CN106534814B - A kind of method and apparatus that dual camera picture quality is synchronous - Google Patents
A kind of method and apparatus that dual camera picture quality is synchronous Download PDFInfo
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- CN106534814B CN106534814B CN201610889484.9A CN201610889484A CN106534814B CN 106534814 B CN106534814 B CN 106534814B CN 201610889484 A CN201610889484 A CN 201610889484A CN 106534814 B CN106534814 B CN 106534814B
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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
- H04N23/13—Cameras or camera modules comprising electronic image sensors; Control thereof for generating image signals from different wavelengths with multiple sensors
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/64—Circuits for processing colour signals
Abstract
The invention discloses a kind of synchronous methods and apparatus of dual camera picture quality, its method the following steps are included: S1. the first camera generate the first camera image when, the image quality parameter of first camera image is denoted as the first image quality parameter by the image quality parameter for obtaining the first camera image；The image quality parameter of the second camera is denoted as the second image quality parameter by the image quality parameter that second camera is S2. calculated according to the first image quality parameter；S3. second camera is written into the second image quality parameter；S4. second camera exports second camera image according to the second image quality parameter.The present invention calculates the image quality parameter of secondary camera using the image quality parameter of main camera, or the image quality parameter of main camera is calculated using the image quality parameter of secondary camera, to ensure that the consistency of main camera and secondary camera image quality, the usage experience of user is improved.
Description
Technical field
The present invention relates to technical field of imaging, more particularly to a kind of synchronous method of dual camera picture quality and set
It is standby.
Background technique
With popularizing for smart machine, requirement of the people to smart machine is also higher and higher, the hardware configuration of smart machine
Horizontal also higher and higher, more and more smart machines are configured with dual camera.Currently, configured with the smart machine of dual camera
In, when major-minor camera works at the same time, the consistency of the picture quality of two camera imagings, which becomes, influences user experience
One key factor.It will be seen from figure 1 that main camera generates image, and picture quality is only in current dual camera imaging
It is influenced by current environment；Secondary camera generates image, and picture quality is also only influenced by current environment；To cause major-minor to image
It is first-born at picture quality it is inconsistent or coincidence of need is not achieved.
Summary of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of synchronous methods of dual camera picture quality
And equipment, it ensure that the consistency of main camera and secondary camera image quality.
The purpose of the present invention is achieved through the following technical solutions: a kind of side that dual camera picture quality is synchronous
Method, comprising the following steps: when the first camera generates the first camera image, obtain the picture quality of the first camera image
The image quality parameter of first camera image is denoted as the first image quality parameter by parameter；According to the first image quality parameter
The image quality parameter of the second camera is denoted as the second picture quality ginseng by the image quality parameter for calculating second camera
Number；Second camera is written into second image quality parameter；Second camera is taken the photograph according to the second image quality parameter output second
As head image.
The image quality parameter of the second camera be according to the first image quality parameter in the way of segmented fitting
It obtains.
The segmented fitting includes conic fitting mode and Cubic Curve Fitting mode.
The first image mass parameter includes time for exposure and ISO value, and the second image quality parameter includes the time for exposure
With ISO value.
First camera is main camera, and second camera is secondary camera.
First camera is secondary camera, and second camera is main camera.
A kind of equipment that dual camera picture quality is synchronous, comprising: the first camera, for generating the first camera figure
Picture；Picture quality synchronization parameter module, for obtaining the image quality parameter of the first camera image, by the first camera image
Image quality parameter be denoted as the first image quality parameter, and the figure of second camera is calculated according to the first image quality parameter
As mass parameter, the image quality parameter of the second camera is denoted as the second image quality parameter；Second camera is used for root
Second camera image is exported according to the second image quality parameter.
Described image quality synchronization parameter module is calculated in the way of segmented fitting according to the first image quality parameter
The image quality parameter of second camera.
First camera is main camera, and second camera is secondary camera.
First camera is secondary camera, and second camera is main camera.
The beneficial effects of the present invention are: the present invention calculates the image of secondary camera using the image quality parameter of main camera
Mass parameter, or the image quality parameter of main camera is calculated using the image quality parameter of secondary camera, to ensure that master
The consistency of camera and secondary camera image quality, improves the usage experience of user.
Detailed description of the invention
Fig. 1 is dual camera picture quality control block diagram in the prior art；
Fig. 2 is a kind of flow chart of the synchronous method of dual camera picture quality of the present invention；
Fig. 3 is a schematic diagram of time for exposure segmented fitting；
Fig. 4 is dual camera picture quality control block diagram in the present invention.
Specific embodiment
Technical solution of the present invention is described in further detail with reference to the accompanying drawing, but protection scope of the present invention is not limited to
It is as described below.
As shown in Fig. 2, a kind of method that dual camera picture quality is synchronous, comprising the following steps:
When the first camera generates the first camera image, the image quality parameter of the first camera image is obtained, it will
The image quality parameter of first camera image is denoted as the first image quality parameter.
The image quality parameter that second camera is calculated according to the first image quality parameter, by the figure of the second camera
As mass parameter is denoted as the second image quality parameter.
The image quality parameter of the second camera be according to the first image quality parameter in the way of segmented fitting
It obtains.
The segmented fitting includes but is not limited to conic fitting mode and Cubic Curve Fitting mode.
The first image mass parameter includes time for exposure and ISO value, and the second image quality parameter includes the time for exposure
With ISO value.Further, the first image quality parameter further includes white balance and aperture size etc., and the second image quality parameter is also
Including white balance and aperture size etc..
One embodiment of segmented fitting are as follows: the present embodiment by according to the time for exposure of main camera by segmented fitting in terms of
The time for exposure for calculating secondary camera is illustrated, and time for exposure and ISO value codetermine brightness of image, and picture quality is consistent, i.e.,
Brightness of image is consistent.The expression formula of segmented fitting:
Due to:
The brightness of main camera=main camera time for exposure+main camera ISO value；
The brightness of secondary camera=pair camera time for exposure+pair camera ISO value；
The brightness of the brightness of main camera=pair camera；
So:
Brightness of image=K1 of secondary camera × main camera time for exposure+K2 × main camera ISO value；
K1, K2 are coefficient, and value needs to obtain in actual scene by experiment；
The time for exposure of secondary camera=K1 × main camera time for exposure；
ISO value=K2 × main camera ISO value of secondary camera.
The time for exposure is taken the photograph as 40ms when main, and when ISO is 200, master has taken the photograph corresponding brightness of image under this parameter, passes through
Adjusting K1, K2, which can be obtained, takes the photograph image with the main pair for taking the photograph identical image brightness；
The time for exposure is taken the photograph as 50ms when main, and when ISO is 200, master has taken the photograph corresponding brightness of image under this parameter, passes through
Adjusting K1, K2, which can be obtained, takes the photograph image with the main pair for taking the photograph identical image brightness；
The time for exposure is taken the photograph as 50ms when main, and when ISO is 400, master has taken the photograph corresponding brightness of image under this parameter, passes through
Adjusting K1, K2, which can be obtained, takes the photograph image with the main pair for taking the photograph identical image brightness.
Fig. 3 is a schematic diagram of time for exposure segmented fitting, and every section of slope is determined by K1；The exposure of main camera
The value of time can be the other values other than schematic diagram, be not can only have four fitting broken lines, such as the exposure of main camera
One section can be separated again according to the actual situation between 40ms to 50ms between light time or multistage broken line is fitted.
S3. second camera is written into the second image quality parameter；
S4. second camera exports second camera image according to the second image quality parameter.
The first image mass parameter includes that the second image quality parameter includes.
First camera is main camera, and second camera is secondary camera.
First camera is secondary camera, and second camera is main camera.
As shown in figure 4, the equipment that a kind of dual camera picture quality is synchronous, comprising: the first camera, for generating first
Camera image；Picture quality synchronization parameter module is taken the photograph for obtaining the image quality parameter of the first camera image by first
As the image quality parameter of head image is denoted as the first image quality parameter, and second is calculated according to the first image quality parameter and is taken the photograph
As the image quality parameter of head, the image quality parameter of the second camera is denoted as the second image quality parameter；Second camera shooting
Head, for exporting second camera image according to the second image quality parameter.
Described image quality synchronization parameter module is calculated in the way of segmented fitting according to the first image quality parameter
The image quality parameter of second camera.
The segmented fitting includes but is not limited to conic fitting mode and Cubic Curve Fitting mode.
First camera is main camera, and second camera is secondary camera.
First camera is secondary camera, and second camera is main camera.
The present invention increases picture quality synchronization parameter module on the basis of existing technology, the picture quality synchronization parameter
The image quality parameter of first camera is synchronized to second camera by module, so that the picture quality of second camera is protected always
It holds consistent with main camera, to improve the output effect of dual camera, improves the usage experience of user.
The above is only a preferred embodiment of the present invention, it should be understood that the present invention is not limited to described herein
Form should not be regarded as an exclusion of other examples, and can be used for other combinations, modifications, and environments, and can be at this
In the text contemplated scope, modifications can be made through the above teachings or related fields of technology or knowledge.And those skilled in the art institute into
Capable modifications and changes do not depart from the spirit and scope of the present invention, then all should be in the protection scope of appended claims of the present invention
It is interior.
Claims (6)
1. a kind of synchronous method of dual camera picture quality, it is characterised in that: the following steps are included:
When the first camera generates the first camera image, the image quality parameter of the first camera image is obtained, by first
The image quality parameter of camera image is denoted as the first image quality parameter；
The image quality parameter that second camera is calculated according to the first image quality parameter, by the image matter of the second camera
Amount parameter is denoted as the second image quality parameter；
Second camera is written into second image quality parameter；
Second camera exports second camera image according to the second image quality parameter；
The image quality parameter of the second camera is obtained in the way of segmented fitting according to the first image quality parameter；
The first image mass parameter includes time for exposure and ISO value, and the second image quality parameter includes time for exposure and ISO
Value；
The segmented fitting includes conic fitting mode and Cubic Curve Fitting mode.
2. a kind of synchronous method of dual camera picture quality according to claim 1, it is characterised in that: described first takes the photograph
Picture head is main camera, and second camera is secondary camera.
3. a kind of synchronous method of dual camera picture quality according to claim 1, it is characterised in that: described first takes the photograph
Picture head is secondary camera, and second camera is main camera.
4. a kind of synchronous equipment of dual camera picture quality, it is characterised in that: include:
First camera, for generating the first camera image；
Picture quality synchronization parameter module, for obtaining the image quality parameter of the first camera image, by the first camera figure
The image quality parameter of picture is denoted as the first image quality parameter, and the first image mass parameter includes time for exposure and ISO value；
And the image quality parameter of second camera is calculated according to the first image quality parameter, by the picture quality of the second camera
Parameter is denoted as the second image quality parameter, and the second image quality parameter includes time for exposure and ISO value；
Second camera, for exporting second camera image according to the second image quality parameter；
Described image quality synchronization parameter module calculates second according to the first image quality parameter in the way of segmented fitting
The image quality parameter of camera；
The segmented fitting includes conic fitting mode and Cubic Curve Fitting mode.
5. a kind of synchronous equipment of dual camera picture quality according to claim 4, it is characterised in that: described first takes the photograph
Picture head is main camera, and second camera is secondary camera.
6. a kind of synchronous equipment of dual camera picture quality according to claim 4, it is characterised in that: described first takes the photograph
Picture head is secondary camera, and second camera is main camera.
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| CN107071296B (en) * | 2017-05-15 | 2020-09-04 | 信利光电股份有限公司 | Brightness debugging method for panoramic double cameras |
| CN107872625B (en) * | 2017-12-25 | 2020-05-22 | 信利光电股份有限公司 | Dual-camera exposure synchronous control method and system |
| WO2020248094A1 (en) * | 2019-06-10 | 2020-12-17 | 深圳市大疆创新科技有限公司 | Image acquisition method, image acquisition apparatus, and unmanned aerial vehicle |
| CN115550556B (en) * | 2021-06-25 | 2023-10-24 | 荣耀终端有限公司 | Exposure intensity adjusting method and related device |
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| CN104954661B (en) * | 2014-03-31 | 2018-10-12 | 诺基亚技术有限公司 | Method and apparatus for controlling image capture |
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