein: the step S6 further includes the steps of:
s601: changing the shape structures of the eyes and the eyebrows of the target cartoon character face extracted in the step S5 and the distance between the eyes and the eyebrows;
s602: changing the shape structure of the nose and the ears of the target cartoon image face extracted in the S5:
s603: and changing the shape and structure of the mouth and the mouth shape of the target cartoon character human face extracted in the S5.
5. The method as claimed in claim 4, wherein the method comprises the following steps: the shape structure of the eyes and eyebrows of the cartoon character face and the change rule of the distance between the eyes and eyebrows in the step S601 are as follows:
a1: adjusting the shape and luster of eyes according to the change of facial expression, even the size of pupils, eyeball shrinkage during fear and fright, upper eyelid semi-closure during fatigue, and highlight part of eyeball during loss of loss;
b1: the eyebrows of a character are represented by a relatively simple pen touch, and the eyebrow wall of a male appears to be relatively cluttered and closer to the eyes of a female.
6. The method as claimed in claim 4, wherein the method comprises the following steps: in the step S602, the rule of changing the shape and structure of the nose and the ear of the cartoon character face is as follows:
a2: the characters and characteristics of the characters are strengthened by purposefully exaggerating and deforming by utilizing the special visual position of the nose, the eagle hook nose, the vinasse nose and the cauliflower nose represent the images of the old witch and the thieves, the nose is upright and stiff and represents the positive images of hero and warrior, and the nose is small and has the tendency of being upright and represents the image of boys;
b2: ears fall into two broad categories: one is the ear with the large pinna protruding, and the other is the ear which is very small and not obvious.
7. The method as claimed in claim 4, wherein the method comprises the following steps: in the step S603, the shape and structure change rule of the mouth and the mouth shape of the cartoon image human face is as follows: the mouth shape can make various different and subtle expression changes, the expression to the expression is extremely strong, the male mouth shape usually has no thicker lips, the female lips are thicker than the male lips, and the mouth with the weak character is far away from the nose.
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| CN202010612498.2A CN111768334A (en) | 2020-06-30 | 2020-06-30 | Human face cartoon image design method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113793256A (en) * | 2021-09-10 | 2021-12-14 | 未鲲(上海)科技服务有限公司 | Animation character generation method, device, equipment and medium based on user label |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113793256A (en) * | 2021-09-10 | 2021-12-14 | 未鲲(上海)科技服务有限公司 | Animation character generation method, device, equipment and medium based on user label |
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Application publication date: 20201013 |