CN105744247B - The method, apparatus of blank level adjustment and mobile equipment are carried out in a mobile device - Google Patents
The method, apparatus of blank level adjustment and mobile equipment are carried out in a mobile device Download PDFInfo
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Abstract
An embodiment of the present invention provides a kind of method and apparatus for carrying out blank level adjustment in a mobile device, the mobile equipment has at least one camera, at least one independent color sensor, the described method includes：When receiving the enabled instruction of camera, start the color sensor and the camera；First colour temperature is calculated by the color sensor；Blank level adjustment is carried out to the camera being currently up according to first colour temperature.The embodiment of the present invention can rely on the color temperature value of the current environment calculated by color sensor, carry out blank level adjustment, can greatly improve the accuracy of camera initial start stage white balance, lift usage experience.
Description
Technical field
The present invention relates to the technical field of mobile equipment, and blank level adjustment is carried out in a mobile device more particularly to one kind
Method, it is a kind of in a mobile device carry out blank level adjustment device and a kind of mobile equipment.
Background technology
With developing rapidly for mobile science and technology, mobile equipment is in daily life each side such as the work, study, amusement of people
It is widely available.
Many mobile equipment have camera (Camera), possess take pictures, camera function.Wherein, when taking pictures, often need
White balance (Auto White Balance, AWB) is adjusted.
Present camera is carrying out blank level adjustment, is the image sensing processor (Image by camera mostly
Sensor Processor, ISP) after, the colour temperature (Correlated of current environment is calculated by the view data got
Colour Temperature, abbreviation CCT), blank level adjustment is then carried out according to colour temperature.
Starting image sensing processor needs certain time, gets stable view data and is also required to certain time, then
Colour temperature is calculated according to view data and also needs certain time, thereby results in and is starting camera white balance early period equivalent to place
In failure state, the view data thus got shows exception, and usage experience is poor.
The content of the invention
In view of the above problems, it is proposed that the embodiment of the present invention overcomes the above problem or at least in part in order to provide one kind
A kind of method for carrying out blank level adjustment in a mobile device for solving the above problems and it is corresponding a kind of in a mobile device into
The device of row blank level adjustment, a kind of mobile equipment.
To solve the above-mentioned problems, the embodiment of the invention discloses a kind of side for carrying out blank level adjustment in a mobile device
Method, the mobile equipment have at least one camera, at least one independent color sensor, the described method includes：
When receiving the enabled instruction of camera, start the color sensor and the camera；
First colour temperature is calculated by the color sensor；
Blank level adjustment is carried out to the camera being currently up according to first colour temperature.
The embodiment of the invention also discloses a kind of device for carrying out blank level adjustment in a mobile device, the mobile equipment
With at least one camera, at least one independent color sensor, described device includes：
Starting module, for when receiving the enabled instruction of camera, starting the color sensor and the shooting
Head；
First colour temperature computing module, for calculating the first colour temperature by the color sensor；
First blank level adjustment module, for carrying out white balance tune to the camera being currently up according to first colour temperature
It is whole.
The embodiment of the invention also discloses a kind of mobile equipment, the mobile equipment has at least one camera, at least
One independent color sensor and white balance adjusting device；
The white balance adjusting device includes：
Starting module, for when receiving the enabled instruction of camera, starting the color sensor and the shooting
Head；
First colour temperature computing module, for calculating the first colour temperature by the color sensor；
First blank level adjustment module, for carrying out white balance tune to the camera being currently up according to first colour temperature
It is whole.
The embodiment of the present invention includes advantages below：
The embodiment of the present invention calculates the colour temperature of current environment getting by color sensor, in the image sense of camera
When answering the processor not yet to get stable colour temperature, the colour temperature of the current environment calculated by color sensor can be relied on
Value, carries out blank level adjustment, can greatly improve the accuracy of camera initial start stage white balance, lifts usage experience.
Further, the embodiment of the present invention truly can reflect and image as a result of the color sensor of two planes
The colour temperature of the image sensing processor local environment of head, and the colour temperature is credible, adjusts white balance with this colour temperature, further increases
The accuracy of blank level adjustment.
When the embodiment of the present invention gets stable view data in camera, the second colour temperature is calculated, with first
Colour temperature carries out contrast processing, the colour temperature after being optimized, and blank level adjustment is carried out, so as to improve the standard of white balance during use
True property.
Brief description of the drawings
Fig. 1 is a kind of hardware architecture diagram of mobile equipment of the present invention；
Fig. 2 is a kind of structure diagram of camera of the present invention；
Fig. 3 is a kind of position exemplary plot of color sensor of the present invention；
Fig. 4 is a kind of step flow chart of embodiment of the method 1 for carrying out blank level adjustment in a mobile device of the present invention；
Fig. 5 is a kind of step flow chart of embodiment of the method 2 for carrying out blank level adjustment in a mobile device of the present invention；
Fig. 6 is a kind of structure diagram of device embodiment for carrying out blank level adjustment in a mobile device of the present invention；
Fig. 7 is a kind of structure diagram of mobile equipment of the present invention.
Embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, it is below in conjunction with the accompanying drawings and specific real
Applying mode, the present invention is described in further detail.
With reference to Fig. 1, the hardware architecture diagram of the mobile equipment of the present invention is shown, the mobile equipment 100 is with extremely
A few camera 101, at least one independent color sensor 102.
In embodiments of the present invention, mobile equipment 100 can be set including mobile phone, tablet computer, personal digital assistant, wearing
Standby (such as glasses, wrist-watch) etc., the embodiment of the present invention is not any limitation as this.
The operating system of the movement equipment 100 can include Android (Android), IOS, Windows Phone,
Windows etc., can usually support camera application operation, which can drive camera 101 to obtain image
Data.
Camera 101 is a hardware in mobile equipment 100, can be used for taking pictures and shoots, can be it is built-in (
Inside mobile equipment 100) or external (being connected by the interface of data cable or mobile equipment 100), the present invention is real
Example is applied also not to be any limitation as this.
As shown in Fig. 2, camera 101 can generally include camera lens (Lens) 201, pedestal (Holder) 202, infrared filtering
The components such as piece (IR) 203, image sensing processor (Sensor) 204, circuit board 205.
Wherein, image sensing processor (Sensor) 204 is a kind of semiconductor chip, its surface includes hundreds of thousands to several
Million photodiodes not waited, when photodiode receives light irradiation, can produce electric charge.
Image sensing processor (Sensor) 204 can convert light into electric signal, then be converted to by internal DA
Digital signal, the plane where image sensing processor (Sensor) 204 are the imaging plane of view data.
Color sensor 102 (such as rgb color sensor) is also a hardware in mobile equipment 100, can be used for surveying
Measure color-values (such as red R, green G, indigo plant B).
Color sensor 102 divides for three kinds of different types：Light is changed to photoelectric current, and light to analog voltage is changed, light to number
Word is changed.
Wherein, light is made of to photoelectricity stream transformer photodiode or the photodiode with color filters, will
Light is converted into photoelectric current.External circuit can be used, photoelectric current is converted into proportional voltage output, may then pass through mould
Intend digital quantizer and convert voltage to number format.
Light is made of to analog voltage converter the photodiode array of accompanying colour wave filter, and integrates one across resistance
Anti- amplifier.External circuit can be used, analog voltage is converted into numeral output.
Photodiode array, analog-digital converter and use of the light to digital voltage converter by collocation rgb filter
In the digital core composition of communication and sensitivity control.
It should be noted that meaning of the embodiment of the present invention " independence " can refer to functional independence, it is hard to need not rely upon other
Part, color sensor 102 can be encapsulated in structure in IC (integrated circuit), such as with moving the light level in equipment 100
Device is encapsulated in same IC, shared interface.
In the concrete realization, color sensor 102 can be with image sensing processor 204 towards same direction, i.e. color
Sensor 102 can be located in the plane where image sensing processor 204, color sensor 102 gather color component and
The optical environment of view data that image sensing processor 204 gathers is consistent, color sensor and take pictures/shooting environmental
Light source is opposite, can detect that the real color-values of current environment.
In one preferred embodiment of the invention, as shown in figure 3, on the side of mobile equipment 100, the camera
101 can include the first camera 301 (also known as rear camera) for being placed in mobile 100 rear end of equipment, and, it is placed in movement and sets
The second camera 302 (also known as front camera) of standby 100 front ends；
Wherein, first camera 301 can include the first image sensing processor 303, the second camera 302
It can include the second image sensing processor 304.
The color sensor 102 can include the first color sensor 305 and the second color sensor 306；
First color sensor 305 can sense processor 303 towards same direction with described first image；
Second color sensor 306 can be with the second image sensing processor 304 towards same direction.
First color sensor 305 can share perforate with the light-sensitive device in mobile equipment 100, range sensor, the
Two color sensors 306 may need other perforate, can also be placed on same perforate with flash lamp etc., movement is set with reducing
Standby 100 change, the embodiment of the present invention are not any limitation as this.
Certainly, the quantity of above-mentioned color sensor and position are intended only as example, can be with when implementing the embodiment of the present invention
Quantity and the position of other color sensors are set according to actual conditions, for example, three, four, it is distributed in the four of mobile equipment
Week etc., the embodiment of the present invention are not any limitation as this.In addition, in addition to the quantity of above-mentioned color sensor and position, ability
Field technique personnel can also be according to the quantity and position being actually needed using other color sensors, and the embodiment of the present invention is to this
It is not any limitation as.
Reference Fig. 4, shows a kind of step of embodiment of the method 1 for carrying out blank level adjustment in a mobile device of the present invention
Rapid flow chart, specifically may include steps of：
Step 401, when receiving the enabled instruction of camera, the color sensor and the camera are started；
The enabled instruction of camera can refer to start camera instruction, user can by clicking on camera application,
Alternatively, press the enabled instruction that the modes such as the physical button specified trigger camera.
In embodiments of the present invention, can be before the view data that application camera obtains carry out blank level adjustment, should
With color sensor, blank level adjustment is carried out with the optical information of quick obtaining current environment.
It is of course also possible to while camera is started, start color sensor, can also be after camera be started
In short time, start color sensor, the embodiment of the present invention is not any limitation as this.
In android system, start camera and generally require Java applications (application layer), Framework
Interaction between (application framework layer), Hardware (hardware abstraction layer), Linux Kernel (Linux inner core).
Specifically, starter launcher searches the money of camera application in Java applications (application layer)
Source, obtains and starts entrance.Handing over virtual machine parsing to perform successively Java code, can call successively in the process of implementation
The interface of Framewrok (application framework layer), the interface and Linux Kernel of Hardware (hardware abstraction layer) is (in Linux
Stratum nucleare) driving interface, finally start camera.
Wherein, Java applications (application layer) are run on a java virtual machine with what Java language was write
Program, such as camera application.Enabling camera application needs to start Java Virtual Machine, and Java Virtual Machine can inherently take greatly
System resource is measured, the efficiency for causing to enable camera application declines.
Since camera needs to initialize many registers when first powering on, the extra time can be also consumed.
Can be wherein some camera, such as the first camera or second it should be noted that the camera started
Camera.
In general, in android system, start color sensor (RGB sensors) and functionally more concentrate, greatly
More externally to provide current environment color informations (i.e. color component), the register that when opening color sensor needs to configure is seldom,
Very short to the time for completing sampling from sampled data is started after configuration register, certain such as current color sensor most soon can be
The environmental color intelligence sample of single is completed in 2.78ms, the data volume of data normally only includes color information, due to data volume
It is small also very small in the time and memory headroom for being transferred to upper strata camera applications needs.
And the register information needed to configure during ISP startups is more, so that time-consuming, each frame data of sampling include figure
The much informations such as picture, brightness and colour temperature, data volume is very big, and time and the memory sky of needs are transmitted from ISP readings data
Between it is also big, when reading multiframe, it is necessary to time and memory headroom also with regard to bigger.
So in terms of configuration information, data volume size color sensor can be learnt compared to ISP in speed when starting
It is small in upper fast, power consumption, accurately estimate that environment is true since the characteristic of speed can complete multiple repairing weld in same time
CCT values, accuracy will get well.
It should be noted that the color sensor started, can be whole color sensors, such as the first color senses
Device and the second color sensor.
Step 402, the first colour temperature is calculated by the color sensor；
Under normal circumstances, color sensor startup and detection it is rapider than the startup and detection of camera, therefore, taking the photograph
When not yet getting stable colour temperature as the image sensing processor of head, it can be provided by independent color sensor
Colour temperature (i.e. the first colour temperature).
In one preferred embodiment of the invention, step 402 can include following sub-step：
Sub-step S11, drives the color sensor to obtain color component；
In the concrete realization, color sensor (such as rgb color sensor) can obtain each color of the light of current environment
Component (such as red R component, green G components, blue B component).
If using structure as indicated at 3, the color component can include：
The first color component obtained by first color sensor, and, obtained by second color sensor
The second color component.
Certainly, if using other structures, which can also include other components, the embodiment of the present invention to this not
It is any limitation as.
Sub-step S12, the first colour temperature is calculated using the color component.
In the concrete realization, color component can be converted to chromaticity coordinates, chromaticity coordinate is calculated using chromaticity coordinates, then use
Chromaticity coordinate calculates the first colour temperature.
In one example, red R component, green G components, blue B component can be converted into by XYZ coordinate system by equation below
(chromaticity coordinates)：
X=(- 0.14282) (R)+(1.54924) (G)+(- 0.95641) (B)
Y=(- 0.32466) (R)+(1.57837) (G)+(- 0.73191) (B)
Z=(- 0.68202) (R)+(0.77073) (G)+(0.56332) (B)
The accounting of x, y (chromaticity coordinate) are calculated by equation below：
X=X/ (X+Y+Z)
Y=Y/ (X+Y+Z)
Colour temperature CCT is calculated by equation below:
N=(x-0.3320)/(0.1858-y)
CCT=449n3+3525n2+6823.3n+5520.33
It is assumed that the color component of certain color sensor measurement is respectively R=29, G=38, B=39；Thus it can then count
Calculate X, Y, Z：
X=(- 0.14282) (29)+(1.54924) (38)+(- 0.95641) (39)=17.42935
Y=(- 0.32466) (29)+(1.57837) (38)+(- 0.73191) (39)=22.01843
Z=(- 0.68202) (29)+(0.77073) (38)+(0.56332) (39)=31.47864
And then calculate x, y：
X=X/ (X+Y+Z)=17.42935/ (17.42935+22.01843+31.47864)=0.245738471
Y=Y/ (X+Y+Z)=22.01843/ (17.42935+22.01843+31.47864)=0.310440454
And then calculate CCT：
N=(x-0.3320)/(0.1858-y)=(0.245738471-0.3320)/(0.1858-0.310440454)=
0.69208292
CCT=449n3+3525n2+ 6823.3n+5520.33=449 (0.69208292)3+3525(0.69208292)2+
6823.3*0.69208292+5520.33=10391.45975
I.e. the CCT values of current environment are 10391.45975.
If using structure as indicated at 3, first colour temperature can include：
The first sensor colour temperature calculated by first color component, and, calculated by second color component
Second sensor colour temperature.
Certainly, if using other structures, which can also include other colour temperatures, the embodiment of the present invention to this not
It is any limitation as.
Step 403, blank level adjustment is carried out to the camera being currently up according to first colour temperature.
In the concrete realization, CCT can map out the ratio (gain) of color (RGB) by modes such as linear interpolations, this
A value is exactly the result of AWB.
The first purpose of AWB is to calculate the CCT of current image date, then by tabling look-up or interpolation obtains currently
These gain write-ins ISP, can be obtained by the data after AWB adjustment by the RGB gain of CCT.
For example, the RGB gain corresponding to AWB measurement 2800K 3500K 4800K 5000K 6500K 7500K, if
Median, then linear interpolation RGB gain.
It should be noted that the camera of adjusted white balance is the camera being currently up, i.e. if being currently up first
Camera, then carry out blank level adjustment to the first camera, if being currently up second camera, second camera is carried out white
Balanced adjustment.
In one preferred embodiment of the invention, step 403 can include following sub-step：
Sub-step S21, chooses first object colour temperature from first colour temperature；
Sub-step S22, is carried out using the image sensing processor of camera of the first object colour temperature to being currently up
Blank level adjustment.
If using multiple color sensors (structure as shown in Figure 3), multiple first colour temperatures (such as first can be measured
Sensor colour temperature, second sensor colour temperature).
In embodiments of the present invention, highest first colour temperature of confidence level can therefrom be chosen as first object colour temperature, it is right
The image sensing processor for the camera being currently up carries out blank level adjustment.
For example, if what is be currently up is the first camera, white balance tune can be carried out to the first image sensing processor
It is whole；If what is be currently up is second camera, blank level adjustment can be carried out to the second image sensing processor.
In one preferred embodiment of the invention, sub-step S21 can further include following sub-step：
Sub-step S211, calculates the first colour temperature between the first sensor colour temperature and the second sensor colour temperature
Difference；
Sub-step S212, judges whether first color temperature difference is more than default first color temperature difference threshold value；If so, then perform
Sub-step S213, if it is not, then performing sub-step S214；
Sub-step S213, first object colour temperature is arranged to by the second sensor colour temperature；
Sub-step S214, obtains the brightness of the first camera institute Environment Oriented；
Sub-step S215, when the brightness is within default brightness range, will be located at target image sensing processor
First colour temperature of affiliated plane is arranged to first object colour temperature；
Wherein, the target image sensing processor is the image sensing processor for the camera being currently up.
In this example, while camera (such as the first camera or second camera) is opened, open and obtain first
Color sensor, the second color sensor, are getting in the first image sensing processor, the second image sensing processor two
After first color component of plane, the second color component, the first color component is respectively adopted, the second color component is converted into first
Sensor colour temperature, second sensor colour temperature.
Contrast processing is carried out by the first sensor colour temperature of two planes, second sensor colour temperature, obtains current environment
Optimal CCT values (i.e. first object colour temperature).
In the case of light data are normal, be such as not much different (the first color between the first color component, the second color component
The temperature difference is less than or equal to the first color temperature difference threshold value), brightness it is normal (brightness is within brightness range), Primary Reference is conplane
Image sensing processor, what is even currently opened is the first camera, then the first image sensing processor senses for target image
Processor, first object colour temperature is arranged to by first sensor colour temperature；If what is currently opened is second camera, the second image
Sense processor and sense processor for target image, first sensor colour temperature is arranged to the second target colour temperature.
But all it is not enough to judge that (brightness is in brightness model in the data of the first camera and the information of color sensor
Outside enclosing), or when having obvious conflict (the first color temperature difference is more than the first color temperature difference threshold value), second camera offer can be utilized
Auxiliary information.
For example, the first camera does not have enough information or the first camera and the first imaging sensor to be blocked by shadow, or
Person has the interference of certain color lamp, if carrying out the adjustment of white balance using the colour temperature of the environment, blank level adjustment may be caused inaccurate,
Or mistake, cause picture colour cast.
Certainly, the selection mode of above-mentioned first object colour temperature is intended only as example, can be with when implementing the embodiment of the present invention
Quantity and the position of other color sensors are set according to actual conditions, for example, using three, four, are distributed in mobile equipment
Surrounding when structure, using other selection modes, the embodiment of the present invention is not any limitation as this.
Camera generally requires multiple image data to judge current environment in automatic mode, to calculate suitable color
(RGB) gain.If initial value and actual value diversity ratio are larger, two problems may be caused, a problem is whole picture
Color mistake, it is common partially blue either partially yellow or even blue screen or yellow screen occur, can so seem that picture is abnormal and does not connect
It is continuous.Another problem is that the time of colour stable can be long because will the view data of more multiframe make a decision, white balance is received
Holding back also can be slow.
If after getting the optical information of current environment using color sensor, restarting camera, initial colour temperature can be with
It is configured to be close or equal to environment value, alleviates or eliminate the color exception after camera is opened, while white balance also can be quickly
Convergence.
The embodiment of the present invention calculates the colour temperature of current environment getting by color sensor, in the image sense of camera
When answering the processor not yet to get stable colour temperature, the colour temperature of the current environment calculated by color sensor can be relied on
Value, carries out blank level adjustment, can greatly improve the accuracy of camera initial start stage white balance, lifts usage experience.
Further, the embodiment of the present invention truly can reflect and image as a result of the color sensor of two planes
The colour temperature of the image sensing processor local environment of head, and the colour temperature is credible, adjusts white balance with this colour temperature, further increases
The accuracy of blank level adjustment.
Reference Fig. 5, shows a kind of step of embodiment of the method 2 for carrying out blank level adjustment in a mobile device of the present invention
Rapid flow chart, specifically may include steps of：
Step 501, when receiving the enabled instruction of camera, the color sensor and the camera are started；
Step 502, the first colour temperature is calculated by the color sensor；
Step 503, blank level adjustment is carried out to the camera being currently up according to first colour temperature；
Step 504, the camera being currently up is driven to obtain view data；
In practical applications, scenery (SCENE) projects figure by the optical imagery that the camera lens (Lens) of camera generates
As on sensing processor (Sensor) surface, then turning to electric signal, it is changed into digital picture after A/D (analog-to-digital conversion) conversions
Signal, by being compressed in digital signal processing chip (DSP) or code database to data image signal and being converted into specific figure
As file format, by data bus transmission to move the processor (Central Processing Unit, CPU) of equipment into
Row processing, then can show in the display screen of mobile equipment.
It should be noted that acquired in camera be a series of images data, i.e. multiframe view data.
If what is be currently up is the first camera, view data can be obtained by the first camera；If it is currently up
It is second camera, then view data can be obtained by second camera.
Step 504, the second colour temperature is calculated using described image data；
In embodiments of the present invention, for every frame image data, second colour temperature can be calculated.
DSP does every frame data the statistics of AWB, counts the value of R/G, B/G of x*y window, then unites by these
Evaluation calculates current CCT.
In general, it is necessary to number frame image data adjustment can obtain stable CCT values (sample frequency be 30 frames/
Second), it is necessary to consume the regular hour.
Step 505, the second target colour temperature is chosen from first colour temperature and second colour temperature；
In embodiments of the present invention, the highest colour temperature of confidence level can be chosen from the first colour temperature and the second colour temperature as
One target colour temperature.
It should be noted that the first colour temperature can include first object colour temperature, i.e., calculated from multiple color sensors
The highest colour temperature of confidence level.
In one preferred embodiment of the invention, step 505 can include following sub-step：
Sub-step S31, calculates the second color temperature difference between first colour temperature and second colour temperature；
Sub-step S32, judges whether second color temperature difference is more than default second color temperature difference threshold value；If so, then perform
Sub-step S33, if it is not, then performing sub-step S34；
Sub-step S33, the second target colour temperature is arranged to by first colour temperature；
Sub-step S34, the second target colour temperature is arranged to by second colour temperature.
In embodiments of the present invention, if in the presence of conflicting, (the second color temperature difference is more than the first colour temperature to the first colour temperature with the second colour temperature
Poor threshold value), then the image sensing processor for being probably camera does not get stable view data, according to this calculate
The confidence level of two colour temperatures is low compared with the first colour temperature that color sensor calculates, then is used as the second target colour temperature using the first colour temperature.
If the first colour temperature is close with the second colour temperature (the second color temperature difference is less than or equal to the first color temperature difference threshold value), it is probably
The image sensing processor of camera has got stable view data, according to this second colour temperature calculated confidence level compared with
The first colour temperature that color sensor calculates is high, then is used as the second target colour temperature using the second colour temperature.
Step 506, blank level adjustment is carried out to the camera being currently up according to the second target colour temperature.
In the concrete realization, can be handled according to the image sensing of camera of the second target colour temperature to being currently up
Device carries out blank level adjustment.
If what is be currently up is the first camera, blank level adjustment can be carried out to the first image sensing processor；If
What is be currently up is second camera, then can carry out blank level adjustment to the second image sensing processor.
When the embodiment of the present invention gets stable view data in camera, the second colour temperature is calculated, with first
Colour temperature carries out contrast processing, the colour temperature after being optimized, and blank level adjustment is carried out, so as to improve the standard of white balance during use
True property.
It should be noted that for embodiment of the method, in order to be briefly described, therefore it is all expressed as to a series of action group
Close, but those skilled in the art should know, the embodiment of the present invention and from the limitation of described sequence of movement, because according to
According to the embodiment of the present invention, some steps can use other orders or be carried out at the same time.Secondly, those skilled in the art also should
Know, embodiment described in this description belongs to preferred embodiment, and the involved action not necessarily present invention is implemented
Necessary to example.
Reference Fig. 6, shows a kind of knot of device embodiment for carrying out blank level adjustment in a mobile device of the present invention
Structure block diagram, the movement equipment can have at least one camera, at least one independent color sensor, which specifically may be used
With including following module：
Starting module 601, for when receiving the enabled instruction of camera, starting the color sensor and described taking the photograph
As head；
First colour temperature computing module 602, for calculating the first colour temperature by the color sensor；
First blank level adjustment module 603, for being put down in vain to the camera being currently up according to first colour temperature
Weighing apparatus adjustment.
In being particularly shown, the camera can include image sensing processor, and the color sensor can be with institute
Image sensing processor is stated towards same direction.
In one preferred embodiment of the invention, the first colour temperature computing module 602 can include following submodule：
First acquisition submodule, for driving the color sensor to obtain color component；
Calculating sub module, for calculating the first colour temperature using the color component.
In one preferred embodiment of the invention, the first blank level adjustment module 603 can include following submodule
Block：
First object colour temperature chooses submodule, for choosing first object colour temperature from first colour temperature；
First adjustment submodule, at using the first object colour temperature to the image sensing for the camera being currently up
Manage device and carry out blank level adjustment.
In a kind of preferred exemplary of the embodiment of the present invention, the camera can include being placed in the of mobile equipment rear end
One camera, and, it is placed in the second camera of mobile front equipment end；
Wherein, first camera can include the first image sensing processor, and the second camera can include
Second image sensing processor；
The color sensor can include the first color sensor and the second color sensor；
First color sensor can sense processor towards same direction with described first image；
Second color sensor can be with the second image sensing processor towards same direction.
Wherein, the color component can include：
The first color component obtained by first color sensor, and, obtained by second color sensor
The second color component；
First colour temperature can include：
The first sensor colour temperature calculated by first color component, and, calculated by second color component
Second sensor colour temperature.
In a kind of preferred exemplary of the embodiment of the present invention, the first object colour temperature is chosen submodule and can further be wrapped
Include following submodule：
First color temperature difference calculating sub module, for calculate the first sensor colour temperature and the second sensor colour temperature it
Between the first color temperature difference；
First judging submodule, for judging whether first color temperature difference is more than default first color temperature difference threshold value；If
It is then to perform first and submodule is set, if it is not, then calling the second acquisition submodule；
First sets submodule, for the second sensor colour temperature to be arranged to first object colour temperature；
Second acquisition submodule, for obtaining the brightness of the first camera institute Environment Oriented；
Second sets submodule, for that when the brightness is within default brightness range, will be located at target image sense
The first colour temperature of the affiliated plane of processor is answered to be arranged to first object colour temperature；The target image sensing processor is to be currently up
Camera image sensing processor.
In one preferred embodiment of the invention, which can also include following module：
Image data acquisition module, for driving the camera being currently up to obtain view data；
Second colour temperature computing module, for calculating the second colour temperature using described image data；
Second target colour temperature chooses module, for choosing the second aim colour from first colour temperature and second colour temperature
Temperature；
Second blank level adjustment module, for being put down in vain to the camera being currently up according to the second target colour temperature
Weighing apparatus adjustment.
In one preferred embodiment of the invention, the second target colour temperature, which chooses module, can include following submodule
Block：
Second color temperature difference calculating sub module, for calculating the second colour temperature between first colour temperature and second colour temperature
Difference；
Second judgment submodule, for judging whether second color temperature difference is more than default second color temperature difference threshold value；If
It is then to perform the 3rd and submodule is set, if it is not, then calling the 4th to set submodule；
3rd sets submodule, for first colour temperature to be arranged to the second target colour temperature；
4th sets submodule, for second colour temperature to be arranged to the second target colour temperature.
Reference Fig. 7, shows a kind of structure diagram of mobile apparatus embodiments of the present invention, and the mobile equipment can have
There are at least one camera 710, at least one independent color sensor 720 and white balance adjusting device 730；
Wherein, the white balance adjusting device 730 can include following module：
Starting module 731, for when receiving the enabled instruction of camera, starting the color sensor and described taking the photograph
As head；
First colour temperature computing module 732, for calculating the first colour temperature by the color sensor；
First blank level adjustment module 733, for being put down in vain to the camera being currently up according to first colour temperature
Weighing apparatus adjustment.
In being particularly shown, the camera can include image sensing processor, and the color sensor can be with institute
Image sensing processor is stated towards same direction.
In one preferred embodiment of the invention, the first colour temperature computing module 732 can include following submodule：
First acquisition submodule, for driving the color sensor to obtain color component；
Calculating sub module, for calculating the first colour temperature using the color component.
In one preferred embodiment of the invention, the first blank level adjustment module 733 can include following submodule
Block：
First object colour temperature chooses submodule, for choosing first object colour temperature from first colour temperature；
First adjustment submodule, at using the first object colour temperature to the image sensing for the camera being currently up
Manage device and carry out blank level adjustment.
In a kind of preferred exemplary of the embodiment of the present invention, the camera can include being placed in the of mobile equipment rear end
One camera, and, it is placed in the second camera of mobile front equipment end；
Wherein, first camera can include the first image sensing processor, and the second camera can include
Second image sensing processor；
The color sensor can include the first color sensor and the second color sensor；
First color sensor can sense processor towards same direction with described first image；
Second color sensor can be with the second image sensing processor towards same direction.
Wherein, the color component can include：
The first color component obtained by first color sensor, and, obtained by second color sensor
The second color component；
First colour temperature can include：
The first sensor colour temperature calculated by first color component, and, calculated by second color component
Second sensor colour temperature.
In a kind of preferred exemplary of the embodiment of the present invention, the first object colour temperature is chosen submodule and can further be wrapped
Include following submodule：
First color temperature difference calculating sub module, for calculate the first sensor colour temperature and the second sensor colour temperature it
Between the first color temperature difference；
First judging submodule, for judging whether first color temperature difference is more than default first color temperature difference threshold value；If
It is then to perform first and submodule is set, if it is not, then calling the second acquisition submodule；
First sets submodule, for the second sensor colour temperature to be arranged to first object colour temperature；
Second acquisition submodule, for obtaining the brightness of the first camera institute Environment Oriented；
Second sets submodule, for that when the brightness is within default brightness range, will be located at target image sense
The first colour temperature of the affiliated plane of processor is answered to be arranged to first object colour temperature；The target image sensing processor is to be currently up
Camera image sensing processor.
In one preferred embodiment of the invention, which can also include following module：
Image data acquisition module, for driving the camera being currently up to obtain view data；
Second colour temperature computing module, for calculating the second colour temperature using described image data；
Second target colour temperature chooses module, for choosing the second aim colour from first colour temperature and second colour temperature
Temperature；
Second blank level adjustment module, for being put down in vain to the camera being currently up according to the second target colour temperature
Weighing apparatus adjustment.
In one preferred embodiment of the invention, the second target colour temperature, which chooses module, can include following submodule
Block：
Second color temperature difference calculating sub module, for calculating the second colour temperature between first colour temperature and second colour temperature
Difference；
Second judgment submodule, for judging whether second color temperature difference is more than default second color temperature difference threshold value；If
It is then to perform the 3rd and submodule is set, if it is not, then calling the 4th to set submodule；
3rd sets submodule, for first colour temperature to be arranged to the second target colour temperature；
4th sets submodule, for second colour temperature to be arranged to the second target colour temperature.
For device embodiment, since it is substantially similar to embodiment of the method, so description is fairly simple, it is related
Part illustrates referring to the part of embodiment of the method.
Each embodiment in this specification is described by the way of progressive, what each embodiment stressed be with
The difference of other embodiment, between each embodiment identical similar part mutually referring to.
It should be understood by those skilled in the art that, the embodiment of the embodiment of the present invention can be provided as method, apparatus or calculate
Machine program product.Therefore, the embodiment of the present invention can use complete hardware embodiment, complete software embodiment or combine software and
The form of the embodiment of hardware aspect.Moreover, the embodiment of the present invention can use one or more wherein include computer can
With in the computer-usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) of program code
The form of the computer program product of implementation.
The embodiment of the present invention be with reference to according to the method for the embodiment of the present invention, terminal device (system) and computer program
The flowchart and/or the block diagram of product describes.It should be understood that it can realize flowchart and/or the block diagram by computer program instructions
In each flow and/or block and flowchart and/or the block diagram in flow and/or square frame combination.These can be provided
Computer program instructions are set to all-purpose computer, special purpose computer, Embedded Processor or other programmable data processing terminals
Standby processor is to produce a machine so that is held by the processor of computer or other programmable data processing terminal equipments
Capable instruction is produced and is used for realization in one flow of flow chart or multiple flows and/or one square frame of block diagram or multiple square frames
The device for the function of specifying.
These computer program instructions, which may also be stored in, can guide computer or other programmable data processing terminal equipments
In the computer-readable memory to work in a specific way so that the instruction being stored in the computer-readable memory produces bag
The manufacture of command device is included, which realizes in one flow of flow chart or multiple flows and/or one side of block diagram
The function of being specified in frame or multiple square frames.
These computer program instructions can be also loaded into computer or other programmable data processing terminal equipments so that
Series of operation steps is performed on computer or other programmable terminal equipments to produce computer implemented processing, so that
The instruction performed on computer or other programmable terminal equipments is provided and is used for realization in one flow of flow chart or multiple flows
And/or specified in one square frame of block diagram or multiple square frames function the step of.
Although having been described for the preferred embodiment of the embodiment of the present invention, those skilled in the art once know base
This creative concept, then can make these embodiments other change and modification.So appended claims are intended to be construed to
Including preferred embodiment and fall into all change and modification of range of embodiment of the invention.
Finally, it is to be noted that, herein, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or order.Moreover, term " comprising ", "comprising" or its any other variant meaning
Covering non-exclusive inclusion, so that process, method, article or terminal device including a series of elements are not only wrapped
Those key elements are included, but also including other elements that are not explicitly listed, or further include as this process, method, article
Or the key element that terminal device is intrinsic.In the absence of more restrictions, wanted by what sentence "including a ..." limited
Element, it is not excluded that also there are other identical element in the process including the key element, method, article or terminal device.
A kind of method for carrying out blank level adjustment in a mobile device provided by the present invention, one kind are set in movement above
The device of standby middle progress blank level adjustment and a kind of mobile equipment, are described in detail, specific case pair used herein
The principle of the present invention and embodiment are set forth, and the explanation of above example is only intended to help to understand method of the invention
And its core concept；Meanwhile for those of ordinary skill in the art, according to the thought of the present invention, in embodiment and
There will be changes in application range, in conclusion this specification content should not be construed as limiting the invention.
Claims (15)
- A kind of 1. method for carrying out blank level adjustment in a mobile device, it is characterised in that the mobile equipment has at least one A camera, at least one independent color sensor, the color sensor include the first color sensor and the second color Sensor, the camera include the first camera for being placed in mobile equipment rear end, and, it is placed in the second of mobile front equipment end Camera, the camera include image sensing processor, the described method includes：When receiving the enabled instruction of camera, start the color sensor, and first camera or described Two cameras；First colour temperature is calculated by the color sensor；Wherein, first colour temperature includes first sensor colour temperature and second Sensor colour temperature；Blank level adjustment is carried out to the camera being currently up according to first colour temperature, including：First object colour temperature is chosen from first colour temperature；Blank level adjustment is carried out using the image sensing processor of camera of the first object colour temperature to being currently up；Wherein, described the step of target colour temperature is chosen from the first colour temperature, includes：Calculate the first color temperature difference between the first sensor colour temperature and the second sensor colour temperature；Judge whether first color temperature difference is more than default first color temperature difference threshold value；If so, the second sensor colour temperature is then arranged to first object colour temperature；If it is not, then obtain the brightness of the first camera institute Environment Oriented；When the brightness is within default brightness range, by positioned at the first color of the target image sensing affiliated plane of processor Temperature is arranged to first object colour temperature；The target image sensing processor is the image sensing processing for the camera being currently up Device.
- 2. according to the method described in claim 1, it is characterized in that, the color sensor and described image sensing processor face To same direction.
- 3. according to the method described in claim 1, it is characterized in that, described calculate the first colour temperature by the color sensor Step includes：The color sensor is driven to obtain color component；First colour temperature is calculated using the color component.
- 4. according to the method described in claim 1 or 2 or 3, it is characterised in that first camera includes the first image sensing Processor, the second camera include the second image sensing processor；First color sensor senses processor towards same direction with described first image；Second color sensor and the second image sensing processor are towards same direction.
- 5. according to the method described in claim 4, it is characterized in that,The color component includes：The first color component obtained by first color sensor, and, the obtained by second color sensor Two color components；First colour temperature includes：The first sensor colour temperature calculated by first color component, and, second calculated by second color component Sensor colour temperature.
- 6. according to the method described in claim 1 or 2 or 3 or 5, it is characterised in that further include：The camera being currently up is driven to obtain view data；The second colour temperature is calculated using described image data；The second target colour temperature is chosen from first colour temperature and second colour temperature；Blank level adjustment is carried out to the camera being currently up according to the second target colour temperature.
- 7. according to the method described in claim 6, it is characterized in that, described select from first colour temperature and second colour temperature The step of taking the second target colour temperature includes：Calculate the second color temperature difference between first colour temperature and second colour temperature；Judge whether second color temperature difference is more than default second color temperature difference threshold value；If so, first colour temperature is then arranged to the second target colour temperature；If it is not, second colour temperature is then arranged to the second target colour temperature.
- 8. a kind of device for carrying out blank level adjustment in a mobile device, it is characterised in that the mobile equipment has at least one A camera, at least one independent color sensor, the color sensor include the first color sensor and the second color Sensor, the camera include the first camera for being placed in mobile equipment rear end, and, it is placed in the second of mobile front equipment end Camera, the camera include image sensing processor, and described device includes：Starting module, for when receiving the enabled instruction of camera, starting the color sensor, and described first takes the photograph As head or the second camera；First colour temperature computing module, for calculating the first colour temperature by the color sensor；Wherein, first colour temperature includes First sensor colour temperature and second sensor colour temperature；First blank level adjustment module, for carrying out blank level adjustment to the camera being currently up according to first colour temperature, Including：First object colour temperature chooses submodule, for choosing first object colour temperature from first colour temperature；First adjustment submodule, for using image sensing processor of the first object colour temperature to the camera being currently up Carry out blank level adjustment；Wherein, the first object colour temperature is chosen submodule and is included：First color temperature difference calculating sub module, for calculating between the first sensor colour temperature and the second sensor colour temperature First color temperature difference；First judging submodule, for judging whether first color temperature difference is more than default first color temperature difference threshold value；If so, then Perform first and submodule is set, if it is not, then calling the second acquisition submodule；First sets submodule, for the second sensor colour temperature to be arranged to first object colour temperature；Second acquisition submodule, for obtaining the brightness of the first camera institute Environment Oriented；Second sets submodule, for that when the brightness is within default brightness range, will be located at target image sensing First colour temperature of the reason affiliated plane of device is arranged to first object colour temperature；Target image sensing processor is taking the photograph of being currently up As the image sensing processor of head.
- 9. device according to claim 8, it is characterised in that the color sensor and described image sensing processor face To same direction.
- 10. device according to claim 8, it is characterised in that the first colour temperature computing module includes：First acquisition submodule, for driving the color sensor to obtain color component；Calculating sub module, for calculating the first colour temperature using the color component.
- 11. according to the device described in claim 8 or 9 or 10, it is characterised in that first camera includes the first image sense Processor is answered, the second camera includes the second image sensing processor；First color sensor senses processor towards same direction with described first image；Second color sensor and the second image sensing processor are towards same direction.
- 12. according to the devices described in claim 11, it is characterised in thatThe color component includes：The first color component obtained by first color sensor, and, the obtained by second color sensor Two color components；First colour temperature includes：The first sensor colour temperature calculated by first color component, and, second calculated by second color component Sensor colour temperature.
- 13. according to the device described in claim 8 or 9 or 10 or 12, it is characterised in that further include：Image data acquisition module, for driving the camera being currently up to obtain view data；Second colour temperature computing module, for calculating the second colour temperature using described image data；Second target colour temperature chooses module, for choosing the second target colour temperature from first colour temperature and second colour temperature；Second blank level adjustment module, for carrying out white balance tune to the camera being currently up according to the second target colour temperature It is whole.
- 14. device according to claim 13, it is characterised in that the second target colour temperature, which chooses module, to be included：Second color temperature difference calculating sub module, for calculating the second color temperature difference between first colour temperature and second colour temperature；Second judgment submodule, for judging whether second color temperature difference is more than default second color temperature difference threshold value；If so, then The 3rd setting submodule is performed, if it is not, then calling the 4th to set submodule；3rd sets submodule, for first colour temperature to be arranged to the second target colour temperature；4th sets submodule, for second colour temperature to be arranged to the second target colour temperature.
- 15. a kind of mobile equipment, it is characterised in that the mobile equipment has at least one camera, at least one independent Color sensor and white balance adjusting device, the color sensor include the first color sensor and the second color sensor；Institute Stating camera includes being placed in the first camera of mobile equipment rear end, and, it is placed in the second camera of mobile front equipment end, institute Stating camera includes image sensing processor；The white balance adjusting device includes：Starting module, for when receiving the enabled instruction of camera, starting the color sensor, and described first takes the photograph As head or the second camera；First colour temperature computing module, for calculating the first colour temperature by the color sensor；Wherein, first colour temperature includes First sensor colour temperature and second sensor colour temperature；First blank level adjustment module, for carrying out blank level adjustment to the camera being currently up according to first colour temperature, Including：First object colour temperature chooses submodule, for choosing first object colour temperature from first colour temperature；First adjustment submodule, for using image sensing processor of the first object colour temperature to the camera being currently up Carry out blank level adjustment；Wherein, the first object colour temperature is chosen submodule and is included：First color temperature difference calculating sub module, for calculating between the first sensor colour temperature and the second sensor colour temperature First color temperature difference；First judging submodule, for judging whether first color temperature difference is more than default first color temperature difference threshold value；If so, then Perform first and submodule is set, if it is not, then calling the second acquisition submodule；First sets submodule, for the second sensor colour temperature to be arranged to first object colour temperature；Second acquisition submodule, for obtaining the brightness of the first camera institute Environment Oriented；Second sets submodule, for that when the brightness is within default brightness range, will be located at target image sensing First colour temperature of the reason affiliated plane of device is arranged to first object colour temperature；Target image sensing processor is taking the photograph of being currently up As the image sensing processor of head.
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| CN107360410A (en) * | 2017-07-10 | 2017-11-17 | 广东欧珀移动通信有限公司 | Method for controlling white balance, device and terminal device |
| CN107343190A (en) | 2017-07-25 | 2017-11-10 | 广东欧珀移动通信有限公司 | White balance adjusting method, apparatus and terminal device |
| CN107734319B (en) * | 2017-11-28 | 2019-09-06 | Oppo广东移动通信有限公司 | Image white balancing treatment method and device, storage medium and electronic equipment |
| CN108063891B (en) * | 2017-12-07 | 2020-04-24 | Oppo广东移动通信有限公司 | Image processing method, image processing device, computer-readable storage medium and computer equipment |
| CN107920236A (en) * | 2017-12-18 | 2018-04-17 | 广东欧珀移动通信有限公司 | Image white balancing treatment method and device, storage medium and electronic equipment |
| CN108376539B (en) * | 2018-04-09 | 2019-12-10 | 青岛海信电器股份有限公司 | Image color compensation method and device |
| CN109451624B (en) * | 2018-10-26 | 2021-01-01 | 中国建筑科学研究院有限公司 | Spectrum adjusting method of multi-channel LED illuminating system |
| CN109379575B (en) * | 2018-11-28 | 2020-06-30 | 维沃移动通信（杭州）有限公司 | White balance processing method and mobile terminal |
| CN111163302B (en) * | 2019-12-24 | 2022-02-15 | Oppo广东移动通信有限公司 | Scene color restoration method, terminal and storage medium |
| CN111294576B (en) * | 2020-02-13 | 2021-11-09 | 展讯通信（上海）有限公司 | Automatic white balance processing method and device and electronic equipment |
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