CN108600647A - Shooting preview method, mobile terminal and storage medium - Google Patents
Shooting preview method, mobile terminal and storage medium Download PDFInfo
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- CN108600647A CN108600647A CN201810823186.9A CN201810823186A CN108600647A CN 108600647 A CN108600647 A CN 108600647A CN 201810823186 A CN201810823186 A CN 201810823186A CN 108600647 A CN108600647 A CN 108600647A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/62—Control of parameters via user interfaces
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/63—Control of cameras or camera modules by using electronic viewfinders
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Abstract
The invention discloses a kind of shooting preview method, mobile terminal and storage medium, the method is applied to dual-screen mobile terminal, and the dual-screen mobile terminal includes that camera, the first screen and the second screen, this method include：The first image is acquired by the camera and is shown in first screen；Monitor whether current shooting pattern is portrait mode of figure；If current shooting pattern is portrait mode of figure, the second image is extracted from described first image, second image includes character image；By the second image real-time display in second screen, for the person's of being taken preview.The present invention improves the luxury aspect of character image in the second screen by extracting the second image from the first image, by the second image real-time display for the person's of being taken preview.
Description
Technical field
The present invention relates to a kind of technical field of image processing more particularly to shooting preview method, mobile terminal and storages to be situated between
Matter.
Background technology
Currently, dual-screen mobile terminal becomes to become more and more popular by its advantage on content is shown.It is with Dual-band Handy Phone
Example, Dual-band Handy Phone refer to the mobile phone for possessing two screens of front and back, by rotating axis connection among two screen, are passed through
The rotation of rotary shaft can be by two screen splicings together, and the design of this Dual-band Handy Phone can allow user to use a terminal
Upper two screens realize and show more content informations using limited fuselage size, meet the demand for experience of consumer.
However, when user shoots portrait photographs or personage's video by mobile terminals such as mobile phones, the person of being taken can not preview
Image, also can not intuitively knowing oneself, in place whether, whether action is graceful, especially shoots more people for expression in photo or video
It is more difficult to guarantee all persons of being taken when photo or video and all presents best state, thus the character image taken is difficult to
Reach satisfied luxury aspect.
Invention content
A kind of shooting preview method of present invention offer, mobile terminal and storage medium, it is intended to improve the character image of shooting
Luxury aspect.
To achieve the above object, the present invention provides a kind of shooting preview method, and the method is applied to dual-screen mobile terminal,
The dual-screen mobile terminal includes camera, the first screen and the second screen, the method includes：
The first image is acquired by the camera and is shown in first screen；
Monitor whether current shooting pattern is portrait mode of figure；
If current shooting pattern is portrait mode of figure, the second image, second image are extracted from described first image
Including character image；
By the second image real-time display in second screen, for the person's of being taken preview.
Optionally, described to further include after the step of extracting the second image in described first image：
According to distance between photographer and the dual-screen mobile terminal, by second image scaling to pre-set zoom ratio
Example.
Optionally, described according to distance between photographer and the dual-screen mobile terminal, extremely by second image scaling
The step of pre-set zoom ratio includes：
Pass through distance between the distance-sensor measurement person of being taken and the dual-screen mobile terminal；
According to the default mapping relations of the distance and scaling, corresponding scaling is determined；
Second image is zoomed in and out according to the scaling.
Optionally, it is described by the second image real-time display second screen the step of after further include：
It identifies second image, extracts the feature of second image, the feature includes that environmental characteristic and personage are special
Sign；
The first shooting prompt corresponding with the feature is obtained by shooting hints model trained in advance, by described second
First shooting prompt described in screen display, for the person's of being taken adjustment action and/or expression.
Optionally, the first shooting hints model by training in advance obtains shooting corresponding with the feature and carries
Show, described in second screen display first shooting prompt the step of include：
Shooting hints model is trained by machine learning algorithm；
The environmental characteristic of extraction and character features are inputted into the shooting hints model, exported by the shooting training pattern
The first shooting prompt corresponding with the feature, the first shooting prompt include figure action prompt and facial expression prompt；
The first shooting prompt is exported by second screen.
Optionally, the step of whether the monitoring current shooting pattern is portrait mode of figure include：
Judge whether there is character image in described first image；
If not having character image in described first image, it is portrait mode of figure to judge current shooting pattern not；
If there is character image in described first image, further judge whether the character image is in first figure
The focal position of picture；
If the character image is in the focal position of described first image, judge that current shooting pattern is portrait mould
Formula；
If conversely, the character image is not in the focal position of described first image, current shooting pattern is judged
It is not portrait mode of figure.
Optionally, described the step of the second image is extracted from described first image, includes：
Identify one or more of the described first image person of being taken；
Centered on one or more of photographers, extraction includes the figure map of one or more of persons of being taken
Picture；
Using the character image as the second image.
Optionally, the method further includes：
It identifies described first image, extracts the feature of described first image, the feature includes that environmental characteristic and personage are special
Sign；
The second shooting prompt corresponding with the feature is obtained by shooting hints model trained in advance, by described first
Screen output second shooting prompts, and the second shooting prompt includes that mode of composition prompt and image parameter prompt, for
Photographer adjusts mode of composition, image parameter and shooting angle；
When the luxury aspect of described first image all reaches preset requirement, described first image is preserved.
Further, to achieve the above object, the present invention also provides a kind of dual-screen mobile terminal, the mobile terminal includes
Memory, processor and the shooting preview program being stored on the memory, the shooting preview program are transported by processor
When row, the step of realizing shooting preview method as described above.
Further, to achieve the above object, the present invention also provides a kind of computer readable storage medium, the computers
It is stored with shooting preview program on readable storage medium storing program for executing, shooting as described above is realized when the shooting preview is run by processor
The step of method for previewing.
The present invention acquires the first image by the camera and is shown in first screen by above technical scheme；
Monitor whether current shooting pattern is portrait mode of figure；If current shooting pattern is portrait mode of figure, carried from described first image
The second image is taken, second image includes character image；By the second image real-time display in second screen, for
The person's of being taken preview.As a result, by extracting the second image from the first image, by the second image real-time display in the second screen,
For the person's of being taken preview, the luxury aspect of character image is improved.
Description of the drawings
A kind of hardware architecture diagram of Fig. 1 mobile terminals of each embodiment to realize the present invention；
Fig. 2 is a kind of communications network system Organization Chart provided in an embodiment of the present invention；
Fig. 3 is the flow diagram of shooting preview method first embodiment of the present invention；
Fig. 4 is the schematic diagram of a scenario of one embodiment of shooting preview method of the present invention；
Fig. 5 is the flow diagram of shooting preview method second embodiment of the present invention；
Fig. 6 is the flow diagram of shooting preview method 3rd embodiment of the present invention；
Fig. 7 is the schematic diagram of a scenario of another embodiment of shooting preview method of the present invention.
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific implementation mode
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
In subsequent description, using for indicating that the suffix of such as " module ", " component " or " unit " of element is only
The explanation for being conducive to the present invention, itself does not have a specific meaning.Therefore, " module ", " component " or " unit " can mix
Ground uses.
Terminal can be implemented in a variety of manners.For example, terminal described in the present invention may include such as mobile phone, tablet
Computer, laptop, palm PC, personal digital assistant (Personal Digital Assistant, PDA), portable
The shiftings such as media player (Portable Media Player, PMP), navigation device, wearable device, Intelligent bracelet, pedometer
The fixed terminals such as dynamic terminal, and number TV, desktop computer.
It will be illustrated by taking mobile terminal as an example in subsequent descriptions, it will be appreciated by those skilled in the art that in addition to special
Except element for moving purpose, construction according to the embodiment of the present invention can also apply to the terminal of fixed type.
Referring to Fig. 1, a kind of hardware architecture diagram of its mobile terminal of each embodiment to realize the present invention, the shifting
Moving terminal 100 may include：RF (Radio Frequency, radio frequency) unit 101, WiFi module 102, audio output unit
103, A/V (audio/video) input unit 104, sensor 105, display unit 106, user input unit 107, interface unit
108, the components such as memory 109, processor 110 and power supply 111.It will be understood by those skilled in the art that shown in Fig. 1
Mobile terminal structure does not constitute the restriction to mobile terminal, and mobile terminal may include components more more or fewer than diagram,
Either combine certain components or different components arrangement.
The all parts of mobile terminal are specifically introduced with reference to Fig. 1：
Radio frequency unit 101 can be used for receiving and sending messages or communication process in, signal sends and receivees, specifically, by base station
Downlink information receive after, to processor 110 handle；In addition, the data of uplink are sent to base station.In general, radio frequency unit 101
Including but not limited to antenna, at least one amplifier, transceiver, coupler, low-noise amplifier, duplexer etc..In addition, penetrating
Frequency unit 101 can also be communicated with network and other equipment by radio communication.Above-mentioned wireless communication can use any communication
Standard or agreement, including but not limited to GSM (Global System of Mobile communication, global system for mobile telecommunications
System), GPRS (General Packet Radio Service, general packet radio service), CDMA2000 (Code
Division Multiple Access 2000, CDMA 2000), WCDMA (Wideband Code Division
Multiple Access, wideband code division multiple access), TD-SCDMA (Time Division-Synchronous Code
Division Multiple Access, TD SDMA), FDD-LTE (Frequency Division
Duplexing-Long Term Evolution, frequency division duplex long term evolution) and TDD-LTE (Time Division
Duplexing-Long Term Evolution, time division duplex long term evolution) etc..
WiFi belongs to short range wireless transmission technology, and mobile terminal can help user to receive and dispatch electricity by WiFi module 102
Sub- mail, browsing webpage and access streaming video etc., it has provided wireless broadband internet to the user and has accessed.Although Fig. 1 shows
Go out WiFi module 102, but it is understood that, and it is not belonging to must be configured into for mobile terminal, it completely can be according to need
It to be omitted in the range for the essence for not changing invention.
Audio output unit 103 can be in call signal reception pattern, call mode, record mould in mobile terminal 100
When under the isotypes such as formula, speech recognition mode, broadcast reception mode, it is that radio frequency unit 101 or WiFi module 102 are received or
The voice data stored in memory 109 is converted into audio signal and exports to be sound.Moreover, audio output unit 103
The relevant audio output of specific function executed with mobile terminal 100 can also be provided (for example, call signal receives sound, disappears
Breath receives sound etc.).Audio output unit 103 may include loud speaker, buzzer etc..
A/V input units 104 are for receiving audio or video signal.A/V input units 104 may include graphics processor
(Graphics Processing Unit, GPU) 1041 and microphone 1042, graphics processor 1041 is in video acquisition mode
Or the image data of the static images or video obtained by image capture apparatus (such as camera) in image capture mode carries out
Reason.Treated, and picture frame may be displayed on display unit 106.Through graphics processor 1041, treated that picture frame can be deposited
Storage is sent in memory 109 (or other storage mediums) or via radio frequency unit 101 or WiFi module 102.Mike
Wind 1042 can connect in telephone calling model, logging mode, speech recognition mode etc. operational mode via microphone 1042
Quiet down sound (voice data), and can be voice data by such acoustic processing.Audio that treated (voice) data can
To be converted to the format output that can be sent to mobile communication base station via radio frequency unit 101 in the case of telephone calling model.
Microphone 1042 can implement various types of noises elimination (or inhibition) algorithms and send and receive sound to eliminate (or inhibition)
The noise generated during frequency signal or interference.
Mobile terminal 100 further includes at least one sensor 105, such as optical sensor, motion sensor and other biographies
Sensor.Specifically, optical sensor includes ambient light sensor and proximity sensor, wherein ambient light sensor can be according to environment
The light and shade of light adjusts the brightness of display panel 1061, and proximity sensor can close when mobile terminal 100 is moved in one's ear
Display panel 1061 and/or backlight.As a kind of motion sensor, accelerometer sensor can detect in all directions (general
For three axis) size of acceleration, size and the direction of gravity are can detect that when static, can be used to identify the application of mobile phone posture
(such as horizontal/vertical screen switching, dependent game, magnetometer pose calibrating), Vibration identification correlation function (such as pedometer, percussion) etc.；
The fingerprint sensor that can also configure as mobile phone, pressure sensor, iris sensor, molecule sensor, gyroscope, barometer,
The other sensors such as hygrometer, thermometer, infrared sensor, details are not described herein.
Display unit 106 is for showing information input by user or being supplied to the information of user.Display unit 106 can wrap
Display panel 1061 is included, liquid crystal display (Liquid Crystal Display, LCD), Organic Light Emitting Diode may be used
Forms such as (Organic Light-Emitting Diode, OLED) configure display panel 1061.
User input unit 107 can be used for receiving the number or character information of input, and generate the use with mobile terminal
Family is arranged and the related key signals input of function control.Specifically, user input unit 107 may include touch panel 1071 with
And other input equipments 1072.Touch panel 1071, also referred to as touch screen collect user on it or neighbouring touch operation
(for example user uses any suitable objects or attachment such as finger, stylus on touch panel 1071 or in touch panel 1071
Neighbouring operation), and corresponding attachment device is driven according to preset formula.Touch panel 1071 may include touch detection
Two parts of device and touch controller.Wherein, the touch orientation of touch detecting apparatus detection user, and detect touch operation band
The signal come, transmits a signal to touch controller；Touch controller receives touch information from touch detecting apparatus, and by it
It is converted into contact coordinate, then gives processor 110, and order that processor 110 is sent can be received and executed.In addition, can
To realize touch panel 1071 using multiple types such as resistance-type, condenser type, infrared ray and surface acoustic waves.In addition to touch panel
1071, user input unit 107 can also include other input equipments 1072.Specifically, other input equipments 1072 can wrap
It includes but is not limited in physical keyboard, function key (such as volume control button, switch key etc.), trace ball, mouse, operating lever etc.
It is one or more, do not limit herein specifically.
Further, touch panel 1071 can cover display panel 1061, when touch panel 1071 detect on it or
After neighbouring touch operation, processor 110 is sent to determine the type of touch event, is followed by subsequent processing device 110 according to touch thing
The type of part provides corresponding visual output on display panel 1061.Although in Fig. 1, touch panel 1071 and display panel
1061 be to realize the function that outputs and inputs of mobile terminal as two independent components, but in certain embodiments, can
The function that outputs and inputs of mobile terminal is realized so that touch panel 1071 and display panel 1061 is integrated, is not done herein specifically
It limits.
Interface unit 108 be used as at least one external device (ED) connect with mobile terminal 100 can by interface.For example,
External device (ED) may include wired or wireless headphone port, external power supply (or battery charger) port, wired or nothing
Line data port, memory card port, the port for connecting the device with identification module, audio input/output (I/O) end
Mouth, video i/o port, ear port etc..Interface unit 108 can be used for receiving the input from external device (ED) (for example, number
It is believed that breath, electric power etc.) and the input received is transferred to one or more elements in mobile terminal 100 or can be with
For the transmission data between mobile terminal 100 and external device (ED).
Memory 109 can be used for storing software program and various data.Memory 109 can include mainly storing program area
And storage data field, wherein storing program area can storage program area, application program (such as the sound needed at least one function
Sound playing function, image player function etc.) etc.；Storage data field can store according to mobile phone use created data (such as
Voice data, phone directory etc.) etc..In addition, memory 109 may include high-speed random access memory, can also include non-easy
The property lost memory, a for example, at least disk memory, flush memory device or other volatile solid-state parts.
Processor 110 is the control centre of mobile terminal, utilizes each of various interfaces and the entire mobile terminal of connection
A part by running or execute the software program and/or module that are stored in memory 109, and calls and is stored in storage
Data in device 109 execute the various functions and processing data of mobile terminal, to carry out integral monitoring to mobile terminal.Place
Reason device 110 may include one or more processing units；Preferably, processor 110 can integrate application processor and modulatedemodulate is mediated
Manage device, wherein the main processing operation system of application processor, user interface and application program etc., modem processor is main
Processing wireless communication.It is understood that above-mentioned modem processor can not also be integrated into processor 110.
In addition, in mobile terminal 100 shown in Fig. 1, processor 110 is for calling what is stored in memory 109 to take pictures
Previewer, to execute following operation：
The first image is acquired by the camera and is shown in first screen；
Monitor whether current shooting pattern is portrait mode of figure；
If current shooting pattern is portrait mode of figure, the second image, second image are extracted from described first image
Including character image；
By the second image real-time display in second screen, for the person's of being taken preview.
Further, processor 110 is for calling the previewer of taking pictures stored in memory 109 also to execute following behaviour
Make：
According to distance between photographer and the dual-screen mobile terminal, by second image scaling to pre-set zoom ratio
Example.
Further, processor 110 is for calling the previewer of taking pictures stored in memory 109 also to execute following behaviour
Make：
Pass through distance between the distance-sensor measurement person of being taken and the dual-screen mobile terminal；
According to the default mapping relations of the distance and scaling, corresponding scaling is determined；
Second image is zoomed in and out according to the scaling.
Further, processor 110 is for calling the previewer of taking pictures stored in memory 109 also to execute following behaviour
Make：
It identifies second image, extracts the feature of second image, the feature includes that environmental characteristic and personage are special
Sign；
The first shooting prompt corresponding with the feature is obtained by shooting hints model trained in advance, by described second
First shooting prompt described in screen display, for the person's of being taken adjustment action and/or expression.
Further, processor 110 is for calling the previewer of taking pictures stored in memory 109 also to execute following behaviour
Make：
Shooting hints model is trained by machine learning algorithm；
The environmental characteristic of extraction and character features are inputted into the shooting hints model, exported by the shooting training pattern
The first shooting prompt corresponding with the feature, the first shooting prompt include figure action prompt and facial expression prompt；
The first shooting prompt is exported by second screen.
Further, processor 110 is for calling the previewer of taking pictures stored in memory 109 also to execute following behaviour
Make：
Judge whether there is character image in described first image；
If not having character image in described first image, it is portrait mode of figure to judge current shooting pattern not；
If there is character image in described first image, further judge whether the character image is in first figure
The focal position of picture；
If the character image is in the focal position of described first image, judge that current shooting pattern is portrait mould
Formula；
If conversely, the character image is not in the focal position of described first image, current shooting pattern is judged
It is not portrait mode of figure.
Further, processor 110 is for calling the previewer of taking pictures stored in memory 109 also to execute following behaviour
Make：
Identify one or more of the described first image person of being taken；
Centered on one or more of photographers, extraction includes the figure map of one or more of persons of being taken
Picture；
Using the character image as the second image.
Further, processor 110 is for calling the previewer of taking pictures stored in memory 109 also to execute following behaviour
Make：
It identifies described first image, extracts the feature of described first image, the feature includes that environmental characteristic and personage are special
Sign；
The second shooting prompt corresponding with the feature is obtained by shooting hints model trained in advance, by described first
Screen output second shooting prompts, and the second shooting prompt includes that mode of composition prompt and image parameter prompt, for
Photographer adjusts mode of composition, image parameter and shooting angle；
When the luxury aspect of described first image all reaches preset requirement, described first image is preserved.
In addition, above-mentioned mobile terminal 100 can also include the power supply 111 (such as battery) powered to all parts, preferably
, power supply 111 can be logically contiguous by power-supply management system and processor 110, is managed to be realized by power-supply management system
The functions such as reason charging, electric discharge and power managed.
Although Fig. 1 is not shown, mobile terminal 100 can also be including bluetooth module etc., and details are not described herein.
Embodiment to facilitate the understanding of the present invention, below to the communications network system that is based on of mobile terminal of the present invention into
Row description.
Referring to Fig. 2, Fig. 2 is a kind of communications network system Organization Chart provided in an embodiment of the present invention, the communication network system
System is the LTE system of universal mobile communications technology, which includes communicating UE (User Equipment, the use of connection successively
Family equipment) (the lands Evolved UMTS Terrestrial Radio Access Network, evolved UMTS 201, E-UTRAN
Ground wireless access network) 202, EPC (Evolved Packet Core, evolved packet-based core networks) 203 and operator IP operation
204。
Specifically, UE201 can be above-mentioned mobile terminal 100, and details are not described herein again.
E-UTRAN202 includes eNodeB2021 and other eNodeB2022 etc..Wherein, eNodeB2021 can be by returning
Journey (backhaul) (such as X2 interface) is connect with other eNodeB2022, and eNodeB2021 is connected to EPC203,
ENodeB2021 can provide the access of UE201 to EPC203.
EPC203 may include MME (Mobility Management Entity, mobility management entity) 2031, HSS
(Home Subscriber Server, home subscriber server) 2032, other MME2033, SGW (Serving Gate Way,
Gateway) 2034, PGW (PDN Gate Way, grouped data network gateway) 2035 and PCRF (Policy and
Charging Rules Function, policy and rate functional entity) 2036 etc..Wherein, MME2031 be processing UE201 and
The control node of signaling, provides carrying and connection management between EPC203.HSS2032 is all to manage for providing some registers
Such as the function of home location register (not shown) etc, and some are preserved in relation to use such as service features, data rates
The dedicated information in family.All customer data can be sent by SGW2034, and PGW2035 can provide the IP of UE 201
Address is distributed and other functions, and PCRF2036 is strategy and the charging control strategic decision-making of business data flow and IP bearing resources
Point, it selects and provides available strategy and charging control decision with charge execution function unit (not shown) for strategy.
IP operation 204 may include internet, Intranet, IMS (IP Multimedia Subsystem, IP multimedia
System) or other IP operations etc..
Although above-mentioned be described by taking LTE system as an example, those skilled in the art it is to be understood that the present invention not only
Suitable for LTE system, be readily applicable to other wireless communication systems, such as GSM, CDMA2000, WCDMA, TD-SCDMA with
And the following new network system etc., it does not limit herein.
Based on above-mentioned terminal hardware structure and communications network system, SIM card initialization accelerated method of the present invention is proposed
Each embodiment.
It is the flow diagram of shooting preview method first embodiment of the present invention with reference to Fig. 3, Fig. 3.
In the present embodiment, the shooting preview method includes the following steps：
Step S101 acquires the first image by the camera and is shown in first screen；
In the present embodiment, the shooting preview method is applied to dual-screen mobile terminal, and the dual-screen mobile terminal includes packet
Include camera, the first screen and the second screen.Since the dual-screen mobile terminal is gathered around simultaneously, there are two screens, can meet user not
Same demand.After the camera function of the dual-screen mobile terminal is opened, the first image is acquired by the camera and is shown in
First screen, for photographer's preview.
The dual-screen mobile terminal can be the mobile network appliances such as mobile phone, tablet computer, smart camera.
Step S102, whether monitoring current shooting pattern is portrait mode of figure；
In general, mobile terminal is default, there are many screening-modes, including landscape configuration, portrait mode of figure, panning mode etc., use
The default screening-mode that family can be needed when needing to shoot photo or video by presetting exposal model selection.However it is not all
User when being shot using mobile terminal, can all be pre-selected suitable screening-mode, thus the present embodiment proposes prison
The step of whether current shooting pattern is portrait mode of figure surveyed.
In this implementation, the step of whether the monitoring current shooting pattern is portrait mode of figure, includes：Judge first figure
Whether there is character image as in；If not having character image in described first image, it is portrait to judge current shooting pattern not
Pattern；If there is character image in described first image, further judge whether the character image is in described first image
Focal position；If the character image is in the focal position of described first image, judge that current shooting pattern is portrait
Pattern；If conversely, the character image is not in the focal position of described first image, judge that current shooting pattern is not
Portrait mode of figure.
Specifically, identifying the character image in described first image first, it is distributed according to the color range in described first image
And textural characteristics, judge whether there is character image in described first image according to characteristics of human body, the characteristics of human body include face,
Head dummy, body line, human body proportion etc..If not having the characteristics of human body in described first image, illustrate first figure
There is no character image as in, and then judges that current shooting pattern is not portrait mode of figure；If having the people in described first image
One or more of body characteristics, then further judge whether the character image is in the focal position of described first image.
Specifically, the focal position of described first image is first determined whether, if in the touch control operation region of first screen
It detects preset focusing touch control operation, then judges using the selected position of the focusing touch control operation as focal position；If not
First screen touch control operation region detection to preset focusing touch control operation, then judge whether the character image is located
In acquiescence focal position, the acquiescence focal position can be the center of first screen or other suitable positions.
If the character image is in the focal position of described first image, judge that current shooting pattern is portrait mode of figure；If conversely,
The character image is not in the focal position of described first image, then it is portrait mode of figure to judge current shooting pattern not.
In other embodiments, if there is character image in described first image, further analyze the character image with
The mode of composition of described first image, if the mode of composition meets preset Aesthetic Standards, then it is assumed that then judge current shooting
Pattern is portrait mode of figure.Alternatively, the camera of the mobile terminal have automatic focusing function, can automatically by focus be aligned face or
Human body, at this point, can be using the position of auto-focusing as the position where the first image.
In other embodiments, it if there is character image in described first image, further analyzes in described first image
The person of being taken at a distance from the mobile terminal, pre-set threshold value, if the distance be more than or equal to the threshold value, then it is assumed that
Current exposal model is not personage's pattern, if the distance is less than the threshold value, then it is assumed that current exposal model is personage's pattern.
Specifically, the threshold value can be 50 meters, 75 meters, 100 meters etc..The distance can pass through the distance perspective built in the mobile terminal
Device is answered to measure, the distance-sensor includes infrared inductor, ultrasonic sensing device, laser inductor etc..Furthermore it is also possible to adopt
Ranging is carried out with the machine vision method of monocular ranging.
Step S103 extracts the second image if current shooting pattern is portrait mode of figure from described first image, described
Second image includes character image；
In the present embodiment, second image and described first image simultaneous display.Second image is from described
Extract real-time in first image, second image include mainly character image, can also include the corresponding portion of character image
Point or whole background image.Described the step of the second image is extracted from described first image includes：Identify described first image
One or more of the person of being taken；Centered on one or more of photographers, extraction includes one or more of quilts
The character image of photographer；Using the character image as the second image.
Specifically, if current shooting pattern is portrait mode of figure, according to the character contour in described first image, institute is extracted
There is the second image including character contour.Second image is all or part of in described first image.
It in other embodiments, can be in a manner of directly being replicated with image by the character image copying and saving in the first image
At the second image.Alternatively, directly described first image is simultaneously displayed in the second screen.
In the present embodiment, if current shooting pattern is not portrait mode of figure, according to preset non-portrait flow, inspection
The touch control operation for surveying touch control operation region, executes the corresponding operational order of the touch control operation, or detect and identify voice, executes
The corresponding operational order of the voice.In not being the screening-mode of portrait mode of figure, second screen can directly display
One image, or any image is not shown.
Step S104, by the second image real-time display in second screen, for the person's of being taken preview.
In the present embodiment, after extracting the second image, then by the second image real-time display in second screen, institute
The second screen is stated towards the person of being taken, for the person's of being taken preview image, according to preview image adjustment action or expression.
It is the schematic diagram of a scenario of one embodiment of shooting preview method of the present invention with reference to Fig. 4, Fig. 4.In the first screen display institute
While stating the first image, the second image described in second screen display.
Specifically, for single image, the person of being taken due to can not preview image, can only be after photographing again from picture library
It browses and has shot image, often shot repeatedly to shoot a nice picture repeatedly, the person of being taken may be caused tired
Endlessly, and photographer also has impatient mood.In the present embodiment, the person of being taken can be in shooting preparation stage preview graph
Picture, thus the problems in preview image can be found in time, action or expression adjustment are made in time, shoot satisfied image.
Specifically, for the group photo image of two or more persons of being taken, since multiple persons of being taken are difficult to simultaneously
It is ready, group photo image often has individual persons of being taken not and be for optimum state, if passing through second screen display the
Two images can be reminded mutually between the person that is not then taken, and cooperate, can quickly shoot all satisfied photograph of all photographers
Piece.Moreover, when if a group traveling together needs to shoot group photo, generally require to look for passerby's help shooting temporarily, if proposing using the present embodiment
Image preview method, then can in second the second image of screen preview, after mobile terminal being fixed, pass through be delayed clap
It takes the photograph or the method for acoustic control shooting independently shoots group photo image.
Further, it is also possible to which described first image or the second image are uploaded to image display, described image, which is shown, to be set
It is standby to be connect with the mobile terminal communication, show that equipment divides described first image or second image by described image
Analysis.
The present embodiment through the above scheme, acquires the first image by the camera and is shown in first screen；Prison
Survey whether current shooting pattern is portrait mode of figure；If current shooting pattern is portrait mode of figure, extracted from described first image
Second image, second image includes character image；By the second image real-time display in second screen, for quilt
Photographer's preview.As a result, by extracting the second image from the first image, by the second image real-time display in the second screen, with
For the person's of being taken preview, the luxury aspect of character image is improved.
It is the flow diagram of finger scan method second embodiment of the present invention with reference to Fig. 5, Fig. 5.It is real based on above-mentioned first
Apply example, the present embodiment and above-mentioned first embodiment difference lies in：
It is described to further include after the step of extracting the second image in described first image：
Step S1031, according to distance between photographer and the dual-screen mobile terminal, by second image scaling to pre-
If scaling.
In the present embodiment, described according to distance between photographer and the dual-screen mobile terminal, by second image
The step of zooming to pre-set zoom ratio include：By between the distance-sensor measurement person of being taken and the dual-screen mobile terminal
Distance；According to the default mapping relations of the distance and scaling, corresponding scaling is determined；According to the scaling
Second image is zoomed in and out.The scaling is character image size and figure map in the first image in the second image
As the ratio of size, i.e., relative to the first image, the amplification factor of second image.
Specifically, pass through distance between the distance-sensor measurement person of being taken and the dual-screen mobile terminal, the distance
Inductor includes infrared inductor, ultrasonic sensing device, laser inductor etc..Furthermore it is also possible to using the machine of monocular ranging
Visible sensation method carries out ranging.The default mapping relations of the distance and scaling after the distance are obtained, determines and corresponds to
Scaling.
Usually, distance can be according to the image size and distance that average human eye can be seen clearly with the mapping relations of scaling
Relationship is set, for example, when distance is less than 1m between the person of being taken and the dual-screen mobile terminal, the scaling is set as
1；When the scaling is set as 2 ... by distance when 1m is between 2m between the person of being taken and the dual-screen mobile terminal
When distance is more than 10m between the person of being taken and the dual-screen mobile terminal, the scaling is set as current mobile terminal
Maximum scaling multiple, the maximum scaling multiple is different according to specific mobile terminal, such as the scaling is
5,8,10,15 etc..
The present embodiment through the above scheme, acquires the first image by the camera and is shown in first screen；Prison
Survey whether current shooting pattern is portrait mode of figure；If current shooting pattern is portrait mode of figure, extracted from described first image
Second image, second image includes character image；It, will be described according to distance between photographer and the dual-screen mobile terminal
Second image scaling is to pre-set zoom ratio；By the second image real-time display in second screen, for the person of being taken
Preview.As a result, by extracting the second image from the first image, by the second image real-time display in the second screen, for being clapped
The person's of taking the photograph preview improves the luxury aspect of character image.
It is the flow diagram of finger scan method 3rd embodiment of the present invention with reference to Fig. 6, Fig. 6.Based on above-mentioned first and second
Embodiment, the present embodiment and above-mentioned first and second embodiment difference lies in：
It is described by the second image real-time display second screen the step of after further include：
Step S105 identifies second image, extracts the feature of second image, the feature includes environmental characteristic
And character features；
In the present embodiment, the environmental characteristic includes intensity of illumination, environmental form, judges whether need according to intensity of illumination
It includes interior, seashore, high mountain etc. to want light filling, the environmental form.The character features include build, shape of face, dress ornament etc..
Step S106 obtains the first shooting corresponding with the feature by shooting hints model trained in advance and prompts,
The first shooting prompt described in second screen display, for the person's of being taken adjustment action and/or expression.
In the present embodiment, shooting hints model is trained by machine learning algorithm；By the environmental characteristic of extraction and personage
Feature inputs the shooting hints model, such as can collect nice picture sample in advance, and the nice picture sample includes a large amount of
Nice picture；It identifies the nice picture sample, obtains nice picture feature, the feature includes that character features and environment are special
Sign, such as layout, pixel, brightness, facial expression, figure action and image background；According to the nice picture parameter, pass through
Machine learning algorithm obtains shooting hints model.By the shooting training pattern according to the feature of current second image, output with
The feature corresponding first shoots prompt, and the first shooting prompt includes figure action prompt and facial expression prompt；It will
The first shooting prompt is exported by second screen.
Usually, the first shooting prompt can be exported by the form of image, word or voice.If for example, root
According to character features, it is found that when personage's current action can make human body proportion not meet graceful ratio, then the person of being taken is prompted more to move
Make, and/or provides corresponding action and suggest.If according to according to environmental characteristic, finds personage's current action or expression and work as front ring
When border feature mismatches, photographer can be prompted to take other actions or expression.It is also possible that being searched from the shooting hints model
Rope and current people's feature and the matched nice picture of environmental characteristic, so that the person of being taken refers to.
In other embodiments, the method further includes：It identifies described first image, extracts the spy of described first image
Sign, the feature includes environmental characteristic and character features；It is obtained and the feature pair by shooting hints model trained in advance
The the second shooting prompt answered is prompted by first screen output, second shooting, and the second shooting prompt includes composition
Mode prompts to prompt with image parameter, so that photographer adjusts mode of composition, image parameter and shooting angle；The second count
Take the photograph prompt can be by can be exported by the form of image, word or voice.Such as the shooting hints model is according to
When the feature of first image judges that the mode of composition of described first image does not meet default aesthetic features, text can be added by arrow
The mode of word prompts photographer to change shooting angle, to reach the composition for meeting aesthetic features.In another example if current environment brightness
It is too low, then prompt photographer to improve brightness of image.
Specifically, with reference to the schematic diagram of a scenario that 7, Fig. 7 is one embodiment of shooting preview method of the present invention.In first screen
Curtain display the second shooting prompt, the second shooting prompt include mode of composition prompt and image parameter prompt；Described second
The shooting prompt of screen display first, the first shooting prompt include figure action prompt and facial expression prompt.
Further, when the luxury aspect of described first image all reaches preset requirement, described first image is preserved.Tool
Body, it can judge whether the luxury aspect of described first image reaches preset requirement by the shooting hints model, if reaching pre-
If it is required that then automatically saving described first image, in order to avoid missing nice picture, meet various candid photograph requirements, by described first image
It is stored in default path.It can also be instructed according to the deposit of photographer and preserve current first image.
In addition, all steps of described image method for previewing are suitable for video capture and photograph taking.
The present embodiment through the above scheme, is prompted, and described in utilization by the first shooting described in second screen display
The second shooting prompt, helps to improve the luxury aspect of character image described in first screen display.
The embodiment of the present invention also provides a kind of computer readable storage medium.
In the present embodiment, shooting preview program, the shooting preview quilt are stored on the computer readable storage medium
The step of processor realizes shooting preview method as described above when running.
It should be noted that herein, the terms "include", "comprise" or its any other variant are intended to non-row
His property includes, so that process, method, article or device including a series of elements include not only those elements, and
And further include other elements that are not explicitly listed, or further include for this process, method, article or device institute it is intrinsic
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including this
There is also other identical elements in the process of element, method, article or device.
The embodiments of the present invention are for illustration only, can not represent the quality of embodiment.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can add the mode of required general hardware platform to realize by software, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Based on this understanding, technical scheme of the present invention substantially in other words does the prior art
Going out the part of contribution can be expressed in the form of software products, which is stored in a storage medium
In (such as ROM/RAM, magnetic disc, CD), including some instructions are used so that a station terminal (can be mobile phone, computer, service
Device, air conditioner or network equipment etc.) execute method described in each embodiment of the present invention.
The embodiment of the present invention is described with above attached drawing, but the invention is not limited in above-mentioned specific
Embodiment, the above mentioned embodiment is only schematical, rather than restrictive, those skilled in the art
Under the inspiration of the present invention, without breaking away from the scope protected by the purposes and claims of the present invention, it can also make very much
Form, all of these belong to the protection of the present invention.
Claims (10)
1. a kind of shooting preview method, which is characterized in that the method is applied to dual-screen mobile terminal, the dual-screen mobile terminal
Including camera, the first screen and the second screen, the method includes：
The first image is acquired by the camera and is shown in first screen；
Monitor whether current shooting pattern is portrait mode of figure；
If current shooting pattern is portrait mode of figure, the second image is extracted from described first image, second image includes
Character image；
By the second image real-time display in second screen, for the person's of being taken preview.
2. according to the method described in claim 1, it is characterized in that, the step for extracting the second image from described first image
Further include after rapid：
According to distance between photographer and the dual-screen mobile terminal, by second image scaling to pre-set zoom ratio.
3. according to the method described in claim 2, it is characterized in that, described according between photographer and the dual-screen mobile terminal
Second image scaling to the step of pre-set zoom ratio includes by distance：
Pass through distance between the distance-sensor measurement person of being taken and the dual-screen mobile terminal；
According to the default mapping relations of the distance and scaling, corresponding scaling is determined；
Second image is zoomed in and out according to the scaling.
4. according to the method described in claim 1, it is characterized in that, it is described by the second image real-time display described second
Further include after the step of screen：
It identifies second image, extracts the feature of second image, the feature includes environmental characteristic and character features；
The first shooting prompt corresponding with the feature is obtained by shooting hints model trained in advance, by second screen
The first shooting prompt is shown, for the person's of being taken adjustment action and/or expression.
5. according to the method described in claim 4, it is characterized in that, described obtained by the first shooting hints model of training in advance
Corresponding with feature shooting prompt, the step of the first shooting described in second screen display prompts, include：
Shooting hints model is trained by machine learning algorithm；
The environmental characteristic of extraction and character features are inputted into the shooting hints model, by shooting training pattern output and institute
The corresponding first shooting prompt of feature is stated, the first shooting prompt includes figure action prompt and facial expression prompt；
The first shooting prompt is exported by second screen.
6. according to the method described in claim 1, it is characterized in that, whether the monitoring current shooting pattern is portrait mode of figure
Step includes：
Judge whether there is character image in described first image；
If not having character image in described first image, it is portrait mode of figure to judge current shooting pattern not；
If there is character image in described first image, further judge whether the character image is in described first image
Focal position；
If the character image is in the focal position of described first image, judge that current shooting pattern is portrait mode of figure；
If conversely, the character image is not in the focal position of described first image, judge that current shooting pattern is not
Portrait mode of figure.
7. according to the method described in claim 1, it is characterized in that, the step for extracting the second image from described first image
Suddenly include：
Identify one or more of the described first image person of being taken；
Centered on one or more of photographers, extraction includes the character image of one or more of persons of being taken；
Using the character image as the second image.
8. according to the described method of any one of claim 1-7, which is characterized in that the method further includes：
It identifies described first image, extracts the feature of described first image, the feature includes environmental characteristic and character features；
The second shooting prompt corresponding with the feature is obtained by shooting hints model trained in advance, by first screen
The second shooting prompt is exported, the second shooting prompt includes mode of composition prompt and image parameter prompt, for shooting
Person adjusts mode of composition, image parameter and shooting angle；
When the luxury aspect of described first image all reaches preset requirement, described first image is preserved.
9. a kind of dual-screen mobile terminal, which is characterized in that including memory, processor and the bat being stored on the memory
Previewer is taken the photograph, when the shooting preview program is run by processor, realizes the shooting as described in any one of claim 1-8
The step of method for previewing.
10. a kind of computer readable storage medium, which is characterized in that it is pre- to be stored with shooting on the computer readable storage medium
It lookes at program, the shooting preview method as described in any one of claim 1-8 is realized when the shooting preview is run by processor
The step of.
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