CN107360410A - Method for controlling white balance, device and terminal device - Google Patents
Method for controlling white balance, device and terminal device Download PDFInfo
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- CN107360410A CN107360410A CN201710558404.6A CN201710558404A CN107360410A CN 107360410 A CN107360410 A CN 107360410A CN 201710558404 A CN201710558404 A CN 201710558404A CN 107360410 A CN107360410 A CN 107360410A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/80—Camera processing pipelines; Components thereof
- H04N23/84—Camera processing pipelines; Components thereof for processing colour signals
- H04N23/88—Camera processing pipelines; Components thereof for processing colour signals for colour balance, e.g. white-balance circuits or colour temperature control
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/10—Cameras or camera modules comprising electronic image sensors; Control thereof for generating image signals from different wavelengths
- H04N23/12—Cameras or camera modules comprising electronic image sensors; Control thereof for generating image signals from different wavelengths with one sensor only
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/80—Camera processing pipelines; Components thereof
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Abstract
The invention discloses a kind of method for controlling white balance, device and terminal device, wherein, this method includes：Determine the first color temperature value corresponding to the picture that camera currently gathers；According to default rule, it is determined that the first yield value corresponding with first color temperature value；Using first yield value as initial value, white balance adjusting is carried out to the picture currently gathered.Thus, the first color temperature value according to corresponding to the picture that camera currently gathers, and default rule are passed through, it is determined that suitable yield value is restrained as initial value, to carry out white balance adjusting, the problem of avoiding film flicker, the speed of white balance adjusting is improved, improves Consumer's Experience.
Description
Technical field
The present invention relates to camera technology field, more particularly to a kind of method for controlling white balance, device and terminal device.
Background technology
With the development of science and technology, the camera device such as camera, video camera be widely used in daily life, work,
In study, role is more and more important in people live.During using camera device shooting image, in order to ensure picture field
The real-playback of color in scape, it is necessary to be controlled to white balance.
Prior art, camera device is upon actuation, it is necessary to which yield value when camera device last time is exited is as initial value
Start to restrain, to carry out white balance adjusting.However, this white balance adjusting mode, if shooting when camera device last time exits
Scene differs larger with current photographed scene, then the time of white balance adjusting process consumption is longer, poor user experience.
The content of the invention
The purpose of the present invention is intended at least solve one of above-mentioned technical problem to a certain extent.
Therefore, the application proposes a kind of method for controlling white balance, by according to corresponding to the picture that camera currently gathers
First color temperature value, and default rule, it is determined that suitable yield value is restrained as initial value, to carry out white balance adjusting,
The problem of avoiding film flicker, the speed of white balance adjusting is improved, improves Consumer's Experience.
The application also proposes a kind of white balance control device.
The application also proposes a kind of terminal device.
The application also proposes a kind of computer-readable recording medium.
The application first aspect embodiment proposes a kind of method for controlling white balance, and methods described includes：
Determine the first color temperature value corresponding to the picture that camera currently gathers；
According to default rule, it is determined that the first yield value corresponding with first color temperature value；
Using first yield value as initial value, white balance adjusting is carried out to the picture currently gathered.
The method for controlling white balance that the embodiment of the present application provides, it is first determined the corresponding to the picture that camera currently gathers
Temperature value of the same colour, then according to default rule, it is determined that the first yield value corresponding with the first color temperature value, finally with the first yield value
For initial value, white balance adjusting is carried out to the picture currently gathered.Thus, it is corresponding by the picture currently gathered according to camera
The first color temperature value, and default rule, it is determined that suitable yield value is restrained as initial value, to carry out white balance tune
Section, the problem of avoiding film flicker, the speed of white balance adjusting is improved, improves Consumer's Experience.
The application second aspect embodiment proposes a kind of white balance control device, wherein, the white balance control device bag
Include：
First determining module, the first color temperature value corresponding to the picture currently gathered for determining camera；
Second determining module, for according to default rule, it is determined that the first yield value corresponding with first color temperature value；
Adjustment module, for using first yield value as initial value, white balance to be carried out to the picture currently gathered
Regulation.
The white balance control device that the embodiment of the present application provides, it is first determined the corresponding to the picture that camera currently gathers
Temperature value of the same colour, then according to default rule, it is determined that the first yield value corresponding with the first color temperature value, finally with the first yield value
For initial value, white balance adjusting is carried out to the picture currently gathered.Thus, it is corresponding by the picture currently gathered according to camera
The first color temperature value, and default rule, it is determined that suitable yield value is restrained as initial value, to carry out white balance tune
Section, the problem of avoiding film flicker, the speed of white balance adjusting is improved, improves Consumer's Experience.
The application third aspect embodiment proposes a kind of terminal device, including：Housing, processor, memory, circuit board,
Power circuit and camera, wherein, the circuit board is placed in the interior volume that the housing surrounds, the processor and described
Memory is arranged on the circuit board；The power circuit, for each circuit or the device power supply for the terminal device；
The memory is used to store executable program code；The processor is by reading the executable journey stored in the memory
Sequence code, to run program corresponding with the executable program code, for performing white balance as described in relation to the first aspect
Control method.
The terminal device that the embodiment of the present application provides, it is first determined the first colour temperature corresponding to the picture that camera currently gathers
Value, then according to default rule, it is determined that the first yield value corresponding with the first color temperature value, is finally initial using the first yield value
Value, white balance adjusting is carried out to the picture currently gathered.Thus, by first according to corresponding to the picture that camera currently gathers
Color temperature value, and default rule, it is determined that suitable yield value is restrained as initial value, to carry out white balance adjusting, avoid
The problem of film flicker, the speed of white balance adjusting is improved, improve Consumer's Experience.
The application fourth aspect embodiment proposes a kind of computer-readable recording medium, is stored thereon with computer program,
Characterized in that, method for controlling white balance as described in relation to the first aspect is realized when the program is executed by processor.
The embodiment of the present application provide computer-readable recording medium, can be arranged on it is any need carry out white balance control
Terminal in, when carrying out white balance control, by performing the method for controlling white balance that stores thereon, it is possible to achieve according to shooting
First color temperature value corresponding to the picture that head currently gathers, and default rule, it is determined that suitable yield value is carried out as initial value
Convergence, to carry out white balance adjusting, the problem of avoiding film flicker, the speed of white balance adjusting is improved, improves user
Experience.
The additional aspect of the present invention and advantage will be set forth in part in the description, and will partly become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Brief description of the drawings
Of the invention above-mentioned and/or additional aspect and advantage will become from the following description of the accompanying drawings of embodiments
Substantially and it is readily appreciated that, wherein：
Fig. 1 is the flow chart of the method for controlling white balance of the application one embodiment；
Fig. 2 is the flow chart of the method for controlling white balance of the application another embodiment；
Fig. 3 is the flow chart of the method for controlling white balance of the application another embodiment；
Fig. 4 is the structure chart of the white balance control device of the application one embodiment；
Fig. 5 is the structure chart of the white balance control device of the application another embodiment；
Fig. 6 is the structure chart of the terminal device of the application one embodiment.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
Below with reference to the accompanying drawings white control method, device and the terminal device of the embodiment of the present invention are described.
Generally, it just can determine that current picture, it is necessary to according to the colour temperature of continuous multiple frames picture in camera device shooting image
Color temperature value, and then determine present image carry out white balance adjusting when corresponding white balance gains value.
Aforesaid way, due to determining that the colour temperature of current picture need to take some time, therefore the time of white balance adjusting
Also it is longer.Therefore, in the embodiment of the present application, initial value can be pre-set, so that when camera device shoots present image, can
So that convergence directly is adjusted to the white balance of present image with initial value, so as to shorten the time of white balance adjusting.
Prior art, camera device is upon actuation, it is necessary to which yield value when camera device last time is exited is as initial value
Start to restrain, to carry out white balance adjusting.And this mode, photographed scene when being exited due to camera device last time are clapped with current
Taking the photograph scene may be different, may be because not which results in the yield value of photographed scene when being exited using last time as initial value
Colour temperature difference with scene is larger, the problem of film flicker occurs.And using last time exit when photographed scene yield value as
Initial value, initial value may differ larger with target gain value, wherein, the color that target gain value refers in image scene can be true
True weight corresponding yield value now.During due to being restrained since initial value, the adjustment to yield value is gradually carried out, initial value
Differ bigger with target gain value, the time of white balance adjusting consumption is longer, then according to existing way, carries out white balance adjusting
When, not only easily there is the problem of film flicker, the time of white balance adjusting also can be longer, poor user experience.
Various embodiments of the present invention are in view of the above-mentioned problems, propose a kind of method for controlling white balance.Determine that camera is current first
First color temperature value corresponding to the picture of collection, then according to default rule, it is determined that the first gain corresponding with the first color temperature value
Value, then using the first yield value as initial value, white balance adjusting is carried out to the picture currently gathered.By currently being adopted according to camera
First color temperature value corresponding to the picture of collection, and default rule, it is determined that suitable yield value is restrained as initial value, to enter
Row white balance adjusting, the problem of avoiding film flicker, the speed of white balance adjusting is improved, improves Consumer's Experience.
The method for controlling white balance of the embodiment of the present application is illustrated with reference to Fig. 1.
Fig. 1 is the flow chart of the method for controlling white balance of the application one embodiment.
As shown in figure 1, this method includes：
Step 101, the first color temperature value corresponding to the picture that camera currently gathers is determined.
Wherein, method for controlling white balance provided in an embodiment of the present invention, can be by white balance provided in an embodiment of the present invention
Control device performs.Specifically, the white balance control device, can be configured in any terminal with image camera function and set
In standby.Wherein, the type of terminal device is a lot, can be selected according to using needs, such as：Mobile phone, computer, camera etc..
It should be noted that method for controlling white balance provided in an embodiment of the present invention, after being applicable not only to camera startup,
The scene of white balance adjusting is carried out, after being also applied for camera one two field picture of shooting, when shooting next two field picture again, is carried out white
The scene of balance adjustment, is not restricted herein.
Specifically, the first color temperature value corresponding to the picture that camera currently gathers can be determined by a variety of methods.
Method one
According to color temperature value corresponding to each white blocks included in the picture currently gathered, it is determined that the picture currently gathered is corresponding
The first color temperature value.
Specifically, can be according to following steps, it is determined that the white blocks that the picture currently gathered includes.
Step 101a, the picture that camera is currently gathered, it is divided into M*N blocks, and counts the number of white pixel in each piece
Amount and the R (red) of white pixel, G (green), B (indigo plant) passage component average.
It should be noted that a color gamut can be pre-set, when the color of certain pixel is in default scope
When, you can it is white pixel to think the pixel.
Step 101b, a scope is pre-set, when the quantity for the white pixel point that certain block includes accounts for the block pixel
When the ratio of total quantity is not in default scope, then the block is abandoned.
It is understood that when the white pixel point that certain block includes is less, it is believed that the block is not white blocks；When
When the white pixel point that certain block includes is too many, represent the possible overexposure of the block, then can be less or excessive by white pixel point
Block abandon, remaining piece be white blocks.
Specifically, determine white blocks that the picture currently gathered includes and its including white pixel corresponding to R, G,
After the average of the component of channel B, you can according to colour temperature curve, colour temperature corresponding to white blocks is determined, so as to by most of white blocks
Corresponding color temperature value, it is defined as the first color temperature value corresponding to the picture that camera currently gathers.
Method two
According to color temperature value corresponding to the region where target reference object in the picture currently gathered, it is determined that currently gather
First color temperature value corresponding to picture.
Specifically, in the picture currently gathered, multiple objects may be included, in embodiments of the present invention, can be according to institute
Region where the target reference object to be shot, it is determined that the first color temperature value corresponding to the picture currently gathered.
Such as in the picture currently gathered, including personage and scenery, and target reference object is personage, and personage is located at
Medium position in picture.Then in the embodiment of the present invention, color temperature value corresponding to the central region where personage can be defined as
First color temperature value corresponding to the picture currently gathered.
Step 102, according to default rule, it is determined that the first yield value corresponding with the first color temperature value.
Wherein, default rule, can be arranged as required to.Such as instruction that can be according to user or other triggerings
Condition is set, and is not construed as limiting herein.
Yield value, the yield value of tri- passages of R, G, B in the image that imaging sensor obtains can be included.
Specifically, the mapping relations of the first color temperature value and the first yield value can be pre-set, then it is determined that camera is worked as
After first color temperature value corresponding to the picture of preceding collection, the first yield value can be determined according to default mapping relations.
Or can according to camera gather former frame picture corresponding to the second color temperature value, the difference with the first color temperature value
Value, it is determined that the first yield value corresponding with the first color temperature value.
For example a difference threshold can be pre-set, and initial yield value.In the first color temperature value and the second color temperature value
When difference is less than default difference threshold, then by yield value corresponding to the former frame picture of camera collection, it is defined as the first increasing
Benefit value, when the difference of the first color temperature value and the second color temperature value is more than or equal to default difference threshold, then by initial yield value, really
It is set to the first yield value.
Wherein, difference threshold, initial yield value, can be arranged as required to.For example rule of thumb will can initially it increase
Beneficial value is arranged to the yield value under D50 colour temperatures, or according to other conditions, difference threshold and initial yield value are configured, this
Place is not restricted.
In addition, do not changed in terminal taking current picture and position during former frame picture, or terminal currently gathers
Picture and former frame picture when not changing, it is believed that the colour temperature of the current picture and previous frame picture of camera collection
Difference is less than default difference range, so as to which the former frame picture of camera collection is corresponded into yield value, is defined as the first gain
Value.
If it should be noted that the method for controlling white balance, after starting applied to camera, i.e., camera currently gathers
Picture, the first frame picture gathered after starting for camera, then photographed scene when can be exited according to camera last time are corresponding
Color temperature value, the difference with the first color temperature value determines the first yield value corresponding to the first colour temperature, its realization principle and above-mentioned introduction
Similar, here is omitted.
Step 103, using the first yield value as initial value, white balance adjusting is carried out to the picture currently gathered.
Generally, the R in image in the color vector of all pixels point, the averages of tri- components of G, B tend to balance (1:1:1)
When, corresponding yield value is accurate target gain value.
Specifically, after the first yield value is determined, you can start to restrain using the first yield value as initial value, with to current
The picture of collection carries out white balance adjusting.
During specific implementation, when carrying out white balance adjusting, because human eye is for belonging to the light of green wavelength in frequency spectrum
(480nm-600nm) susceptibility highest, and the green pixel gathered in Bayer (Bayer) array is counted out at most, it is possible to
The yield value of green component is fixed, the yield value of red component and blue component is then adjusted, realizes to red component and indigo plant
The adjustment of colouring component, so that the R in image in the color vector of all pixels point, the averages of tri- components of G, B tends to balance (1:
1:1), so as to realizing the real-playback of the color in image scene.
It is understood that pass through method for controlling white balance provided in an embodiment of the present invention, the initial value of setting, with target
The gap of yield value is small, the problem of so as to avoid the occurrence of film flicker, reduces the time of white balance adjusting.
Method for controlling white balance provided in an embodiment of the present invention, it is first determined corresponding to the picture that camera currently gathers
Temperature value of the same colour, then according to default rule, it is determined that the first yield value corresponding with the first color temperature value, finally with the first yield value
For initial value, white balance adjusting is carried out to the picture currently gathered.Thus, it is corresponding by the picture currently gathered according to camera
The first color temperature value, and default rule, it is determined that suitable yield value is restrained as initial value, to carry out white balance tune
Section, the problem of avoiding film flicker, the speed of white balance adjusting is improved, improves Consumer's Experience.
With reference to Fig. 2, to method for controlling white balance provided in an embodiment of the present invention, it is further described.
Fig. 2 is the flow chart of the method for controlling white balance of another embodiment of the present invention.
As shown in Fig. 2 the method for controlling white balance, including：
Step 201, the color temperature value according to corresponding to each white blocks included in the picture currently gathered, it is determined that currently gather
First color temperature value corresponding to picture.
Step 202, according to default colour temperature and the mapping relations of yield value, it is determined that corresponding with the first color temperature value first increases
Benefit value.
Specifically, the mapping relations of the first color temperature value and the first yield value can be pre-set, then it is determined that camera is worked as
After first color temperature value corresponding to the picture of preceding collection, the first yield value can be determined according to default mapping relations.
As an example it is assumed that it is 0-1000 Kai Er to pre-set the first color temperature value corresponding to the picture that camera currently gathers
When literary (K), the first yield value is A；When first color temperature value is 1001K-2000K, the first yield value is B；First color temperature value is
During 2001K-3000K, the first yield value is C；Etc..Then if it is determined that the first color temperature value corresponding to the picture that camera currently gathers
For 2700K, then it is C that can determine the first yield value.
Step 203, using the first yield value as initial value, white balance adjusting is carried out to the picture currently gathered.
Wherein, the specific implementation process and principle of above-mentioned steps 201 and step 203, it is referred to walk in above-described embodiment
Rapid 101 and the associated description of step 103, here is omitted.
Method for controlling white balance provided in an embodiment of the present invention, first according to each white included in the picture currently gathered
Color temperature value corresponding to block, it is determined that the first color temperature value corresponding to the picture currently gathered, then according to default colour temperature and yield value
Mapping relations, it is determined that the first yield value corresponding with the first color temperature value, finally using the first yield value as initial value, to currently adopting
The picture of collection carries out white balance adjusting.Thus, by the first color temperature value according to corresponding to the picture that camera currently gathers, and in advance
If rule, it is determined that suitable yield value is restrained as initial value, to carry out white balance adjusting, avoid film flicker
Problem, the speed of white balance adjusting is improved, improves Consumer's Experience.
With reference to Fig. 3, to method for controlling white balance provided in an embodiment of the present invention, it is further described.
Fig. 3 is the flow chart of the method for controlling white balance of another embodiment of the present invention.
As shown in figure 3, the method for controlling white balance, including：
Step 301, according to the region where target reference object in the picture currently gathered, it is determined that the picture currently gathered
Corresponding first color temperature value.
Step 302, the second color temperature value, the difference with the first color temperature value according to corresponding to the former frame picture that camera gathers
Value, it is determined that the first yield value corresponding with the first color temperature value.
Wherein, yield value, the yield value of tri- passages of R, G, B in the image that imaging sensor obtains can be included.
Specifically, step 302 can pass through accomplished in many ways.
Method one
Pre-set a difference threshold, and initial yield value.It is less than in the difference of the first color temperature value and the second color temperature value
During default difference threshold, then by yield value corresponding to the former frame picture of camera collection, it is defined as the first yield value, the
When temperature value of the same colour and the difference of the second color temperature value are more than or equal to default difference threshold, then by initial yield value, it is defined as first
Yield value.
Wherein, difference threshold, initial yield value, can be arranged as required to.For example rule of thumb will can initially it increase
Beneficial value is arranged to the yield value under D50 colour temperatures, or according to other conditions, difference threshold and initial yield value are configured, this
Place is not restricted.
As an example it is assumed that difference threshold is 2000, initial yield value is the yield value under D50 colour temperatures, and camera gathers
Former frame picture corresponding to yield value be A, the first color temperature value corresponding to the picture that camera currently gathers be 4000.If shooting
When second color temperature value corresponding to the former frame picture of head collection is 2700, due to the difference of the first color temperature value and the second color temperature value
1300 are less than difference threshold 2000, then A can be defined as to the first yield value；If corresponding to the former frame picture of camera collection
When second color temperature value is 1700, because the difference 2300 of the first color temperature value and the second color temperature value is more than difference threshold 2000, then may be used
By the yield value under D50 colour temperatures, to be defined as the first yield value.
In addition, do not changed in terminal taking current picture and position during former frame picture, or terminal currently gathers
Picture and former frame picture when not changing, it is believed that the colour temperature of the current picture and previous frame picture of camera collection
Difference is less than default difference range, so as to which the former frame picture of camera collection is corresponded into yield value, is defined as the first gain
Value.
Method two
Second color temperature value corresponding to the former frame picture gathered according to camera, the difference with the first color temperature value, it is determined that increasing
Beneficial corrected value；
The second yield value and corrected value according to corresponding to former frame picture, determine the first yield value.
Wherein, gain correcting value, for by the second yield value, being corrected to the first yield value.
Accordingly, it is determined that before the first color temperature value corresponding to the picture currently gathered, can also include：
When shooting former frame picture, the second yield value corresponding with former frame picture is recorded.
During specific implementation, the difference of the first colour temperature and the second colour temperature can be pre-set, it is corresponding with gain correcting value to close
System, can be according to the first colour temperature and the difference of the second colour temperature, it is determined that increasing so as to it is determined that after the first color temperature value and the second color temperature value
Beneficial corrected value, and by gain correcting value, the first yield value is worth to according to the second gain.
As an example it is assumed that when the difference for pre-setting the first color temperature value and the second color temperature value is 0-2000K, gain calibration
It is worth for 0；When the difference of first color temperature value and the second color temperature value is 2001K-2500K, gain correcting value 1；First color temperature value with
When the difference of second color temperature value is 2501K-3000K, gain correcting value is 2, etc..If it is determined that the picture that camera currently gathers
Corresponding first color temperature value is 2700K, and the second color temperature value corresponding to the former frame picture of camera collection is 4500K, former frame
Second yield value corresponding to picture is A, then can be and default according to the first color temperature value and the difference 1800K of the second color temperature value
Corresponding relation, it is 0 to determine gain correcting value, i.e. the first yield value is still A.
If it should be noted that above-mentioned method for controlling white balance, after starting applied to camera, i.e., camera currently gathers
Picture, the first frame picture for gathering after starting for camera, then the photographed scene pair when can be exited according to camera last time
The color temperature value answered, the difference with the first color temperature value, the first yield value corresponding to the first colour temperature is determined, its realization principle is with above giving an account of
Continue similar, here is omitted.
In addition, the method for the above-mentioned yield value of determination first, is only schematically illustrated, it is impossible to as to technical scheme
Limitation, those skilled in the art on this basis, can be as needed, arbitrarily sets according to the first color temperature value and the second colour temperature
The difference of value, the method for determining the first yield value, is not construed as limiting to this herein.
Step 303, using the first yield value as initial value, white balance adjusting is carried out to the picture currently gathered.
Wherein, the specific implementation process and principle of above-mentioned steps 301 and step 303, it is referred to walk in above-described embodiment
Rapid 101 and the associated description of step 103, here is omitted.
Method for controlling white balance provided in an embodiment of the present invention, first according to target reference object in the picture currently gathered
The region at place, it is determined that the first color temperature value corresponding to the picture currently gathered, the former frame picture then gathered according to camera
Corresponding second color temperature value, the difference with the first color temperature value, it is determined that the first yield value corresponding with the first color temperature value, finally with
One yield value is initial value, and white balance adjusting is carried out to the picture currently gathered.Thus, by currently being gathered according to camera
First color temperature value corresponding to picture, and default rule, it is determined that suitable yield value is restrained as initial value, it is white to carry out
Balance adjustment, the problem of avoiding film flicker, the speed of white balance adjusting is improved, improves Consumer's Experience.
Fig. 4 is the structure chart of the white balance control device of the application one embodiment.
As shown in figure 4, the white balance control device, including：
First determining module 41, the first color temperature value corresponding to the picture currently gathered for determining camera；
Second determining module 42, for according to default rule, it is determined that the first yield value corresponding with the first color temperature value；
Adjustment module 43, for using the first yield value as initial value, white balance adjusting to be carried out to the picture currently gathered.
Wherein, the white balance control device that the present embodiment provides, can perform white balance control provided in an embodiment of the present invention
Method processed.Specifically, the white balance control device, can be configured in any terminal device with image camera function.
Wherein, the type of terminal device is a lot, can be selected according to using needs, such as：Mobile phone, computer, camera etc..
In a kind of possible way of realization of the present embodiment, above-mentioned second determining module 42, it is specifically used for：
According to default colour temperature and the mapping relations of yield value, it is determined that the first yield value corresponding with the first color temperature value；
Or the second color temperature value according to corresponding to the former frame picture that camera gathers, the difference with the first color temperature value, really
Fixed the first yield value corresponding with the first color temperature value.
In the alternatively possible way of realization of the present embodiment, above-mentioned second determining module 42, it is additionally operable to：
According to the difference of the first color temperature value and the second color temperature value, gain correcting value is determined；
The second yield value and corrected value according to corresponding to former frame picture, determine the first yield value.
It should be noted that the explanation in previous embodiment to method for controlling white balance embodiment is also applied for the reality
The white balance control device of example is applied, here is omitted.
The white balance control device that the embodiment of the present application provides, it is first determined the corresponding to the picture that camera currently gathers
Temperature value of the same colour, then according to default rule, it is determined that the first yield value corresponding with the first color temperature value, finally with the first yield value
For initial value, white balance adjusting is carried out to the picture currently gathered.Thus, it is corresponding by the picture currently gathered according to camera
The first color temperature value, and default rule, it is determined that suitable yield value is restrained as initial value, to carry out white balance tune
Section, the problem of avoiding film flicker, the speed of white balance adjusting is improved, improves Consumer's Experience.
Fig. 5 is the structure chart of the white balance control device of the application another embodiment.
As shown in figure 5, on the basis of shown in Fig. 4, the white balance control device, in addition to：
Logging modle 51, for when shooting former frame picture, recording the second yield value corresponding with former frame picture.
It should be noted that the explanation in previous embodiment to method for controlling white balance embodiment is also applied for the reality
The white balance control device of example is applied, here is omitted.
The white balance control device that the embodiment of the present application provides, it is first determined the corresponding to the picture that camera currently gathers
Temperature value of the same colour, then according to default rule, it is determined that the first yield value corresponding with the first color temperature value, finally with the first yield value
For initial value, white balance adjusting is carried out to the picture currently gathered.Thus, it is corresponding by the picture currently gathered according to camera
The first color temperature value, and default rule, it is determined that suitable yield value is restrained as initial value, to carry out white balance tune
Section, the problem of avoiding film flicker, the speed of white balance adjusting is improved, improves Consumer's Experience.
Further aspect of the present invention embodiment also proposes a kind of terminal device.
Fig. 6 is the structure chart for the terminal device that the application one embodiment provides.
Wherein, the type of terminal device is a lot, can be selected according to using needs, such as：Mobile phone, computer, camera
Deng.Fig. 6 is illustrated by mobile phone of terminal device.
As shown in fig. 6, the terminal device includes：Housing 601, processor 602, memory 603, circuit board 604, power supply electricity
Road 605 and camera 606, wherein, circuit board 604 is placed in the interior volume that housing 601 surrounds, processor 602 and memory
603 are arranged on circuit board 604；Power circuit 605, for each circuit or the device power supply for terminal device；Memory 603
For storing executable program code；Processor 602 is by reading the executable program code stored in memory 603, to transport
Row program corresponding with executable program code, for performing such as the method for controlling white balance in previous embodiment.
It should be noted that the foregoing explanation to method for controlling white balance embodiment is also applied for the end of the embodiment
End equipment, its realization principle is similar, and here is omitted.
The terminal device that the embodiment of the present application provides, it is first determined the first colour temperature corresponding to the picture that camera currently gathers
Value, then according to default rule, it is determined that the first yield value corresponding with the first color temperature value, is finally initial using the first yield value
Value, white balance adjusting is carried out to the picture currently gathered.Thus, by first according to corresponding to the picture that camera currently gathers
Color temperature value, and default rule, it is determined that suitable yield value is restrained as initial value, to carry out white balance adjusting, avoid
The problem of film flicker, the speed of white balance adjusting is improved, improve Consumer's Experience.
For the above-mentioned purpose, the embodiment of the present application proposes a kind of computer-readable recording medium, is stored thereon with calculating
Machine program, realized when the program is executed by processor such as the method for controlling white balance in previous embodiment.
The embodiment of the present application provide computer-readable recording medium, can be arranged on it is any need carry out white balance control
Terminal in, when carrying out white balance control, by performing the method for controlling white balance that stores thereon, it is possible to achieve according to shooting
First color temperature value corresponding to the picture that head currently gathers, and default rule, it is determined that suitable yield value is carried out as initial value
Convergence, to carry out white balance adjusting, the problem of avoiding film flicker, the speed of white balance adjusting is improved, improves user
Experience.
For the above-mentioned purpose, the embodiment of the present application proposes a kind of computer program product, when the computer program produces
When instruction processing unit in product performs, perform such as the method for controlling white balance in previous embodiment.
The computer program product that the embodiment of the present application provides, any end for needing to carry out white balance control can be arranged on
In end, when carrying out white balance control, by the program for performing corresponding method for controlling white balance, it is possible to achieve worked as according to camera
First color temperature value corresponding to the picture of preceding collection, and default rule, it is determined that suitable yield value is restrained as initial value,
To carry out white balance adjusting, the problem of avoiding film flicker, the speed of white balance adjusting is improved, improves Consumer's Experience.
It should be noted that herein, such as first and second or the like relational terms are used merely to a reality
Body or operation make a distinction with another entity or operation, and not necessarily require or imply and deposited between these entities or operation
In any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to
Nonexcludability includes, so that process, method, article or equipment including a series of elements not only will including those
Element, but also the other element including being not expressly set out, or it is this process, method, article or equipment also to include
Intrinsic key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that
Other identical element also be present in process, method, article or equipment including the key element.
Expression or logic and/or step described otherwise above herein in flow charts, for example, being considered use
In the order list for the executable instruction for realizing logic function, may be embodied in any computer-readable medium, for
Instruction execution system, device or equipment (such as computer based system including the system of processor or other can be held from instruction
The system of row system, device or equipment instruction fetch and execute instruction) use, or combine these instruction execution systems, device or set
It is standby and use.For the purpose of this specification, " computer-readable medium " can any can be included, store, communicate, propagate or pass
Defeated program is for instruction execution system, device or equipment or the dress used with reference to these instruction execution systems, device or equipment
Put.The more specifically example (non-exhaustive list) of computer-readable medium includes following：Electricity with one or more wiring
Connecting portion (electronic installation), portable computer diskette box (magnetic device), random access memory (RAM), read-only storage
(ROM), erasable edit read-only storage (EPROM or flash memory), fiber device, and portable optic disk is read-only deposits
Reservoir (CDROM).In addition, computer-readable medium, which can even is that, to print the paper of described program thereon or other are suitable
Medium, because can then enter edlin, interpretation or if necessary with it for example by carrying out optical scanner to paper or other media
His suitable method is handled electronically to obtain described program, is then stored in computer storage.
It should be appreciated that each several part of the present invention can be realized with hardware, software, firmware or combinations thereof.Above-mentioned
In embodiment, software that multiple steps or method can be performed in memory and by suitable instruction execution system with storage
Or firmware is realized.If, and in another embodiment, can be with well known in the art for example, realized with hardware
Any one of row technology or their combination are realized：With the logic gates for realizing logic function to data-signal
Discrete logic, have suitable combinational logic gate circuit application specific integrated circuit, programmable gate array (PGA), scene
Programmable gate array (FPGA) etc..
It should be noted that in the description of this specification, reference term " one embodiment ", " some embodiments ", " show
The description of example ", " specific example " or " some examples " etc. mean to combine the specific features of the embodiment or example description, structure,
Material or feature are contained at least one embodiment or example of the present invention.In this manual, above-mentioned term is shown
The statement of meaning property is necessarily directed to identical embodiment or example.Moreover, specific features, structure, material or the spy of description
Point can combine in an appropriate manner in any one or more embodiments or example.In addition, in the case of not conflicting,
Those skilled in the art can be by the different embodiments or example described in this specification and different embodiments or example
Feature is combined and combined.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.Moreover, specific features, structure, material or the feature of description can be with office
Combined in an appropriate manner in one or more embodiments or example.In addition, in the case of not conflicting, the skill of this area
Art personnel can be tied the different embodiments or example and the feature of different embodiments or example described in this specification
Close and combine.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changed, replacing and modification.
Claims (10)
- A kind of 1. method for controlling white balance, it is characterised in that including：Determine the first color temperature value corresponding to the picture that camera currently gathers；According to default rule, it is determined that the first yield value corresponding with first color temperature value；Using first yield value as initial value, white balance adjusting is carried out to the picture currently gathered.
- 2. method as claimed in claim 1, it is characterised in that it is described according to default rule, it is determined that with first color temperature value Corresponding first yield value, including：According to default colour temperature and the mapping relations of yield value, it is determined that the first yield value corresponding with first color temperature value；Or the second color temperature value according to corresponding to the former frame picture that the camera gathers, the difference with first color temperature value Value, it is determined that the first yield value corresponding with first color temperature value.
- 3. method as claimed in claim 2, it is characterised in that the former frame picture gathered according to the camera is corresponding The second color temperature value, the difference with first color temperature value, it is determined that the first yield value corresponding with first color temperature value, bag Include：According to the difference of first color temperature value and second color temperature value, gain correcting value is determined；According to the second yield value and the corrected value corresponding to the former frame picture, first yield value is determined.
- 4. the method as described in power wants 3, it is characterised in that the first color corresponding to the picture for determining camera and currently gathering Before temperature value, in addition to：When shooting the former frame picture, the second yield value corresponding with the former frame picture is recorded.
- A kind of 5. white balance control device, it is characterised in that including：First determining module, the first color temperature value corresponding to the picture currently gathered for determining camera；Second determining module, for according to default rule, it is determined that the first yield value corresponding with first color temperature value；Adjustment module, for using first yield value as initial value, white balance adjusting to be carried out to the picture currently gathered.
- 6. device as claimed in claim 5, it is characterised in that second determining module, be specifically used for：According to default colour temperature and the mapping relations of yield value, it is determined that the first yield value corresponding with first color temperature value；Or the second color temperature value according to corresponding to the former frame picture that the camera gathers, the difference with first color temperature value Value, it is determined that the first yield value corresponding with first color temperature value.
- 7. device as claimed in claim 6, it is characterised in that second determining module, be additionally operable to：According to the difference of first color temperature value and second color temperature value, gain correcting value is determined；According to the second yield value and the corrected value corresponding to the former frame picture, first yield value is determined.
- 8. device as claimed in claim 7, it is characterised in that also include：Logging modle, for when shooting the former frame picture, recording the second yield value corresponding with the former frame picture.
- A kind of 9. terminal device, it is characterised in that including：Housing, processor, memory, circuit board, power circuit and shooting Head, wherein, the circuit board is placed in the interior volume that the housing surrounds, and the processor and the memory are arranged on institute State on circuit board；The power circuit, for each circuit or the device power supply for the terminal device；The memory is used for Store executable program code；The processor is by reading the executable program code stored in the memory, to run Program corresponding with the executable program code, for performing the white balance control as described in any in claim 1-4 Method.
- 10. a kind of computer-readable recording medium, is stored thereon with computer program, it is characterised in that the program is by processor The method for controlling white balance as described in any in claim 1-4 is realized during execution.
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| CN201710558404.6A CN107360410A (en) | 2017-07-10 | 2017-07-10 | Method for controlling white balance, device and terminal device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710558404.6A CN107360410A (en) | 2017-07-10 | 2017-07-10 | Method for controlling white balance, device and terminal device |
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| CN201710558404.6A Pending CN107360410A (en) | 2017-07-10 | 2017-07-10 | Method for controlling white balance, device and terminal device |
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| CN107959839A (en) * | 2017-11-27 | 2018-04-24 | 努比亚技术有限公司 | A kind of method of blank level adjustment, terminal and computer-readable recording medium |
| CN108174173A (en) * | 2017-12-25 | 2018-06-15 | 广东欧珀移动通信有限公司 | Image pickup method and device, computer readable storage medium and computer equipment |
| CN111107270A (en) * | 2019-12-31 | 2020-05-05 | 维沃移动通信有限公司 | Shooting method and electronic equipment |
| CN111641819A (en) * | 2020-05-19 | 2020-09-08 | 浙江大华技术股份有限公司 | Method, device, system and computer device for white balance gain correction |
| CN111641820A (en) * | 2020-05-21 | 2020-09-08 | Tcl华星光电技术有限公司 | White balance adjusting method and device of liquid crystal display panel |
| CN113545033A (en) * | 2020-02-13 | 2021-10-22 | 深圳元戎启行科技有限公司 | White balance control method, white balance control device, electronic equipment and computer-readable storage medium |
| CN114071106A (en) * | 2020-08-10 | 2022-02-18 | 合肥君正科技有限公司 | Cold-start rapid white balance method for low-power-consumption equipment |
| CN115002436A (en) * | 2021-03-02 | 2022-09-02 | 广州视源电子科技股份有限公司 | White balance adjusting method, system, device and storage medium |
| CN115334295A (en) * | 2022-08-10 | 2022-11-11 | 杭州联吉技术有限公司 | Image white balance processing method and electronic equipment |
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| CN111107270A (en) * | 2019-12-31 | 2020-05-05 | 维沃移动通信有限公司 | Shooting method and electronic equipment |
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| CN111641820B (en) * | 2020-05-21 | 2021-08-03 | Tcl华星光电技术有限公司 | White balance adjusting method and device of liquid crystal display panel |
| CN111641820A (en) * | 2020-05-21 | 2020-09-08 | Tcl华星光电技术有限公司 | White balance adjusting method and device of liquid crystal display panel |
| CN114071106A (en) * | 2020-08-10 | 2022-02-18 | 合肥君正科技有限公司 | Cold-start rapid white balance method for low-power-consumption equipment |
| CN114071106B (en) * | 2020-08-10 | 2023-07-04 | 合肥君正科技有限公司 | Cold start fast white balance method for low-power-consumption equipment |
| CN115002436A (en) * | 2021-03-02 | 2022-09-02 | 广州视源电子科技股份有限公司 | White balance adjusting method, system, device and storage medium |
| WO2023240444A1 (en) * | 2022-06-14 | 2023-12-21 | 北京小米移动软件有限公司 | Image processing method, apparatus and storage medium |
| CN115334295A (en) * | 2022-08-10 | 2022-11-11 | 杭州联吉技术有限公司 | Image white balance processing method and electronic equipment |
| CN115334295B (en) * | 2022-08-10 | 2024-05-03 | 杭州联吉技术有限公司 | Image white balance processing method and electronic equipment |
| WO2024092426A1 (en) * | 2022-10-31 | 2024-05-10 | 北京小米移动软件有限公司 | White-balance gain compensation method and apparatus, and electronic device |
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