CN107277378A - A kind of image capturing method and mobile terminal - Google Patents
A kind of image capturing method and mobile terminal Download PDFInfo
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- CN107277378A CN107277378A CN201710660736.5A CN201710660736A CN107277378A CN 107277378 A CN107277378 A CN 107277378A CN 201710660736 A CN201710660736 A CN 201710660736A CN 107277378 A CN107277378 A CN 107277378A
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- camera
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- mobile terminal
- shooting
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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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- 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
- H04N23/67—Focus control based on electronic image sensor signals
Abstract
The present invention provides a kind of image capturing method and mobile terminal, is related to communication technical field.This method is applied to mobile terminal, including：After the camera startup for obtaining the mobile terminal, the focusing instruction that the correspondence of touch operation at least twice is produced on image preview interface；Instructed according to the focusing, determine that the target of the camera shoots f-number；F-number is shot according to the target to shoot the destination object in described image preview interface, obtains target image.The solution of the present invention, realizes the aperture of the demand adjustment more preferably state based on touch operation at least twice, the purpose for making the image of each position clearly to be shown in shooting image so that user obtains more satisfied image, meets the demand of user.
Description
Technical field
The present invention relates to communication technical field, more particularly to a kind of image capturing method and mobile terminal.
Background technology
With the development of the communication technology, the function of mobile terminal is continuously increased, and has had been supplied in side's aspect of people's life
Face.Wherein, especially shoot function, also stronger and stronger, and the convenience used due to mobile terminal, more people start
Selection substitutes specialized camera to carry out image taking using mobile terminal.
Specifically, as shown in figure 1, the distance between object to be captured and focus O2 of camera 101 positioned at location point O1
(O1 to camera 101 apart from l1+ cameras 101 to O2 apart from l2) need to be equal to the focal distance L of the camera 101,
Relatively sharp image can be obtained.And in the preceding depth of field (O1 near point O3, apart from d1) and the rear depth of field (O1 to far point O4, distance
D1 scenery), before and after the focus O2 of camera 101, light can start to assemble and spread, and the image of point can become fuzzy,
The blur circle (allowing disperse circular diameter δ) of an expansion is formed, shooting image will be blurred.
So, during being shot in existing mode, because mobile terminal can not judge personage in image
Erect-position, and multiple users are when back and front formation is shot, mobile terminal will automatically using front-seat personage as shooting main body, and
Heel row personage is considered as then background, obtains the image that background is blurred, so that it is clear to cause user can not obtain whole personages
Image, it is impossible to meet the shooting demand of user.
The content of the invention
The embodiment of the present invention provides a kind of image capturing method and mobile terminal, to solve existing mode because that can not judge people
Thing erect-position, heel row personage is blurred, and causes user can not obtain whole personages clearly image, it is impossible to meet asking for shooting demand
Topic.
First aspect is there is provided a kind of image capturing method, and methods described is applied to mobile terminal, including：
After the camera startup for obtaining the mobile terminal, the correspondence of touch operation at least twice is produced on image preview interface
Focusing instruction；
Instructed according to the focusing, determine that the target of the camera shoots f-number；
F-number is shot according to the target to shoot the destination object in described image preview interface, obtains target
Image.
Second aspect there is provided a kind of mobile terminal, including：
Acquisition module, after the camera startup for obtaining the mobile terminal, image preview is touched at least twice on interface
Touch the focusing instruction that operation correspondence is produced；
Determining module, the focusing for being got according to the acquisition module is instructed, and determines the mesh of the camera
Mark shoots f-number；
Taking module, the target for being determined according to the determining module shoots f-number to described image preview circle
Destination object in face is shot, and obtains target image.
The third aspect is there is provided a kind of mobile terminal, including memory, processor and is stored on the memory and can
The computer program run on the processor；Image taking as described above is realized during the computing device described program
Step in method.
Fourth aspect is stored thereon with computer program there is provided a kind of computer-readable recording medium, and the program is located
Reason device realizes the step in image capturing method as described above when performing.
The above-mentioned technical proposal of the present invention has the beneficial effect that：
The image capturing method of the embodiment of the present invention, can be obtained after the startup of its camera, image preview interface is up to first
The focusing instruction that few correspondence of touch operation twice is produced；Then instructed by the focusing, determine that the target of camera shoots f-number；
Afterwards, shoot f-number according to the target to shoot the destination object in image preview interface, obtain target image.So as to
The aperture of the demand adjustment more preferably state based on touch operation at least twice is realized, makes the image of each position can be in shooting image
In the purpose that clearly shows so that user obtains more satisfied image, meets the demand of user.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed for description of the embodiment of the present invention
The accompanying drawing to be used is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention,
For those of ordinary skill in the art, without having to pay creative labor, it can also be obtained according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 is that camera shoots principle schematic；
Fig. 2 is the step flow chart of the image capturing method of the embodiment of the present invention；
Fig. 3 is the specific steps flow chart one of the image capturing method of the embodiment of the present invention；
Fig. 4 is the specific steps flowchart 2 of the image capturing method of the embodiment of the present invention；
Fig. 5 is the structural representation one of the mobile terminal of one embodiment of the invention；
Fig. 6 is the structural representation two of the mobile terminal of one embodiment of the invention；
Fig. 7 is the structural representation three of the mobile terminal of one embodiment of the invention；
Fig. 8 is the structural representation four of the mobile terminal of one embodiment of the invention；
Fig. 9 is the structural representation five of the mobile terminal of one embodiment of the invention；
Figure 10 is the structural representation of the mobile terminal of further embodiment of this invention；
Figure 11 is the structural representation of the mobile terminal of another embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is a part of embodiment of the invention, rather than whole embodiments.Based on this hair
Embodiment in bright, the every other implementation that those of ordinary skill in the art are obtained under the premise of creative work is not made
Example, belongs to the scope of protection of the invention.
As shown in Fig. 2 the image capturing method of the embodiment of the present invention, applied to mobile terminal, including：
Step 201, after the camera startup for obtaining the mobile terminal, touch operation at least twice on image preview interface
The focusing instruction that correspondence is produced.
In this step, the state for starting but being not carried out to shoot, the movement are operated according to user in the camera of mobile terminal
The image that can collect camera on the image preview interface of terminal is shown, to be supplied to user's preview and carry out follow-up
Shoot.Now, user can based on default touch operation mode (as clicked on), progress be at least twice on the image preview interface
Touch operation triggering focusing instruction, the mobile terminal will just be instructed by getting the focusing, it is thus understood that user's request, to enter
Row subsequent treatment.
Wherein, based on the mobile terminal for touching screen, meeting is after mobile terminal camera startup, to touching screen
Image preview interface whether occur touch operation at least twice and be monitored, when monitoring occur touch operation at least twice
When, obtain the focusing instruction that correspondence is produced.However, because the mode of touch operation is diversified, so, it is clearly to produce focusing
Touch operation in the touch operation of instruction, the embodiment of the present invention should meet a preparatory condition, such as limit the touch operation to be somebody's turn to do
Clicking operation on image preview interface, or sliding trace of the touch operation on the image preview interface are " O " etc..
So, touch operation at least twice whether occurs on the image preview interface by monitoring, and judges that this is touched at least twice
Whether operation meets preparatory condition, will further realize understanding more specific to user's request, it is to avoid the operation of different purposes is done
Disturb.
Step 202, instructed according to the focusing, determine that the target of the camera shoots f-number.
In this step, the focusing got according to step 201 is instructed, to determine that camera finally shoots used mesh
Mark shoots f-number, to shoot the image for meeting user's request.
Step 203, f-number is shot according to the target to shoot the destination object in described image preview interface,
Obtain target image.
In this step, after step 202 determines that target shoots f-number, it becomes possible to shoot f-number to this based on the target
Destination object in image preview interface is shot, and obtains final target image, and the target image can clear display target
Object.
So, by step 201- steps 203, the image capturing method of the embodiment of the present invention, mobile terminal first can be
After its camera starts, the focusing instruction that the correspondence of touch operation at least twice on image preview interface is produced is obtained；Then, by this
The target that focusing instructs to determine the camera shoots f-number；Afterwards, will be pre- to image according to target shooting f-number
The destination object look in interface is shot, and obtains target image, and the shooting of the target image is due to having used focusing to instruct
Identified target shoots f-number, it becomes possible to which realization is clearly shown destination object so that user obtains more satisfied
Image, meets user's request, improves user experience.
In embodiments of the present invention, get after focusing instruction, you can shoot aperture according to its target to camera
Value is determined.It is that focal length/camera lens diameter of sharing the same light of cam lens is obtained it should be appreciated that the shooting f-number F of camera
The relative value gone out.Because same zoom lens is under different focal lengths, although maximum thang-kng diameter is identical, but after conversion
Its maximum ring is different, and F is bigger, and aperture is smaller, conversely, F is smaller, aperture is bigger.Therefore, as shown in figure 3, step 202
Including：
Step 2021, the actual range between acquisition destination object to be captured and the focus of the camera, described to treat
Position of the image of the destination object of shooting in described image preview interface position corresponding with the touch operation is identical.
In this step, mobile terminal by the position on each comfortable image preview interface of the touch operation at least twice,
The image that the image at this position is destination object to be captured is determined, such as touch operation is clicks on, then by image preview circle
The image corresponding to position clicked at least twice on face as destination object image, then, so that it may get the target pair
As the camera focus between actual range, based on data come determine target shoot f-number.
Step 2022, relatively more described actual range and the focal distance of the camera, obtain comparative result.
, can be by the reality after the actual range for the focus that destination object and camera are got in step 2021 in this step
Border distance and the focal distance of camera are compared, and obtain a comparative result, so that, carried out according to the comparative result next
Step.
Step 2023, according to the comparative result, the shooting f-number of the correspondence destination object is obtained.
In this step, after step 2022 compares and obtains a comparative result, it becomes possible to obtain target by the comparative result
The shooting f-number of object, when destination object is multiple, it will obtain multiple shooting f-numbers.
Step 2024, determine that the maximum shooting f-number of numerical value shoots f-number for target.
In this step, after step 2023 obtains the shooting f-number of all destination objects, it will be shot with maximum of which
F-number shoots f-number as target, to realize shooting demand of the user to all destination objects.
By above-mentioned steps 2021- steps 2023, mobile terminal can obtain mesh first when it is determined that target shoots f-number
Mark the actual range between object and camera focus；Then by comparing actual range and focal distance, comparative result is obtained；It
Afterwards, then by the comparative result shooting f-number of each destination object of correspondence is obtained；Finally, determined most from f-number is shot
Big value shoots f-number as target.So, the target used during shooting shoots f-number and is possible to more preferably realize to each
The image of individual destination object is obtained, it is ensured that image clearly.
Further specifically, step 2023 includes：
If the actual range is less than the focal distance, according to preceding depth of field formula Δ L1=F δ L2/(f2+ F δ L), meter
Calculation obtains corresponding shooting f-number F；
If the actual range is more than the focal distance, according to rear depth of field formula Δ L2=F δ L2/(f2- F δ L), meter
Calculation obtains corresponding shooting f-number F；Wherein,
Δ L1=L-S, Δ L2=S-L, δ is allow disperse circular diameter, and L is focal distance, and f is focal length, S for it is actual away from
From.
Here, after the comparison that step 2022 completes actual range and focal distance, you can by specific comparative result,
Select accommodation mode carry out to should destination object shooting f-number calculating, so that it is determined that all targets pair can be applicable by going out
The target of elephant shoots f-number.
For example, being got by monitoring user position P1, P2, P3 on image preview interface three clicking operations
Corresponding focusing instruction and corresponding destination object, therefore, just can further get three destination objects with taking the photograph first
Actual range S (being designated as S1, S2, S3 respectively) between the focus of picture head；Afterwards, S1, S2, S3 and L are respectively compared, selected
Select corresponding formula and calculate shooting f-number F needed for the destination object.Work as S1<L, then pass through Δ L1=F δ L2/(f2+ F δ L),
Δ L1=L-S1, substitutes into each known amount：Perhaps disperse circular diameter δ, focal distance L, focal length f, actual range S1, it becomes possible to count
Calculate the shooting f-number of S1 correspondence destination objects.And work as S2>L, then by Δ L2=F δ L2/ (f2-F δ L), Δ L1=S2-L,
Substitute into each known amount：Allow disperse circular diameter δ, focal distance L, focal length f, actual range S2, it becomes possible to calculate S2 pairs
The shooting f-number of destination object is answered, likewise, can also calculate the shooting f-number of S3 correspondence destination objects.Certainly, if
The actual range of the destination object is equal to the focal distance, then without calculating, directly obtains the shooting f-number of the destination object
For presently used shooting f-number.And after the completion of calculating, you can the shooting f-number of maximum is therefrom chosen as target
Shoot f-number, to realize follow-up shooting, obtain user click location can blur-free imaging image.
In addition, the quality to lift shooting image, it is preferable that before step 2022, step 202 also includes：
After multiple actual ranges are got, the focal distance of the camera is adjusted；Wherein, the focal distance after adjustment
More than the minimum actual range in the multiple actual range, and less than the maximum actual range in the multiple actual range.
Here, after the actual range corresponding to multiple destination objects is got, can the actual range maximum and
Between minimum value, a numerical value is determined as the focal distance after adjustment, to ensure the imaging definition after destination object.Its
In, to avoid focal distance too small or too big, and the poor imaging effect caused, more specifically, calculate the plurality of reality away from
From average value or the preferred value such as median, as focal distance.
However, it should also be appreciated that, in the embodiment of the present invention, as shown in figure 4, step 203 includes：
Step 2031, f-number is shot according to the target and aperture adjustment is carried out to the camera, and it is pre- based on first
If the shutter speed of the mode correspondence adjustment camera.
In this step, it is contemplated that in shooting process, shutter speed is important investigation numerical value when shooting, therefore, with mesh
Mark is shot after the determination of f-number, the lens aperture for adjusting the camera, is also adapted to adjust shutter speed, here will be based on shifting
The first predetermined manner stored in dynamic terminal adjusts the corresponding shutter speed that shutter speed shoots f-number to the target.
Step 2032, if the shutter speed after adjustment is less than or equal to default shutter speed, instruction is shot getting
Destination object is shot afterwards, target image is obtained.
In this step, after step 2031 adjustment shutter speed, by comparing the shutter speed after adjustment and default shutter
Speed, when shutter speed after the adjustment is less than or equal to default shutter speed, it is thus understood that the shutter speed after adjustment is smaller, no
Easily occur hand shaking, then destination object can be shot after shooting instruction is got, obtain target image.
Step 2033, if the shutter speed after adjustment is more than default shutter speed, warned based on default alerting pattern
Accuse and remind, or the sensitivity based on the second predetermined manner correspondence adjustment camera, to mesh after shooting instruction is got
Mark object is shot, and obtains target image.
In this step, by comparing the shutter speed after adjustment and default shutter speed, shutter speed after the adjustment is big
When preset security shutter speed, it is thus understood that the shutter speed after adjustment is larger, easily occur hand shaking, then can be based on default prompting side
Formula carries out warning prompting, and the larger prompting of shutter speed is sent to user, is manually adjusted by user；Or it is pre- based on second
If mode correspondence adjusts the sensitivity of the camera, so as to realize elimination shutter speed large effect, refer to getting shooting
Destination object is shot after order, target image is obtained.
By above-mentioned steps 2031- steps 2033, mobile terminal can shoot the determination of f-number with target, adjust this and take the photograph
After the lens aperture of picture head, it is also adapted to adjust shutter speed.But, in mobile terminal, hand shaking is caused during to avoid shooting
Fuzzy pictures, often with a default shutter speed, usually 1/30s or 1/60s, and the shutter speed after adjusting may
More than the default shutter speed, the situation of fuzzy pictures just occurs.So, after adjustment shutter speed, if fast after adjustment
Door speed is less than or equal to default shutter speed, then destination object can be shot after shooting instruction is got, obtain mesh
Logo image., can be based on default prompting side if the shutter speed after adjustment is more than default shutter speed after adjustment shutter speed
Formula carries out warning prompting, and the larger prompting of shutter speed is sent to user, or adjusts this based on the second predetermined manner correspondence and is taken the photograph
As the sensitivity of head, shutter speed large effect is eliminated, and then destination object is shot after shooting instruction is got,
Obtain target image.In such manner, it is possible to it is determined that target shoot f-number after, be prevented effectively from shutter speed regulation caused by clap
The quality influence of image is taken the photograph, apparent image is further obtained.Wherein, it is preferred that the first predetermined manner is to have recorded difference
F-number and its correspondence shutter speed are shot, the second predetermined manner is to have recorded different shutter speeds and its correspondence sensitivity,
Directly corresponding data is found by current data to be adjusted.
Furthermore, it is contemplated that at image preview interface, user misoperation influences whether focusing instruction, and causes the mistake of shooting
Lose, the method for the embodiment of the present invention, in step 201, in addition to：
On the image preview interface after the camera of the mobile terminal starts, according to preset mark mode, described
Touch operation at least twice described in prompting on image preview interface；
If getting mark cancel an order, the prompting in described image preview interface is eliminated；
Obtain and do not eliminate the focusing instruction that the touch operation correspondence of prompting is produced.
So, after user carries out touch operation at least twice on image preview interface, you can according to preset mark side
Formula, points out the touch operation at least twice on the image preview interface, so that user understands the position of its operation, and then judges
Whether there is operational error, if there is error, then carry out destruction operation triggered mark cancel an order, eliminate the image preview interface
On prompting, the operation error before cancellation, finally, obtain do not eliminate prompting touch operation correspondence produce focusing instruction.
Preset mark mode can be the station location marker of predetermined color, predetermined pattern, and what is such as monitored on the image preview interface touches
Operating position (such as user's click location) increase red spots mark is touched, and monitors destruction operation (such as in the red spots mark
Click in knowledge) after, cancel red spots mark, to also no longer carrying out subsequent treatment at the position.
In this embodiment, mobile terminal may be provided with dual camera, so, it is only right also to be passed through based on the above method
A wherein camera carries out image and obtains setting, and another camera is continued to use former mode and shot, and generates two different images, with
Compare for user.
In summary, the image capturing method of the embodiment of the present invention, mobile terminal can be obtained after the startup of its camera first,
The focusing instruction that the correspondence of touch operation at least twice is produced on image preview interface；Then instructed by the focusing, determine camera
Target shoot f-number；Afterwards, f-number is shot according to the target to shoot the destination object in image preview interface,
Obtain target image.So as to realize the aperture of the demand adjustment more preferably state based on touch operation at least twice, make each position
The purpose that image can clearly be shown in shooting image so that user obtains more satisfied image, meets the demand of user.
Fig. 5 is the block diagram of the mobile terminal of one embodiment of the invention.Mobile terminal 500 shown in Fig. 5 includes obtaining mould
Block 501, determining module 502 and taking module 503.
Acquisition module 501, after the camera startup for obtaining the mobile terminal, on image preview interface at least twice
The focusing instruction that touch operation correspondence is produced；
Determining module 502, the focusing for being got according to the acquisition module 501 is instructed, and determines the shooting
The target of head shoots f-number；
Taking module 503, the target for being determined according to the determining module 502 shoots f-number to described image
Destination object in preview interface is shot, and obtains target image.
On the basis of Fig. 5, alternatively, as shown in fig. 6, the determining module 502 includes：
First acquisition submodule 5021, the reality for obtaining between the focus of destination object to be captured and the camera
Border distance, the position of the image of the destination object to be captured in described image preview interface is corresponding with the touch operation
Position it is identical；
Comparison sub-module 5022, the focal distance for comparing the actual range and the camera obtains comparing knot
Really；
Submodule 5023 is obtained, for according to the comparative result, obtaining the shooting f-number of the correspondence destination object；
Determination sub-module 5024, for determining that the maximum shooting f-number of numerical value is target shooting f-number.
Alternatively, the acquisition submodule 5023 includes：
First processing units 50231, if being less than the focal distance for the actual range, according to preceding depth of field formula
Δ L1=F δ L2/(f2+ F δ L), calculating obtains corresponding shooting f-number F；
Second processing unit 50232, if being more than the focal distance for the actual range, according to rear depth of field formula
Δ L2=F δ L2/(f2- F δ L), calculating obtains corresponding shooting f-number F；Wherein,
Δ L1=L-S, Δ L2=S-L, δ is allow disperse circular diameter, and L is focal distance, and f is focal length, S for it is actual away from
From.
On the basis of Fig. 6, alternatively, as shown in fig. 7, the determining module 502 also includes：
First adjustment submodule 5025, for after multiple actual ranges are got, adjusting the focusing of the camera
From；Wherein, the focal distance after adjustment is more than the minimum actual range in the multiple actual range, and less than the multiple reality
Maximum actual range in the distance of border.
On the basis of Fig. 5, alternatively, as shown in figure 8, the taking module 503 includes：
Second adjustment submodule 5031, aperture tune is carried out for shooting f-number according to the target to the camera
It is whole, and based on the shutter speed of the first predetermined manner correspondence adjustment camera；
First shooting submodule 5032, if the shutter speed after for adjusting is less than or equal to default shutter speed,
Destination object is shot after getting shooting instruction, target image is obtained；
Second shooting submodule 5033, if the shutter speed after for adjusting is more than default shutter speed, based on default
Alerting pattern carries out warning prompting, or the sensitivity based on the second predetermined manner correspondence adjustment camera, is getting
Destination object is shot after shooting instruction, target image is obtained.
On the basis of Fig. 5, alternatively, as shown in figure 9, the acquisition module 501 includes：
Prompting submodule 5011, for the camera of the mobile terminal startup after image preview interface, according to
Preset mark mode, touch operation at least twice described in prompting；
Prompting revocation submodule 5012, if for getting mark cancel an order, eliminating in described image preview interface
Prompting；
Second acquisition submodule 5013, does not eliminate the focusing instruction that the touch operation correspondence of prompting is produced for obtaining.
Mobile terminal 500 can realize each process that mobile terminal is realized in Fig. 2 to Fig. 4 embodiment of the method, to keep away
Exempt to repeat, repeat no more here.Mobile terminal can be obtained after the startup of its camera first, and image preview is touched at least twice on interface
Touch the focusing instruction that operation correspondence is produced；Then instructed by the focusing, determine that the target of camera shoots f-number；Afterwards, root
F-number is shot according to the target to shoot the destination object in image preview interface, obtains target image.So as to realize base
In the aperture of the demand adjustment more preferably state of touch operation at least twice, make the image of each position can be clear in shooting image
The purpose of displaying so that user obtains more satisfied image, meets the demand of user.
Another embodiment of the present invention additionally provides a kind of computer-readable recording medium, is stored thereon with computer journey
Sequence, the program realizes following steps when being executed by processor：After the camera startup for obtaining the mobile terminal, image preview circle
The focusing instruction that the correspondence of touch operation at least twice is produced on face；Instructed according to the focusing, determine the target of the camera
Shoot f-number；F-number is shot according to the target to shoot the destination object in described image preview interface, is obtained
Target image.
Alternatively, following steps can also be realized when the program is executed by processor：Obtain destination object to be captured with
Actual range between the focus of the camera, the image of the destination object to be captured is in described image preview interface
Position position corresponding with the touch operation it is identical；Compare the focal distance of the actual range and the camera, obtain
To comparative result；According to the comparative result, the shooting f-number of the correspondence destination object is obtained；Determine the maximum bat of numerical value
Take the photograph f-number and shoot f-number for target.
Alternatively, following steps can also be realized when the program is executed by processor：If the actual range is less than described
Focal distance, then according to preceding depth of field formula Δ L1=F δ L2/(f2+ F δ L), calculating obtains corresponding shooting f-number F；If described
Actual range is more than the focal distance, then according to rear depth of field formula Δ L2=F δ L2/(f2- F δ L), calculating obtains corresponding bat
Take the photograph f-number F；Wherein, Δ L1=L-S, Δ L2=S-L, δ is allow disperse circular diameter, and L is focal distance, and f is focal length, and S is
Actual range.
Alternatively, following steps can also be realized when the program is executed by processor：After multiple actual ranges are got,
Adjust the focal distance of the camera；Wherein, the minimum that the focal distance after adjustment is more than in the multiple actual range is real
Border distance, and less than the maximum actual range in the multiple actual range.
Alternatively, following steps can also be realized when the program is executed by processor：F-number is shot according to the target
Aperture adjustment is carried out to the camera, and based on the shutter speed of the first predetermined manner correspondence adjustment camera；If adjusting
Shutter speed after whole is less than or equal to default shutter speed, then destination object is shot after shooting instruction is got,
Obtain target image；If the shutter speed after adjustment is more than default shutter speed, warning is carried out based on default alerting pattern and carried
Wake up, or the sensitivity based on the second predetermined manner correspondence adjustment camera, to target pair after shooting instruction is got
As being shot, target image is obtained.
Alternatively, following steps can also be realized when the program is executed by processor：In the camera of the mobile terminal
On image preview interface after startup, according to preset mark mode, touch operation at least twice described in prompting；If getting mark
Cancel an order, then eliminate the prompting in described image preview interface；Obtain and do not eliminate pair that the touch operation correspondence of prompting is produced
Jiao's instruction.
Computer-readable medium includes permanent and non-permanent, removable and non-removable media can be by any method
Or technology come realize information store.Information can be computer-readable instruction, data structure, the module of program or other data.
The example of the storage medium of computer includes, but are not limited to phase transition internal memory (PRAM), static RAM (SRAM), moved
State random access memory (DRAM), other kinds of random access memory (RAM), read-only storage (ROM), electric erasable
Programmable read only memory (EEPROM), fast flash memory bank or other memory techniques, read-only optical disc read-only storage (CD-ROM),
Digital versatile disc (DVD) or other optical storages, magnetic cassette tape, the storage of tape magnetic rigid disk or other magnetic storage apparatus
Or any other non-transmission medium, the information that can be accessed by a computing device available for storage.Define, calculate according to herein
Machine computer-readable recording medium does not include temporary computer readable media (transitory media), such as data-signal and carrier wave of modulation.
The mobile terminal of another embodiment of the present invention, including memory, processor and be stored on the memory simultaneously
The computer program that can be run on the processor；Realize that image as described above is clapped during the computing device described program
The step taken the photograph in method.Specifically, the mobile terminal 1 000 shown in Figure 10 includes：At least one processor 1001, memory
1002nd, at least one network interface 1004 and user interface 1003.Each component in mobile terminal 1 000 passes through bus system
1005 are coupled.It is understood that bus system 1005 is used to realize the connection communication between these components.Bus system 1005
In addition to including data/address bus, in addition to power bus, controlling bus and status signal bus in addition.But illustrate in order to clear
See, various buses are all designated as bus system 1005 in Fig. 10.
Wherein, user interface 1003 can include display, keyboard or pointing device (for example, mouse, trace ball
(trackball), touch-sensitive plate or touch-screen etc..
It is appreciated that the memory 1002 in the embodiment of the present invention can be volatile memory or non-volatile memories
Device, or may include both volatibility and nonvolatile memory.Wherein, nonvolatile memory can be read-only storage
(Read-Only Memory, ROM), programmable read only memory (Programmable ROM, PROM), erasable programmable are only
Read memory (Erasable PROM, EPROM), Electrically Erasable Read Only Memory (Electrically EPROM,
) or flash memory EEPROM.Volatile memory can be random access memory (Random Access Memory, RAM), and it is used
Make External Cache.By exemplary but be not restricted explanation, the RAM of many forms can use, such as static random-access
Memory (Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), synchronous dynamic random-access
Memory (Synchronous DRAM, SDRAM), double data speed synchronous dynamic RAM (Double Data
Rate SDRAM, DDRSDRAM), it is enhanced Synchronous Dynamic Random Access Memory (Enhanced SDRAM, ESDRAM), synchronous
Connect dynamic random access memory (Synch link DRAM, SLDRAM) and direct rambus random access memory
(Direct Rambus RAM, DRRAM).The memory 1002 of system and method described herein be intended to including but not limited to this
The memory of a little and any other suitable type.
In some embodiments, memory 1002 stores following element, can perform module or data structure, or
Their subset of person, or their superset：Operating system 10021 and application program 10022.
Wherein, operating system 10021, comprising various system programs, such as ccf layer, core library layer, driving layer, are used for
Realize various basic businesses and handle hardware based task.Application program 10022, includes various application programs, such as matchmaker
Body player (Media Player), browser (Browser) etc., for realizing various applied business.Realize that the present invention is implemented
The program of example method may be embodied in application program 10022.
In embodiments of the present invention, by calling program or the instruction of the storage of memory 1002, specifically, can be application
The program stored in program 10022 or instruction, processor 1001 are used for：After the camera startup for obtaining the mobile terminal, figure
As the focusing instruction that the correspondence of touch operation at least twice is produced in preview interface；Instructed according to the focusing, determine the shooting
The target of head shoots f-number；F-number is shot according to the target to clap the destination object in described image preview interface
Take the photograph, obtain target image.
The method that the embodiments of the present invention are disclosed can apply in processor 1001, or real by processor 1001
It is existing.Processor 1001 is probably a kind of IC chip, the disposal ability with signal.In implementation process, the above method
Each step can be completed by the instruction of the integrated logic circuit of the hardware in processor 1001 or software form.Above-mentioned
Processor 1001 can be general processor, digital signal processor (Digital Signal Processor, DSP), special
Integrated circuit (Application Specific Integrated Circuit, ASIC), ready-made programmable gate array (Field
Programmable Gate Array, FPGA) or other PLDs, discrete gate or transistor logic,
Discrete hardware components.It can realize or perform disclosed each method, step and the logic diagram in the embodiment of the present invention.It is general
Processor can be microprocessor or the processor can also be any conventional processor etc..With reference to institute of the embodiment of the present invention
The step of disclosed method, can be embodied directly in hardware decoding processor and perform completion, or with the hardware in decoding processor
And software module combination performs completion.Software module can be located at random access memory, and flash memory, read-only storage may be programmed read-only
In the ripe storage medium in this area such as memory or electrically erasable programmable memory, register.The storage medium is located at
Memory 1002, processor 1001 reads the information in memory 1002, the step of completing the above method with reference to its hardware.
It is understood that embodiments described herein can with hardware, software, firmware, middleware, microcode or its
Combine to realize.Realized for hardware, processing unit can be realized in one or more application specific integrated circuit (Application
Specific Integrated Circuits, ASIC), digital signal processor (Digital Signal Processing,
DSP), digital signal processing appts (DSP Device, DSPD), programmable logic device (Programmable Logic
Device, PLD), field programmable gate array (Field-Programmable Gate Array, FPGA), general processor,
In controller, microcontroller, microprocessor, other electronic units for performing herein described function or its combination.
Realize, can be realized by performing the module (such as process, function) of function described herein herein for software
Described technology.Software code is storable in memory and by computing device.Memory can within a processor or
Realized outside processor.
Alternatively, processor 1001 is additionally operable to：Between acquisition destination object to be captured and the focus of the camera
Actual range, the position of the image of the destination object to be captured in described image preview interface and the touch operation pair
The position answered is identical；Compare the focal distance of the actual range and the camera, obtain comparative result；According to the comparison
As a result, the shooting f-number of the correspondence destination object is obtained；Determine that the maximum shooting f-number of numerical value shoots aperture for target
Value.
Alternatively, processor 1001 is additionally operable to：It is public according to the preceding depth of field if the actual range is less than the focal distance
Formula Δ L1=F δ L2/(f2+ F δ L), calculating obtains corresponding shooting f-number F；If the actual range is more than the focusing
From then according to rear depth of field formula Δ L2=F δ L2/(f2- F δ L), calculating obtains corresponding shooting f-number F；Wherein, Δ L1=L-
S, Δ L2=S-L, δ is allow disperse circular diameter, and L is focal distance, and f is focal length, and S is actual range.
Alternatively, processor 1001 is additionally operable to：After multiple actual ranges are got, the focusing of the camera is adjusted
From；Wherein, the focal distance after adjustment is more than the minimum actual range in the multiple actual range, and less than the multiple reality
Maximum actual range in the distance of border.
Alternatively, processor 1001 is additionally operable to：F-number is shot according to the target aperture tune is carried out to the camera
It is whole, and based on the shutter speed of the first predetermined manner correspondence adjustment camera；If the shutter speed after adjustment is less than or waited
In default shutter speed, then destination object is shot after shooting instruction is got, obtain target image；If after adjustment
Shutter speed is more than default shutter speed, then carries out warning prompting based on default alerting pattern, or based on the second predetermined manner
The sensitivity of the correspondence adjustment camera, shoots to destination object after shooting instruction is got, obtains target image.
Alternatively, processor 1001 is additionally operable to：On the image preview interface after the camera of the mobile terminal starts,
According to preset mark mode, touch operation at least twice described in prompting；If getting mark cancel an order, described image is eliminated
Prompting in preview interface；Obtain and do not eliminate the focusing instruction that the touch operation correspondence of prompting is produced.
Mobile terminal 1 000 can realize each process that mobile terminal is realized in previous embodiment, to avoid repeating, this
In repeat no more.Mobile terminal can be obtained after the startup of its camera first, touch operation pair at least twice on image preview interface
The focusing instruction that should be produced；Then instructed by the focusing, determine that the target of camera shoots f-number；Afterwards, according to the target
Shoot f-number to shoot the destination object in image preview interface, obtain target image.So as to realize based at least two
The aperture of the demand adjustment more preferably state of secondary touch operation, the mesh for making the image of each position clearly to be shown in shooting image
So that user obtains more satisfied image, meets the demand of user.
Figure 11 is the structural representation of the mobile terminal of another embodiment of the present invention.Specifically, the mobile end in Figure 11
End 1100 can be mobile phone, tablet personal computer, personal digital assistant (Personal Digital Assistant, PDA) or vehicle-mounted
Computer etc..
Mobile terminal 1 100 in Figure 11 include radio frequency (Radio Frequency, RF) circuit 1110, memory 1120,
Input block 1130, display unit 1140, processor 1160, voicefrequency circuit 1170, WiFi (Wireless Fidelity) module
1180 and power supply 1190.
Wherein, input block 1130 can be used for the numeral or character information of reception user's input, and produce and mobile whole
The signal input that the user at end 1100 is set and function control is relevant.Specifically, in the embodiment of the present invention, the input block
1130 can include contact panel 1131.Contact panel 1131, also referred to as touch-screen, collect user's touching on or near it
Operation (such as user uses the operations of any suitable object or annex on contact panel 1131 such as finger, stylus) is touched, and
Corresponding attachment means are driven according to formula set in advance.Optionally, contact panel 1131 may include touch detecting apparatus and
Two parts of touch controller.Wherein, touch detecting apparatus detects the touch orientation of user, and detects the letter that touch operation is brought
Number, transmit a signal to touch controller；Touch controller receives touch information from touch detecting apparatus, and is converted into
Contact coordinate, then give the processor 1160, and the order sent of reception processing device 1160 and can be performed.Furthermore, it is possible to
Contact panel 1131 is realized using polytypes such as resistance-type, condenser type, infrared ray and surface acoustic waves.Except contact panel
1131, input block 1130 can also include other input equipments 1132, and other input equipments 1132 can include but is not limited to
One kind or many in physical keyboard, function key (such as volume control button, switch key etc.), trace ball, mouse, action bars etc.
Kind.
Wherein, display unit 1140 can be used for information and the movement for showing the information inputted by user or being supplied to user
The various menu interfaces of terminal 1100.Display unit 1140 may include display panel 1141, optionally, using LCD or can have
The forms such as machine light emitting diode (Organic Light-Emitting Diode, OLED) configure display panel 1141.
It should be noted that contact panel 1131 can cover display panel 1141, touch display screen is formed, when the touch display screen
Detect after the touch operation on or near it, processor 1160 is sent to determine the type of touch event, with post processing
Device 1160 provides corresponding visual output according to the type of touch event in touch display screen.
Touch display screen includes Application Program Interface viewing area and conventional control viewing area.The Application Program Interface viewing area
And arrangement mode of the conventional control viewing area is not limited, can be arranged above and below, left-right situs etc. can distinguish two and show
Show the arrangement mode in area.The Application Program Interface viewing area is displayed for the interface of application program.Each interface can be with
The interface element such as the icon comprising at least one application program and/or widget desktop controls.The Application Program Interface viewing area
It can also be the empty interface not comprising any content.The conventional control viewing area is used to show the higher control of utilization rate, for example,
Application icons such as settings button, interface numbering, scroll bar, phone directory icon etc..
Wherein processor 1160 is the control centre of mobile terminal 1 100, utilizes various interfaces and connection whole mobile phone
Various pieces, by operation or perform and be stored in software program and/or module in first memory 1121, and call and deposit
The data in second memory 1122 are stored up, the various functions and processing data of mobile terminal 1 100 are performed, so as to mobile whole
End 1100 carries out integral monitoring.Optionally, processor 1160 may include one or more processing units.
In embodiments of the present invention, by call store the first memory 1121 in software program and/or module and/
Or the data in the second memory 1122, after camera startup of the processor 1160 for obtaining the mobile terminal, image
The focusing instruction that the correspondence of touch operation at least twice is produced in preview interface；Instructed according to the focusing, determine the camera
Target shoot f-number；F-number is shot according to the target to clap the destination object in described image preview interface
Take the photograph, obtain target image.
Alternatively, the reality between the destination object to be captured for obtaining of processor 1160 and the focus of the camera
Distance, the position of the image of the destination object to be captured in described image preview interface is corresponding with the touch operation
Position is identical；Compare the focal distance of the actual range and the camera, obtain comparative result；Compare knot according to described
Really, the shooting f-number of the correspondence destination object is obtained；Determine that the maximum shooting f-number of numerical value shoots f-number for target.
Alternatively, if processor 1160 is used for the actual range and is less than the focal distance, according to preceding depth of field formula
Δ L1=F δ L2/(f2+ F δ L), calculating obtains corresponding shooting f-number F；If the actual range is more than the focal distance,
Then according to rear depth of field formula Δ L2=F δ L2/(f2- F δ L), calculating obtains corresponding shooting f-number F；Wherein, Δ L1=L-S,
Δ L2=S-L, δ is allow disperse circular diameter, and L is focal distance, and f is focal length, and S is actual range.
Alternatively, processor 1160 is used for after multiple actual ranges are got, and adjusts the focal distance of the camera；
Wherein, the focal distance after adjustment is more than the minimum actual range in the multiple actual range, and less than the multiple reality
Maximum actual range in distance.
Alternatively, processor 1160 is used to shoot f-number to camera progress aperture adjustment according to the target,
And based on the shutter speed of the first predetermined manner correspondence adjustment camera；If the shutter speed after adjustment is less than or equal to pre-
If shutter speed, then destination object is shot after shooting instruction is got, obtain target image；If the shutter after adjustment
Speed is more than default shutter speed, then carries out warning prompting based on default alerting pattern, or based on the second predetermined manner correspondence
The sensitivity of the camera is adjusted, destination object is shot after shooting instruction is got, target image is obtained.
Alternatively, the image preview interface that processor 1160 is used for after the camera of the mobile terminal starts, root
According to preset mark mode, touch operation at least twice described in prompting；If getting mark cancel an order, described image is eliminated pre-
The prompting look on interface；Obtain and do not eliminate the focusing instruction that the touch operation correspondence of prompting is produced.
It can be seen that, mobile terminal can be obtained after the startup of its camera first, touch operation at least twice on image preview interface
The focusing instruction that correspondence is produced；Then instructed by the focusing, determine that the target of camera shoots f-number；Afterwards, according to the mesh
Mark shoots f-number and the destination object in image preview interface is shot, and obtains target image.So as to realize based at least
The aperture of the demand adjustment more preferably state of touch operation twice, makes what the image of each position can clearly be shown in shooting image
Purpose so that user obtains more satisfied image, meets the demand of user.
Those of ordinary skill in the art are it is to be appreciated that the list of each example described with reference to the embodiments described herein
Member and algorithm steps, can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are actually
Performed with hardware or software mode, depending on the application-specific and design constraint of technical scheme.Professional and technical personnel
Described function can be realized using distinct methods to each specific application, but this realization is it is not considered that exceed
The scope of the present invention.
It is apparent to those skilled in the art that, for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and unit, may be referred to the corresponding process in preceding method embodiment, will not be repeated here.
In embodiment provided herein, it should be understood that disclosed apparatus and method, others can be passed through
Mode is realized.For example, device embodiment described above is only schematical, for example, the division of the unit, is only
A kind of division of logic function, can there is other dividing mode when actually realizing, such as multiple units or component can combine or
Person is desirably integrated into another system, or some features can be ignored, or does not perform.Another, shown or discussed is mutual
Between coupling or direct-coupling or communication connection can be the INDIRECT COUPLING or communication link of device or unit by some interfaces
Connect, can be electrical, machinery or other forms.
The unit illustrated as separating component can be or may not be it is physically separate, it is aobvious as unit
The part shown can be or may not be physical location, you can with positioned at a place, or can also be distributed to multiple
On NE.Some or all of unit therein can be selected to realize the mesh of this embodiment scheme according to the actual needs
's.
In addition, each functional unit in each embodiment of the invention can be integrated in a processing unit, can also
That unit is individually physically present, can also two or more units it is integrated in a unit.
If the function is realized using in the form of SFU software functional unit and is used as independent production marketing or in use, can be with
It is stored in a computer read/write memory medium.Understood based on such, technical scheme is substantially in other words
The part contributed to prior art or the part of the technical scheme can be embodied in the form of software product, the meter
Calculation machine software product is stored in a storage medium, including some instructions are to cause a computer equipment (can be individual
People's computer, server, or network equipment etc.) perform all or part of step of each of the invention embodiment methods described.
And foregoing storage medium includes：USB flash disk, mobile hard disk, ROM, RAM, magnetic disc or CD etc. are various can be with store program codes
Medium.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all be contained
Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be defined by scope of the claims.
Explanation is needed further exist for, this mobile terminal described in this description includes but is not limited to smart mobile phone, put down
Plate computer etc..
This many functional part described in this description is all referred to as module, specifically to emphasize its realization side
The independence of formula.
In the embodiment of the present invention, module can be realized with software, so as to by various types of computing devices.Citing comes
Say, the executable code module of a mark can include the one or more physics or logical block of computer instruction, illustrate
For, it can be built as object, process or function.Nevertheless, the executable code of institute's mark module is without physically
It is located together, but can includes being stored in different instructions in different positions, is combined together when in these command logics
When, its regulation purpose for constituting module and realizing the module.
In fact, executable code module can be the either many bar instructions of individual instructions, and it can even be distributed
On multiple different code segments, it is distributed among distinct program, and is distributed across multiple memory devices.Similarly, grasp
Making data can be identified in module, and can be realized according to any appropriate form and be organized in any appropriate class
In the data structure of type.The peration data can be collected as individual data collection, or can be distributed on diverse location
(being included in different storage device), and only can be present at least in part as electronic signal in system or network.
When module can be realized using software, it is contemplated that the level of existing hardware technique, it is possible to implemented in software
Module, in the case where not considering cost, those skilled in the art can build corresponding hardware circuit realize correspondence
Function, the hardware circuit includes conventional ultra-large integrated (VLSI) circuit or gate array and such as logic core
The existing semiconductor of piece, transistor etc either other discrete elements.Module can also use programmable hardware device, such as
Field programmable gate array, programmable logic array, programmable logic device etc. are realized.
Above-mentioned exemplary embodiment is described with reference to those accompanying drawings, many different forms and embodiment be it is feasible and
Without departing from spirit of the invention and teaching, therefore, the present invention should not be construed to turn into proposes the limitation of exemplary embodiment at this.
More precisely, these exemplary embodiments are provided so that the present invention can be improved and complete, and can be by the scope of the invention
Convey to those those of skill in the art.In those schemas, size of components and relative size are perhaps based on for the sake of clear
And be exaggerated.Term used herein is based only on description particular example embodiment purpose, is not intended to turn into limitation use.Such as
Use ground at this, unless the interior text clearly refers else, otherwise singulative " one ", " one " and the "the" be intended to by
Those multiple forms are also included.Those term "comprising"s and/or " comprising " will become further apparent when being used in this specification,
Represent the presence of the feature, integer, step, operation, component and/or component, but be not excluded for one or more further features, it is whole
Number, step, operation, component, component and/or the presence of its group or increase.Unless otherwise indicated, narrative tense, a value scope bag
Bound containing the scope and any subrange therebetween.
Described above is the preferred embodiment of the present invention, it is noted that for those skilled in the art
For, on the premise of principle of the present invention is not departed from, some improvements and modifications can also be made, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (14)
1. a kind of image capturing method, applied to mobile terminal, it is characterised in that including：
After the camera startup for obtaining the mobile terminal, pair that the correspondence of touch operation at least twice is produced on image preview interface
Jiao's instruction；
Instructed according to the focusing, determine that the target of the camera shoots f-number；
F-number is shot according to the target to shoot the destination object in described image preview interface, obtains target figure
Picture.
2. image capturing method according to claim 1, it is characterised in that described to be instructed according to the focusing, determines institute
The step of target for stating camera shoots f-number, including：
Actual range between acquisition destination object to be captured and the focus of the camera, the destination object to be captured
Position with the touch operation corresponding position of the image in described image preview interface it is identical；
Compare the focal distance of the actual range and the camera, obtain comparative result；
According to the comparative result, the shooting f-number of the correspondence destination object is obtained；
Determine that the maximum shooting f-number of numerical value shoots f-number for target.
3. image capturing method according to claim 2, it is characterised in that described according to the comparative result, acquisition pair
The step of answering the shooting f-number of the destination object, including：
If the actual range is less than the focal distance, according to preceding depth of field formula Δ L1=F δ L2/(f2+ F δ L), calculate
To corresponding shooting f-number F；
If the actual range is more than the focal distance, according to rear depth of field formula Δ L2=F δ L2/(f2- F δ L), calculate
To corresponding shooting f-number F；Wherein,
Δ L1=L-S, Δ L2=S-L, δ is allow disperse circular diameter, and L is focal distance, and f is focal length, and S is actual range.
4. image capturing method according to claim 2, it is characterised in that the comparison actual range with it is described
Before the focal distance of camera, the step of obtaining comparative result, in addition to：
After multiple actual ranges are got, the focal distance of the camera is adjusted；Wherein, the focal distance after adjustment is more than
Minimum actual range in the multiple actual range, and less than the maximum actual range in the multiple actual range.
5. image capturing method according to claim 1, it is characterised in that described that f-number pair is shot according to the target
Destination object in described image preview interface is shot, the step of obtaining target image, including：
F-number is shot according to the target aperture adjustment is carried out to the camera, and adjusted based on the first predetermined manner correspondence
The shutter speed of the camera；
If the shutter speed after adjustment is less than or equal to default shutter speed, destination object is entered after shooting instruction is got
Row is shot, and obtains target image；
If the shutter speed after adjustment is more than default shutter speed, warning prompting, Huo Zheji are carried out based on default alerting pattern
In the sensitivity of the second predetermined manner correspondence adjustment camera, destination object is clapped after shooting instruction is got
Take the photograph, obtain target image.
6. image capturing method according to claim 1, it is characterised in that the camera of the acquisition mobile terminal
After startup, the step of focusing that the correspondence of touch operation at least twice is produced on image preview interface is instructed, including：
On the image preview interface after the camera of the mobile terminal starts, according to preset mark mode, point out described in extremely
Few touch operation twice；
If getting mark cancel an order, the prompting in described image preview interface is eliminated；
Obtain and do not eliminate the focusing instruction that the touch operation correspondence of prompting is produced.
7. a kind of mobile terminal, it is characterised in that including：
Acquisition module, after the camera startup for obtaining the mobile terminal, touches behaviour at least twice on image preview interface
Make the focusing instruction that correspondence is produced；
Determining module, the focusing for being got according to the acquisition module is instructed, and determines that the target of the camera is clapped
Take the photograph f-number；
Taking module, the target for being determined according to the determining module shoots f-number in described image preview interface
Destination object shot, obtain target image.
8. mobile terminal according to claim 7, it is characterised in that the determining module includes：
First acquisition submodule, the actual range for obtaining between the focus of destination object to be captured and the camera,
Position of the image of the destination object to be captured in described image preview interface position corresponding with the touch operation
It is identical；
Comparison sub-module, the focal distance for comparing the actual range and the camera, obtains comparative result；
Submodule is obtained, for according to the comparative result, obtaining the shooting f-number of the correspondence destination object；
Determination sub-module, for determining that the maximum shooting f-number of numerical value is target shooting f-number.
9. mobile terminal according to claim 8, it is characterised in that the acquisition submodule includes：
First processing units, if being less than the focal distance for the actual range, according to preceding depth of field formula Δ L1=F δ
L2/ (f2+F δ L), calculating obtains corresponding shooting f-number F；
Second processing unit, if being more than the focal distance for the actual range, according to rear depth of field formula Δ L2=F δ
L2/ (f2-F δ L), calculating obtains corresponding shooting f-number F；Wherein,
Δ L1=L-S, Δ L2=S-L, δ is allow disperse circular diameter, and L is focal distance, and f is focal length, and S is actual range.
10. mobile terminal according to claim 8, it is characterised in that the determining module also includes：
First adjustment submodule, for after multiple actual ranges are got, adjusting the focal distance of the camera；Wherein,
Focal distance after adjustment is more than the minimum actual range in the multiple actual range, and less than in the multiple actual range
Maximum actual range.
11. mobile terminal according to claim 7, it is characterised in that the taking module includes：
Second adjustment submodule, carries out aperture adjustment, and be based on for shooting f-number according to the target to the camera
The shutter speed of the first predetermined manner correspondence adjustment camera；
First shooting submodule, if the shutter speed after for adjusting is less than or equal to default shutter speed, is getting bat
Destination object is shot after taking the photograph instruction, target image is obtained；
Second shooting submodule, if the shutter speed after for adjusting is more than default shutter speed, based on default alerting pattern
Warning prompting, or the sensitivity based on the second predetermined manner correspondence adjustment camera are carried out, instruction is shot getting
Destination object is shot afterwards, target image is obtained.
12. mobile terminal according to claim 7, it is characterised in that the acquisition module includes：
Prompting submodule, for the image preview interface after the startup of the camera of the mobile terminal, according to preset mark
Mode, touch operation at least twice described in prompting；
Prompting revocation submodule, if for getting mark cancel an order, eliminating the prompting in described image preview interface；
Second acquisition submodule, does not eliminate the focusing instruction that the touch operation correspondence of prompting is produced for obtaining.
13. a kind of mobile terminal, including memory, processor and it is stored on the memory and can transports on the processor
Capable computer program；Characterized in that, being realized during the computing device described program such as any one of claim 1~6 institute
Step in the image capturing method stated.
14. a kind of computer-readable recording medium, is stored thereon with computer program, it is characterised in that the program is by processor
The step in the image capturing method as described in any one of claim 1~6 is realized during execution.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108124103A (en) * | 2017-12-28 | 2018-06-05 | 努比亚技术有限公司 | Image capturing method, mobile terminal and computer readable storage medium |
| CN109001215A (en) * | 2018-08-03 | 2018-12-14 | 深圳大图科创技术开发有限公司 | A kind of power terminals defect detecting system based on machine vision |
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