CN106503625B - A kind of method and mobile terminal detecting hair distribution situation - Google Patents

A kind of method and mobile terminal detecting hair distribution situation Download PDF

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Publication number
CN106503625B
CN106503625B CN201610862175.2A CN201610862175A CN106503625B CN 106503625 B CN106503625 B CN 106503625B CN 201610862175 A CN201610862175 A CN 201610862175A CN 106503625 B CN106503625 B CN 106503625B
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hair
area
distribution situation
subregion
detection
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CN106503625A (en
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郝鹏飞
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Vivo Software Technology Co Ltd
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Vivo Mobile Communication Co Ltd
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    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06VIMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/10Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
    • G06V40/16Human faces, e.g. facial parts, sketches or expressions
    • G06V40/168Feature extraction; Face representation
    • G06V40/171Local features and components; Facial parts ; Occluding parts, e.g. glasses; Geometrical relationships

Abstract

The invention discloses a kind of method and mobile terminal for detecting hair distribution situation, this method is applied to the mobile terminal with camera, this method comprises: obtaining the preview image of camera acquisition;Face datection is carried out on preview image, obtains human face region;Face Detection is carried out in human face region, obtains the hair zones in area of skin color and human face region in addition to area of skin color;The hair in preview image is detected relative to area of skin color and/or the distribution situation of hair zones, and when distribution situation meets preset condition, shows user reminding information.The present invention reminds user when the distribution situation of hair meets preset condition, so that user is in time adjusted hair distribution situation, keeps the effect of the photo of shooting ideal, and user is avoided to need to repeat to take pictures.

Description

A kind of method and mobile terminal detecting hair distribution situation
Technical field
The present invention relates to detection technique fields, whole more particularly to a kind of method for detecting hair distribution situation and movement End.
Background technique
As mobile terminal camera function is stronger and stronger, the frequency of use of the camera function of mobile terminal is higher and higher. Mobile terminal can carry out U.S. face processing to photo when shooting photo.But the processing of the U.S. face of the prior art is generally based on skin The U.S. face of color, can only improve the imaging effect of face.And during actually taking pictures, in addition to human face region, the hair state of people Also the effect that will affect photo, when distribution of the hair in photo unsightly when, can make shooting photo it is undesirable, cause to use Family needs to repeat to take pictures.
Summary of the invention
The embodiment of the present invention provides a kind of method for detecting hair distribution situation, to solve in the prior art due to hair point Cloth and cause user to need to repeat the problem of taking pictures.
The embodiment of the present invention provides a kind of mobile terminal, to solve to cause user to need since hair is distributed in the prior art Repeat the problem of taking pictures.
In a first aspect, a kind of method for detecting hair distribution situation is provided, applied to the mobile terminal with camera, packet It includes: obtaining the preview image of the camera acquisition;Face datection is carried out on the preview image, obtains human face region;In Face Detection is carried out in the human face region, is obtained in area of skin color and the human face region in addition to the area of skin color Hair zones;The hair in the preview image is detected relative to the area of skin color and/or the distribution feelings of the hair zones Condition, and when the distribution situation meets preset condition, show user reminding information.
Second aspect provides a kind of mobile terminal, comprising: module is obtained, for obtaining the preview of the camera acquisition Image;First detection module obtains human face region for carrying out Face datection on the preview image;Second detection module, For carrying out Face Detection in the human face region, obtain in area of skin color and the human face region except the area of skin color Except hair zones;Third detection module, for detect the hair in the preview image relative to the area of skin color and/ Or the distribution situation of the hair zones, and when the distribution situation meets preset condition, show user reminding information.
In this way, being distinguished except area of skin color and area of skin color in the embodiment of the present invention by being detected on preview image Hair zones, then detect the hair distribution situation of area of skin color and/or hair zones, so as to when distribution situation meet it is pre- If reminding user when condition, so that user is in time adjusted hair distribution situation, so that the effect of the photo of shooting is more Ideal avoids user from needing to repeat to take pictures.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below by institute in the description to the embodiment of the present invention Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention Example, for those of ordinary skill in the art, without any creative labor, can also be according to these attached drawings Obtain other attached drawings.
Fig. 1 is the flow chart of the method for the detection hair distribution situation of the embodiment of the present invention;
Fig. 2 is the schematic diagram of the detection zone of the method for the detection hair distribution situation of the embodiment of the present invention;
Fig. 3 is the flow chart of the method for the detection hair distribution situation of another embodiment of the present invention;
Fig. 4 is the structural block diagram of the mobile terminal of the embodiment of the present invention;
Fig. 5 is the structural block diagram of the mobile terminal of another embodiment of the present invention;
Fig. 6 is the structural block diagram of the mobile terminal of another embodiment of the invention;
Fig. 7 is the structural block diagram of the mobile terminal of a still further embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are some of the embodiments of the present invention, instead of all the embodiments.Based on this hair Embodiment in bright, every other implementation obtained by those of ordinary skill in the art without making creative efforts Example, shall fall within the protection scope of the present invention.
The embodiment of the invention provides a kind of methods for detecting hair distribution situation.This method is applied to camera Mobile terminal.As shown in Figure 1, the flow chart of the method for the detection hair distribution situation of the embodiment of the present invention.The embodiment The method of detection hair distribution situation specifically includes following step:
Step S101: the preview image of camera acquisition is obtained.
Step S102: Face datection is carried out on preview image, obtains human face region.
As shown in Fig. 2, the box 1 in Fig. 2 is human face region.
The detection method of the face can use method for detecting human face in the prior art, such as be modeled by head feature Etc. realizing Face datection.
Step S103: carrying out Face Detection in human face region, obtains in area of skin color and human face region except colour of skin area Hair zones except domain.
The detection method of the colour of skin can use skin color detection method in the prior art, such as pass through complexion model color The selection in space, skin color modeling realize Face Detection.As shown in Fig. 2, the box 2 in Fig. 2 is area of skin color.In general, people Area about 30% of the face region than area of skin color.
Hair zones in human face region in addition to area of skin color can be obtained by hair detection algorithm.The calculation of hair detection Method generally has following three kinds of methods: 1) based on the color development detection of color space statistics;2) hair based on probabilistic model, Gauss model Color detection;3) based on the color development detection of neural network machine study.
Step S104: detecting the hair in preview image relative to area of skin color and/or the distribution situation of hair zones, and When distribution situation meets preset condition, user reminding information is shown.
The hair distribution situation that the method for the present embodiment predominantly detects includes: whether hair blocks face, and whether hair insults Disorderly, whether hair at least partly lacks.
Remind user's hair distribution situation by display user reminding information, can convenient for user to hair distribution situation into Row adjustment.Voice prompting or text prompt can specifically be passed through.
To sum up, the method for the detection hair distribution situation of the embodiment of the present invention, is distinguished by detecting on preview image Hair zones except area of skin color and area of skin color, then the hair distribution situation of area of skin color and/or hair zones is detected, from And user can be being reminded when distribution situation meets preset condition, so that user is in time adjusted hair distribution situation, make The effect for the photo that must be shot is ideal, and user is avoided to need to repeat to take pictures.
Another embodiment of the present invention provides a kind of method for detecting hair distribution situation.This method, which is applied to have, to be taken the photograph As the mobile terminal of head.As shown in figure 3, the process of the method for the detection hair distribution situation of another embodiment of the present invention Figure.The method of the detection hair distribution situation of another embodiment specifically includes following step:
Step S301: the preview image of camera acquisition is obtained.
Step S302: Face datection is carried out on preview image, obtains human face region.
Step S303: carrying out Face Detection in human face region, obtains in area of skin color and human face region except colour of skin area Hair zones except domain.
Above-mentioned step S301~step S303 is identical as the step of previous embodiment S101~step S103, herein no longer It repeats.
Step S304: distribution situation of the hair relative to area of skin color in detection preview image.
The step detects distribution situation of the hair relative to area of skin color, is mainly used in whether detection hair blocks face The case where.
Step S305: whether judge has hair to be distributed in area of skin color in preview image is located at human eye position below.
Wherein, human eye can be determined by the method for the human eye detection of the prior art, such as be realized by human eye modeling etc. Human eye detection.
When the hair in preview image is distributed in area of skin color position below positioned at human eye, then step is carried out S306;Otherwise step S308 is carried out.
Step S306: the first prompting message of display.
Under normal circumstances, below human eye it is not no hair, if having hair below human eye, hair blocks face, meeting Influence the effect of the photo of shooting.Therefore, when hair is distributed in area of skin color position below positioned at human eye, show hair Face is blocked, then shows the first prompting message.First prompting message, which can be below human eye, has hair to block face, so as to User is reminded to can adjust hair distribution situation.If hair distribution situation is not block face without hair, then do not need to remind User, directly progress step S308.
Step S307: receiving the instruction of user, executes or abandon the behaviour of the hair distribution situation in adjustment area of skin color Make.
After having carried out the step, then carry out step S308.
Step S308: distribution situation of the hair relative to hair zones in detection preview image.
The step detects distribution situation of the hair relative to hair zones, is mainly used in the whether in disorder feelings of detection hair Condition.
Step S309: it is default to judge whether the differential seat angle between two in hair zones adjacent hair subregions is greater than first Difference.
Wherein, the area of any hair subregion in two hair subregions is less than the first preset area.The angle of hair subregion Degree is the angle mean value of all hairs in hair subregion.Differential seat angle between two hair subregions is two adjacent hair subregions Angle between difference.
Preferably, the first preset difference value is 30 °.
When the differential seat angle between two adjacent hair subregions in hair zones is greater than the first preset difference value, then walked Rapid S310;Otherwise step S312 is carried out.
Step S310: the second prompting message of display.
Second prompting message may is that the hair of hair zones is in disorder, so that user is according to the second prompting message tune Whole hair distribution situation.
Preferably, before step S308, this method include thes steps that as follows:
Step 1: hair zones are divided into top area, the first face side region and the second face side region.
As shown in Fig. 2, box 3 is top area, box 4 is the first face side region, and box 5 is the second face side region.
Hair zones are divided into three regions, are primarily due to, the angle of hair has biggish difference in three regions Not, be easy to causeing hair distribution situation is therefore in disorder error detection is divided into three regions and detects respectively, can reduce mistake to the greatest extent Inspection.It preferably, can be aobvious according to the hair distribution situation of different hair zones after hair zones are divided into above three region Show that the second prompting message, such as the second prompting message are in disorder for the hair of top area, so that user is more clearly specifically The hair at place is in disorder, to can adjust the hair distribution situation at this.
Step 2: respectively by the hair of top area, the first face side region and the second face side region according to preset rules point Area.
Wherein, the method for the hair subregion is as follows:
Step 1: establishing coordinate system in preview image.
For example, the coordinate system is using direction horizontally to the right as the positive direction of x-axis, using direction straight up as y-axis just Direction is in a counterclockwise direction angle positive direction.
It should be understood that the application is not limited thereto, which can also be other forms.
Step 2: carrying out line detection in hair zones, the angle of hair is obtained.
It is reference with the coordinate system of above-mentioned citing, the angle of hair is that the positive axis of x-axis is rotated to according to angle positive direction The angle of each hair.Because hair can be regarded as line, using the method for line detection.The method of line detection can be The Hough transformation method of image procossing.
Step 3: according to the angle of hair, respectively by top area, the hair of the first face side region and the second face side region According to preset rules subregion.
Wherein, preset rules include: that differential seat angle is subdivided into the same subregion less than the hair of the second preset difference value.It is preferred that , which is 0.5~1 °.
After hair is divided into top area, the first face side region and the second face side region, it is preferred that
For top area, which is the 5% of the area of top area;
For the first face side region, which is the 5% of the area of the first face side region;
For the second face side region, which is the 5% of the area of the second face side region.
For top area, possible hair can have point to for example, it may be possible to which what is occurred point assigns to five or five points to from sixteen (in the case where one or nine points, point to line of demarcation be located at the first face side region or the second face side region, be not in area overhead Domain).Therefore, after by the hair of top area according to preset rules subregion the step of, this method further include:
The hair of detection top area whether have point to.
By the step, can avoid by hair point to the case where error detection at hair distribution situation be it is in disorder, to provide The prompting of mistake.Specifically, the hair of the detection top area whether have point to the step of include:
If the differential seat angle between two hair subregions of top area is greater than third preset difference value, and two hair subregions Area be all larger than the second preset area, it is determined that hair in top area have point to;Otherwise, it determines in top area Hair do not have point to.
It is furthermore preferred that the third preset difference value is 100 °.Second preset area is the 20% of the area of top area.
Two points detected to the line between region be hair point in top area to line of demarcation.
Preferably, if the hair of top area have point to, step S307 detection top area hair subregion it Between differential seat angle when, need to detect the differential seat angle between the same point of hair subregion into region, be just avoided that hair point to right The interference of detection, to avoid erroneous detection.Therefore, step S307 is specifically included:
Divide if the hair of top area has to that detects top area is located at same point of two hairs into region Differential seat angle between subregion.
Step S309 is specifically included:
Judge whether the differential seat angle between same point of two hair subregions into region for detecting top area is big In the first preset difference value.
The second prompting message is shown if more than step S310 is then carried out;Otherwise step S312 is carried out.
Certainly, if the hair of top area do not have point to, can directly detect top area two hair subregions it Between differential seat angle whether be greater than the first preset difference value.
For the first face side region and the second face side region, generally will not this two regions carry out hairs point to, so Without detecting hair point to whether the differential seat angle directly detected respectively between two hair subregions in two regions is greater than first Preset difference value.
Step S311: receiving the instruction of user, executes or abandon the hair in the hair subregion in adjustment hair zones The operation of distribution situation.
After having carried out the step, then carry out step S312.
Step S312: judge whether the partial region in hair zones has hair.
The step, which is mainly used in, detects whether bald situation.
When the partial region in hair zones does not have hair, then step S313 is carried out;Otherwise step S315 is carried out.
Step S313: display third prompting message.
The partial region that the third prompting message can be hair zones does not have hair, so that user reminds according to the third Information adjusts hair distribution situation.
Step S314: receiving the instruction of user, executes or abandon the hair point of the partial region in adjustment hair zones The operation of cloth situation.
Preferably, when user receives third prompting message, user may be selected to carry out the partial region of not hair Repairing.
For example, user can repair the hair at least partly lacked by addition hair.Specifically, can lead to It crosses and preset a variety of hair modules is set in software, select to use for user.
After having carried out the step, then carry out step S315.
It should be understood that distribution situation and inspection of the hair in above-mentioned detection preview image relative to area of skin color Gauge head send out relative to hair zones distribution situation detection does not limit sequence, can carry out simultaneously, can also with random order into Row.
Step S315: photo is generated.
To sum up, the method for the detection hair distribution situation of another embodiment of the present invention, by being detected on preview image The hair zones except area of skin color and area of skin color are distinguished, then detects hair and whether is distributed in area of skin color and be located at human eye Whether position below, the differential seat angle between hair subregion in hair zones are greater than the first preset difference value, in hair zones Whether partial region without hair, so as to remind user when distribution situation meets each preset condition, so as to user and When hair distribution situation is adjusted so that shooting photo effect it is ideal, avoid user need repeat take pictures.
The embodiment of the invention provides a kind of mobile terminals.Preferably, the mobile terminal of the embodiment can be but unlimited In mobile phone, tablet computer, MP3/MP4, smartwatch, Intelligent bracelet, personal digital assistant (Personal Digital Assistant, PDA) etc..As shown in figure 4, the structural block diagram of the mobile terminal for the embodiment of the present invention.The mobile terminal is specific Including following module:
Module 401 is obtained, for obtaining the preview image of camera acquisition.
First detection module 402 obtains human face region for carrying out Face datection on preview image.
As shown in Fig. 2, the box 1 in Fig. 2 is human face region.
The first detection module 402 can use method for detecting human face in the prior art, such as be built by head feature Mould etc. realizes Face datection.
Second detection module 403 obtains area of skin color and human face region for carrying out Face Detection in human face region In hair zones in addition to area of skin color.
Second detection module 403 can use skin color detection method in the prior art, such as pass through complexion model face The selection of the colour space, skin color modeling realize Face Detection.As shown in Fig. 2, the box 2 in Fig. 2 is area of skin color.In general, Area about 30% of the human face region than area of skin color.
Hair zones in human face region in addition to area of skin color can be obtained by hair detection algorithm.The second detection mould The algorithm for the hair detection that block 403 uses generally has following three kinds of methods: 1) based on the color development detection of color space statistics;2) base It is detected in the color development of probabilistic model, Gauss model;3) based on the color development detection of neural network machine study.
Third detection module 404, for detecting the hair in preview image relative to area of skin color and/or hair zones Distribution situation, and when distribution situation meets preset condition, show user reminding information.
The hair distribution situation that the mobile terminal of the present embodiment predominantly detects includes: whether hair blocks face, and hair is No in disorder, whether hair at least partly lacks.
Third detection module 404 reminds user's hair distribution situation by display user reminding information, can be convenient for user Hair distribution situation is adjusted.Voice prompting or text prompt can specifically be passed through.
To sum up, the mobile terminal of the embodiment of the present invention distinguishes area of skin color and the colour of skin by detecting on preview image Hair zones except region, then the hair distribution situation of area of skin color and/or hair zones is detected, so as to when distribution feelings Condition reminds user when meeting preset condition, so that user is in time adjusted hair distribution situation, so that the photo of shooting Effect is ideal, and user is avoided to need to repeat to take pictures.
Another embodiment of the present invention additionally provides a kind of mobile terminal.Preferably, the mobile end of another embodiment End can be but not limited to mobile phone, tablet computer, MP3/MP4, smartwatch, Intelligent bracelet, personal digital assistant (Personal Digital Assistant, PDA) etc..As shown in figure 5, the structural block diagram of the mobile terminal for another embodiment of the present invention.
The mobile terminal of another embodiment includes: to obtain module 501, first detection module 502, the second detection module 503 and third detection module 504.Above-mentioned module respectively with the acquisition module 401 of previous embodiment, first detection module 402, Second detection module 403 and third detection module 404 are identical, and details are not described herein.
Preferably, which includes:
First detection sub-module 5041, for being located at human eye or less when the hair in preview image is distributed in area of skin color Position when, show the first prompting message.
First detection sub-module 5041 detects distribution situation of the hair relative to area of skin color, is mainly used in detector The case where whether hair blocks face.
Wherein, human eye can be determined by the method for the human eye detection of the prior art, such as be realized by human eye modeling etc. Human eye detection.
Under normal circumstances, below human eye it is not no hair, if having hair below human eye, hair blocks face, meeting Influence the effect of the photo of shooting.Therefore, when hair is distributed in area of skin color position below positioned at human eye, show hair Face is blocked, then the first detection sub-module 5041 shows the first prompting message.First prompting message can be to be had below human eye Hair blocks face, so as to remind user to can adjust hair distribution situation.If hair distribution situation is not hide without hair Face is kept off, then does not need to remind user.
Preferably, the mobile terminal further include:
First operation module 505 executes or abandons the hair point in adjustment area of skin color for receiving the instruction of user The operation of cloth situation.
Preferably, which includes:
Second detection sub-module 5042, for being greater than when the differential seat angle between two adjacent hair subregions in hair zones When the first preset difference value, the second prompting message is shown.
Second detection sub-module 5042 detects distribution situation of the hair relative to hair zones, is mainly used in detector Hair whether in disorder situation.
Wherein, the area of any hair subregion in two hair subregions is less than the first preset area.The angle of hair subregion Degree is the angle mean value of all hairs in hair subregion.Differential seat angle between two hair subregions is two adjacent hair subregions Angle between difference.
Second prompting message may is that the hair of hair zones is in disorder, so that user is according to the second prompting message tune Whole hair distribution situation.
Preferably, the first preset difference value is 30 °.
Preferably, the mobile terminal further include:
First division module 506 is greater than for the differential seat angle between two adjacent hair subregions in the hair zones When one preset difference value, show the second prompting message the step of before, hair zones are divided into top area, the first face side region With the second face side region.
As shown in Fig. 2, box 3 is top area, box 4 is the first face side region, and box 5 is the second face side region.
Hair zones are divided into three regions, are primarily due to, the angle of hair has biggish difference in three regions Not, be easy to causeing hair distribution situation is in disorder error detection, therefore, is divided into three regions point by the first division module 506 It does not detect, erroneous detection can be reduced to the greatest extent.It preferably, can be according to different hairs after hair zones are divided into above three region The hair distribution situation in region shows that the second prompting message, such as the second prompting message are in disorder for the hair of top area, so as to User is more clearly specifically that the hair of where is in disorder, to adjust the hair distribution situation at this.
Second division module 507, for respectively pressing the hair of top area, the first face side region and the second face side region According to preset rules subregion.
Wherein, the second division module 507 carries out subregion to hair by the way that following submodule is arranged:
Establishment of coordinate system submodule 5071, for establishing coordinate system in preview image.
For example, the coordinate system is using direction horizontally to the right as the positive direction of x-axis, using direction straight up as y-axis just Direction is in a counterclockwise direction angle positive direction.
It should be understood that the application is not limited thereto, which can also be other forms.
Angle acquisition submodule 5072 obtains the angle of hair for carrying out line detection in hair zones.
It is reference with the coordinate system of above-mentioned citing, the angle of hair is that the positive axis of x-axis is rotated to according to angle positive direction The angle of each hair.Because hair can be regarded as line, the method that angle acquisition submodule 5072 is detected using line.It should The method of line detection can be the Hough transformation method of image procossing.
Subregion submodule 5073, for the angle according to hair, respectively by top area, the first face side region and the second face The hair of side region is according to preset rules subregion.
Wherein, preset rules include: that differential seat angle is subdivided into the same subregion less than the hair of the second preset difference value.It is preferred that , which is 0.5~1 °.
After hair is divided into top area, the first face side region and the second face side region by subregion submodule 5073, it is preferred that
For top area, which is the 5% of the area of top area;
For the first face side region, which is the 5% of the area of the first face side region;
For the second face side region, which is the 5% of the area of the second face side region.
For top area, possible hair can have point to for example, it may be possible to which what is occurred point assigns to five or five points to from sixteen (in the case where one or nine points, point to line of demarcation be located at the first face side region or the second face side region, be not in area overhead Domain).Therefore, the mobile terminal further include:
4th detection module 508, for by the hair of top area according to after the step of preset rules subregion, detector The hair in top region whether have point to.
By the 4th detection module 508, can avoid by hair point to the case where error detection at hair distribution situation be it is in disorder, To the prompting to make mistake.
Specifically, the 4th detection module 508 includes:
4th detection sub-module 5081, if being greater than for the differential seat angle between two adjacent hair subregions of top area Three preset difference values, and the area of two adjacent hair subregions is all larger than the second preset area, it is determined that the head in top area Hair have point to;Otherwise, it determines hair in top area do not have point to.
Preferably, second detection sub-module 5042 further include:
Detection unit 50421, if for top area hair have point to, when top area be located at same point to When the differential seat angle between two hair subregions in region is greater than the first preset difference value, the second prompting message is shown.
Certainly, divide if the hair of top area does not have to the second detection sub-module 5042 can directly detect crown area Whether the differential seat angle between two hair subregions in domain is greater than the first preset difference value.
For the first face side region and the second face side region, generally will not this two regions carry out hairs point to, so Without detecting hair point to the second detection sub-module 5042 is directly detected respectively between two hair subregions in two regions Whether differential seat angle is greater than the first preset difference value.
Preferably, the mobile terminal further include:
Second operation module 509 executes or abandons the hair point in adjustment hair zones for receiving the instruction of user The operation of hair distribution situation in area.
Preferably, which includes:
Third detection sub-module 5043, for detecting the hair in preview image relative to area of skin color and/or hair area The distribution situation in domain shows third prompting message when the partial region in hair zones does not have hair.
Third detection sub-module 5043 detects distribution situation of the hair relative to hair zones, is mainly used in and detects whether There is bald situation.
The partial region that the third prompting message can be hair zones does not have hair, so that user reminds according to the third Information adjusts hair distribution situation.
Preferably, when user receives third prompting message, the partial region of not hair is repaired in user's selection It mends, then the mobile terminal further include:
Third operation module 510 executes or abandons the part area in adjustment hair zones for receiving the instruction of user The operation of the hair distribution situation in domain.
For example, user can add hair by third operation module 510 to repair to the hair at least partly lacked It mends.Specifically, can select to use for user by the way that preset a variety of hair modules are arranged in software.
It should be understood that not limiting the first above-mentioned detection sub-module 5041, the second detection sub-module 5042 and The mutual sequence that three detection sub-modules 5043 are detected, three submodules can be detected simultaneously, can also be with Random order is detected.
To sum up, the mobile terminal of another embodiment of the present invention distinguishes area of skin color by detecting on preview image With the hair zones except area of skin color, then detect hair whether be distributed in area of skin color be located at human eye position below, head Whether the differential seat angle between hair subregion in hair region is greater than the first preset difference value, and whether the partial region in hair zones does not have There is hair, so as to remind user when distribution situation meets each preset condition, so that user is distributed feelings to hair in time Condition is adjusted, so that the effect of the photo of shooting is ideal, user is avoided to need to repeat to take pictures.
Fig. 6 is the structural block diagram of the mobile terminal of another embodiment of the invention.Mobile terminal 600 shown in fig. 6 includes: At least one processor 601, memory 602, at least one network interface 604, user interface 603 and camera 606.It is mobile whole Various components in end 600 are coupled by bus system 605.It is understood that bus system 605 is for realizing these components Between connection communication.Bus system 605 further includes power bus, control bus and state letter in addition to including data/address bus Number bus.But for the sake of clear explanation, various buses are all designated as bus system 605 in Fig. 6.
Wherein, user interface 605 may include display, keyboard or pointing device for example, mouse, trace ball (trackball), touch-sensitive plate or touch screen etc..
It is appreciated that the memory 602 in the embodiment of the present invention can be volatile memory or nonvolatile memory, It or may include both volatile and non-volatile memories.Wherein, nonvolatile memory can be read-only memory (Read- Only Memory, ROM), programmable read only memory (Programmable ROM, PROM), the read-only storage of erasable programmable Device (Erasable PROM, EPROM), electrically erasable programmable read-only memory (Electrically EPROM, EEPROM) or Flash memory.Volatile memory can be random access memory (Random Access Memory, RAM), be used as external high Speed caching.By exemplary but be not restricted explanation, the RAM of many forms is available, such as static random access memory (Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), Synchronous Dynamic Random Access Memory (Synchronous DRAM, SDRAM), double data speed synchronous dynamic RAM (Double Data Rate SDRAM, DDRSDRAM), enhanced Synchronous Dynamic Random Access Memory (Enhanced SDRAM, ESDRAM), synchronized links Dynamic random access memory (Synch Link DRAM, SLDRAM) and direct rambus random access memory (Direct Rambus RAM, DRRAM).The memory 602 of the system and method for description of the embodiment of the present invention is intended to include but is not limited to these With the memory of any other suitable type.
In some embodiments, memory 602 stores following element, executable modules or data structures, or Their subset of person or their superset: operating system 6021 and application program 6022.
Wherein, operating system 6021 include various system programs, such as ccf layer, core library layer, driving layer etc., are used for Realize various basic businesses and the hardware based task of processing.Application program 6022 includes various application programs, such as media Player (MediaPlayer), browser (Browser) etc., for realizing various applied business.Realize embodiment of the present invention side The program of method may be embodied in application program 6022.
In embodiments of the present invention, by the program or instruction of calling memory 6022 to store, specifically, can be application The program or instruction stored in program 6022.Processor 601 is used to obtain the preview image of the acquisition of camera 606;In preview graph As upper carry out Face datection, human face region is obtained;Face Detection is carried out in human face region, obtains area of skin color and face area Hair zones in domain in addition to area of skin color;The hair in preview image is detected relative to area of skin color and/or hair zones Distribution situation, and when distribution situation meets preset condition, user interface 603 is for showing user reminding information.
The method that the embodiments of the present invention disclose can be applied in processor 601, or be realized by processor 601. Processor 601 may be a kind of IC chip, the processing capacity with signal.During realization, the above method it is each Step can be completed by the integrated logic circuit of the hardware in processor 601 or the instruction of software form.Above-mentioned processing Device 601 can be general processor, digital signal processor (Digital Signal Processor, DSP), dedicated integrated electricity Road (Application Specific Integrated Circuit, ASIC), ready-made programmable gate array (Field Programmable Gate Array, FPGA) either other programmable logic device, discrete gate or transistor logic, Discrete hardware components.It may be implemented or execute disclosed each method, step and the logic diagram in the embodiment of the present invention.It is general Processor can be microprocessor or the processor is also possible to any conventional processor etc..In conjunction with institute of the embodiment of the present invention The step of disclosed method, can be embodied directly in hardware decoding processor and execute completion, or with the hardware in decoding processor And software module combination executes completion.Software module can be located at random access memory, and flash memory, read-only memory may be programmed read-only In the storage medium of this fields such as memory or electrically erasable programmable memory, register maturation.The storage medium is located at The step of memory 602, processor 601 reads the information in memory 602, completes the above method in conjunction with its hardware.
It is understood that the embodiment of the present invention description these embodiments can with hardware, software, firmware, middleware, Microcode or combinations thereof is realized.For hardware realization, processing unit be may be implemented in one or more specific integrated circuits (Application Specific Integrated Circuits, ASIC), digital signal processor (Digital Signal Processing, DSP), digital signal processing appts (DSP Device, DSPD), programmable logic device (Programmable Logic Device, PLD), field programmable gate array (Field-Programmable Gate Array, FPGA), general place It manages in device, controller, microcontroller, microprocessor, other electronic units for executing herein described function or combinations thereof.
For software implementations, can by execute the embodiment of the present invention described in function module (such as process, function etc.) come Realize technology described in the embodiment of the present invention.Software code is storable in memory 602 and is executed by processor.Memory 602 can realize in processor 601 or outside processor 601.
Optionally, the step of processor 601 is used for when distribution situation meets preset condition, shows user reminding information In, processor 601 is specifically used for using when the hair in preview image is distributed in area of skin color position below positioned at human eye Family interface 603 is for showing the first prompting message;And/or when the angle between two adjacent hair subregions in hair zones When difference is greater than the first preset difference value, user interface 603 is for showing the second prompting message, wherein in two adjacent hair subregions Any hair subregion area less than the first preset area, the angle of hair subregion is that the angle of the hair in hair subregion is equal It is worth, the differential seat angle between two adjacent hair subregions is the difference between the angle of two adjacent hair subregions;And/or work as head When partial region in hair region does not have hair, user interface 603 is for showing third prompting message.
Optionally, as another embodiment, processor 601 be used for when two adjacent hair subregions in hair zones it Between differential seat angle be greater than the first preset difference value when, user interface 603 for show the second prompting message the step of before, processor 601 are also used to for hair zones being divided into top area, the first face side region and the second face side region;Respectively by top area, The hair of first face side region and the second face side region is according to preset rules subregion;Wherein, preset rules include: that differential seat angle is small The same subregion is subdivided into the hair of the second preset difference value.
Optionally, processor 601 is used for the hair of top area according to after the step of preset rules subregion, processor 601 hairs for being also used to detect top area whether have point to;Processor 601 is used for when two adjacent heads in hair zones When sending out the differential seat angle between subregion greater than the first preset difference value, user interface 603 was used in the step of showing the second prompting message, If the hair that processor 601 is specifically used for top area has point to being located at same point to region when detection top area When differential seat angle between the adjacent hair subregion of interior two is greater than the first preset difference value, user interface 603 is for showing that second mentions Awake information.
Optionally, the hair that processor 601 is used to detect top area whether have point to the step of in, processor 601 If being greater than third preset difference value specifically for the differential seat angle between two adjacent hair subregions of top area, and two adjacent The area of hair subregion is all larger than the second preset area, it is determined that hair in top area have point to;Otherwise, it determines the crown Hair in region do not have point to.
Mobile terminal 600 can be realized each process that mobile terminal is realized in previous embodiment, to avoid repeating, here It repeats no more.
The mobile terminal 600 of the embodiment of the present invention distinguishes area of skin color and colour of skin area by detecting on preview image Hair zones except domain, then the hair distribution situation of area of skin color and/or hair zones is detected, so as to work as distribution situation User is reminded when meeting preset condition, so that user is in time adjusted hair distribution situation, so that the effect of the photo of shooting Fruit is ideal, and user is avoided to need to repeat to take pictures.
Fig. 7 is the structural schematic diagram of the mobile terminal of a still further embodiment of the present invention.Specifically, the mobile terminal in Fig. 7 700 can be mobile phone, tablet computer, personal digital assistant (Personal Digital Assistant, PDA) or vehicle mounted electric Brain etc..
Mobile terminal 700 in Fig. 7 includes radio frequency (Radio Frequency, RF) circuit 710, memory 720, input Unit 730, display unit 740, processor 760, voicefrequency circuit 770, WiFi (Wireless Fidelity) module 780, power supply 790 and camera 750.
Wherein, input unit 730 can be used for receiving the number or character information of user's input, and generation and mobile terminal The related signal input of 700 user setting and function control.Specifically, in the embodiment of the present invention, which can To include touch panel 731.Touch panel 731, also referred to as touch screen collect the touch operation of user on it or nearby (for example user uses the operations of any suitable object or attachment on touch panel 731 such as finger, stylus), and according to preparatory The formula of setting drives corresponding attachment device.Optionally, touch panel 731 may include touch detecting apparatus and touch controller Two parts.Wherein, the touch orientation of touch detecting apparatus detection user, and touch operation bring signal is detected, by signal Send touch controller to;Touch controller receives touch information from touch detecting apparatus, and is converted into contact coordinate, The processor 760 is given again, and can be received order that processor 760 is sent and be executed.Furthermore, it is possible to using resistance-type, The multiple types such as condenser type, infrared ray and surface acoustic wave realize touch panel 731.In addition to touch panel 731, input unit 730 can also include other input equipments 732, other input equipments 732 can include but is not limited to physical keyboard, function key One of (such as volume control button, switch key etc.), trace ball, mouse, operating stick etc. are a variety of.
Wherein, display unit 740 can be used for showing information input by user or be supplied to the information and movement of user The various menu interfaces of terminal 700.Display unit 740 may include display panel 741, optionally, can use LCD or organic hair The forms such as optical diode (Organic Light-Emitting Diode, OLED) configure display panel 741.
It should be noted that touch panel 731 can cover display panel 741, touch display screen is formed, when the touch display screen is examined After measuring touch operation on it or nearby, processor 760 is sent to determine the type of touch event, is followed by subsequent processing device 760 provide corresponding visual output according to the type of touch event in touch display screen.
Touch display screen includes Application Program Interface viewing area and common control viewing area.The Application Program Interface viewing area And arrangement mode of the common control viewing area does not limit, can be arranged above and below, left-right situs etc. can distinguish two it is aobvious Show the arrangement mode in area.The Application Program Interface viewing area is displayed for the interface of application program.Each interface can be with The interface elements such as the icon comprising at least one application program and/or widget desktop control.The Application Program Interface viewing area Or the empty interface not comprising any content.This commonly uses control viewing area for showing the higher control of utilization rate, for example, Application icons such as button, interface number, scroll bar, phone directory icon etc. are set.
Wherein processor 760 is the control centre of mobile terminal 700, utilizes various interfaces and connection whole mobile phone Various pieces, by running or executing the software program and/or module that are stored in first memory 721, and calling storage Data in second memory 722 execute the various functions and processing data of mobile terminal 700, thus to mobile terminal 700 Carry out integral monitoring.Optionally, processor 760 may include one or more processing units.
In embodiments of the present invention, by call store the first memory 721 in software program and/or module and/ Or the data in the second memory 722, processor 760 are used to obtain the preview image of the acquisition of camera 750;In preview image Upper carry out Face datection, obtains human face region;Face Detection is carried out in human face region, obtains area of skin color and human face region In hair zones in addition to area of skin color;The hair in preview image is detected relative to area of skin color and/or hair zones Distribution situation, and when distribution situation meets preset condition, display unit 740 is for showing user reminding information.
Optionally, the step of processor 760 is used for when distribution situation meets preset condition, shows user reminding information In, processor 760 is specifically used for showing when the hair in preview image is distributed in area of skin color position below positioned at human eye Show unit 740 for show the first prompting message;And/or when the angle between two adjacent hair subregions in hair zones When difference is greater than the first preset difference value, display unit 740 is for showing the second prompting message, wherein in two adjacent hair subregions Any hair subregion area less than the first preset area, the angle of hair subregion is that the angle of the hair in hair subregion is equal It is worth, the differential seat angle between two adjacent hair subregions is the difference between the angle of two adjacent hair subregions;And/or work as head When partial region in hair region does not have hair, display unit 740 is for showing third prompting message.
Optionally, as another embodiment, processor 760 be used for when two adjacent hair subregions in hair zones it Between differential seat angle be greater than the first preset difference value when, display unit 740 for show the second prompting message the step of before, processor 760 are also used to for hair zones being divided into top area, the first face side region and the second face side region;Respectively by top area, The hair of first face side region and the second face side region is according to preset rules subregion;Wherein, preset rules include: that differential seat angle is small The same subregion is subdivided into the hair of the second preset difference value.
Optionally, processor 760 is used for the hair of top area according to after the step of preset rules subregion, processor 760 hairs for being also used to detect top area whether have point to;Processor 760 is used for when two adjacent heads in hair zones When sending out the differential seat angle between subregion greater than the first preset difference value, display unit 740 was used in the step of showing the second prompting message, If the hair that processor 760 is specifically used for top area has point to being located at same point to region when detection top area When differential seat angle between the adjacent hair subregion of interior two is greater than the first preset difference value, display unit 740 is for showing that second mentions Awake information.
Optionally, the hair that processor 760 is used to detect top area whether have point to the step of in, processor 760 If being greater than third preset difference value specifically for the differential seat angle between two adjacent hair subregions of top area, and two adjacent The area of hair subregion is all larger than the second preset area, it is determined that hair in top area have point to;Otherwise, it determines the crown Hair in region do not have point to.
As it can be seen that the mobile terminal 700 of the embodiment of the present invention, distinguishes area of skin color and skin by detecting on preview image Hair zones except color region, then the hair distribution situation of area of skin color and/or hair zones is detected, so as to when distribution Situation reminds user when meeting preset condition, so that user is in time adjusted hair distribution situation, so that the photo of shooting Effect it is ideal, avoid user need repeat take pictures.
Those of ordinary skill in the art may be aware that the embodiment in conjunction with disclosed in the embodiment of the present invention describe it is each Exemplary unit and algorithm steps can be realized with the combination of electronic hardware or computer software and electronic hardware.These Function is implemented in hardware or software actually, the specific application and design constraint depending on technical solution.Profession Technical staff can use different methods to achieve the described function each specific application, but this realization is not answered Think beyond the scope of this invention.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description, The specific work process of device and unit, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
In embodiment provided herein, it should be understood that disclosed device and method can pass through others Mode is realized.For example, the apparatus embodiments described above are merely exemplary, for example, the division of the unit, only A kind of logical function partition, there may be another division manner in actual implementation, for example, multiple units or components can combine or Person is desirably integrated into another system, or some features can be ignored or not executed.Another point, shown or discussed is mutual Between coupling, direct-coupling or communication connection can be through some interfaces, the INDIRECT COUPLING or communication link of device or unit It connects, can be electrical property, mechanical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme 's.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit It is that each unit physically exists alone, can also be integrated in one unit with two or more units.
It, can be with if the function is realized in the form of SFU software functional unit and when sold or used as an independent product It is stored in a computer readable storage medium.Based on this understanding, technical solution of the present invention is substantially in other words The part of the part that contributes to existing technology or the technical solution can be embodied in the form of software products, the meter Calculation machine software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be a People's computer, server or network equipment etc.) it performs all or part of the steps of the method described in the various embodiments of the present invention. And storage medium above-mentioned includes: that USB flash disk, mobile hard disk, ROM, RAM, magnetic or disk etc. are various can store program code Medium.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be subject to the protection scope in claims.

Claims (8)

1. a kind of method for detecting hair distribution situation, applied to the mobile terminal with camera characterized by comprising
Obtain the preview image of the camera acquisition;
Face datection is carried out on the preview image, obtains human face region;
Face Detection is carried out in the human face region, is obtained in area of skin color and the human face region except the area of skin color Except hair zones;
The hair in the preview image is detected relative to the area of skin color and/or the distribution situation of the hair zones, and When the distribution situation meets preset condition, user reminding information is shown;
It is described when the distribution situation meets preset condition, show user reminding information, comprising:
When the hair in the preview image is distributed in the area of skin color position below positioned at human eye, display first is mentioned Awake information;
And/or
When the differential seat angle between two adjacent hair subregions in the hair zones is greater than the first preset difference value, display second Prompting message, wherein the area of any hair subregion in two adjacent hair subregions is less than the first preset area, the hair The angle of subregion is the angle mean value of all hairs in the hair subregion, and the differential seat angle between two adjacent hair subregions is Difference between the angle of two adjacent hair subregions;
And/or
When the partial region in the hair zones does not have hair, third prompting message is shown.
2. the method according to claim 1, wherein two adjacent hairs point when in the hair zones When differential seat angle between area is greater than the first preset difference value, before the step of showing the second prompting message, further includes:
The hair zones are divided into top area, the first face side region and the second face side region;
Respectively by the hair of the top area, the first face side region and the second face side region according to preset rules point Area;
Wherein, the preset rules include: that differential seat angle is subdivided into the same subregion less than the hair of the second preset difference value.
3. according to the method described in claim 2, it is characterized in that, the hair by the top area is according to preset rules After the step of subregion, further includes:
Detect the top area hair whether have point to;
When differential seat angle between two adjacent hair subregions when in the hair zones is greater than the first preset difference value, display The step of second prompting message, comprising:
If the hair of the top area has point to when that detects the top area is located at same point of two into region When differential seat angle between a adjacent hair subregion is greater than the first preset difference value, the second prompting message is shown.
4. according to the method described in claim 3, it is characterized in that, whether the hair of the detection top area has point To the step of, comprising:
If the differential seat angle between the adjacent hair subregion of two of the top area is greater than third preset difference value, and two The area of the adjacent hair subregion is all larger than the second preset area, it is determined that hair in the top area have point to; Otherwise, it determines hair in the top area do not have point to.
5. a kind of mobile terminal, including camera, which is characterized in that further include:
Module is obtained, for obtaining the preview image of the camera acquisition;
First detection module obtains human face region for carrying out Face datection on the preview image;
Second detection module obtains area of skin color and the face area for carrying out Face Detection in the human face region Hair zones in domain in addition to the area of skin color;
Third detection module, for detecting the hair in the preview image relative to the area of skin color and/or the hair The distribution situation in region, and when the distribution situation meets preset condition, show user reminding information;
The third detection module includes:
First detection sub-module, for being located at human eye or less when the hair in the preview image is distributed in the area of skin color Position when, show the first prompting message;
And/or
Second detection sub-module, for being greater than first when the differential seat angle between two adjacent hair subregions in the hair zones When preset difference value, the second prompting message is shown, wherein the area of any hair subregion in two adjacent hair subregions is less than the One preset area, the angle of the hair subregion are the angle mean value of all hairs in the hair subregion, two adjacent institutes Stating the differential seat angle between hair subregion is the difference between the angle of two adjacent hair subregions;
And/or
Third detection sub-module, for showing third prompting message when the partial region in the hair zones does not have hair.
6. mobile terminal according to claim 5, which is characterized in that further include:
First division module, for the hair zones to be divided into top area, the first face side region and the second face side region;
Second division module, for respectively by the top area, the first face side region and the second face side region Hair is according to preset rules subregion;
Wherein, the preset rules include: that differential seat angle is subdivided into the same subregion less than the hair of the second preset difference value.
7. mobile terminal according to claim 6, which is characterized in that further include:
4th detection module, the hair for detecting the top area whether have point to;
Second detection sub-module includes:
Detection unit, for the hair in the top area have point to, and detect the top area be located at it is same When the differential seat angle being divided between two into region adjacent hair subregions is greater than the first preset difference value, letter is reminded in display second Breath.
8. mobile terminal according to claim 7, which is characterized in that the 4th detection module includes:
4th detection sub-module is greater than for the differential seat angle between two adjacent hair subregions of the top area Three preset difference values, and the area of two adjacent hair subregions is all larger than the second preset area, determines the top area Interior hair have point to;Otherwise, it determines hair in the top area do not have point to.
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CN107451555B (en) * 2017-07-27 2020-08-25 安徽慧视金瞳科技有限公司 Hair direction judging method based on gradient direction
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