CN107911620A

CN107911620A - Definite method, terminal and the computer-readable recording medium of a kind of white balance

Info

Publication number: CN107911620A
Application number: CN201711461402.1A
Authority: CN
Inventors: 张文婷
Original assignee: Nubia Technology Co Ltd
Current assignee: Nubia Technology Co Ltd
Priority date: 2017-12-28
Filing date: 2017-12-28
Publication date: 2018-04-13

Abstract

The embodiment of the invention discloses a kind of definite method of white balance, this method applies a terminal, and this method includes：Obtain the image that the camera of terminal collects；Determine the corresponding luminance parameter of each pixel of image；Obtain the threshold value of predetermined luminance parameter；According to the threshold value of predetermined luminance parameter, the selected pixels point from each pixel；According to the rgb value of the pixel selected, calculated using default white balance algorithm, obtain the white balance of image.The embodiment of the present invention further simultaneously discloses a kind of terminal and computer-readable recording medium.The larger technical problem of aberration between the color of the image caused by the definite method of existing white balance and the color of reality is avoided, improves the visual effect of image.

Description

Definite method, terminal and the computer-readable recording medium of a kind of white balance

Technical field

The present invention relates to the definite technology of the white balance of image, more particularly to a kind of definite method of white balance, terminal and Computer-readable recording medium.

Background technology

At present, in the terminal, camera, can shadow due to being influenced be subject to light in collection environment when collecting image Ring the white balance of the image collected.

In practical applications, under dark scene or under bright scene, according to each pixel collected it is red (R, Red) green (G, Green) indigo plant (B, Blue) value, is calculated using white balance algorithm, obtains the white balance of image, however, passing through The above method, the rgb value of dark scene and the pixel of bright scene is taken into account so that the color and reality of obtained image Aberration between the color on border is larger, have impact on the effect of image；It can thus be seen that the definite method meeting of existing white balance Cause the aberration between the color of image and the color of reality larger, influence the visual effect of image.

The content of the invention

In view of this, it is a primary object of the present invention to propose that definite method, terminal and the computer of a kind of white balance can Read storage medium, it is intended to avoid existing white balance definite method can cause image color and reality color between color The larger technical problem of difference, improves the visual effect of image.

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 definite method of white balance, the method is applied to a terminal, wraps Include：Obtain the image that the camera of the terminal collects；Determine the corresponding luminance parameter of each pixel of described image；Obtain The threshold value of predetermined luminance parameter；According to the threshold value of the predetermined luminance parameter, the selected pixels point from each pixel；According to The RGB rgb value of the pixel selected, is calculated using default white balance algorithm, obtains the white flat of described image Weighing apparatus.

Alternatively, the luminance parameter is brightness value；Accordingly, the threshold value for obtaining predetermined luminance parameter, including：Obtain The threshold value of the brightness value of default dark scene is taken, and/or, the threshold value of the brightness value of the default bright scene of acquisition.

Alternatively, the threshold value according to the predetermined luminance parameter, the selected pixels point from each pixel, bag Include：The corresponding pixel of threshold value that brightness value is more than the brightness value of default dark scene is selected from each pixel；Or Person, selects the corresponding pixel of threshold value that brightness value is less than the brightness value of default bright scene from each pixel；Or Person, brightness value is selected from each pixel and is more than the threshold value for the brightness value for presetting dark scene and less than default bright field The corresponding pixel of threshold value of the brightness value of scape.

Alternatively, the luminance parameter is rgb value；Accordingly, the threshold value for obtaining predetermined luminance parameter, including：Obtain The threshold value of the rgb value of default dark scene is taken, and/or, the threshold value of the rgb value of the default bright scene of acquisition.

Alternatively, the threshold value according to the predetermined luminance parameter, the selected pixels point from each pixel, bag Include：The corresponding pixel of threshold value that rgb value is all higher than the rgb value of default dark scene is selected from each pixel；Or Person, selects the corresponding pixel of threshold value that rgb value is respectively less than the rgb value of default bright scene from each pixel；Or Person, rgb value is selected from each pixel and is all higher than presetting the threshold value of the rgb value of dark scene and is respectively less than default bright The corresponding pixel of threshold value of the rgb value of scene.

Alternatively, the threshold value of the brightness value for obtaining default dark scene, including：The model of the camera is obtained, The threshold value of the brightness value of the corresponding dark scene of the model of the camera is determined as to the brightness value of the default dark scene Threshold value；The threshold value of the brightness value for obtaining default bright scene, including：The model of the camera is obtained, is taken the photograph described As the threshold value of the brightness value of the corresponding bright scene of the model of head is determined as the threshold value of the brightness value of the default bright scene；Institute The threshold value for the rgb value for obtaining default dark scene is stated, including：The model of the camera is obtained, by the model of the camera The threshold value of the rgb value of corresponding dark scene is determined as the threshold value of the rgb value of the default dark scene；The acquisition is default bright The threshold value of the rgb value of bright field scape, including：The model of the camera is obtained, by the corresponding bright field of the model of the camera The threshold value of the rgb value of scape is determined as the threshold value of the rgb value of the default bright scene.

Alternatively, the threshold value of the brightness value for obtaining default dark scene, including：The colour temperature of described image is obtained, will The threshold value of the brightness value of the corresponding dark scene of colour temperature of described image is determined as the threshold of the brightness value of the default dark scene Value；The threshold value of the brightness value for obtaining default bright scene, including：The colour temperature of described image is obtained, by the color of described image The threshold value of the brightness value of the corresponding bright scene of temperature is determined as the threshold value of the brightness value of the default bright scene；It is described to obtain in advance If the threshold value of the rgb value of dark scene, including：The colour temperature of described image is obtained, by the corresponding dark field of the colour temperature of described image The threshold value of the rgb value of scape is determined as the threshold value of the rgb value of the default dark scene；The RGB for obtaining default bright scene The threshold value of value, including：The colour temperature of described image is obtained, by the threshold value of the rgb value of the corresponding bright scene of the colour temperature of described image It is determined as the threshold value of the rgb value of the default bright scene.

Alternatively, the threshold value of the brightness value for obtaining default dark scene, including：Receive the threshold of scene set brightness value The threshold value of the brightness value of the dark scene carried in described instruction, is determined as the brightness of the default dark scene by the instruction of value The threshold value of value；The threshold value of the brightness value for obtaining default bright scene, including：Receive the finger of the threshold value of scene set brightness value The threshold value of the brightness value of the bright scene carried in described instruction, is determined as the threshold of the brightness value of the default bright scene by order Value；The threshold value of the rgb value for obtaining default dark scene, including：The instruction of the threshold value of scene set rgb value is received, by institute State the rgb value of dark scene carried in instruction threshold value be determined as the default dark scene rgb value threshold value；It is described to obtain The threshold value of the rgb value of default bright scene is taken, including：The instruction of the threshold value of scene set rgb value is received, will be taken in described instruction The threshold value of the rgb value of the bright scene of band is determined as the threshold value of the rgb value of the default bright scene.

Second aspect, the embodiment of the present invention provide a kind of terminal, and it is total that the terminal includes processor, memory and communication Line；The communication bus is used for realization the connection communication between processor and memory；The processor is used to perform memory The definite program of the white balance of middle storage, to realize following steps：

Obtain the image that the camera of the terminal collects；Determine the corresponding brightness ginseng of each pixel of described image Number；Obtain the threshold value of predetermined luminance parameter；According to the threshold value of the predetermined luminance parameter, the selected pixels from each pixel Point；According to the RGB rgb value of the pixel selected, calculated using default white balance algorithm, obtain described image White balance.

Alternatively, the luminance parameter is brightness value, and in the threshold value for obtaining predetermined luminance parameter, the processor is also For performing the definite program of the white balance, to realize following steps：The threshold value of the brightness value of default dark scene is obtained, And/or obtain the threshold value of the brightness value of default bright scene.

Alternatively, the threshold value according to the predetermined luminance parameter, from each pixel in selected pixels point, institute The definite program that processor is additionally operable to perform the white balance is stated, to realize following steps：Selected from each pixel Brightness value is more than the corresponding pixel of threshold value of the brightness value of default dark scene；Alternatively, selected from each pixel Brightness value is less than the corresponding pixel of threshold value of the brightness value of default bright scene；Alternatively, selected from each pixel Brightness value is more than the corresponding picture of threshold value of the threshold value of the brightness value of default dark scene and the brightness value less than default bright scene Vegetarian refreshments.

Alternatively, the luminance parameter is rgb value, and in the threshold value for obtaining predetermined luminance parameter, the processor is also For performing the definite program of the white balance, to realize following steps：

The threshold value of the rgb value of default dark scene is obtained, and/or, the threshold value of the rgb value of the default bright scene of acquisition.

Alternatively, the threshold value according to the predetermined luminance parameter, from each pixel in selected pixels point, institute The definite program that processor is additionally operable to perform the white balance is stated, to realize following steps：

The corresponding pixel of threshold value that rgb value is all higher than the rgb value of default dark scene is selected from each pixel Point；Alternatively, the corresponding pixel of threshold value that rgb value is respectively less than the rgb value of default bright scene is selected from each pixel Point；It is all higher than presetting the threshold value of the rgb value of dark scene alternatively, selecting rgb value from each pixel and is respectively less than pre- If the corresponding pixel of the threshold value of the rgb value of bright scene.

Alternatively, in the threshold value of the brightness value for obtaining default dark scene, the processor is additionally operable to described in execution The definite program of white balance, to realize following steps：The model of the camera is obtained, the model of the camera is corresponding The threshold value of the brightness value of dark scene is determined as the threshold value of the brightness value of the default dark scene.

Alternatively, in the threshold value of the brightness value for obtaining default bright scene, the processor is additionally operable to described in execution The definite program of white balance, to realize following steps：The model of the camera is obtained, the model of the camera is corresponding The threshold value of the brightness value of bright scene is determined as the threshold value of the brightness value of the default bright scene.

Alternatively, in the threshold value of the rgb value for obtaining default dark scene, the processor is additionally operable to perform described white The definite program of balance, to realize following steps：The model of the camera is obtained, the model of the camera is corresponding black The threshold value of the rgb value of dark scene is determined as the threshold value of the rgb value of the default dark scene.

Alternatively, in the threshold value of the rgb value for obtaining default bright scene, the processor is additionally operable to perform described white The definite program of balance, to realize following steps：The model of the camera is obtained, the model of the camera is corresponding bright The threshold value of the rgb value of bright field scape is determined as the threshold value of the rgb value of the default bright scene.

Alternatively, in the threshold value of the brightness value for obtaining default dark scene, the processor is additionally operable to described in execution The definite program of white balance, to realize following steps：The colour temperature of described image is obtained, by the corresponding dark of the colour temperature of described image The threshold value of the brightness value of scene is determined as the threshold value of the brightness value of the default dark scene.

Alternatively, in the threshold value of the brightness value for obtaining default bright scene, the processor is additionally operable to described in execution The definite program of white balance, to realize following steps：The colour temperature of described image is obtained, the colour temperature of described image is corresponding bright The threshold value of the brightness value of scene is determined as the threshold value of the brightness value of the default bright scene.

Alternatively, in the threshold value of the rgb value for obtaining default dark scene, the processor is additionally operable to perform described white The definite program of balance, to realize following steps：The colour temperature of described image is obtained, by the corresponding dark field of the colour temperature of described image The threshold value of the rgb value of scape is determined as the threshold value of the rgb value of the default dark scene.

Alternatively, in the threshold value of the rgb value for obtaining default bright scene, the processor is additionally operable to perform described white The definite program of balance, to realize following steps：The colour temperature of described image is obtained, by the corresponding bright field of the colour temperature of described image The threshold value of the rgb value of scape is determined as the threshold value of the rgb value of the default bright scene.

Alternatively, in the threshold value of the brightness value for obtaining default dark scene, the processor is additionally operable to described in execution The definite program of white balance, to realize following steps：The instruction of the threshold value of scene set brightness value is received, will be taken in described instruction The threshold value of the brightness value of the dark scene of band is determined as the threshold value of the brightness value of the default dark scene.

Alternatively, in the threshold value of the brightness value for obtaining default bright scene, the processor is additionally operable to described in execution The definite program of white balance, to realize following steps：The instruction of the threshold value of scene set brightness value is received, will be taken in described instruction The threshold value of the brightness value of the bright scene of band is determined as the threshold value of the brightness value of the default bright scene.

Alternatively, in the threshold value of the rgb value for obtaining default dark scene, the processor is additionally operable to perform described white The definite program of balance, to realize following steps：The instruction of the threshold value of scene set rgb value is received, will be carried in described instruction Dark scene rgb value threshold value be determined as the default dark scene rgb value threshold value.

Alternatively, in the threshold value of the rgb value for obtaining default bright scene, the processor is additionally operable to perform described white The definite program of balance, to realize following steps：The instruction of the threshold value of scene set rgb value is received, will be carried in described instruction Bright scene rgb value threshold value be determined as the default bright scene rgb value threshold value.

The third aspect, the embodiment of the present invention provide a kind of computer-readable recording medium, and the computer-readable medium is deposited The definite program of white balance is contained, is realized when the definite program of the white balance is executed by processor as above-mentioned one or more real The step of applying the definite method of white balance described in example.

Definite method, terminal and the computer-readable recording medium for a kind of white balance that the embodiment of the present invention is provided, it is first First, the image that the camera of terminal collects is obtained, the corresponding luminance parameter of each pixel of image is determined, based on what is determined The corresponding luminance parameter of each pixel of image, could be aware that the dark area and bright areas of image, then, obtain default bright The threshold value of parameter is spent, further according to the threshold value of predetermined luminance parameter, the selected pixels point from each pixel so that the pixel selected Point is to be obtained by the luminance parameter of each pixel to image by screening, finally, according to the pixel obtained by screening The rgb value of point, is calculated using default white balance algorithm, obtains the white balance of image；That is, implement in the present invention In example, by obtaining the threshold value of predetermined luminance parameter, each pixel of image is screened, it is suitable to select luminance parameter Pixel, then, the rgb value of the pixel for only considering to select determines the white balance of image, does not consider not select Pixel, in this way, avoid the image caused by the definite method of existing white balance color and reality color between The larger technical problem of aberration, the true colors in image are reduced, so as to improve the visual effect of image.

Brief description of the drawings

Fig. 1 is a kind of hardware architecture diagram for the mobile terminal for realizing each embodiment of 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 the definite method of the white balance in the embodiment of the present invention one；

Fig. 4-1 is in the display schematic diagram of dark scene for the image section in the embodiment of the present invention two；

Fig. 4-2 is the display schematic diagram redefined to Fig. 4-1 after white balance in the embodiment of the present invention two；

Fig. 5-1 is in the display schematic diagram of bright scene for the image section in the embodiment of the present invention two；

Fig. 5-2 is the display schematic diagram redefined to Fig. 5-1 after white balance in the embodiment of the present invention two；

Fig. 6-1 is that the image section in the embodiment of the present invention two is in dark scene and is partially in the display of bright scene Schematic diagram；

Fig. 6-2 is the display schematic diagram redefined to Fig. 6-1 after white balance in the embodiment of the present invention two；

Fig. 7 is the structure diagram of the terminal in the embodiment of the present invention three；

Fig. 8 is the structure diagram of the computer-readable recording medium in the embodiment of the present invention four.

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 ", " component " or " unit " for representing element is only Be conducive to the explanation of the present invention, itself there is no 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 can include such as mobile phone, tablet Computer, laptop, palm PC, personal digital assistant (PDA, Personal Digital Assistant), portable Media player (PMP, Portable Media Player), guider, wearable device, Intelligent bracelet, pedometer etc. move Dynamic terminal, and the fixed terminal such as numeral 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：Radio frequency (RF, Radio Frequency) unit 101, Wireless Fidelity (WiFi, Wireless- Fidelity) module 102, audio output unit 103, A/V (audio/video) input unit 104, sensor 105, display unit 106th, the component such as user input unit 107, interface unit 108, memory 109, processor 110 and power supply 111.This area Technical staff is appreciated that the mobile terminal structure shown in Fig. 1 does not form the restriction to mobile terminal, and mobile terminal can be with Including than illustrating more or fewer components, either combining some 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, the reception and transmission of signal, specifically, by base station Downlink information receive after, handled to processor 110；In addition, by the data sending of uplink 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, penetrate Frequency unit 101 can also be communicated by wireless communication with network and other equipment.Above-mentioned wireless communication can use any communication Standard or agreement, include but not limited to global system for mobile communications (GSM, Global System of Mobile Communication), general packet radio service (GPRS, General Packet Radio Service), CDMA 2000 (CDMA2000, Code Division Multiple Access 2000), wideband code division multiple access (WCDMA, Wideband Code Division Multiple Access), TD SDMA (TD-SCDMA, Time Division- Synchronous Code Division Multiple Access), frequency division duplex Long Term Evolution (FDD-LTE, Frequency Division Duplexing-Long Term Evolution) and time division duplex Long Term Evolution (TDD-LTE, Time Division Duplexing-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 wireless broadband internet to the user and has 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 Formula, speech recognition mode, broadcast reception mode when under isotype, 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 exports,.Moreover, audio output unit 103 The relevant audio output of specific function performed with mobile terminal 100 can also be provided (for example, call signal receives sound, disappears Breath receives sound etc.).Audio output unit 103 can include loudspeaker, buzzer etc..

A/V input units 104 are used to receive audio or video signal.A/V input units 104 can include graphics processor (GPU, Graphics Processing Unit) 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) carry 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 The noise produced 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 one 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, 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, details are not described herein.

Display unit 106 is used for the information for showing by information input by user or being supplied to user.Display unit 106 can wrap Display panel 1061 is included, liquid crystal display (LCD, Liquid Crystal Display), Organic Light Emitting Diode can be used Forms such as (OLED, Organic Light-Emitting Diode) 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 related.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 user on it or neighbouring touch operation (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 device is 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 that processor 110 is sent can be received and 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, operation lever etc. One or more, do not limit herein specifically.

Further, contact panel 1071 can cover display panel 1061, when contact 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, contact panel 1071 and display panel 1061 be the component independent as two to realize the function that outputs and inputs of mobile terminal, but in certain embodiments, can The function that outputs and inputs of mobile terminal is 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 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 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 A part, by running or performing the software program and/or module that are stored in memory 109, and calls and is stored in storage Data in device 109, perform the various functions and processing data of mobile terminal, 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 wireless 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 be including bluetooth module etc., and details are not described herein.

For the ease of understanding the embodiment 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 Unite includes communicating user equipment (UE, the User of connection successively for the LTE system of universal mobile communications technology, the LTE system Equipment) 201, evolved UMTS Terrestrial radio access network (E-UTRAN, Evolved UMTS Terrestrial Radio Access Network) 202, the IP industry of evolved packet-based core networks (EPC, Evolved Packet Core) 203 and operator Business 204.

Specifically, UE201 can be above-mentioned 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 connected with other eNodeB2022, and eNodeB2021 is connected to EPC203, ENodeB2021 can provide the access of UE201 to EPC203.

EPC203 can include mobility management entity (MME, Mobility Management Entity) 2031, ownership Client server (HSS, Home Subscriber Server) 2032, other MME2033, gateway (SGW, Serving Gate Way) 2034, grouped data network gateway (PGW, PDN Gate Way) 2035 and policy and rate functional entity (PCRF, Policy and Charging Rules Function) 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 some are preserved in relation to service features, data rate etc. The dedicated information of user.All customer data can be transmitted by SGW2034, and PGW2035 can provide UE's 201 IP address is distributed and other functions, and PCRF2036 is that business data flow and the tactful of IP bearing resources are determined with charging control strategy Plan point, it selects and provide available strategy with charge execution function unit (not shown) for strategy and charging control is determined Plan.

IP operation 204 can include internet, Intranet, IP multimedia subsystem (IMS, IP Multimedia ) or other IP operations etc. Subsystem.

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 communications network system, each embodiment of the method for the present invention is proposed.

Embodiment one

Based on foregoing embodiment, the embodiment of the present invention provides a kind of definite method of white balance, and this method can be applied In terminal, the function that the definite method of the white balance is realized can be by the processor caller code in terminal come real Existing, certain program code can be stored in computer-readable storage medium, it is seen then that the terminal includes at least processor and storage is situated between Matter.

The present embodiment provides a kind of definite method of white balance, Fig. 3 is determining for the white balance in the embodiment of the present invention one The flow diagram of method, refering to what is shown in Fig. 3, the definite method of above-mentioned white balance can include：

S301：Obtain the image that the camera of terminal collects；

When user by the camera collection head in terminal as when, if running into the feelings that light is darker or light is brighter Condition, can cause the color in the image that camera collected to differ larger with actual color, influence the visual effect of image.

In order to eliminate this species diversity, in embodiments of the present invention, first, user sends photographing instruction or shooting to terminal Instruction, after terminal receives photographing instruction or shooting instruction, the camera collection image of terminal, then, terminal are obtained and taken the photograph The image collected as head.

S302：Determine the corresponding luminance parameter of each pixel of image；

Terminal first determines the corresponding brightness ginseng of each pixel of image after the image that camera collects is got Number, wherein, above-mentioned luminance parameter can include：In image in the brightness value and image of each pixel each pixel in color mode For RGB when rgb value.

Above by the corresponding luminance parameter of each pixel for the image determined, the Luminance Distribution of image can be known, Which region is darker, which region is relatively bright, here, it is necessary to which explanation, terminal can pass through the brightness value of each pixel To determine which region is darker, which region is relatively bright, which area is terminal can also determine by the rgb value of each pixel Domain is darker, which region is relatively bright, and the embodiment of the present invention is not especially limited this.

S303：Obtain the threshold value of predetermined luminance parameter；

After the corresponding luminance parameter of each pixel that image is determined in S303, in order to select suitable pixel, Need first to obtain the threshold value of predetermined luminance parameter.

The threshold value of above-mentioned predetermined luminance parameter is divided according to light scene, can be included：The brightness ginseng of default dark scene Several threshold values and the threshold value of the luminance parameter of default bright scene.

It should be noted that when above-mentioned luminance parameter includes brightness value, the threshold value of above-mentioned predetermined luminance parameter can include： Threshold value, the threshold value for the brightness value for presetting bright scene for presetting the brightness value of dark scene, above-mentioned luminance parameter include rgb value When, the threshold value of above-mentioned predetermined luminance parameter can include：The threshold value of the rgb value of default dark scene and default bright scene The threshold value of rgb value.

So, the threshold value in the brightness value for determining default dark scene, default bright scene brightness value threshold value, in advance If after the threshold value of the rgb value of the threshold value of the rgb value of dark scene and default bright scene, can be deleted by these threshold values Belong to the corresponding image-region of dark scene and belong to the corresponding image-region of bright scene with deleting.

S304：According to the threshold value of predetermined luminance parameter, the selected pixels point from each pixel；

In order to deleted by the threshold value of predetermined luminance parameter belong to the corresponding image-region of dark scene pixel and The pixel for belonging to the corresponding image-region of bright scene is deleted, so that the selected pixels point from each pixel, can pass through Any one mode is realized below：

When the threshold value of predetermined luminance parameter includes the threshold value of the brightness value of default dark scene, according to default bright in S304 The threshold value of parameter is spent, selected pixels point can include from each pixel：It is black more than default that brightness value is chosen from each pixel The pixel of the threshold value of the brightness value of dark scene.

When the threshold value of predetermined luminance parameter includes the threshold value of the brightness value of default bright scene, according to default bright in S304 The threshold value of parameter is spent, selected pixels point can include from each pixel：It is bright less than default that brightness value is chosen from each pixel The pixel of the threshold value of the brightness value of bright field scape.

When the threshold value of predetermined luminance parameter include the brightness value of default dark scene threshold value and default bright scene it is bright During the threshold value of angle value, according to the threshold value of predetermined luminance parameter in S304, selected pixels point can include from each pixel：From each Brightness value is chosen in pixel and is more than the threshold value for the brightness value for presetting dark scene and less than the brightness value for presetting bright scene The pixel of threshold value.

When the threshold value of predetermined luminance parameter includes the threshold value of the rgb value of default dark scene, according to default bright in S304 The threshold value of parameter is spent, selected pixels point can include from each pixel：Rgb value is chosen from each pixel and is more than default dark The pixel of the threshold value of the rgb value of scene.

When the threshold value of predetermined luminance parameter includes the threshold value of the brightness value of default bright scene, according to default bright in S304 The threshold value of parameter is spent, selected pixels point can include from each pixel：Rgb value is chosen from each pixel and is less than default become clear The pixel of the threshold value of the rgb value of scene.

When the threshold value of predetermined luminance parameter includes the threshold value of rgb value and the RGB of default bright scene of default dark scene During the threshold value of value, according to the threshold value of predetermined luminance parameter in S304, selected pixels point can include from each pixel：From each picture The threshold value of rgb value and the threshold of the rgb value of respectively less than default bright scene that rgb value is all higher than default dark scene are chosen in vegetarian refreshments The pixel of value.

S305：According to the rgb value of the pixel selected, calculated using default white balance algorithm, obtain image White balance.

After selecting pixel in S305, the pixel and bright areas of dark area in image have been deleted Pixel, then, determine image white balance when, consider only the pixel selected, do not consider dark area Pixel and bright areas pixel, i.e. according to the rgb value of the pixel selected, using default white balance algorithm Calculated, so as to obtain the white balance of image, in this way, can reduce aberration between the color of image and the color of reality compared with Big technical problem, improves the visual effect of image.

Wherein, above-mentioned white balance algorithm can include：Grey world, the automatic white balance method based on dynamic threshold, mirror Face method, scale reflection method, color correlation method and neural network etc., here, the embodiment of the present invention is not especially limited this.

A kind of definite method for white balance that the embodiment of the present invention is provided, first, the camera for obtaining terminal collects Image, determine the corresponding luminance parameter of each pixel of image, the corresponding brightness of each pixel based on the image determined Parameter, could be aware that the dark area and bright areas of image, then, the threshold value of predetermined luminance parameter be obtained, further according to default The threshold value of luminance parameter, the selected pixels point from each pixel so that the pixel selected is by each pixel to image What the luminance parameter of point was obtained by screening, finally, according to the rgb value of the pixel obtained by screening, using default white Balanced algorithm is calculated, and obtains the white balance of image；That is, in embodiments of the present invention, by obtaining predetermined luminance The threshold value of parameter, screens each pixel of image, selects the suitable pixel of luminance parameter, then, only consider The rgb value of the pixel selected determines the white balance of image, does not consider the pixel not selected, in this way, avoiding The larger technical problem of aberration between the color of the color of image caused by the definite method of existing white balance and reality, The true colors in image are reduced, so as to improve the visual effect of image.

Embodiment two

Based on foregoing embodiment, the present embodiment provides a kind of definite method of white balance, this method can be applied to end In end, the function that the definite method of the white balance is realized can be realized by the processor caller code in terminal, Certain program code can be stored in computer-readable storage medium, it is seen then that the terminal includes at least pocessor and storage media.

On the basis of above-described embodiment one, above-mentioned luminance parameter can include brightness value and rgb value, accordingly, in order to The threshold value of predetermined luminance parameter is got, can be realized by any one following mode：

When above-mentioned luminance parameter is brightness value, in a kind of optional embodiment, predetermined luminance parameter is obtained in S303 Threshold value, can include：

The threshold value of the brightness value of default dark scene is obtained, and/or, the threshold value of the brightness value of the default bright scene of acquisition.

Wherein, the threshold value of above-mentioned predetermined luminance parameter can be the threshold value of the brightness value of default dark scene, or The threshold value of the brightness value of default bright scene, can also be the threshold value of the brightness value of default dark scene and default bright scene The threshold value of brightness value, here, the embodiment of the present invention is not especially limited.

When above-mentioned luminance parameter is brightness value, in a kind of optional embodiment, according to predetermined luminance parameter in S303 Threshold value, the selected pixels point from each pixel, can include：

The corresponding pixel of threshold value that brightness value is more than the brightness value of default dark scene is selected from each pixel；

Alternatively, the corresponding pixel of threshold value that brightness value is less than the brightness value of default bright scene is selected from each pixel Point；

Alternatively, brightness value is selected from each pixel is more than the threshold value for the brightness value for presetting dark scene and less than default The corresponding pixel of threshold value of the brightness value of bright scene.

Specifically, when the threshold value for the brightness value that the threshold value of predetermined luminance parameter is default dark scene, then, brightness Value belongs to the pixel of dark area less than or equal to the corresponding pixel of threshold value of the brightness value of default dark scene, so, from The corresponding pixel of threshold value that brightness value is more than the brightness value of default dark scene is selected in each pixel.

When the threshold value for the brightness value that the threshold value of predetermined luminance parameter is default bright scene, then, brightness value is more than etc. Belong to the pixel of bright areas in the corresponding pixel of threshold value of the brightness value of default bright scene, so, from each pixel In select the corresponding pixel of threshold value that brightness value is less than the brightness value of default bright scene.

When the brightness of the threshold value and default bright scene of the brightness value that the threshold value of predetermined luminance parameter is default dark scene During the threshold value of value, then, the corresponding pixel of threshold value that brightness value is less than or equal to the brightness value of default dark scene belongs to dark The pixel in region, the corresponding pixel of threshold value that brightness value is more than or equal to the brightness value of default bright scene belong to bright areas Pixel, so, selected from each pixel brightness value be more than default dark scene brightness value threshold value and less than pre- If the corresponding pixel of the threshold value of the brightness value of bright scene.

Above-mentioned luminance parameter is rgb value, in a kind of optional embodiment, obtains the threshold value of predetermined luminance parameter, can be with Including：

Wherein, the threshold value of above-mentioned predetermined luminance parameter can be the threshold value of the rgb value of default dark scene, or pre- Can also be the threshold value of rgb value and the RGB of default bright scene of default dark scene if the threshold value of the rgb value of bright scene The threshold value of value, here, the embodiment of the present invention is not especially limited.

Above-mentioned luminance parameter is rgb value, in a kind of optional embodiment, according to the threshold of predetermined luminance parameter in S304 Value, the selected pixels point from each pixel, can include：

The corresponding pixel of threshold value that rgb value is all higher than the rgb value of default dark scene is selected from each pixel；

Alternatively, the corresponding pixel of threshold value that rgb value is respectively less than the rgb value of default bright scene is selected from each pixel Point；

It is all higher than presetting the threshold value of the rgb value of dark scene alternatively, selecting rgb value from each pixel and is respectively less than pre- If the corresponding pixel of the threshold value of the rgb value of bright scene.

Specifically, when the threshold value for the rgb value that the threshold value of predetermined luminance parameter is default dark scene, then, rgb value The corresponding pixel of threshold value less than or equal to the rgb value of default dark scene belongs to the pixel of dark area, so, from each picture The corresponding pixel of threshold value that rgb value is more than the rgb value of default dark scene is selected in vegetarian refreshments.

When the threshold value for the rgb value that the threshold value of predetermined luminance parameter is default bright scene, then, rgb value is more than or equal to The corresponding pixel of threshold value of the rgb value of default bright scene belongs to the pixel of bright areas, so, selected from each pixel Take out the corresponding pixel of threshold value that rgb value is less than the rgb value of default bright scene.

When the threshold value of rgb value and the rgb value of default bright scene that the threshold value of predetermined luminance parameter is default dark scene Threshold value when, then, the corresponding pixel of threshold value that rgb value is less than or equal to the rgb value of default dark scene belongs to dark area Pixel, the corresponding pixel of threshold value that rgb value is more than or equal to the rgb value of default bright scene belongs to the pixel of bright areas Point, so, rgb value is selected from each pixel and is more than the threshold value for the rgb value for presetting dark scene and less than default bright field The corresponding pixel of threshold value of the rgb value of scape.

In order to get the threshold value of predetermined luminance parameter, can be realized by any one following mode：

In a kind of optional embodiment, the threshold value of the brightness value of default dark scene is obtained, including：

The model of camera is obtained, the threshold value of the brightness value of the corresponding dark scene of the model of camera is determined as presetting The threshold value of the brightness value of dark scene；

The threshold value of the brightness value of default bright scene is obtained, including：

The model of camera is obtained, the threshold value of the brightness value of the corresponding bright scene of the model of camera is determined as presetting The threshold value of the brightness value of bright scene；

The threshold value of the rgb value of default dark scene is obtained, including：

The model of camera is obtained, the threshold value of the rgb value of the corresponding dark scene of the model of camera is determined as presetting The threshold value of the rgb value of dark scene；

The threshold value of the rgb value of default bright scene is obtained, including：

The model of camera is obtained, the threshold value of the rgb value of the corresponding bright scene of the model of camera is determined as presetting The threshold value of the rgb value of bright scene.

Specifically, since the photonasty of the camera of different model is different, different cameras can be caused to color Difference is perceived, so, the threshold value of different predetermined luminance parameters is corresponding with for the camera of different model, so so that no With the image that the camera of model collects in selected pixels point, the pixel for belonging to dark area can be accurately deleted With the pixel of bright areas, suitable pixel is selected to determine the white balance of image.

The colour temperature of image is obtained, the threshold value of the brightness value of the corresponding dark scene of the colour temperature of image is determined as default dark The threshold value of the brightness value of scene；

The colour temperature of image is obtained, the threshold value of the brightness value of the corresponding bright scene of the colour temperature of image is determined as default bright The threshold value of the brightness value of scene；

The colour temperature of image is obtained, the threshold value of the rgb value of the corresponding dark scene of the colour temperature of image is determined as default dark The threshold value of the rgb value of scene；

The colour temperature of image is obtained, the threshold value of the rgb value of the corresponding bright scene of the colour temperature of image is determined as default bright The threshold value of the rgb value of scene.

Specifically, since the colour temperature of image is different so that the aberration between the color and actual color of image is not Together, so, the threshold value of different predetermined luminance parameters is corresponding with for the colour temperature of different images, so so that for different figures The colour temperature of picture, according to the division of range of color temperature, in selected pixels point, can accurately delete the pixel for belonging to dark area The pixel of point and bright areas, selects suitable pixel to determine the white balance of image.

The instruction of the threshold value of scene set brightness value is received, the threshold value of the brightness value of the dark scene carried in instruction is true It is set to the threshold value of the brightness value of default dark scene；

The instruction of the threshold value of scene set brightness value is received, the threshold value of the brightness value of the bright scene carried in instruction is true It is set to the threshold value of the brightness value of default bright scene；

Specifically, in the embodiment of the present invention, a kind of threshold value for the brightness value that default dark scene is set in real time is also provided With the embodiment of the threshold value of the brightness value of default bright scene, the instruction of the threshold value by receiving scene set brightness value, determines The threshold value of the threshold value of the brightness value of default dark scene and the brightness value of default bright scene.

The instruction of the threshold value of scene set rgb value is received, the threshold value of the rgb value of the dark scene carried in instruction is determined To preset the threshold value of the rgb value of dark scene；

The instruction of the threshold value of scene set rgb value is received, the threshold value of the rgb value of the bright scene carried in instruction is determined To preset the threshold value of the rgb value of bright scene.

Specifically, in the embodiment of the present invention, also provide a kind of rgb value that default dark scene is set in real time threshold value and The embodiment of the threshold value of the rgb value of default bright scene, the instruction of the threshold value by receiving scene set rgb value, determines default The threshold value of the rgb value of the threshold value of the rgb value of dark scene and default bright scene.

For example, Fig. 4-1 is in the display schematic diagram of dark scene for the image section in the embodiment of the present invention two, such as Shown in Fig. 4-1, in the image of Fig. 4-1, lower right field belongs to dark area, in order to eliminate the region to the white balance of image Influence, first after image is got, determine the luminance parameter of each pixel of image, by taking luminance parameter is rgb value as an example For, then, the threshold value of the rgb value of default dark scene is obtained, specifically, first obtain the model of camera, then, obtaining should The threshold value (5,5,5) of the rgb value of the corresponding default dark scene of model, and obtain the corresponding default bright scene of the model The threshold value (250,250,250) of rgb value, then select rgb value and be all higher than (5,5,5) and be respectively less than the picture of (250,250,250) Vegetarian refreshments, according to the pixel selected, determines image white balance, so as to obtain Fig. 4's -2 using default white balance algorithm Image, Fig. 4-2 are the display schematic diagram redefined to Fig. 4-1 after white balance in the embodiment of the present invention two.

Fig. 5-1 is in the display schematic diagram of bright scene for the image section in the embodiment of the present invention two, such as Fig. 5-1 institutes Show, in the image of Fig. 5-1, upper left corner area belongs to bright areas, first in order to eliminate influence of the region to the white balance of image First after image is got, determine the luminance parameter of each pixel of image, by luminance parameter be rgb value exemplified by for, so Afterwards, the threshold value of the rgb value of default bright scene is obtained, specifically, the colour temperature of image is first obtained, determines the colour temperature institute of the image The range of color temperature of category is height, or in, or it is low, then, obtain the rgb value of the corresponding default dark scene of range of color temperature belonging to this Threshold value (10,10,10), and obtain the threshold value (240,240,240) of the rgb value of the corresponding default bright scene of the model, then Rgb value is selected to be all higher than (10,10,10) and be respectively less than the pixel of (240,240,240), according to the pixel selected, Image white balance is determined using default white balance algorithm, so as to obtain the image of Fig. 5-2, Fig. 5-2 is the embodiment of the present invention The display schematic diagram redefined to Fig. 5-1 after white balance in two.

Fig. 6-1 is that the image section in the embodiment of the present invention two is in dark scene and is partially in the display of bright scene Schematic diagram, as in Figure 6-1, in the image of Fig. 6-1, upper left corner area belongs to bright areas, and lower right field belongs to dark region Domain, in order to eliminate influence of the two regions to the white balance of image, first after image is got, determines each picture of image The luminance parameter of vegetarian refreshments, by taking luminance parameter is rgb value as an example for, then, obtain the rgb value of default dark scene threshold value and The threshold value of the rgb value of default bright scene, here, receives the instruction of the threshold value of scene set rgb value, obtains scene set The threshold value (8,8,8) of the rgb value of the dark scene carried in the instruction of the threshold value of rgb value, and obtain the threshold of scene set rgb value The threshold value (245,245,245) of the rgb value of the bright scene carried in the instruction of value, then select rgb value and be all higher than (8,8,8) And the pixel of (245,245,245) is respectively less than, according to the pixel selected, figure is determined using default white balance algorithm As white balance, so as to obtain the image of Fig. 6-2, Fig. 6-2 be in the embodiment of the present invention two white balance is redefined to Fig. 6-1 after Display schematic diagram.

Embodiment three

Based on foregoing embodiment of the method, the present embodiment provides a kind of terminal, Fig. 7 is the terminal in the embodiment of the present invention three Structure diagram, refering to what is shown in Fig. 7, the terminal includes processor 71, memory 72 and communication bus 73；Above-mentioned communication bus 73 are used for realization the connection communication between processor 71 and memory 72；Above-mentioned processor 71 is used to perform to store in memory 72 White balance definite program, to realize following steps：

Obtain the image that the camera of terminal collects；Determine the corresponding luminance parameter of each pixel of image；Obtain pre- If the threshold value of luminance parameter；According to the threshold value of predetermined luminance parameter, the selected pixels point from each pixel；According to the picture selected The rgb value of vegetarian refreshments, is calculated using default white balance algorithm, obtains the white balance of image.

In a kind of optional embodiment, luminance parameter is brightness value；Accordingly, the threshold value of predetermined luminance parameter is obtained In, the processor 71 is additionally operable to perform the definite program of the white balance, to realize following steps：

In a kind of optional embodiment, according to the threshold value of predetermined luminance parameter, from each pixel in selected pixels point, The processor 71 is additionally operable to perform the definite program of the white balance, to realize following steps：

The corresponding pixel of threshold value that brightness value is more than the brightness value of default dark scene is selected from each pixel；Or Person, selects the corresponding pixel of threshold value that brightness value is less than the brightness value of default bright scene from each pixel；Alternatively, from Brightness value is selected in each pixel and is more than the threshold value for the brightness value for presetting dark scene and less than the brightness of default bright scene The corresponding pixel of threshold value of value.

In a kind of optional embodiment, luminance parameter is rgb value；In the threshold value for obtaining predetermined luminance parameter, the place Reason device 71 is additionally operable to perform the definite program of the white balance, to realize following steps：

The corresponding pixel of threshold value that rgb value is all higher than the rgb value of default dark scene is selected from each pixel；Or Person, selects the corresponding pixel of threshold value that rgb value is respectively less than the rgb value of default bright scene from each pixel；Alternatively, from The threshold value of rgb value and the RGB of respectively less than default bright scene that rgb value is all higher than default dark scene are selected in each pixel The corresponding pixel of threshold value of value.

In a kind of optional embodiment, in the threshold value for the brightness value for obtaining default dark scene, the processor 71 is also For performing the definite program of the white balance, to realize following steps：

The model of camera is obtained, the threshold value of the brightness value of the corresponding dark scene of the model of camera is determined as presetting The threshold value of the brightness value of dark scene.

In a kind of optional embodiment, in the threshold value for the brightness value for obtaining default bright scene, the processor 71 is also For performing the definite program of the white balance, to realize following steps：

The model of camera is obtained, the threshold value of the brightness value of the corresponding bright scene of the model of camera is determined as presetting The threshold value of the brightness value of bright scene.

In a kind of optional embodiment, in the threshold value for the rgb value for obtaining default dark scene, the processor 71 is also used In the definite program for performing the white balance, to realize following steps：

The model of camera is obtained, the threshold value of the rgb value of the corresponding dark scene of the model of camera is determined as presetting The threshold value of the rgb value of dark scene.

In a kind of optional embodiment, in the threshold value for the rgb value for obtaining default bright scene, the processor 71 is also used In the definite program for performing the white balance, to realize following steps：

The colour temperature of image is obtained, the threshold value of the brightness value of the corresponding dark scene of the colour temperature of image is determined as default dark The threshold value of the brightness value of scene.

The colour temperature of image is obtained, the threshold value of the brightness value of the corresponding bright scene of the colour temperature of image is determined as default bright The threshold value of the brightness value of scene.

The colour temperature of image is obtained, the threshold value of the rgb value of the corresponding dark scene of the colour temperature of image is determined as default dark The threshold value of the rgb value of scene.

The instruction of the threshold value of scene set brightness value is received, the threshold value of the brightness value of the dark scene carried in instruction is true It is set to the threshold value of the brightness value of default dark scene.

The instruction of the threshold value of scene set brightness value is received, the threshold value of the brightness value of the bright scene carried in instruction is true It is set to the threshold value of the brightness value of default bright scene.

The instruction of the threshold value of scene set rgb value is received, the threshold value of the rgb value of the dark scene carried in instruction is determined To preset the threshold value of the rgb value of dark scene.

The instruction of the threshold value of scene set rgb value is received, the threshold value of the brightness value of the bright scene carried in instruction is true It is set to the threshold value of the rgb value of default bright scene.

Example IV

Based on foregoing embodiment of the method, the present embodiment provides a kind of computer-readable recording medium, Fig. 8 are real for the present invention The structure diagram of the computer-readable recording medium in example four is applied, as shown in figure 8, the computer-readable recording medium 800 is deposited The definite program of white balance is contained, is realized when the definite program of above-mentioned white balance is executed by processor as above-mentioned one or more real The step of applying the definite method of the white balance described in example.

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 other elements that are not explicitly listed are further included, or further include as 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 Also there are other identical element 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 substantially in other words does the prior art Going out the part of contribution can be embodied in the form of software product, 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, services Device, air conditioner, or network equipment etc.) perform method described in each embodiment of the present invention.

The embodiment of the present invention is described above in conjunction with attached drawing, but the invention is not limited in above-mentioned specific Embodiment, above-mentioned embodiment is only schematical, rather than restricted, those 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 very much Form, these are belonged within the protection of the present invention.

Claims

1. a kind of definite method of white balance, it is characterised in that the method is applied to a terminal, the described method includes：

Obtain the image that the camera of the terminal collects；

Determine the corresponding luminance parameter of each pixel of described image；

Obtain the threshold value of predetermined luminance parameter；

According to the threshold value of the predetermined luminance parameter, the selected pixels point from each pixel；

According to the RGB rgb value of the pixel selected, calculated using default white balance algorithm, obtain described image White balance.

2. according to the method described in claim 1, it is characterized in that, the luminance parameter is brightness value；

Accordingly, the threshold value for obtaining predetermined luminance parameter, including：

3. according to the method described in claim 2, it is characterized in that, the threshold value according to the predetermined luminance parameter, from institute Selected pixels point in each pixel is stated, including：

4. according to the method described in claim 1, it is characterized in that, the luminance parameter is rgb value；

5. according to the method described in claim 4, it is characterized in that, the threshold value according to the predetermined luminance parameter, from institute Selected pixels point in each pixel is stated, including：

6. according to 2 or 4 any one of them method of claim, it is characterised in that the brightness for obtaining default dark scene The threshold value of value, including：

The model of the camera is obtained, the threshold value of the brightness value of the corresponding dark scene of the model of the camera is determined as The threshold value of the brightness value of the default dark scene；

The threshold value of the brightness value for obtaining default bright scene, including：

The model of the camera is obtained, the threshold value of the brightness value of the corresponding bright scene of the model of the camera is determined as The threshold value of the brightness value of the default bright scene；

The threshold value of the rgb value for obtaining default dark scene, including：

The model of the camera is obtained, the threshold value of the rgb value of the corresponding dark scene of the model of the camera is determined as The threshold value of the rgb value of the default dark scene；

The threshold value of the rgb value for obtaining default bright scene, including：

The model of the camera is obtained, the threshold value of the rgb value of the corresponding bright scene of the model of the camera is determined as The threshold value of the rgb value of the default bright scene.

7. according to 2 or 4 any one of them method of claim, it is characterised in that the brightness for obtaining default dark scene The threshold value of value, including：

The colour temperature of described image is obtained, the threshold value of the brightness value of the corresponding dark scene of the colour temperature of described image is determined as described The threshold value of the brightness value of default dark scene；

The colour temperature of described image is obtained, the threshold value of the brightness value of the corresponding bright scene of the colour temperature of described image is determined as described The threshold value of the brightness value of default bright scene；

The colour temperature of described image is obtained, the threshold value of the rgb value of the corresponding dark scene of the colour temperature of described image is determined as described The threshold value of the rgb value of default dark scene；

The colour temperature of described image is obtained, the threshold value of the rgb value of the corresponding bright scene of the colour temperature of described image is determined as described The threshold value of the rgb value of default bright scene.

8. according to 2 or 4 any one of them method of claim, it is characterised in that the brightness for obtaining default dark scene The threshold value of value, including：

The instruction of the threshold value of scene set brightness value is received, the threshold value of the brightness value of the dark scene carried in described instruction is true It is set to the threshold value of the brightness value of the default dark scene；

The instruction of the threshold value of scene set brightness value is received, the threshold value of the brightness value of the bright scene carried in described instruction is true It is set to the threshold value of the brightness value of the default bright scene；

The instruction of the threshold value of scene set rgb value is received, the threshold value of the rgb value of the dark scene carried in described instruction is determined For the threshold value of the rgb value of the default dark scene；

The instruction of the threshold value of scene set rgb value is received, the threshold value of the rgb value of the bright scene carried in described instruction is determined For the threshold value of the rgb value of the default bright scene.

9. a kind of terminal, it is characterised in that the terminal includes processor, memory and communication bus；

The communication bus is used for realization the connection communication between processor and memory；

The processor is used for the definite program for performing the white balance stored in memory, to realize following steps：

Obtain the image that the camera of the terminal collects；

Obtain the threshold value of predetermined luminance parameter；

10. a kind of computer-readable recording medium, it is characterised in that the computer-readable medium storage has determining for white balance Program, realizes such as white balance described in any item of the claim 1 to 8 when the definite program of the white balance is executed by processor Definite method the step of.