CN107454342A - A kind of control method, mobile terminal and computer-readable recording medium - Google Patents
A kind of control method, mobile terminal and computer-readable recording medium Download PDFInfo
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- CN107454342A CN107454342A CN201710761953.3A CN201710761953A CN107454342A CN 107454342 A CN107454342 A CN 107454342A CN 201710761953 A CN201710761953 A CN 201710761953A CN 107454342 A CN107454342 A CN 107454342A
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- brightness
- current environment
- light exposure
- mobile terminal
- colour temperature
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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
- H04N23/70—Circuitry for compensating brightness variation in the scene
- H04N23/71—Circuitry for evaluating the brightness variation
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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
- H04N23/80—Camera processing pipelines; Components thereof
- H04N23/84—Camera processing pipelines; Components thereof for processing colour signals
- H04N23/88—Camera processing pipelines; Components thereof for processing colour signals for colour balance, e.g. white-balance circuits or colour temperature control
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Abstract
The embodiment of the invention discloses a kind of control method, this method is applied to the mobile terminal with camera, and this method includes：Obtain the real-time light exposure of camera and real-time white balance parameter；According to the first mapping relations between default light exposure and ambient brightness, it is determined that the current environment brightness corresponding to light exposure in real time；According to real-time white balance parameter, it is determined that the current environment colour temperature corresponding to white balance parameter in real time；According to current environment brightness and current environment colour temperature, mobile terminal is controlled.The embodiment of the present invention also discloses a kind of mobile terminal and computer-readable recording medium simultaneously.To solve the problems, such as that control method of the prior art can not realize intelligentized control method mobile terminal, and then realize the technique effect for the intelligence degree for improving mobile terminal.
Description
Technical field
The present invention relates to electronic device field, more particularly to a kind of control method, mobile terminal and computer-readable storage
Medium.
Background technology
With the continuous progress of science and technology and electronic equipment, the species of electronic product is also more and more, and people also enjoy
The various facilities that development in science and technology is brought are arrived.In daily life, shutterbugs like recording life intermediate value with slr camera
The memory that must be collected.During taking pictures, in order to strengthen shooting effect, it is necessary to obtain ambient parameter by instrumentation, with
Referred to for shutterbugs.Such as ambient brightness is obtained by luminance test instrument, so, shutterbugs can be with based on acquisition
Ambient brightness, to set suitable acquisition parameters to be exposed, to optimize shooting effect.This artificial regulation acquisition parameters with
Although the method for control shooting effect can improve shooting effect, whole control process is stronger to the dependence of photographer, nothing
Method realizes intelligentized control method, and then reduces Consumer's Experience.It can be seen that using control method of the prior art, intelligence can not be realized
Energyization controls the effect of mobile terminal.
The content of the invention
In view of this, the embodiment of the present invention provides a kind of control method, shifting to solve problems of the prior art
Dynamic terminal and computer-readable recording medium, intelligentized control method movement can not be realized eventually to solve control method of the prior art
The problem of end, and then realize the technique effect for the intelligence degree for improving mobile terminal.
To reach above-mentioned purpose, the technical proposal of the invention is realized in this way：
In a first aspect, the embodiment of the present invention provides a kind of control method, it is described applied to the mobile terminal with camera
Method includes：Obtain the real-time light exposure of camera and real-time white balance parameter；According between default light exposure and ambient brightness
The first mapping relations, it is determined that the current environment brightness corresponding to light exposure in real time；According to real-time white balance parameter, it is determined that in real time
Current environment colour temperature corresponding to white balance parameter；According to current environment brightness and current environment colour temperature, mobile terminal is controlled.
Second aspect, the embodiment of the present invention provide a kind of mobile terminal, and the terminal includes camera；It is stored with control journey
The memory of sequence；Processor, it is configured to perform control program to perform operations described below：Obtain the real-time light exposure and reality of camera
When white balance parameter；According to the first mapping relations between default light exposure and ambient brightness, it is determined that in real time corresponding to light exposure
Current environment brightness；According to real-time white balance parameter, it is determined that the current environment colour temperature corresponding to white balance parameter in real time；According to
Current environment brightness and current environment colour temperature, control mobile terminal.
The third aspect, the embodiment of the present invention provide a kind of computer-readable recording medium, it is characterised in that the computer
Computer program is stored with readable storage medium storing program for executing, the computer program realizes above-mentioned control method when being executed by processor
Step.
The embodiment of the present invention provides a kind of control method, mobile terminal and computer-readable recording medium, wherein, should
Method is applied to the mobile terminal with camera, first, obtains the real-time light exposure of camera and real-time white balance parameter；Its
It is secondary, according to the first mapping relations between default light exposure and ambient brightness, it is determined that the current environment corresponding to light exposure in real time
Brightness；And according to real-time white balance parameter, it is determined that the current environment colour temperature corresponding to white balance parameter in real time, that is to say, that this
In inventive embodiments, current environment brightness is artificially detected without luminance test instrument, only can be with real-time by camera
Ground determines current environment brightness and current environment colour temperature, and current environment brightness and current environment colour temperature is mobile eventually as control
An important factor for end, to control mobile terminal, and then realize the technique effect of intelligentized control method mobile terminal.
Brief description of the drawings
Fig. 1 is the hardware architecture diagram for an optional mobile terminal for realizing each embodiment of the present invention；
Fig. 2 is the communication system architecture schematic diagram that mobile terminal provided in an embodiment of the present invention can operate；
Fig. 3 is the first schematic flow sheet of control method provided in an embodiment of the present invention；
Fig. 4 is the first system user interface schematic diagram provided in an embodiment of the present invention；
Fig. 5 is second of system user interface schematic diagram provided in an embodiment of the present invention；
Fig. 6 is camera applications interface schematic diagram provided in an embodiment of the present invention；
Fig. 7 is the structural representation of mobile terminal provided in an embodiment of the present invention.
Embodiment
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 follow-up description, the suffix using such as " module ", " part " or " unit " for representing element is only
Be advantageous to the explanation of the present invention, itself there is no a specific meaning.Therefore, " module ", " part " or " unit " can mix
Ground uses.
Mobile terminal can be implemented in a variety of manners.For example, the mobile terminal described in the present invention can be included such as
Mobile phone, tablet personal computer, notebook computer, palm PC, personal digital assistant (Personal Digital Assistant,
PDA), portable media player (Portable Media Player, PMP), guider, wearable device, intelligent hand
The mobile terminals such as ring, pedometer, and the fixed terminal such as digital TV, desktop computer.
It will be illustrated in subsequent descriptions by taking mobile terminal as an example, it will be appreciated by those skilled in the art that except special
Outside 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, its hardware architecture diagram for a kind of mobile terminal of each embodiment of the realization present invention, the shifting
Dynamic terminal 100 can include：RF (Radio Frequency, radio frequency) unit 101, WiFi module 102, audio output unit
103rd, A/V (audio/video) input block 104, sensor 105, display unit 106, user input unit 107, interface unit
108th, the part 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 form the restriction to mobile terminal, and mobile terminal can be included than illustrating more or less parts,
Either combine some parts or different parts 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, the reception and transmission of signal, specifically, by base station
Downlink information receive after, handled to processor 110；In addition, up data are sent to base station.Generally, radio frequency unit 101
Including but not limited to antenna, at least one amplifier, transceiver, coupler, low-noise amplifier, duplexer etc..In addition, penetrate
Frequency unit 101 can also be communicated by radio communication with network and other equipment.Above-mentioned radio 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, WCDMA), TD-SCDMA (Time Division-Synchronous Code
Division Multiple Access, TD SDMA), FDD-LTE (Frequency Division
Duplexing-Long Term Evolution, FDD 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, browse webpage and access streaming video etc., it has provided the user wireless broadband internet and accessed.Although Fig. 1 shows
Go out WiFi module 102, but it is understood that, it is simultaneously not belonging to must be configured into for mobile terminal, completely can be according to need
To be omitted in the essential scope for do not change 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, by radio frequency unit 101 or WiFi module 102 it is receiving or
It is sound that the voice data stored in memory 109, which is converted into audio signal and exported,.Moreover, audio output unit 103
The audio output related to the specific function that mobile terminal 100 performs can also be provided (for example, call signal receives sound, disappeared
Breath receives sound etc.).Audio output unit 103 can include loudspeaker, buzzer etc..
A/V input blocks 104 are used to receive audio or video signal.A/V input blocks 104 can include graphics processor
(Graphics Processing Unit, GPU) 1041 and microphone 1042, graphics processor 1041 is in video acquisition mode
Or the static images or the view data of video obtained in image capture mode by image capture apparatus (such as camera) are carried out
Reason.Picture frame after processing may be displayed on display unit 106.Picture frame after the processing of graphics processor 1041 can be deposited
Storage is transmitted 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 (voice) data after processing can
To be converted to the form output that mobile communication base station can be sent to via radio frequency unit 101 in the case of telephone calling model.
Microphone 1042 can implement various types of noises and eliminate (or suppression) algorithm to eliminate (or suppression) in reception and send sound
Caused noise or interference during frequency signal.
Mobile terminal 100 also 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 transducer, wherein, ambient light sensor can be according to environment
The light and shade of light adjusts the brightness of display panel 1061, and proximity transducer can close when mobile terminal 100 is moved in one's ear
Display panel 1061 and/or backlight.As one kind of motion sensor, accelerometer sensor can detect in all directions (general
For three axles) size of acceleration, size and the direction of gravity are can detect that when static, the application available for identification 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 ray sensor, will not be repeated here.
Display unit 106 is used for the information for showing the information inputted by user or being supplied to user.Display unit 106 can wrap
Display panel 1061 is included, liquid crystal display (Liquid Crystal Display, LCD), Organic Light Emitting Diode can be used
Forms such as (Organic Light-Emitting Diode, OLED) configures display panel 1061.
User input unit 107 can be used for the numeral or character information for receiving input, and produce the use with mobile terminal
The key signals input that family is set and function control is relevant.Specifically, user input unit 107 may include contact panel 1071 with
And other input equipments 1072.Contact panel 1071, also referred to as touch-screen, collect touch operation of the user on or near it
(for example user uses any suitable objects or annex such as finger, stylus on contact panel 1071 or in contact panel 1071
Neighbouring operation), and corresponding attachment means are driven according to formula set in advance.Contact 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
Contact coordinate is converted into, then gives processor 110, and the order sent of reception processing device 110 and can be performed.In addition, can
To realize contact panel 1071 using polytypes such as resistance-type, condenser type, infrared ray and surface acoustic waves.Except contact panel
1071, user input unit 107 can also include other input equipments 1072.Specifically, other input equipments 1072 can wrap
Include but be not limited to physical keyboard, in function key (such as volume control button, switch key etc.), trace ball, mouse, action bars etc.
One or more, do not limit herein specifically.
Further, contact panel 1071 can cover display panel 1061, detect thereon when contact panel 1071 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, contact panel 1071 and display panel
1061 be the part independent as two to realize the input of mobile terminal and output function, but in certain embodiments, can
Input and the output function of mobile terminal are realized so that contact panel 1071 and display panel 1061 is integrated, is not done herein specifically
Limit.
Interface unit 108 is connected the interface that can pass through as at least one external device (ED) with mobile terminal 100.For example,
External device (ED) can include wired or wireless head-band earphone port, external power source (or battery charger) port, wired or nothing
Line FPDP, 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 transmitting data between mobile terminal 100 and external device (ED).
Memory 109 can be used for storage software program and various data.Memory 109 can mainly include 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 can 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 whole mobile terminal of connection
Individual part, by running or performing the software program and/or module that are stored in memory 109, and call and be stored in storage
Data in device 109, the various functions and processing data of mobile terminal are performed, so as 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
Device is managed, wherein, application processor mainly handles operating system, user interface and application program etc., and modem processor is main
Handle radio communication.It is understood that above-mentioned modem processor can not also be integrated into processor 110.
Mobile terminal 100 can also include the power supply 111 (such as battery) to all parts power supply, it is preferred that power supply 111
Can be logically contiguous by power-supply management system and processor 110, so as to realize management charging by power-supply management system, put
The function such as electricity and power managed.
Although Fig. 1 is not shown, mobile terminal 100 can also will not be repeated here including bluetooth module etc..
For the ease of understanding the embodiment of the present invention, the communications network system being based on below to the mobile terminal of the present invention enters
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
Unite as the LTE system of universal mobile communications technology, the UE that the LTE system includes communicating connection successively (User Equipment, is used
Family equipment) 201, E-UTRAN (Evolved UMTS Terrestrial Radio Access Network, evolved UMTS lands
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 terminal 100, and here is omitted.
E-UTRAN202 includes eNodeB2021 and other eNodeB2022 etc..Wherein, eNodeB2021 can be by returning
Journey (backhaul) (such as X2 interface) is connected with other eNodeB2022, and eNodeB2021 is connected to EPC203,
ENodeB2021 can provide UE201 to EPC203 access.
EPC203 can 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 between EPC203, there is provided carrying and connection management.HSS2032 is all to manage for providing some registers
Such as the function of attaching position register (not shown) etc, and preserve some and used about service features, data rate etc.
The special information in family.All customer data can be transmitted by SGW2034, and PGW2035 can provide UE 201 IP
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 provided available strategy and charging control decision-making with charge execution function unit (not shown) for strategy.
IP operation 204 can 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 following new network system etc., do not limit herein.
Based on above-mentioned mobile terminal hardware configuration and communication system, each embodiment of the inventive method is proposed.
Embodiment one
Based on foregoing embodiment, the present embodiment provides a kind of control method, and the executive agent of the control method is movement
Terminal, at least one camera is provided with the mobile terminal, and automatic exposure can be carried out by camera, to obtain shooting
The real-time light exposure of head and real-time white balance parameter.
In actual applications, above-mentioned camera can include complementary metal oxide semiconductor (Complementary
Metal Oxide Semiconductor, CMOS) image sensing module, or Charged Couple (Charge-coupled
Device, CCD) image sensing module, it is, of course, also possible to including other kinds of image sensing module.Here, the present invention is implemented
Example is not specifically limited.
In actual applications, the mobile terminal can be with front camera either rear camera or simultaneously specific
Forward and backward smart mobile phone, tablet personal computer, digital camera for putting camera etc. has the electronic equipment of camera function, it is of course also possible to
To be other, the embodiment of the present invention is not specifically limited.
Further, the function that the control method is realized can pass through the processor caller code in mobile terminal
To realize, certain program code can be stored in computer-readable storage medium, it is seen then that and the mobile terminal comprises at least camera,
Processor and storage medium.In actual applications, the control method can apply in any image taking scene, and will be current
An important factor for ambient brightness is used as control mobile terminal with current environment colour temperature, to control mobile terminal.
The control method provided in the embodiment of the present invention is illustrated with reference to above-mentioned mobile terminal.
The embodiment of the present invention provides a kind of control method, applied in above-mentioned mobile terminal, shown in Figure 3, this method
Including：
S301：Obtain the real-time light exposure of camera and real-time white balance parameter；
Here, can be by camera during the camera automatic exposure operation with automatic exposure function
Software records automatic exposure real-time light exposure and real-time white balance parameter.Further, camera can be according to record
Content directly obtains real-time light exposure and real-time white balance parameter.In addition, camera may be used also during automatic exposure is run
To pass through the automatic exposure gain of the software records automatic exposure in camera, then, camera can also be according in record
Hold the automatic exposure gain for directly obtaining automatic exposure.
In the present embodiment, using above-mentioned mobile terminal as mobile phone, the real-time light exposure and reality for obtaining camera are illustrated
When white balance parameter process.Exemplarily, it is shown in Figure 4, system user interface 41 is shown on mobile phone, when user wants
When being taken pictures, camera applications 42 are clicked on, open camera applications interface, and call camera, enter mode of operation in camera
Afterwards, can be to get the real-time light exposure of camera and real-time white balance parameter.
S302：According to the first mapping relations between default light exposure and ambient brightness, it is determined that in real time corresponding to light exposure
Current environment brightness；
Here, brief description is carried out to camera possessed automatic exposure function first.The work of automatic exposure is former
Reason is a degeneration factor, and camera is first brought into operation with initial exposure amount, and then the processing module of camera calculates output
The image brightness values of image, if it find that image brightness values are higher than object brightness, then progressively reduce light exposure, if it find that image
Brightness value is less than object brightness, then is stepped up light exposure, until output image image brightness values close to object brightness untill.
It can therefore be seen that the image brightness values of camera output image have two factors, one is ambient brightness (or object scene
Light luminance), another is exactly light exposure.Therefore, in the present embodiment, default light exposure and environment are stored with camera
The first mapping relations between brightness, so, can be with based on above-mentioned first after the real-time light exposure of camera is got
Mapping relations, easily determine the current environment brightness corresponding to real-time light exposure.
Further, in the present embodiment, the real-time light exposure of camera and real-time white balance parameter are being obtained in S302
Before, the control method of offer of the present invention can also be established according to following two ways default light exposure and ambient brightness it
Between the first mapping relations.
First way, the first step, obtain the multiple image corresponding to a default light exposure；Second step, based on multiframe figure
Picture, calculate image brightness values corresponding to default light exposure；3rd step, according to image brightness values, preset light exposure and camera
Automatic exposure gain, determine ambient brightness；4th step, according to default light exposure and ambient brightness, generate default light exposure with
The first mapping relations between ambient brightness.Further, above-mentioned 3rd step can also specifically include：Calculate default light exposure with
The product of the automatic exposure gain of camera, obtain exposing constant；According to the ratio of image brightness values and exposure constant, ring is determined
Border brightness.
In actual applications, the above-mentioned first step can be repeated to the 4th step, with obtain multiple default light exposures with it is every
Ambient brightness corresponding to individual default light exposure, according to each default light exposure and corresponding ambient brightness, generate default exposure
The first mapping relations between amount and ambient brightness.It is it should be noted that right obtaining a default light exposure institute using camera
During the multiple image answered, ten frames corresponding to the default light exposure can be typically obtained to the image of 30 frames or so,
And the image brightness values of each two field picture are calculated, and then the average value of all image brightness values is calculated as the light exposure
Corresponding image brightness values；Or filter out maximum image brightness value in all image brightness values and minimum image is bright
Angle value, and be averaging based on the multiple images brightness value after screening, to obtain image brightness values corresponding to the default light exposure.Enter
One step, the process of default the first mapping relations between light exposure and ambient brightness is being established using above-mentioned first way
In, the sampling interval of default light exposure is more intensive, and the first mapping relations subsequently obtained are more accurate, the application scenarios that can be covered
Also it is more.It can be seen that in above-mentioned first way, first, the automatic exposure function having using camera, light exposure is obtained
With the time for exposure corresponding to image brightness values；Secondly, it is camera according to the light exposure of acquisition, image brightness values and filming apparatus
Automatic exposure gain determine ambient brightness；Then the directly automatic exposure function that has using filming apparatus calculates ring
Border brightness.It can be seen that in the control method that the embodiment of the present invention is provided, terminal can automatically determine current environment brightness, from
And the problem of integrating special hardware circuit in the terminal to detect the complexity of increase terminal caused by current environment brightness is kept away,
And then cost is saved, reach the effect for the complexity for reducing mobile terminal.
The second way, in laboratory environment, i.e., without other light sources interference environment in, using with automatic exposure
The camera and optics illumination photometer of function are tested, and establish the first mapping relations list.Here, first, using optics illumination
Ambient brightness L under meter measurement and recording laboratory environmentE, obtain the N group automatic exposure of camera in laboratory environments
Light exposure and corresponding image brightness values, it is such as (E1, L1)、(E2, L2)、(E3, L3)、……(EN, LN)；Secondly, according to KN=EN
×LE/LNN number of K values are calculated, then ask the average value of N number of K values to obtain automatic exposure enhancing COEFFICIENT K, K=(K1+K2+…
KN)/N, wherein, ENFor the light exposure of N groups, LNFor the image brightness values of N groups, KNStrengthen system for the automatic exposure of N groups
Number；Further, after the automatic exposure for calculating camera strengthens coefficient, according to equation below computing environment brightness LE, LE=
L/ (K × E), wherein, L is image brightness values, and E is light exposure, and K is that the automatic exposure enhancing coefficient of camera is that automatic exposure increases
Benefit.With first method similarly, first between light exposure and ambient brightness is being preset using the foundation of above-mentioned second method
During mapping relations, preset that the sampling interval of light exposure is more intensive, and the first mapping relations subsequently obtained are more accurate, can be with
The application scenarios of covering are also more.
Certainly, in addition to the above two method provided using the present embodiment establishes the first mapping relations list, also
The first mapping relations list can be established using other methods, be defined by the control method for realizing the present invention, the present invention is implemented
Example herein and is not specifically limited.
Here, after the first mapping relations are obtained, light exposure in first mapping relations generally according to setting in advance
Fixed order is arranged, and a line in the first mapping relations list is stored with uniquely default light exposure and the default light exposure
Corresponding ambient brightness.For example, it will be arranged according to light exposure according to order from small to large.It should be noted that above-mentioned row
Row are a kind of implementation, and the embodiment of the present invention herein and is not specifically limited.
Further, because light exposure arranges in the first mapping relations according to predefined procedure, such as described above
The gradual incremental order of light exposure, then, according to default the first mapping relations between light exposure and ambient brightness, it is determined that
During current environment brightness corresponding to real-time light exposure, can first optional a line is as original position from table, then,
According to the difference of the default light exposure of selected original position and real-time light exposure, be on the occasion of or negative value, it is determined that from selected
Beginning, position upwardly or downwardly searched for.That is, if the default light exposure of selected original position is more than real-time light exposure,
From (default light exposure the reduces direction) search upwards of selected original position, to determine that the current environment corresponding to real-time light exposure is bright
Degree；If the default light exposure of selected original position is less than real-time light exposure, (light exposure is preset downwards from selected original position
Augment direction) search, to determine the current environment brightness corresponding to real-time light exposure；If the default exposure of selected original position
Amount is equal to real-time light exposure, it is determined that the current environment brightness corresponding to real-time light exposure is environment corresponding to the default light exposure
Brightness.In this way, during the current environment brightness corresponding to real-time light exposure is determined according to the method described above, due to not being pre-
If being scanned in light exposure gamut, so as to reduce hunting zone, search efficiency is improved.
In addition, in default the first mapping relations between light exposure and ambient brightness of basis, it is determined that light exposure institute is right in real time
During the current environment brightness answered, when real-time light exposure is between the first default light exposure and the second default light exposure
When, according to the first mapping relations, obtain first environment brightness corresponding to the first default light exposure and the second default light exposure pair
The second environment brightness answered；The average of first environment brightness and second environment brightness is defined as current environment brightness.
S303：According to real-time white balance parameter, it is determined that the current environment colour temperature corresponding to white balance parameter in real time.；
Here, can be directly according to above-mentioned white in real time flat in S303 after S301 gets real-time white balance parameter
Weighing apparatus parameter determines current environment colour temperature corresponding to the real-time white balance parameter.Above-mentioned white balance parameter includes R gains, G gains
With B gains.It is possible to further based on R gains, G gains and B gains, calculate real-time white balance parameter.
In the present embodiment, above-mentioned S303 can also further include：Searched according to real-time white balance parameter default white
The second mapping relations between balance parameters and environment colour temperature, it is determined that the current environment colour temperature corresponding to white balance parameter in real time.
For example, above-mentioned default environment colour temperature can be environment colour temperature corresponding to different scenes, for example environment colour temperature is corresponding to night scene
2850k.It is determined that after environment colour temperature, environment colour temperature can be based on and determine default white balance parameter, here, be based on ambient color
Temperature determines that the method for default white balance parameter can be gray world method, perfect reflection, colour temperature passage method etc..Need what is illustrated
It is, to determining that the method for default white balance parameter is not specifically limited based on environment colour temperature in the embodiment of the present invention.For example, pass through
The above method can determine that the default white balance parameter under 2850K environment colour temperature is Rgain=1.11, Bgain=2, Ggain=
1.It is possible to further based on different scenes, set corresponding ambient color gently to preset white balance parameter；Then, it is determined that environment
The second mapping relations between colour temperature and default white balance parameter.So, can be with base after real-time white balance parameter is got
The second mapping relations between white balance parameter are gently preset in above-mentioned ambient color, rapidly find real-time white balance parameter institute
Corresponding current environment colour temperature.
It should be noted that during determining that ambient color gently presets the corresponding relation between white balance parameter, environment
The sampling interval of colour temperature is more intensive, and the second mapping relations subsequently obtained are more accurate, and the application scenarios that can be covered are also more.
S304：According to current environment brightness and current environment colour temperature, mobile terminal is controlled.
Here, after current environment brightness and current environment colour temperature is determined, mobile terminal can be based on current environment
Brightness and environment colour temperature are made and are adaptively adjusted.For example, during user is taken pictures using mobile terminal, if user is now
In outdoor, and sunlight is more dazzling, i.e., when current environment brightness is higher, user does not often see the screen of Chu's mobile terminal,
It is difficult to which whether the picture for determining oneself to want shooting is selected by camera, it can not more ensure shooting quality.
Mobile terminal in the present embodiment, also tool automatically adjust screen display brightness and show the function of colour temperature.Example
Property, it is shown in Figure 5, in the display parameters adjustment interface of mobile terminal, including three regulating keys：First regulating key
51, for being turned on and off the display brightness of mobile terminal and the automatic regulation function of display colour temperature.It is for example, right in " automatic " institute
In the adjustment region answered, by the first regulating key 51 from high order end opening position, low order end opening position is slid into, is now then opened certainly
Dynamic regulatory function, mobile terminal can be adjusted in real time with the current environment brightness and current environment colour temperature determined based on camera
The display brightness and display colour temperature of whole display screen, to realize the purpose of adjustment display screen in shooting process so that screen
Brightness and colour temperature are capable of the change of more preferable reaction environment light, with ensure human eye can more preferable view screen, improve relaxing for user
Appropriateness.Second regulating key 52, for adjusting the display brightness of mobile terminal.3rd regulating key 53, it is mobile whole for adjusting
The display colour temperature at end.Here, after the first regulating key 51 is opened, if user still wants to the preference according to oneself, further
To display brightness and display colour temperature be finely adjusted, can also mobile terminal automatically adjust display brightness and display colour temperature after,
The first regulating key of manual-lock 51, by the first regulating key 51 from low order end opening position, high order end opening position is slid into, now
Automatic regulation function is then closed, then, it is sliding that user can carry out the second regulating key 52 and/or the 3rd regulating key 53 left and right
It is dynamic, to realize the fine setting of display parameters, to improve Consumer's Experience.
In the present embodiment, above-mentioned S304 controls mobile terminal according to current environment brightness and current environment colour temperature, can be with
Including：Judge whether current environment brightness meets the 3rd preparatory condition；, will if current environment brightness meets the 3rd preparatory condition
The display brightness of mobile terminal is configured to default display brightness；Judge whether current environment colour temperature meets the 4th preparatory condition；If
When current environment colour temperature does not meet four preparatory conditions, then the display colour temperature of mobile terminal is configured to default display colour temperature.
Here, when user is being taken pictures at night using camera applications, determining to work as front ring corresponding to real-time light exposure
After current environment colour temperature corresponding to border brightness and real-time white balance parameter, first, it is determined that whether current environment brightness accords with
Close the 3rd preparatory condition, the 3rd preparatory condition is used to characterize ambient brightness to be dark, if to meet the 3rd pre- for current environment brightness
If condition, then the display brightness of mobile terminal being configured to default display brightness, default display brightness is less than current display brightness,
I.e. in the case where ambient light is dark, display brightness is reduced, avoids display brightness too high so that user is difficult to direct vision screens.Enter
One step, judge whether current environment colour temperature meets the 4th preparatory condition, the 4th preparatory condition is for characterizing environment colour temperature
Cool colour, if current environment colour temperature does not meet four preparatory conditions, such as current environment colour temperature is warm colour, then by mobile terminal
Display colour temperature is configured to default display colour temperature, and default display colour temperature can be muted color temperature or warm colour temperature, equivalent to opening
Night eyeshield pattern, improve users'comfort.
As shown in the above, the control method that the present embodiment is provided, it is first applied to the mobile terminal with camera
First, the real-time light exposure of camera and real-time white balance parameter are obtained；Secondly, according between default light exposure and ambient brightness
First mapping relations, it is determined that the current environment brightness corresponding to light exposure in real time；And according to real-time white balance parameter, it is determined that in real time
Current environment colour temperature corresponding to white balance parameter, that is to say, that artificial without luminance test instrument in the embodiment of the present invention
Ground detect current environment brightness, only by camera can to determine current environment brightness and current environment colour temperature in real time, and
An important factor for using current environment brightness and current environment colour temperature as mobile terminal is controlled, to control mobile terminal, Jin Ershi
The technique effect of existing intelligentized control method mobile terminal.
Further, in the present embodiment, above-mentioned camera can be IP Camera, and now, above-mentioned S304 can be wrapped
Include：Judge whether current environment brightness meets the first preparatory condition, and judge whether current environment colour temperature meets the second default bar
Part；If current environment brightness does not meet the first preparatory condition and when current environment colour temperature does not meet the second preparatory condition, control
The mobile terminal outputting alarm information.
, can be real-time by the IP Camera when the camera of mobile terminal is IP Camera in the present embodiment
The current environment brightness and current environment colour temperature of monitoring objective object；Also, current environment brightness and current environment colour temperature with
When preparatory condition is not inconsistent, triggering mobile terminal is alerted, outputting alarm information, and then reminds user to make emergency processing.
In actual applications, provided control method of the present invention, the monitoring ring with outdoor indoors can be applied
In border.Here, made further instructions by taking application indoors as an example.For example IP Camera can be carried out to indoor environment
Monitoring in real time, under normal circumstances, indoor ambient brightness is L10, indoor environment colour temperature is S10.Here, L10And S10Can be with
It is the parameter that user is voluntarily set based on actual conditions, can also be the Default Value parameter that IP Camera carries.Above-mentioned
During IP Camera real time execution, control method provided by the present invention can be based on, according to real-time light exposure and reality
When white balance parameter determine indoor current environment brightness L11With current environment colour temperature S11.Further, the processing of mobile terminal
Unit is by above-mentioned L11With L10It is compared, if L11More than L10, i.e., current environment brightness, which is more than, presets ambient brightness；Then, it is mobile
The processing unit of terminal is by above-mentioned S11With S10It is compared, if S11More than S10, i.e., current environment colour temperature, which is more than, presets ambient color
Temperature；Now, the processing unit of mobile terminal determines that current environment brightness and current environment colour temperature do not meet preparatory condition, explanation
The real time environment abnormal parameters of current indoor, it is most likely that there occurs dangerous accident, if possible there occurs fire, triggers
The change of ambient brightness and environment colour temperature.Now, the Alarm Unit of mobile terminal can be based on real time environment brightness and ambient color
Temperature is alerted.In this way, user after warning information is obtained, can immediately check and make emergency trouble shooting measures.
In the present embodiment, exemplarily, shown in Figure 6, user opens related to IP Camera on mobile phone
After, in the display interface 61 of application, reality that user can be monitored by network from long-range real time inspection IP Camera
When scene information 62, so, on the one hand can to monitoring scene carry out video capture, on the other hand be provided with IP Camera
Mobile terminal is also based on real time environment brightness and the environment colour temperature obtained, and it is pre- to judge whether current environment brightness meets first
If condition and judge whether current environment colour temperature meets the second preparatory condition, and it is pre- in current environment brightness not meet first
If condition and when current environment colour temperature does not meet the second preparatory condition, then outputting alarm information, and then, transmit and be shown in real time
On the mobile phone of user.For example, warning information 63 " environmental abnormality, asking timely processing ", and then quick timely early warning is made.When
So, mobile terminal can also by way of voice outputting alarm information, or shake etc. by way of outputting alarm information,
To the mode of outputting alarm information and it is not especially limited in the present embodiment.It should be noted that above-mentioned first preparatory condition with
Second preparatory condition can according to it is different at the time of, the factor such as different scene is configured.
Embodiment two
Based on same inventive concept, the present embodiment provides a kind of mobile terminal.It is corresponding that the mobile terminal can apply to Fig. 3
Embodiment provide a kind of control method in.
Fig. 7 is the structural representation of the terminal in the embodiment of the present invention, and shown in Figure 7, the mobile terminal 70 includes：Take the photograph
As first 700, memory 701 (correspond in Fig. 1 109), processor 702 (correspond in Fig. 1 110), it is stored in memory
On 701 and the computer program 703 (i.e. control program) that can be run on processor 702, processor 702 perform computer program
Following steps are realized when 703：Obtain the real-time light exposure of camera and real-time white balance parameter；According to default light exposure and environment
The first mapping relations between brightness, it is determined that the current environment brightness corresponding to light exposure in real time；According to real-time white balance parameter,
It is determined that the current environment colour temperature corresponding to real-time white balance parameter；According to current environment brightness and current environment colour temperature, control moves
Dynamic terminal.
Further, above-mentioned camera is IP Camera, and according to current environment brightness and current environment colour temperature, control moves
The step of dynamic terminal, it can also be executed by processor, to realize following steps：It is default to judge whether current environment brightness meets first
Condition, and judge whether current environment colour temperature meets the second preparatory condition；If current environment brightness does not meet the first preparatory condition
And current environment colour temperature is not when meeting the second preparatory condition, then outputting alarm information.
Further, according to current environment brightness and current environment colour temperature, the step of controlling mobile terminal, can also be processed
Device performs, to realize following steps：Judge whether current environment brightness meets the 3rd preparatory condition；If current environment brightness meets
3rd preparatory condition, then the display brightness of mobile terminal is configured to default display brightness；Judge whether current environment colour temperature accords with
Close the 4th preparatory condition；If current environment colour temperature does not meet four preparatory conditions, the display colour temperature of mobile terminal is configured
For default display colour temperature.
Further, before the real-time light exposure of camera and real-time white balance parameter is obtained, above-mentioned computing device
Following steps can be also realized during said procedure：Obtain the multiple image corresponding to default light exposure；Based on multiple image, calculate pre-
If image brightness values corresponding to light exposure；According to the automatic exposure gain of image brightness values, default light exposure and camera, really
Determine ambient brightness；According to default light exposure and ambient brightness, default the first mapping between light exposure and ambient brightness of generation is closed
System.
Further, according to the first mapping relations between default light exposure and ambient brightness, it is determined that light exposure institute in real time
The step of corresponding current environment brightness, it can also be executed by processor, to realize following steps：When real-time light exposure is between first
When between default light exposure and the second default light exposure, according to the first mapping relations, the is obtained corresponding to the first default light exposure
Second environment brightness corresponding to one ambient brightness and the second default light exposure；By first environment brightness and second environment brightness
Average is defined as current environment brightness.
In actual applications, above-mentioned processor can by central processing unit (Central Processing Unit, CPU),
GPU, microprocessor (Micro Processor Unit, MPU), digital signal processor (Digital Signal
Processor, DSP) or field programmable gate array (Field Programmable Gate Array, FPGA) etc. realize.
It need to be noted that be：The description of above terminal embodiment item, it is similar with above method description, has same
Embodiment of the method identical beneficial effect, therefore do not repeat.For the ins and outs not disclosed in terminal embodiment of the present invention,
Those skilled in the art refer to the description of the inventive method embodiment and understand, to save length, repeat no more here.
Embodiment three
Based on same inventive concept, the present embodiment provides a kind of computer-readable recording medium, can apply to above-mentioned one
Mobile terminal in individual or multiple embodiments, above computer readable storage medium storing program for executing are stored with one or more program, on
Stating one or more program can be by one or more computing device, to realize following steps：Obtain the real-time of camera
Light exposure and real-time white balance parameter；According to the first mapping relations between default light exposure and ambient brightness, it is determined that exposing in real time
Current environment brightness corresponding to light quantity；According to real-time white balance parameter, it is determined that working as front ring corresponding to white balance parameter in real time
Border colour temperature；According to current environment brightness and current environment colour temperature, mobile terminal is controlled.
Further, above-mentioned camera is IP Camera, can also be realized during above-mentioned computing device said procedure following
Step：Judge whether current environment brightness meets the first preparatory condition, and it is default to judge whether current environment colour temperature meets second
Condition；If current environment brightness does not meet the first preparatory condition and when current environment colour temperature does not meet the second preparatory condition, defeated
Go out warning information.
Further, following steps can be also realized during above-mentioned computing device said procedure：Judging current environment brightness is
It is no to meet the 3rd preparatory condition；If current environment brightness meets the 3rd preparatory condition, the display brightness of mobile terminal is configured
To preset display brightness；Judge whether current environment colour temperature meets the 4th preparatory condition；If current environment colour temperature does not meet the 4th
During preparatory condition, then the display colour temperature of mobile terminal is configured to default display colour temperature.
Further, before the real-time light exposure of camera and real-time white balance parameter is obtained, said one or more
Individual program can be by one or more computing device, to realize following steps：Obtain the multiframe figure corresponding to default light exposure
Picture；Based on multiple image, image brightness values corresponding to default light exposure are calculated；According to image brightness values, default light exposure and
The automatic exposure gain of camera, determines ambient brightness；According to default light exposure and ambient brightness, default light exposure and ring are generated
The first mapping relations between the brightness of border.
Further, following steps can be also realized during above-mentioned computing device said procedure：When real-time light exposure is between
When between one default light exposure and the second default light exposure, according to the first mapping relations, obtain corresponding to the first default light exposure
Second environment brightness corresponding to first environment brightness and the second default light exposure；By first environment brightness and second environment brightness
Average be defined as current environment brightness.
It should be noted that above computer readable storage medium storing program for executing can be read-only storage (Read Only Memory,
ROM), programmable read only memory (Programmable Read-Only Memory, PROM), erasable programmable is read-only deposits
Reservoir (Erasable Programmable Read-Only Memory, EPROM), Electrically Erasable Read Only Memory
(Electrically Erasable Programmable Read-Only Memory, EEPROM), magnetic random access store
Device (Ferromagnetic Random Access Memory, FRAM), flash memory (Flash Memory), magnetic surface are deposited
The memories such as reservoir, CD or read-only optical disc (Compact Disc Read-Only Memory, CD-ROM)；It can also be bag
One of above-mentioned memory or the various electronic equipments of any combination are included, such as mobile phone, computer, tablet device, individual digital
Assistant etc..
It should be noted that herein, term " comprising ", "comprising" 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 not only include those key elements, and
And also include the other element being not expressly set out, or also include for this process, method, article or device institute inherently
Key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that including this
Other identical element also be present in the process of key element, method, article or device.
The embodiments of the present invention are for illustration only, do 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 such understanding, technical scheme is substantially done to prior art in other words
Going out the part of contribution can be embodied in the form of software product, and the computer software product is stored in a storage medium
In (such as ROM/RAM, magnetic disc, CD), including some instructions to cause a station terminal (can be mobile phone, computer, service
Device, air conditioner, or network equipment etc.) perform method described in each embodiment of the present invention.
Embodiments of the invention are described above in conjunction with accompanying drawing, but the invention is not limited in above-mentioned specific
Embodiment, above-mentioned embodiment is only schematical, rather than restricted, one of ordinary skill in the art
Under the enlightenment of the present invention, in the case of present inventive concept and scope of the claimed protection is not departed from, it can also make a lot
Form, these are belonged within the protection of the present invention.
Claims (10)
1. a kind of control method, it is characterised in that applied to the mobile terminal with camera, methods described includes：
Obtain the real-time light exposure of camera and real-time white balance parameter；
According to the first mapping relations between default light exposure and ambient brightness, determine current corresponding to the light exposure in real time
Ambient brightness；
According to the real-time white balance parameter, the current environment colour temperature corresponding to white balance parameter in real time is determined；
According to the current environment brightness and the current environment colour temperature, the mobile terminal is controlled.
2. according to the method for claim 1, it is characterised in that described according to the current environment brightness and described to work as front ring
Border colour temperature, the mobile terminal is controlled, including：
Judge whether the current environment brightness meets the first preparatory condition, and judge whether the current environment colour temperature meets
Two preparatory conditions；
If the current environment brightness does not meet the first preparatory condition and the current environment colour temperature does not meet the second preparatory condition
When, then control the mobile terminal outputting alarm information.
3. according to the method for claim 1, it is characterised in that described according to the current environment brightness and the current environment
Colour temperature, the mobile terminal is controlled, including：
Judge whether the current environment brightness meets the 3rd preparatory condition；
If the current environment brightness meets the 3rd preparatory condition, the display brightness of the mobile terminal is configured to default aobvious
Show brightness；
Judge whether the current environment colour temperature meets the 4th preparatory condition；
If the current environment colour temperature does not meet four preparatory conditions, the display colour temperature of the mobile terminal is configured to pre-
If show colour temperature.
4. according to the method for claim 1, it is characterised in that in the real-time light exposure of the acquisition camera and white in real time
Before balance parameters, methods described also includes：
Obtain the multiple image corresponding to the default light exposure；
Based on the multiple image, image brightness values corresponding to the default light exposure are calculated；
According to the automatic exposure gain of described image brightness value, the default light exposure and the camera, the ring is determined
Border brightness；
According to the default light exposure and the ambient brightness, the institute between the default light exposure and the ambient brightness is generated
State the first mapping relations.
5. according to the method for claim 4, it is characterised in that described according to described image brightness value, the default exposure
The automatic exposure gain of amount and the camera, determines the ambient brightness, including：
The default light exposure and the product of the automatic exposure gain of the camera are calculated, obtains exposing constant；
According to the ratio of described image brightness value and the exposure constant, the ambient brightness is determined.
6. according to the method for claim 1, it is characterised in that the basis it is default between light exposure and ambient brightness the
One mapping relations, the current environment brightness corresponding to light exposure in real time is determined, including：
When the light exposure in real time is between the first default light exposure and the second default light exposure, according to the described first mapping
Relation, obtain second corresponding to first environment brightness corresponding to the described first default light exposure and the second default light exposure
Ambient brightness；
The average of the first environment brightness and the second environment brightness is defined as the current environment brightness.
7. according to the method for claim 1, it is characterised in that it is described according to the real-time white balance parameter, it is determined that described
Current environment colour temperature corresponding to real-time white balance parameter, including：
Default the second mapping relations between white balance parameter and environment colour temperature are searched according to the white balance parameter in real time, it is determined that
The current environment colour temperature corresponding to white balance parameter in real time.
8. a kind of mobile terminal, it is characterised in that the mobile terminal includes：
Camera；
The memory of storing control program；
Processor, it is configured to perform the control program to perform operations described below：Obtain the camera real-time light exposure and
Real-time white balance parameter；According to the first mapping relations between default light exposure and ambient brightness, the real-time light exposure is determined
Corresponding current environment brightness；According to the real-time white balance parameter, working as corresponding to the white balance parameter in real time is determined
Preceding environment colour temperature；According to the current environment brightness and the current environment colour temperature, the mobile terminal is controlled.
9. mobile terminal according to claim 8, it is characterised in that it is described according to the current environment brightness and it is described work as
Preceding environment colour temperature, the step of controlling the mobile terminal, can also be by the computing device, to realize following steps：
Judge whether the current environment brightness meets the first preparatory condition, and judge whether the current environment colour temperature meets
Two preparatory conditions；
If the current environment brightness does not meet the first preparatory condition and the current environment colour temperature does not meet the second preparatory condition
When, then control the mobile terminal outputting alarm information.
10. a kind of computer-readable recording medium, it is characterised in that the computer-readable medium storage has control program, institute
State the step of control method as any one of claim 1 to 7 is realized when control program is executed by processor.
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| CN112863450A (en) * | 2019-11-26 | 2021-05-28 | 奇景光电股份有限公司 | Backlight control device |
| CN113556477A (en) * | 2021-09-23 | 2021-10-26 | 南昌龙旗信息技术有限公司 | Environment brightness determination method, device, medium, product and camera |
| CN113556477B (en) * | 2021-09-23 | 2021-12-14 | 南昌龙旗信息技术有限公司 | Ambient brightness determination method and device, medium and camera |
| CN113869291A (en) * | 2021-12-02 | 2021-12-31 | 杭州魔点科技有限公司 | Method, system, device and medium for adjusting human face exposure based on ambient brightness |
| CN113869291B (en) * | 2021-12-02 | 2022-03-04 | 杭州魔点科技有限公司 | Method, system, device and medium for adjusting human face exposure based on ambient brightness |
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