CN106878625B - The synchronous exposure method of dual camera and system - Google Patents
The synchronous exposure method of dual camera and system Download PDFInfo
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- CN106878625B CN106878625B CN201710258767.8A CN201710258767A CN106878625B CN 106878625 B CN106878625 B CN 106878625B CN 201710258767 A CN201710258767 A CN 201710258767A CN 106878625 B CN106878625 B CN 106878625B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/70—Circuitry for compensating brightness variation in the scene
- H04N23/73—Circuitry for compensating brightness variation in the scene by influencing the exposure time
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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
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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
- H04N23/60—Control of cameras or camera modules
- H04N23/62—Control of parameters via user interfaces
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- Engineering & Computer Science (AREA)
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- Human Computer Interaction (AREA)
- Studio Devices (AREA)
Abstract
A kind of dual camera synchronization exposure method, applied in the electronic equipment including the first camera and second camera, it include: to obtain luminance information from the collected preview image of the first camera, and the saturation degree of the preview image is calculated, according to the quality of preview image described in the saturation computation；In the way of increasing preset step-length, the luminance information in the preview image is updated, calculates the saturation degree of the preview image and the quality of the preview image according to the saturation computation, until judging that the quality of the preview image declines；When the decline of the quality of the preview image, the exposure value of the second camera is calculated according to corresponding luminance information, and in the photographing instruction for detecting user, first camera is controlled according to above-mentioned exposure value and the second camera is exposed and takes pictures.The present invention also provides a kind of synchronous exposure systems of dual camera.The quality of photomontage can be improved in the present invention.
Description
Technical field
The present invention relates to technical field of image processing, and in particular to a kind of synchronous exposure method of dual camera and system.
Background technique
With the development of electronic equipment, the terminal with camera function has been obtained universal in people's lives.Function
The more and more abundant terminal of energy greatly facilitates people's lives.In recent years, image processing techniques develops rapidly, the photograph of terminal
Phase function is also become stronger day by day, in addition the advantage that terminal is easy to carry, more and more users' favor is taken pictures by terminal.
In order to improve the effect of taking pictures of terminal, more and more terminals blacken the solution party of white dual camera using colour
Case.The solution of the color/monochrome dual camera is exactly imaged using two cameras simultaneously, then is synthesized by the later period,
The colouring information of colour imagery shot had not only been remained in this way, but also can guarantee the clarity of black and white camera, to promote image quality.
It in photo synthesis, needs to obtain luminance information in the black-and-white photograph of middle black and white camera shooting, and is taken the photograph from colour
Color information is obtained in the photochrome obtained as head.If the brightness value extracted from black-and-white photograph is excessively high, can to synthesize it
The color in photo afterwards is more light, so that over-exposed effect can be generated.If the brightness value mistake extracted from black-and-white photograph
It is low, the color in the photo after synthesizing can be made deeper, so that the effect not exposed sufficiently can be generated.
Summary of the invention
In view of the foregoing, it is necessary to propose that a kind of dual camera synchronizes exposure method, pass through progressive manner and select
Suitable luminance information is with color information, to improve the quality of photomontage.
A kind of dual camera synchronization exposure method, is applied in electronic equipment, and the electronic equipment includes the first camera
And second camera, for shooting coloured image, the second camera is used to shoot black white image first camera,
The dual camera synchronizes exposure method
Luminance information and color information are obtained from the collected preview image of the first camera, are saved described bright
Information and color information are spent, the saturation degree of the preview image is calculated according to the luminance information and color information, and
According to the quality of preview image described in the saturation computation；
In the way of increasing preset step-length, the luminance information in saved preview image is updated, according to bright after update
Degree information and corresponding color information calculate the saturation degree of the preview image, further according to the saturation computation institute
The quality for stating preview image, until judging that the quality of the preview image has decline；
When the quality of the preview image has decline, saved luminance information is obtained, according to the brightness of the acquisition
Information calculates the exposure value of the second camera, and in the photographing instruction for detecting user, controls according to above-mentioned exposure value
First camera and the second camera are exposed and take pictures.
In the preferred embodiment of the present invention, first camera is RGB sensor and the second camera is monochromatic
Sensor.
In the preferred embodiment of the present invention, the quality of the preview image according to the saturation computation includes:
The quality of the preview image is calculated using an image quality evaluation function.
In the preferred embodiment of the present invention, this method further include:
When detecting preset instructions, start the image collecting function of the first camera and second camera；And
Obtain first camera and the collected preview image of second camera.
In the preferred embodiment of the present invention, this method further include:
The image shot to first camera and the second camera carries out synthesis processing, and exports composite diagram
Picture.
In view of the foregoing, it there is a need to propose that a kind of dual camera synchronizes exposure system, pass through progressive manner and select
Suitable luminance information is selected with color information, to improve the quality of photomontage.
A kind of dual camera synchronization exposure system, is applied in electronic equipment, and the electronic equipment includes the first camera
And second camera, for shooting coloured image, the second camera is used to shoot black white image first camera,
The dual camera synchronizes exposure system
Primary data obtain module, for from the collected preview image of the first camera obtain luminance information with
And color information, the luminance information and color information are saved, institute is calculated according to the luminance information and color information
State the saturation degree of preview image, and the quality of the preview image according to the saturation computation；
Module is adjusted, for updating the luminance information in saved preview image in the way of increasing preset step-length,
The saturation degree that the preview image is calculated according to luminance information after update and corresponding color information, further according to
The quality of preview image described in saturation computation, until judging that the quality of the preview image has decline；
Shooting module is exposed, for obtaining saved luminance information, root when the quality of the preview image has decline
According to the luminance information of the acquisition, the exposure value of the second camera is calculated, and in the photographing instruction for detecting user, is pressed
First camera is controlled according to above-mentioned exposure value and the second camera is exposed and takes pictures.
In the preferred embodiment of the present invention, first camera is RGB sensor and the second camera is monochromatic
Sensor.
In the preferred embodiment of the present invention, the quality of the preview image according to the saturation computation includes:
The quality of the preview image is calculated using an image quality evaluation function.
In the preferred embodiment of the present invention, the system further include:
Starting module, for starting the Image Acquisition of the first camera and second camera when detecting preset instructions
Function, and obtain first camera and the collected preview image of second camera.
In the preferred embodiment of the present invention, the system further include:
Output module carries out at synthesis for the image to first camera and second camera shooting
Reason, and export composograph.
Compared to the prior art, the synchronous exposure method of dual camera of the present invention and system, it is default using one
Step-length the brightness value in image is gradually increased, calculated until described image quality reaches most preferably, and according to brightness value at this time
Exposure value, to improve the photographic quality synthesized after shooting.
Detailed description of the invention
Technical solution in order to illustrate the embodiments of the present invention more clearly, below will be to institute in embodiment and description of the prior art
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the method flow diagram of synchronous the first preferred embodiment of exposure method of dual camera of the present invention.
Fig. 2 is the method flow diagram of synchronous the second preferred embodiment of exposure method of dual camera of the present invention.
Fig. 3 is the functional block diagram of synchronous the first preferred embodiment of exposure system of dual camera of the present invention.
Fig. 4 is the functional block diagram of synchronous the second preferred embodiment of exposure system of dual camera of the present invention.
Fig. 5 is the structural schematic diagram of electronic equipment provided in an embodiment of the present invention.
Main element symbol description
Electronic equipment 1
Memory 11
Processor 12
First camera 13
Second camera 14
Display unit 15
Communication bus 16
Dual camera synchronizes exposure system 10
Starting module 100
Data acquisition module 101
Adjust module 102
Expose shooting module 103
Output module 104
Specific embodiment
The embodiment of the present invention provides a kind of dual camera synchronization exposure method, passes through the suitable brightness of progressive manner selection
Information is with color information, thereby executing suitable exposure-processed, to improve the quality of photomontage.The embodiment of the present invention also provides
Corresponding dual camera synchronizes exposure system, electronic equipment and computer readable storage medium.
In order to enable those skilled in the art to better understand the solution of the present invention, below in conjunction in the embodiment of the present invention
Attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only
The embodiment of a part of the invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
The model that the present invention protects all should belong in member's every other embodiment obtained without making creative work
It encloses.
Below by specific embodiment, it is described in detail respectively.
Embodiment one,
Fig. 1 is the method flow diagram of synchronous the first preferred embodiment of exposure method of dual camera of the present invention.
The execution sequence in flow chart shown in the figure can change according to different requirements, certain to can be omitted.
The synchronous exposure method of dual camera of the present invention can be applied in an electronic equipment.The electronic equipment can
It to be, but is not limited to, for example, personal computer, smart phone, tablet computer and intelligent wearable device etc. include camera shooting
The equipment of device.
In other preferred embodiments of the invention, the electronic equipment, which can also directly be one, has data processing and data
The photographic device of storage capacity.
As shown in fig.1, in the first preferred embodiment of the invention, the synchronous exposure method of the dual camera includes:
S10, the electronic equipment when detecting preset instructions, adopt by the image for starting the first camera and second camera
Collect function.
In present pre-ferred embodiments, the preset instructions can be set according to demand.For example, the preset instructions can be with
It is a default virtual key of the electronic equipment or the generated instruction of when physical button is clicked.The preset instructions
First camera and second camera are opened for triggering the electronic equipment, so that first camera and described
Second camera carries out Image Acquisition in its image pickup scope.
In present pre-ferred embodiments, first camera is RGB sensor, for shooting coloured image, Yi Jisuo
Stating second camera is monochromatic sensor, for shooting black white image.
The monochromatic sensor only obtains the injection light of any set point, does not consider the color of light, and therefore, monochrome passes
Sensor can grab richer details, such as contour of object details and luminance information from scene.
S11, the electronic equipment obtain collected first preview image of first camera and second camera
Collected second preview image.
As described above, first camera is RGB sensor and the second camera is monochromatic sensor, because
This, the first preview figure is color image and second preview image is black white image.
S12, the electronic equipment obtain luminance information and color information from first preview image, described in preservation
Luminance information and color information, and the full of first preview image is calculated according to the luminance information and color information
And degree, and the quality of the first preview image according to the saturation computation.
In present pre-ferred embodiments, the color information can be indicated with RGB.
In present pre-ferred embodiments, the electronic equipment utilizes an image quality evaluation function according to the saturation degree
Calculate the quality of first preview image.Wherein, described image quality evaluation function can be any known in the prior art
Image quality evaluating method or algorithm.
S13, the electronic equipment update in the first preview image of the preservation in the way of increasing preset step-length
Luminance information calculates the saturation degree of first preview image according to luminance information after update and corresponding color information,
And further calculate the quality of first preview image.
The preset step-length can be a brightness value unit, two brightness value units or any preset default
The brightness value unit of quantity.
S14, the electronic equipment judge whether the quality of first preview image has decline.
If according to described image quality evaluation function obtain as a result, the quality of display first preview image not under
Drop then executes S15, continues in the way of increasing preset step-length, updates the luminance information in first preview image.
If according to described image quality evaluation function obtain as a result, the quality of display first preview image has under
Drop, then execute following S16.
S16, the electronic equipment obtain the luminance information of the preservation.
S17, the electronic equipment calculate the exposure value of the second camera according to the luminance information of the acquisition, with
Make the second camera when taking pictures using exposure value exposure, obtained image meets the luminance information of the acquisition.
S18, when the electronic equipment detects the photographing instruction of user, according to above-mentioned exposure value control first camera shooting
Head and second camera are exposed and take pictures.
S19, the image that the electronic equipment shoots first camera and the second camera synthesize
Processing, and export composograph.The composograph can be shown in the display unit of the electronic equipment.
In second preferred embodiment of the invention, as shown in fig.2, the execution of the synchronous exposure method of the dual camera can also
Not include S10, S11 and S19 in Fig. 1.
Above-mentioned Fig. 1 to Fig. 2 describes the synchronous exposure method of dual camera of the invention in detail, below with reference to the 3rd~5 figure,
The synchronous exposure system of dual camera and electronic equipment of realizing the synchronous exposure method of above-mentioned dual camera are introduced respectively.
It should be appreciated that the embodiment is only purposes of discussion, do not limited by this structure in patent claim.
Embodiment two,
It as shown in Figures 3 and 4, is that the functional module of the synchronous exposure system preferred embodiment of dual camera of the present invention is shown
It is intended to.
The synchronous exposure system 10 of dual camera of the present invention may include multiple as composed by computer program code
Program segment may be mounted in electronic equipment, and as performed by the electronic equipment, to realize the synchronous exposure of dual camera.
In the first preferred embodiment of the present embodiment, as shown in fig.3, the synchronous exposure system 10 of the dual camera is according to it
Performed function can be divided into multiple functional modules.In the present embodiment, the functional module includes at least: data are obtained
Modulus block 101, adjustment module 102 and exposure shooting module 103.
In the second preferred embodiment of the present embodiment, as shown in fig.4, the function of the synchronous exposure system 10 of the dual camera
Module can also include starting module in addition to the data acquisition module 101, adjustment module 102 and exposure shooting module 103
100 and output module 104 etc..
The starting module 100 is used for when detecting preset instructions, starts the figure of the first camera and second camera
As acquisition function, and obtain collected first preview image of first camera and second camera collected second
Preview image.
In present pre-ferred embodiments, the preset instructions can be set according to demand.For example, the preset instructions can be with
The instruction that the default virtual key or physical button for being the electronic equipment generate when being clicked.The preset instructions are used
First camera and second camera are opened in triggering the starting module 100, so that first camera and institute
It states second camera and carries out Image Acquisition in its image pickup scope.
In present pre-ferred embodiments, first camera is RGB sensor, for shooting coloured image, Yi Jisuo
Stating second camera is monochromatic sensor, for shooting black white image.
The monochromatic sensor only obtains the injection light of any set point, does not consider the color of light, and therefore, monochrome passes
Sensor can grab richer details, such as contour of object details and luminance information from scene.
As described above, first camera is RGB sensor and the second camera is monochromatic sensor, because
This, the first preview figure is color image and second preview image is black white image.
The data acquisition module 101 is used to obtain luminance information and color information from first preview image,
The luminance information and color information are saved, first preview graph is calculated according to the luminance information and color information
The saturation degree of picture, and the quality of the first preview image according to the saturation computation.
In present pre-ferred embodiments, the color information can be indicated with RGB.
In present pre-ferred embodiments, the data acquisition module 101 utilizes a picture quality according to the saturation degree
Evaluation function calculates the quality of first preview image.Wherein, described image quality evaluation function can be in the prior art
Any of image quality evaluating method or algorithm.
The adjustment module 102 is used in the way of increasing preset step-length, is updated in the first saved preview image
Luminance information, the saturation of first preview image is calculated according to luminance information after update and corresponding color information
It spends, further the quality of the first preview image according to the saturation computation, until judging first preview image
Quality has decline.
When it is being obtained according to described image quality evaluation function as a result, display first preview image quality not under
When drop, the adjustment module 102 continues in the way of increasing preset step-length, updates the brightness letter in first preview image
Breath.
The preset step-length can be a brill, two brills or any preset preset quantity
Brill.
The exposure shooting module 103 according to described image quality evaluation function for ought obtaining as a result, described in display
When the quality of first preview image has decline, saved luminance information is obtained, according to the luminance information of the acquisition, calculates institute
The exposure value of second camera is stated, and in the photographing instruction for detecting user, is taken the photograph according to above-mentioned exposure value control described first
As head and the second camera are exposed and take pictures.
The exposure value of the second camera calculated can make the second camera utilize the exposure
When light value exposure is taken pictures, obtained image meets the luminance information of the acquisition.
The output module 104 is used to close the image that first camera and the second camera are shot
At processing, and export composograph.The composograph can be shown in the display unit of the electronic equipment.
The above-mentioned integrated unit realized in the form of software function module, can store in a computer-readable storage
In medium.Above-mentioned software function module is stored in a storage medium, including some instructions are used so that an electronic equipment
(can be personal computer, smart phone, tablet computer and intelligent wearable device etc.) or processor (processor) are held
The part steps of each embodiment the method for the row present invention.
Embodiment three,
As shown in figure 5, being the structural schematic diagram for realizing the electronic equipment of the synchronous exposure method of dual camera of the present invention.
Electronic equipment 1 of the present invention may be, but not limited to, for example, personal computer, smart phone, tablet computer,
And intelligent wearable device, including wrist-watch, bracelet, glasses etc..
As shown in figure 5, the electronic equipment 1 in the embodiment of the present invention includes at least one processor 11, at least one processing
Device 12, the first camera 13, second camera 14, display unit 15 and communication bus 16.
Wherein, the communication bus 16 is taken the photograph for realizing the memory 11, processor 12, the first camera 13, second
As the connection communication between first 14, display unit 15.
First camera 13 of the present invention is RGB sensor, for shooting coloured image and the second camera
14 are monochromatic sensor, for shooting black white image.
The display unit 15 is used to export the image that first camera 13 and second camera 14 generate.
The operating system of the electronic equipment 1 and types of applications program, the program of installation can be performed in the processor 12
Code etc., such as the synchronous exposure system 10 of the dual camera.The processor 12 may include one or more micro process
Device, digital processing unit.
The memory 11 is used to store the program code of each program segment in the synchronous exposure system 10 of the dual camera.
The memory 11 can be smart media card (smart media card), safe digital card (secure digital
Card), the storage facilities such as flash memory cards (flash card).
In one embodiment of the invention, the memory 11 in the electronic equipment 1 stores multiple instruction with reality
A kind of existing dual camera synchronizes exposure method, and the multiple instruction can be performed to realize in the processor 12:
A kind of dual camera synchronization exposure method, which comprises
Luminance information and color information are obtained from the collected preview image of the first camera, are saved described bright
Information and color information are spent, the saturation degree of the preview image is calculated according to the luminance information and color information, and
According to the quality of preview image described in the saturation computation；
In the way of increasing preset step-length, the luminance information in saved preview image is updated, according to bright after update
Degree information and corresponding color information calculate the saturation degree of the preview image, further according to the saturation computation institute
The quality for stating preview image, until judging that the quality of the preview image has decline；
When the quality of the preview image has decline, saved luminance information is obtained, according to the brightness of the acquisition
Information calculates the exposure value of the second camera, and in the photographing instruction for detecting user, controls according to above-mentioned exposure value
First camera and the second camera are exposed and take pictures.
In the preferred embodiment of the present invention, first camera is RGB sensor and the second camera is monochromatic
Sensor.
In the preferred embodiment of the present invention, the quality of the preview image according to the saturation computation includes:
The quality of the preview image is calculated using an image quality evaluation function.
In the preferred embodiment of the present invention, this method further include:
When detecting preset instructions, start the image collecting function of the first camera and second camera；And
Obtain first camera and the collected preview image of second camera.
In the preferred embodiment of the present invention, this method further include:
The image shot to first camera and the second camera carries out synthesis processing, and exports composite diagram
Picture.
Example IV,
The embodiment of the present invention also provides a kind of computer readable storage medium for storing one or more programs, one
Or multiple programs include instruction, described instruction makes the electricity when the electronic equipment for being included one or more processors executes
Sub- equipment executes the synchronous exposure method of dual camera of a kind of electronic equipment as described in embodiment of the method above.
In the above-described embodiments, it all emphasizes particularly on different fields to the description of each embodiment, is not described in some embodiment
Part, may refer to the associated description of other embodiments.
It should be noted that for the various method embodiments described above, for simple description, therefore, it is stated as a series of
Combination of actions, but those skilled in the art should understand that, the present invention is not limited by described sequence of movement because according to
According to the present invention, certain steps can use other sequences or carry out simultaneously.Secondly, those skilled in the art should also know that,
The embodiments described in the specification are all preferred embodiments, and not necessarily the present invention must for related actions and modules
Must.
Those of ordinary skill in the art will appreciate that all or part of the steps in the various methods of above-described embodiment is can
It is completed with instructing relevant hardware by program, which can be stored in a computer readable storage medium, storage
Medium may include: ROM, RAM, disk or CD etc..
In several embodiments provided by the present invention, it should be understood that disclosed system and method can pass through it
Its mode is realized.For example, system embodiment described above is only schematical, for example, the division of the module, only
Only a kind of logical function partition, there may be another division manner in actual implementation.
The module as illustrated by the separation member may or may not be physically separated, aobvious as module
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
In network unit.Some or all of the modules therein can be selected to realize the mesh of this embodiment scheme according to the actual needs
's.
It, can also be in addition, each functional module in each embodiment of the present invention can integrate in one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.Above-mentioned integrated list
Member both can take the form of hardware realization, can also realize in the form of hardware adds software function module.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included in the present invention.Any attached associated diagram label in claim should not be considered as right involved in limitation to want
It asks.Furthermore, it is to be understood that one word of " comprising " does not exclude other units or steps, odd number is not excluded for plural number.It is stated in system claims
Multiple modules or system can also be implemented through software or hardware by a module or system.The first, the second equal words
It is used to indicate names, and does not indicate any particular order.
It should be noted that after most the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although ginseng
It is described the invention in detail according to preferred embodiment, those skilled in the art should understand that, it can be to the present invention
Technical solution modify or equivalent replacement, without departing from the spirit and scope of the technical solution of the present invention.
Claims (10)
1. a kind of synchronous exposure method of dual camera, is applied in electronic equipment, the electronic equipment include the first camera with
And second camera, for shooting coloured image, the second camera is used to shoot black white image first camera,
It is characterized in that, the synchronous exposure method of the dual camera includes:
Luminance information and color information are obtained from the collected preview image of the first camera, save the brightness letter
Breath and color information, calculate the saturation degree of the preview image according to the luminance information and color information, and according to
The quality of preview image described in the saturation computation；
In the way of increasing preset step-length, the luminance information in saved preview image is updated, is believed according to brightness after update
Breath and corresponding color information calculate the saturation degree of the preview image, further pre- according to the saturation computation
The quality of image is look at, until judging that the quality of the preview image has decline；And
When the quality of the preview image has decline, saved luminance information is obtained, according to the luminance information of the acquisition,
The exposure value of the second camera is calculated, and in the photographing instruction for detecting user, according to described in the control of above-mentioned exposure value
First camera and the second camera are exposed and take pictures.
2. the synchronous exposure method of dual camera as described in claim 1, which is characterized in that first camera is RGB biography
Sensor and the second camera are monochromatic sensor.
3. the synchronous exposure method of dual camera as described in claim 1, which is characterized in that described according to the saturation computation
The quality of the preview image includes:
The quality of the preview image is calculated using an image quality evaluation function.
4. the synchronous exposure method of dual camera as described in claim 1, which is characterized in that this method further include:
When detecting preset instructions, start the image collecting function of the first camera and second camera；And
Obtain first camera and the collected preview image of second camera.
5. the synchronous exposure method of dual camera as described in claim 1, which is characterized in that this method further include:
The image shot to first camera and the second camera carries out synthesis processing, and exports composograph.
6. a kind of synchronous exposure system of dual camera, is applied in electronic equipment, the electronic equipment include the first camera with
And second camera, for shooting coloured image, the second camera is used to shoot black white image first camera,
It is characterized in that, the synchronous exposure system of the dual camera includes:
Primary data obtains module, for obtaining luminance information and color from the collected preview image of the first camera
Multimedia message saves the luminance information and color information, is calculated according to the luminance information and color information described pre-
Look at the saturation degree of image, and the quality of the preview image according to the saturation computation；
Module is adjusted, for updating the luminance information in saved preview image in the way of increasing preset step-length, according to
Luminance information and corresponding color information calculate the saturation degree of the preview image after update, further according to the saturation
Degree calculates the quality of the preview image, until judging that the quality of the preview image has decline；
Shooting module is exposed, for saved luminance information being obtained, according to institute when the quality of the preview image has decline
The luminance information for stating acquisition calculates the exposure value of the second camera, and in the photographing instruction for detecting user, according to upper
It states exposure value control first camera and the second camera is exposed and takes pictures.
7. the synchronous exposure system of dual camera as claimed in claim 6, which is characterized in that first camera is RGB biography
Sensor and the second camera are monochromatic sensor.
8. the synchronous exposure system of dual camera as claimed in claim 7, which is characterized in that described according to the saturation computation
The quality of the preview image includes:
The quality of the preview image is calculated using an image quality evaluation function.
9. the synchronous exposure system of dual camera as claimed in claim 6, which is characterized in that the system further include:
Starting module, for starting the image collecting function of the first camera and second camera when detecting preset instructions,
And obtain first camera and the collected preview image of second camera.
10. the synchronous exposure system of dual camera as claimed in claim 6, which is characterized in that the system further include:
Output module carries out synthesis processing for the image to first camera and second camera shooting, and
Export composograph.
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|---|---|---|---|---|
| CN110177269B (en) * | 2019-05-31 | 2021-04-06 | 北京迈格威科技有限公司 | Method and device for synchronously correcting exposure of double-shooting module |
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