CN106161970B - A kind of image pickup method, device and mobile terminal - Google Patents

A kind of image pickup method, device and mobile terminal Download PDF

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Publication number
CN106161970B
CN106161970B CN201610852188.1A CN201610852188A CN106161970B CN 106161970 B CN106161970 B CN 106161970B CN 201610852188 A CN201610852188 A CN 201610852188A CN 106161970 B CN106161970 B CN 106161970B
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current shooting
shooting picture
target
captured
picture
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CN106161970A (en
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马晓燕
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Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
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Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60Control of cameras or camera modules
    • H04N23/67Focus control based on electronic image sensor signals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60Control of cameras or camera modules
    • H04N23/61Control of cameras or camera modules based on recognised objects
    • H04N23/611Control of cameras or camera modules based on recognised objects where the recognised objects include parts of the human body

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Studio Devices (AREA)

Abstract

The invention discloses a kind of image pickup method and devices to obtain current shooting picture by receiving the shooting instruction of user's triggering;Extract the profile information of target to be captured in current shooting picture;By the brightness regulation of current shooting picture to predetermined luminance value, to lighten the background of target to be captured;It is focused according to profile information to target to be captured, completes the shooting to current shooting picture.Image pickup method and device provided by the present invention can more accurately navigate to focusing area, substantially reduce the time of focusing, take pictures to be rapidly completed by promoting the background luminance at interface of finding a view.The application substantially increases the usage experience of user, increases practicability.In addition, the present invention also provides a kind of mobile terminals with above-mentioned technological merit.

Description

A kind of image pickup method, device and mobile terminal
Technical field
The present invention relates to mobile terminal technique for taking fields, eventually more particularly to a kind of image pickup method, device and movement End.
Background technique
With the diversification of intelligent mobile terminal function, user is also higher and higher to the experience requirements taken pictures, mobile terminal Camera function get more and more attention.In actual use, people inevitably encounter the case where taking pictures under sunlight. When facing away from the sun and take pictures, it is found that the dark of human face region can not recognize face, can not even focus into sometimes Function causes to take pictures unsuccessful.Or when face is under dark background, it is also difficult to focus successfully.In addition, in feelings of taking pictures at a distance Under condition, being also difficult to capture captured face due to, unsuccessful problem of focusing for a long time can be equally encountered.Cause This, the practicability and user experience of prior art are all poor.
Summary of the invention
The object of the present invention is to provide a kind of image pickup method, device and mobile terminals, real to solve existing image pickup method With the problem that property and user experience are poor.
In order to solve the above technical problems, the present invention provides a kind of image pickup method, comprising:
The shooting instruction of user's triggering is received, current shooting picture is obtained;
Extract the profile information of target to be captured in the current shooting picture;
By the brightness regulation of the current shooting picture to predetermined luminance value, to lighten the background of the target to be captured;
It is focused according to the profile information to the target to be captured, completes the bat to the current shooting picture It takes the photograph.
Optionally, before by the brightness regulation to predetermined luminance value of the current shooting picture further include:
The unlatching for receiving user's input lightens the triggering command of background mode automatically, lightens background mode into automatic.
Optionally, before by the brightness regulation to predetermined luminance value of the current shooting picture further include:
The brightness value for obtaining the current shooting picture, when the brightness value is lower than predetermined luminance threshold value, into automatic It lightens background mode or output prompts the user to open the prompt information for lightening background mode.
Optionally, the profile information for extracting target to be captured in the current shooting picture includes:
Image pretreatment operation is carried out to the current shooting picture;
Feature extraction is carried out to the image Jing Guo pretreatment operation, obtains the profile information of the target to be captured.
Optionally, brightness regulation to the predetermined luminance value by the current shooting picture includes:
Obtain the brightness value of the current shooting picture;
According to the corresponding relationship of the brightness value and adjustment parameter that pre-establish, by the brightness regulation of the current shooting picture To the predetermined luminance value.
The present invention also provides a kind of filming apparatus, comprising:
Current shooting picture obtains module, for receiving the shooting instruction of user's triggering, obtains current shooting picture;
Profile extraction module, for extracting the profile information of target to be captured in the current shooting picture;
Adjustment module, it is described wait clap to lighten for by the brightness regulation of the current shooting picture to predetermined luminance value Take the photograph the background of target;
Shooting module is completed for being focused according to the profile information to the target to be captured to described current The shooting of shooting picture.
Optionally, further includes:
Active module, for receiving user before by the brightness regulation to predetermined luminance value of the current shooting picture The unlatching of input lightens the triggering command of background mode automatically, lightens background mode into automatic;Or obtain the current bat The brightness value for taking the photograph picture is prompted when the brightness value is lower than predetermined luminance threshold value into lightening background mode automatically or exporting The user opens the prompt information for lightening background mode.
Optionally, the profile extraction module includes:
Pretreatment unit, for carrying out image pretreatment operation to the current shooting picture;
Extraction unit obtains the target to be captured for carrying out feature extraction to the image Jing Guo pretreatment operation Profile information.
Optionally, the adjustment module includes:
Brightness value acquiring unit, for obtaining the brightness value of the current shooting picture;
Unit is adjusted, for the corresponding relationship according to the brightness value pre-established and adjustment parameter, by the current shooting The brightness regulation of picture is to the predetermined luminance value.
The present invention also provides a kind of mobile terminals, including filming apparatus described in any of the above-described kind.
Image pickup method and device provided by the present invention obtain current shooting by receiving the shooting instruction of user's triggering Picture;Extract the profile information of target to be captured in current shooting picture;The brightness regulation of current shooting picture is bright to presetting Angle value, to lighten the background of target to be captured;It is focused according to profile information to target to be captured, completes to draw current shooting The shooting in face.Image pickup method and device provided by the present invention can be more accurate by promoting the background luminance at interface of finding a view Ground navigates to focusing area, substantially reduces the time of focusing, takes pictures to be rapidly completed.The application substantially increases user's Usage experience increases practicability.In addition, the present invention also provides a kind of mobile terminals with above-mentioned technological merit.
Detailed description of the invention
It, below will be to embodiment or existing for the clearer technical solution for illustrating the embodiment of the present invention or the prior art Attached drawing needed in technical description is briefly described, it should be apparent that, the accompanying drawings in the following description is only this hair Bright some embodiments for those of ordinary skill in the art without creative efforts, can be with root Other attached drawings are obtained according to these attached drawings.
Fig. 1 is a kind of flow chart of specific embodiment of image pickup method provided by the present invention;
Fig. 2 is the flow chart of another specific embodiment of image pickup method provided by the present invention;
Fig. 3 is the flow chart of another specific embodiment of image pickup method provided by the present invention;
Fig. 4 is the structural block diagram of filming apparatus provided in an embodiment of the present invention.
Specific embodiment
In order to enable those skilled in the art to better understand the solution of the present invention, with reference to the accompanying drawings and detailed description The present invention is described in further detail.Obviously, described embodiments are only a part of the embodiments of the present invention, rather than Whole embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise Under every other embodiment obtained, shall fall within the protection scope of the present invention.
The flow chart of specific embodiment of image pickup method provided by the present invention a kind of as shown in Figure 1, this method comprises:
Step S101: receiving the shooting instruction of user's triggering, obtains current shooting picture;
In the embodiment of the present invention, mobile terminal receives the shooting instruction of user's triggering, thereby executing the process of taking pictures.It is mobile whole End obtains current shooting picture, can carry out preview to current shooting picture by display screen.Current shooting picture include to The background frame of photographic subjects and target to be captured local environment.
Specifically, when user is shot using the camera function on mobile terminal, by touching terminal on take pictures by Shooting instruction is sent to mobile terminal by button or imaging icon.
Step S102: the profile information of target to be captured in the current shooting picture is extracted;
Target to be captured is the interested photographing objective of user, is specifically as follows the other informations such as face.
Step S103: by the brightness regulation of the current shooting picture to predetermined luminance value, to lighten the mesh to be captured Target background;
Step S104: focusing to the target to be captured according to the profile information, completes to the current shooting The shooting of picture.
Image pickup method provided by the present invention obtains current shooting picture by receiving the shooting instruction of user's triggering;It mentions Take the profile information of target to be captured in current shooting picture;By the brightness regulation of current shooting picture to predetermined luminance value, with Lighten the background of target to be captured;It is focused according to profile information to target to be captured, completes the bat to current shooting picture It takes the photograph.Image pickup method provided by the present invention can more accurately navigate to focusing by promoting the background luminance at interface of finding a view Region substantially reduces the time of focusing, takes pictures to be rapidly completed.The application substantially increases the usage experience of user, increases Practicability is added.
On the basis of the above embodiments, image pickup method provided by the present invention is by the brightness of the current shooting picture It is adjusted to before predetermined luminance value further include:
The unlatching for receiving user's input lightens the triggering command of background mode automatically, lightens background mode into automatic.
Or the brightness value of the current shooting picture is obtained, when the brightness value is lower than predetermined luminance threshold value, enter Automatically it lightens background mode or output prompts the user to open the prompt information for lightening background mode.
Specifically, the trigger switch for lightening background mode automatically can be set in the terminal.If the trigger switch is opened, Then enter and lighten background mode automatically, the brightness of current shooting picture is lightened automatically.If the trigger switch is to close State then cancels the function of lightening background automatically.Trigger switch can be physical switches or virtual switch, this does not influence this hair Bright realization.Trigger switch can voluntarily be controlled by user, and default conditions can be unlatching.
The brightness value of current shooting picture can also be detected, detect brightness value lower than predetermined luminance threshold value When, automatically into lightening background mode;Prompt information can also be exported, to prompt the user with the information for lightening background, receives and uses The entrance of family input lightens the triggering command of background mode, is manually entered and lightens background mode.
Based on any of the above embodiments, another specific embodiment of image pickup method provided by the present invention Flow chart as shown in Fig. 2, this method comprises:
Step S201: receiving the shooting instruction of user's triggering, obtains current shooting picture;
Step S202: image pretreatment operation is carried out to the current shooting picture;
Step S203: feature extraction is carried out to the image Jing Guo pretreatment operation, obtains the profile of the target to be captured Information;
Step S204: the brightness value of the current shooting picture is obtained;
Step S205: according to the corresponding relationship of the brightness value and adjustment parameter that pre-establish, by the current shooting picture Brightness regulation to the predetermined luminance value;
Specifically, the corresponding relationship that different brightness value and adjustment parameter can be preset, by calling the correspondence to close System, it is available to arrive the corresponding adjustment parameter of brightness value, the entirety of current shooting picture is lightened to realize.
Step S206: focusing to the target to be captured according to the profile information, completes to the current shooting The shooting of picture.
By target to be captured be face for, below with reference to concrete scene to image pickup method provided by the present invention carry out into One step elaborates.The flow chart of another specific embodiment of image pickup method provided by the present invention referring to figure 3., the party Method includes:
Step S301: the instruction of the unlatching camera of user's triggering is received;
Step S302: the shooting instruction of user's triggering is received;
Step S303: the current shooting picture at interface of finding a view;
Step S304: the profile of face in current shooting picture is extracted;
Step S305: being adjusted the overall brightness of current shooting picture, so that the brightness of background and target to be captured It brightens;
Step S306: focusing to face, completes shooting.
When being taken pictures back to strong light, lead to the dark in face region, is difficult to focus successfully.At this point, can only The approximate region for obtaining face can carry out brighter face quick by promoting the background luminance at interface of entirely finding a view Focusing, to complete to take pictures.
When in background it is darker in the case where take pictures when, can only probably estimate the region of face, by promoted entirely find a view The background luminance at interface can quickly focus in conjunction with the face area having been estimated that, substantially reduce used in focusing Time improves speed of taking pictures.
In the case where taking pictures at a distance, the approximate location of focusing area can only be estimated, by promoting boundary of entirely finding a view The background luminance in face obtains more accurate focusing area, is more quickly completed focus process.
The embodiment of the present invention is rapidly performed by the focusing of human face region using the background for highlighting shooting, so as to accurate Obtain face location, quickly take pictures, so bringing great convenience to user.Practicability of the embodiment of the present invention compared with By force, user experience can be effectively improved.
Filming apparatus provided in an embodiment of the present invention is introduced below, filming apparatus described below and above description Image pickup method can correspond to each other reference.
Fig. 4 is the structural block diagram of filming apparatus provided in an embodiment of the present invention, may include: referring to Fig. 4 filming apparatus
Current shooting picture obtains module 100, for receiving the shooting instruction of user's triggering, obtains current shooting picture;
Profile extraction module 200, for extracting the profile information of target to be captured in the current shooting picture;
Adjustment module 300, for by the brightness regulation of the current shooting picture to predetermined luminance value, with lighten it is described to The background of photographic subjects;
Shooting module 400, for being focused according to the profile information to the target to be captured, completion is worked as to described The shooting of preceding shooting picture.
On the basis of the above embodiments, filming apparatus provided by the present invention can further include:
Active module, for receiving user before by the brightness regulation to predetermined luminance value of the current shooting picture The unlatching of input lightens the triggering command of background mode automatically, lightens background mode into automatic;Or obtain the current bat The brightness value for taking the photograph picture is prompted when the brightness value is lower than predetermined luminance threshold value into lightening background mode automatically or exporting The user opens the prompt information for lightening background mode.
As a kind of specific embodiment, profile extraction module described in filming apparatus provided by the present invention can be specific Include:
Pretreatment unit, for carrying out image pretreatment operation to the current shooting picture;
Extraction unit obtains the target to be captured for carrying out feature extraction to the image Jing Guo pretreatment operation Profile information.
Further, the adjustment module can specifically include:
Brightness value acquiring unit, for obtaining the brightness value of the current shooting picture;
Unit is adjusted, for the corresponding relationship according to the brightness value pre-established and adjustment parameter, by the current shooting The brightness regulation of picture is to the predetermined luminance value.
Filming apparatus provided by the present invention obtains current shooting picture by receiving the shooting instruction of user's triggering;It mentions Take the profile information of target to be captured in current shooting picture;By the brightness regulation of current shooting picture to predetermined luminance value, with Lighten the background of target to be captured;It is focused according to profile information to target to be captured, completes the bat to current shooting picture It takes the photograph.Filming apparatus provided by the present invention can more accurately navigate to focusing by promoting the background luminance at interface of finding a view Region substantially reduces the time of focusing, takes pictures to be rapidly completed.The application substantially increases the usage experience of user, increases Practicability is added.
In addition, the present invention also provides a kind of mobile terminal, including any of the above-described kind of filming apparatus.
Wherein, mobile terminal can include but is not limited to: smart phone (such as Android phone, iOS mobile phone), movement The movement that internet device (MID, Mobile Internet Devices) or wearable intelligent equipment etc. have camera function is set Standby, this does not influence realization of the invention.
By taking smart phone as an example, smart phone setting about lighten automatically background switch module (default conditions be open It opens).If the function is turned on, corresponding modules will be activated in above-mentioned shooting module;If the function is closed, Then cancel the function of lightening background automatically.System setup option is commonly integrated into mobile phone camera software, can also directly be added It is added among operating system setting.
When being taken pictures back to strong light, lead to the dark in face region, is difficult to focus successfully.At this point, can only The approximate region for obtaining face can carry out brighter face quick by promoting the background luminance at interface of entirely finding a view Focusing, to complete to take pictures.
When in background it is darker in the case where take pictures when, can only probably estimate the region of face, by promoted entirely find a view The background luminance at interface can quickly focus in conjunction with the face area having been estimated that, substantially reduce used in focusing Time improves speed of taking pictures.
In the case where taking pictures at a distance, the approximate location of focusing area can only be estimated, by promoting boundary of entirely finding a view The background luminance in face obtains more accurate focusing area, is more quickly completed focus process.
Terminal provided by the present invention is rapidly performed by pair in target to be captured region using the background for highlighting shooting Coke is rapidly completed and takes pictures so as to be accurately obtained the position of target to be captured, so bringing great side to user Just.The application practicability is stronger, can effectively improve user experience.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with it is other The difference of embodiment, same or similar part may refer to each other between each embodiment.For being filled disclosed in embodiment For setting, since it is corresponded to the methods disclosed in the examples, so being described relatively simple, related place is referring to method part Explanation.
Professional further appreciates that, unit described in conjunction with the examples disclosed in the embodiments of the present disclosure And algorithm steps, can be realized with electronic hardware, computer software, or a combination of the two, in order to clearly demonstrate hardware and The interchangeability of software generally describes each exemplary composition and step according to function in the above description.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.
The step of method described in conjunction with the examples disclosed in this document or algorithm, can directly be held with hardware, processor The combination of capable software module or the two is implemented.Software module can be placed in random access memory (RAM), memory, read-only deposit Reservoir (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technology In any other form of storage medium well known in field.
Image pickup method provided by the present invention, device and mobile terminal are described in detail above.It answers herein With a specific example illustrates the principle and implementation of the invention, the explanation of above example is only intended to help to manage Solve method and its core concept of the invention.It should be pointed out that for those skilled in the art, not departing from , can be with several improvements and modifications are made to the present invention under the premise of the principle of the invention, these improvement and modification also fall into this hair In bright scope of protection of the claims.

Claims (8)

1. a kind of image pickup method characterized by comprising
The shooting instruction of user's triggering is received, current shooting picture is obtained;
Extract the profile information of target to be captured in the current shooting picture;
The unlatching for receiving user's input lightens the triggering command of background mode automatically, lightens background mode into automatic;
By the brightness regulation of the current shooting picture to predetermined luminance value, to lighten the background of the target to be captured;
It is focused according to the profile information to the target to be captured, completes the shooting to the current shooting picture.
2. image pickup method as described in claim 1, which is characterized in that by the brightness regulation of the current shooting picture to pre- If before brightness value further include:
The brightness value for obtaining the current shooting picture, when the brightness value is lower than predetermined luminance threshold value, into lightening automatically Background mode or output prompt the user to open the prompt information for lightening background mode.
3. image pickup method as claimed in claim 1 or 2, which is characterized in that described to extract in the current shooting picture wait clap The profile information for taking the photograph target includes:
Image pretreatment operation is carried out to the current shooting picture;
Feature extraction is carried out to the image Jing Guo pretreatment operation, obtains the profile information of the target to be captured.
4. image pickup method as claimed in claim 3, which is characterized in that the brightness regulation by the current shooting picture is extremely Predetermined luminance value includes:
Obtain the brightness value of the current shooting picture;
According to the corresponding relationship of the brightness value and adjustment parameter that pre-establish, by the brightness regulation of the current shooting picture to institute State predetermined luminance value.
5. a kind of filming apparatus characterized by comprising
Current shooting picture obtains module, for receiving the shooting instruction of user's triggering, obtains current shooting picture;
Profile extraction module, for extracting the profile information of target to be captured in the current shooting picture;
Active module, for before by the brightness regulation to predetermined luminance value of the current shooting picture, receiving user's input Unlatching lighten the triggering command of background mode automatically, into lightening background mode automatically;Or it obtains the current shooting and draws The brightness value in face lightens described in background mode or output prompt when the brightness value is lower than predetermined luminance threshold value into automatic User opens the prompt information for lightening background mode;
Adjustment module, for by the brightness regulation of the current shooting picture to predetermined luminance value, to lighten the mesh to be captured Target background;
Shooting module is completed for being focused according to the profile information to the target to be captured to the current shooting The shooting of picture.
6. filming apparatus as claimed in claim 5, which is characterized in that the profile extraction module includes:
Pretreatment unit, for carrying out image pretreatment operation to the current shooting picture;
Extraction unit obtains the profile of the target to be captured for carrying out feature extraction to the image Jing Guo pretreatment operation Information.
7. filming apparatus as claimed in claim 6, which is characterized in that the adjustment module includes:
Brightness value acquiring unit, for obtaining the brightness value of the current shooting picture;
Unit is adjusted, for the corresponding relationship according to the brightness value pre-established and adjustment parameter, by the current shooting picture Brightness regulation to the predetermined luminance value.
8. a kind of mobile terminal, which is characterized in that including the described in any item filming apparatus of such as claim 5 to 7.
CN201610852188.1A 2016-09-26 2016-09-26 A kind of image pickup method, device and mobile terminal Active CN106161970B (en)

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