CN110349202A - A kind of hair styling method based on shape of face analysis - Google Patents

A kind of hair styling method based on shape of face analysis Download PDF

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Publication number
CN110349202A
CN110349202A CN201910605576.3A CN201910605576A CN110349202A CN 110349202 A CN110349202 A CN 110349202A CN 201910605576 A CN201910605576 A CN 201910605576A CN 110349202 A CN110349202 A CN 110349202A
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face
user
shape
line
image
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CN201910605576.3A
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CN110349202B (en
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灏规捣
尹海
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Hefei Jumei Network Technology Co Ltd
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Hefei Jumei Network Technology Co Ltd
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    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D44/00—Other cosmetic or toiletry articles, e.g. for hairdressers' rooms
    • A45D44/005—Other cosmetic or toiletry articles, e.g. for hairdressers' rooms for selecting or displaying personal cosmetic colours or hairstyle
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/50—Information retrieval; Database structures therefor; File system structures therefor of still image data
    • G06F16/58—Retrieval characterised by using metadata, e.g. metadata not derived from the content or metadata generated manually
    • G06F16/583—Retrieval characterised by using metadata, e.g. metadata not derived from the content or metadata generated manually using metadata automatically derived from the content
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/60—Analysis of geometric attributes
    • G06T7/62—Analysis of geometric attributes of area, perimeter, diameter or volume
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/60—Analysis of geometric attributes
    • G06T7/68—Analysis of geometric attributes of symmetry
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
    • G06V40/16—Human faces, e.g. facial parts, sketches or expressions
    • G06V40/168—Feature extraction; Face representation
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/30—Subject of image; Context of image processing
    • G06T2207/30196—Human being; Person
    • G06T2207/30201—Face

Abstract

The present invention relates to a kind of hair styling methods based on shape of face analysis, belong to hair style design technical field, this method is by analyzing face type, and show that everyone shape of face characteristic value screens the immediate several hair style figures of and face characteristic value identical as user's shape of face by the shape of face characteristic value with the picture in shape of face library, form pictures, it is selected for user, compare the prior art, more targetedly；The present invention is used as weight in the accounting of entire shape of face using upper front yard, Zhongting, lower front yard for the first time, quantifies shape of face by analyzing forehead feature, cheek feature and lower jaw feature, overcomes sense organ and judge bring deviation；The hair style figure screened through the invention is arranged in pairs or groups with user's face, and matching degree is higher, and arranging effect is preferable.

Description

A kind of hair styling method based on shape of face analysis
Technical field
The invention belongs to hair style design technical fields, and in particular to a kind of hair styling method based on shape of face analysis.
Background technique
Hair style design be it is a kind of using hair lengths, angle, collocation of colour and be designed people hobby and habit institute into A capable comprehensive art.Currently, the work of hair style design is mainly completed by stylist, the hobby and habit of different stylist Used difference, the designed hair style come out is also different, if the hobby and habit of stylist are inconsistent with the habit of user, The hair style so designed is obviously unable to satisfy the needs of user.
Currently, user carries out intuitive judgment and choosing often by atlas is checked when selection changes the hair style of oneself It selects, but is all model's shape of face on atlas, these hair styles are all very beautiful on atlas, but only can only explain these hair styles and be suitble to atlas On model, rather than oneself.This is also the effect cut after why user selected the hair style oneself liked by picture album It is often unsatisfactory, it can't steer clear of the vicious circle of " haircut three days are ugly ".
In addition, some hairdressers can carry out hair style design, such case according to atlas combination user self-condition Under the final effect that cuts can obtain the favorable comment of user under normal circumstances, but designer is in the design concept to introduce oneself When, user be it is ignorant, can not imagine that final effect is how, unsuspectingly cannot give the hair of oneself to hair style completely Teacher.
The problem of for above-mentioned hair style design, in order to allow user can be intuitive to the hair style that oneself will be trimmed Solution, has had many hair style design softwares to be developed, these softwares all have respective hair style library, and these can be sent out Type figure and facial image are arranged in pairs or groups, but since the difference of face shape is big, if blindly the two is arranged in pairs or groups, matching degree is not Height causes arranging effect poor.
Summary of the invention
The object of the invention is that providing a kind of hair style design side based on shape of face analysis to solve the above-mentioned problems Method.
The present invention through the following technical solutions to achieve the above objectives:
A kind of hair styling method based on shape of face analysis, comprising the following steps:
User's face image of forehead is exposed in the acquisition of the front step S1., and judges user's shape of face；
Step S2. carries out Facial Feature Analysis to user's face image, calculates face characteristic value；
Step S3. is screened from pre-set hair style library according to face characteristic value, and selection is identical as user's shape of face, and The immediate several hair style figures of face characteristic value form pictures, select for user.
It is further preferred that the step S2's carries out Facial Feature Analysis to user's face image, face characteristic is calculated The method of value, step include:
Step S2.1. extracts the face in user's face image, using people's middle line at middle part positive above upper lip as the Y-axis of image Baseline is corrected the face in present image, keeps left and right face symmetrical, obtains face image, carries out profile to face image Identification, and the face mask line that will identify that is shown in face image；
Step S2.2. extracts the characteristic point of face image, the midpoint a including left and right place between the eyebrows point line1, with a1For the X of basic point The intersection point a of axial line and face mask line2、a3, the upper extreme point b of people's middle line1, with b1For the X axis line and face mask line of basic point Intersection point b2、b3, a1With b1The midpoint c of line1, with c1For the X axis line of basic point and the intersection point c of face mask line2、c3And face The intersection point d of contouring line and Y-axis baseline1、d2；Wherein, with b1、c1Face image is from top to bottom divided into for the X axis line of basic point Upper front yard, Zhongting and lower front yard；
Front yard, Zhongting, lower front yard area S in step S2.3. calculating1、S2、S3And its accounting ω in entire shape of facex:
Step S2.4. calculates face characteristic parameter value, including forehead characteristic ginseng value Z1, cheek characteristic ginseng value Z2, lower jaw Characteristic ginseng value Z3。
The above front yard step S2.5., Zhongting, lower front yard entire shape of face accounting ωxFor weight, in conjunction with face characteristic parameter value Calculate face characteristic value W=ω1Z1+ω2Z2+ω3Z3。
It is further preferred that forehead characteristic parameter Z1, cheek characteristic parameter Z2, lower jaw characteristic parameter Z3, meet:
In formula, L indicates length.
It is further preferred that the data information in the pre-set hair style library of the step S3 includes: front acquisition dew The shape of face and its face feature value of the user of forehead or model's face image and its hair style figure and the user or model out.
It is further preferred that the step S3 further includes that user's face image and the pictures image of selection are carried out face With the integration of hair style, the hair style atlas for being directed to the user is formed, is selected for user.
The beneficial effects of the present invention are:
1) this method is by analyzing face type, and obtains everyone shape of face characteristic value, by in shape of face library Picture shape of face characteristic value, screening with the immediate hair style figure of user's shape of face for user select, more targetedly；
2) present invention for the first time use upper front yard, Zhongting, lower front yard entire shape of face accounting be used as weight, pass through analysis forehead Feature, cheek feature and lower jaw feature quantify shape of face, overcome sense organ and judge bring deviation；
3) when the hair style atlas and user face screened through the invention is arranged in pairs or groups, matching degree is high, and arranging effect is preferable；
4) by the way that the hair style of user is included in hair style library, hair style library data can be adaptively updated, compare only for The hair style library of the standards shape of face such as model building, user can see more unmodified true pictures, compare and see model's bat The atlas taken the photograph more has role to bring sense into.
Detailed description of the invention
Fig. 1 is design method flow chart of the invention；
Fig. 2 is features of human face images schematic diagram
Specific embodiment
The application is described in further detail with reference to the accompanying drawing, it is necessary to it is indicated herein to be, implement in detail below Mode is served only for that the application is further detailed, and should not be understood as the limitation to the application protection scope, the field Technical staff can make some nonessential modifications and adaptations to the application according to above-mentioned application content.
Embodiment 1
A kind of intelligent hair styling method based on shape of face analysis is present embodiments provided, as shown in Figure 1, including following step It is rapid:
User's face image of forehead is exposed in the acquisition of the front step S1., and judges user's shape of face；
Step S2. carries out Facial Feature Analysis to user's face image, calculates face characteristic value, comprising:
Step S2.1. extracts the face in user's face image, using people's middle line at middle part positive above upper lip as the Y-axis of image Baseline is corrected the face in present image, keeps left and right face symmetrical, obtains face image, carries out profile to face image Identification, and the face mask line that will identify that is shown in face image；In the case where identifying not accurate enough, can carry out manually Adjustment；
Step S2.2. extracts the characteristic point of face image, as shown in Fig. 2, including the midpoint a of left and right place between the eyebrows point line1, with a1For the X axis line of basic point and the intersection point a of face mask line2、a3, the upper extreme point b of people's middle line1, with b1For basic point X axis line with The intersection point b of face mask line2、b3, a1With b1The midpoint c of line1, with c1For the X axis line of basic point and the intersection point of face mask line c2、c3And the intersection point d of face mask line and Y-axis baseline1、d2；Wherein, with b1、c1For basic point X axis line by face image From top to bottom it is divided into front yard, Zhongting and lower front yard；
Front yard, Zhongting, lower front yard area S in step S2.3. calculating1、S2、S3And its accounting ω in entire shape of facex:
Step S2.4. calculates face characteristic parameter value, comprising:
(1) forehead characteristic ginseng value Z1, meet:
Forehead characteristic parameter reflects the length and forehead width that forehead accounts for entire face, Z1Value is bigger, illustrates forehead for point Elongated, Z1It is worth smaller, illustrates forehead for wide short；
(2) cheek characteristic ginseng value Z2, meet:
Cheek characteristic parameter reflects the width of cheek, Z2Value is bigger, illustrates for wide type cheek, Z2It is worth smaller, illustrates for point Type cheek；
(3) lower jaw characteristic ginseng value Z3, meet:
Lower jaw characteristic parameter reflects the sharp degree of lower jaw, Z3Value is bigger, illustrates that lower jaw is long tip, Z3Be worth it is smaller, under explanation Jaw is short round；
In formula, L indicates length.
Step S2.5. calculates face characteristic value W:
W=ω1Z1+ω2Z2+ω3Z3
Step S3. is screened from pre-set hair style library according to face characteristic value, selection and user's shape of face phase Together, and the immediate several hair style figures of face characteristic value, pictures are formed；The pre-set hair style library be comprising user or The hair style figure and the user of the face image for just showing forehead of model and the user or model or the shape of face and its face of model Portion's characteristic value；The integration that user's face image and the pictures image of selection are finally carried out to face and hair style is formed to be directed to and is somebody's turn to do The hair style atlas of user is selected for user.
Step S4. stylist trims according to the hair style that user selects, sizing；If the hair style user having been formed is satisfied Degree is high, then can with the consent of the user, by the face image and its correlation of the user obtained using step S1,2 acquisitions Hair style figure after parameter (including shape of face and face feature value), and sizing is brought into the hair style library of step S3, for other Family is with reference to selection.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously Limitations on the scope of the patent of the present invention therefore cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to guarantor of the invention Protect range.

Claims (5)

1. a kind of hair styling method based on shape of face analysis, which comprises the following steps:
User's face image of forehead is exposed in the acquisition of the front step S1., and judges user's shape of face；
Step S2. carries out Facial Feature Analysis to user's face image, calculates face characteristic value；
Step S3. is screened from pre-set hair style library according to face characteristic value, and selection is identical as user's shape of face, and face The immediate several hair style figures of characteristic value form pictures, select for user.
2. a kind of hair styling method based on shape of face analysis according to claim 1, which is characterized in that the step S2 Facial Feature Analysis is carried out to user's face image, the method for calculating face characteristic value, step includes:
Step S2.1. extracts the face in user's face image, using people's middle line at middle part positive above upper lip as the Y-axis base of image Line is corrected the face in present image, keeps left and right face symmetrical, obtains face image, carries out profile knowledge to face image Not, and the face mask line that will identify that is shown in face image；
Step S2.2. extracts the characteristic point of face image, the midpoint a including left and right place between the eyebrows point line1, with a1For the X axis of basic point The intersection point a of line and face mask line2、a3, the upper extreme point b of people's middle line1, with b1For the friendship of the X axis line and face mask line of basic point Point b2、b3, a1With b1The midpoint c of line1, with c1For the X axis line of basic point and the intersection point c of face mask line2、c3And face's wheel The intersection point d of profile and Y-axis baseline1、d2；Wherein, with b1、c1Face image is from top to bottom divided into for the X axis line of basic point Front yard, Zhongting and lower front yard；
Front yard, Zhongting, lower front yard area S in step S2.3. calculating1、S2、S3And its accounting ω in entire shape of facex:
Step S2.4. calculates face characteristic parameter value, including forehead characteristic ginseng value Z1, cheek characteristic ginseng value Z2, lower jaw feature Parameter value Z3。
The above front yard step S2.5., Zhongting, lower front yard entire shape of face accounting ωxFor weight, in conjunction with face characteristic parameter value calculation Face characteristic value W=ω1Z1+ω2Z2+ω3Z3。
3. a kind of hair styling method based on shape of face analysis according to claim 2, which is characterized in that forehead feature ginseng Number Z1, cheek characteristic parameter Z2, lower jaw characteristic parameter Z3, meet:
In formula, L indicates length.
4. a kind of hair styling method based on shape of face analysis according to claim 1, which is characterized in that the step S3 Pre-set hair style library in data information include: the face image for just showing forehead and the user of user or model or The shape of face and its face feature value of the hair style figure of model and the user or model.
5. a kind of hair styling method based on shape of face analysis according to claim 1, which is characterized in that the step S3 Further include the integration that user's face image and the pictures image of selection are carried out to face and hair style, forms the hair for being directed to the user Type atlas is selected for user.
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