CN107592471A - A kind of high dynamic range images image pickup method and mobile terminal - Google Patents
A kind of high dynamic range images image pickup method and mobile terminal Download PDFInfo
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Abstract
The present invention, which provides a kind of high dynamic range images image pickup method and mobile terminal, this method, to be included：Obtain the preview image of camera collection；The preview image is divided into N number of subregion；Obtain the exposure parameter per sub-regions；Based on exposure parameter corresponding to every sub-regions, it is determined that exposure image corresponding to per sub-regions；Exposure image corresponding to all subregions is subjected to image synthesis processing, exports high dynamic range images；Wherein, N is the integer more than 1.It so can effectively lift the shooting effect of high dynamic range images.
Description
Technical field
The present invention relates to communication technical field, more particularly to a kind of high dynamic range images image pickup method and mobile terminal.
Background technology
With the development of the communication technology, the mobile terminal such as mobile phone and tablet personal computer has become can not in people's daily life
Or scarce instrument.In order to meet the requirement of the shoot function of mobile terminal, HDR (High-Dynamic Range,
HDR) image taking technology is gradually applied in mobile terminal, mobile terminal can be captured respectively by camera long exposure,
The photo of short exposure and normal exposure, and the multiple pictures of crawl are synthesized to obtain HDR image, the HDR image of synthesis
With more balanced exposure effect, so as to lift the shooting effect of mobile terminal shooting.
At present, during being shot using HDR screening-modes, generally by the mode of central heavy spot light-metering,
Exposure parameter is determined, and the exposure parameter of each two field picture is effective to entire picture.However, the brightness due to entire picture in itself
Information is different, is exposed with same exposure parameter, can cause the subregional feelings that overexposure be present or owe exposure in the middle part of picture
Condition, so that the shooting quality of photo reduces.It can be seen that the exposure parameter of existing HDR screening-modes exposes to preview image
During light processing, the image local after exposed processing can have overexposure or deficient the problem of exposing.
The content of the invention
The embodiment of the present invention provides a kind of high dynamic range images image pickup method and mobile terminal, is clapped with solving existing HDR
The exposure parameter for taking the photograph pattern is exposed in processing procedure to preview image, and the image local after exposed processing can be present
The problem of exposing or owing to expose.
In order to solve the above technical problems, what the present invention was realized in：A kind of high dynamic range images image pickup method, application
In the mobile terminal including camera, including：Obtain the preview image of camera collection；The preview image is divided into N number of
Subregion；Obtain the exposure parameter per sub-regions；Based on exposure parameter corresponding to every sub-regions, it is determined that each sub-district
Exposure image corresponding to domain；Exposure image corresponding to all subregions is subjected to image synthesis processing, exports HDR figure
Picture；Wherein, N is the integer more than 1.
In a first aspect, the embodiments of the invention provide a kind of high dynamic range images image pickup method, applied to including shooting
The mobile terminal of head, including：
Obtain the preview image of camera collection；
The preview image is divided into N number of subregion；
Obtain the exposure parameter per sub-regions；
Based on exposure parameter corresponding to every sub-regions, it is determined that exposure image corresponding to per sub-regions；
Exposure image corresponding to all subregions is subjected to image synthesis processing, exports high dynamic range images；
Wherein, N is the integer more than 1.
Second aspect, the embodiment of the present invention also provide a kind of mobile terminal, including camera, and the mobile terminal also wraps
Include：
First acquisition module, for obtaining the preview image of camera collection；
Division module, for the preview image to be divided into N number of subregion；
Second acquisition module, for obtaining the exposure parameter of every sub-regions；
Determining module, for based on exposure parameter corresponding to every sub-regions, being exposed it is determined that every sub-regions are corresponding
Light image；
Synthesis module, for exposure image corresponding to all subregions to be carried out into image synthesis processing, export high dynamic range
Enclose image；
Wherein, N is the integer more than 1.
The third aspect, the embodiment of the present invention also provide a kind of mobile terminal, including processor, memory and are stored in described
On memory and the computer program that can run on the processor, the computer program is by real during the computing device
The step of existing above-mentioned high dynamic range images image pickup method.
Fourth aspect, the embodiment of the present invention also provide a kind of computer-readable recording medium, the computer-readable storage
Computer program is stored with medium, the computer program realizes above-mentioned high dynamic range images shooting when being executed by processor
The step of method.
In embodiments of the present invention, by the way that preview image is divided into N number of subregion, and the exposure per sub-regions is obtained
Parameter, using every sub-regions, each corresponding exposure parameter is exposed processing to preview image respectively, can obtain with often
Initial exposure image corresponding to sub-regions, and image corresponding to subregion corresponding in each initial exposure image is true
It is set to exposure image corresponding to the subregion, and exposure image corresponding to all subregions is subjected to splicing synthesis processing, you can
Obtain the high dynamic range images of preview image.Compared to prior art, obtained HDR is synthesized in this way
Image is relatively sharp and true, effectively improves the shooting effect of high dynamic range images.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, needed for being described below to 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, can also be obtained according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 is the flow chart for the high dynamic range images image pickup method that one embodiment of the invention provides；
Fig. 2 is the division schematic diagram of preview image subregion provided by the invention；
Fig. 3 is the flow chart for the high dynamic range images image pickup method that another embodiment of the present invention provides；
Fig. 4 is the structure chart for the mobile terminal that one embodiment of the invention provides；
Fig. 5 is the structure chart of determining module in the mobile terminal that one embodiment of the invention provides；
Fig. 6 is the structure chart that submodule is exposed in the mobile terminal that one embodiment of the invention provides；
Fig. 7 is one of structure chart of division module in the mobile terminal that one embodiment of the invention provides；
Fig. 8 is one of structure chart of the second acquisition module in the mobile terminal that one embodiment of the invention provides；
Fig. 9 is two of the structure chart of division module in the mobile terminal that one embodiment of the invention provides；
Figure 10 is two of the structure chart of the second acquisition module in the mobile terminal that one embodiment of the invention provides；
Figure 11 is the structure chart for the mobile terminal that further embodiment of this invention provides.
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 describes, it is clear that described embodiment is part of the embodiment of the present 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.
Referring to Fig. 1, Fig. 1 is the flow chart for the high dynamic range images image pickup method that one embodiment of the invention provides, and is applied
In the mobile terminal including camera, as shown in figure 1, comprising the following steps：
Step 101, the preview image for obtaining camera collection.
In the step, camera application program is opened, obtains the preview image of camera collection.
Step 102, the preview image is divided into N number of subregion.
In the step, if receiving shooting instruction under HDR screening-modes, preview image is divided into N number of subregion,
Wherein N is the integer more than 1.
Wherein, the division of subregion can be divided according to user's division rule set in advance, can also be according to bat
Scene is taken the photograph to be divided.As shown in Fig. 2 for example, when preview image each orientation in space plane bright-dark degree not for the moment,
Preview image can be divided into the equivalent subregion of tetra- sizes of ABCD according to orientation division rule.
Step 103, the exposure parameter for obtaining every sub-regions.
, can be by carrying out light-metering to every sub-regions in the step, and according to photometry result, each sub-district is calculated
The exposure parameter in domain.
Step 104, based on described per exposure parameter corresponding to sub-regions, it is determined that exposure diagram corresponding to per sub-regions
Picture.
In the step, exposure parameter corresponding to per sub-regions can be used to enter exposure-processed to preview image, to obtain
Exposure image corresponding to per sub-regions.
Step 105, exposure image corresponding to all subregions is carried out to image synthesis processing, output HDR figure
Picture.
In the step, exposure image corresponding to all subregions that step 104 is acquired carries out splicing synthesis processing,
The high dynamic range images of preview image are can obtain, and export the high dynamic range images.
At present, during being shot using HDR screening-modes, by carrying out central emphasis to view picture preview image
Light-metering, and determine according to the photometry result of central heavy spot light-metering the exposure parameter of view picture preview image；However, due to view picture preview
Image may have the different region of bright-dark degree, and place is exposed to preview image by using same exposure parameter
Reason, the image after exposure can be caused overexposure to be present and owe the region exposed, so as to cause to deposit using the photo that HDR screening-modes are shot
In ropy problem.
In the present embodiment, by the way that preview image is divided into N number of subregion, and the exposure obtained per sub-regions is joined
Number, using every sub-regions, each corresponding exposure parameter is exposed processing to preview image respectively, can obtain and each
Initial exposure image corresponding to subregion, and image corresponding to subregion corresponding in each initial exposure image is determined
For exposure image corresponding to the subregion, and exposure image corresponding to all subregions carried out to splice synthesis processing, you can
To the high dynamic range images of preview image.Compared to prior art, obtained HDR figure is synthesized in this way
As relatively sharp and true, the shooting effect of high dynamic range images is effectively improved.
It should be noted that the division of subregion is thinner, the high dynamic range images effect of synthesis is better；But subregion
When the quantity of division is excessive, the mobile terminal processor amount of calculation of exposure process can be increased, and then increase the load of mobile terminal,
Other operations of mobile terminal are influenceed, therefore subregion quantity is generally located on 2~4.Can so movement not increased eventually
In the case of end load, moreover it is possible to export relatively sharp and real high dynamic range images.
In the embodiment of the present invention, above-mentioned mobile terminal can with any mobile terminal including camera, such as：Mobile phone, put down
Plate computer (Tablet Personal Computer), laptop computer (Laptop Computer), personal digital assistant
(personal digital assistant, abbreviation PDA), mobile Internet access device (Mobile Internet Device, MID)
Or wearable device (Wearable Device) etc..
The high dynamic range images image pickup method of the embodiment of the present invention, the preview image gathered by obtaining camera；Will
The preview image is divided into N number of subregion；Obtain the exposure parameter per sub-regions；Based on corresponding to every sub-regions
Exposure parameter, it is determined that exposure image corresponding to per sub-regions；Exposure image corresponding to all subregions is subjected to image synthesis
Processing, export high dynamic range images；Wherein, N is the integer more than 1.It so can effectively lift high dynamic range images
Shooting effect.
Referring to Fig. 3, Fig. 3 is the flow chart for the high dynamic range images image pickup method that another embodiment of the present invention provides, such as
Shown in Fig. 3, comprise the following steps：
Step 301, the preview image for obtaining camera collection.
In the step, camera application program is opened, obtains the preview image of camera collection.
Step 302, the preview image is divided into N number of subregion.
In the step, if receiving shooting instruction under HDR screening-modes, preview image is divided into N number of subregion,
Wherein N is the integer more than 1.
Optionally, in step 302, can based on the preview image space plane distribution, by the preview graph
As being divided into N number of subregion.
In present embodiment, based on preview image in the distribution of space plane, preview image is divided into N number of subregion
During, it can be divided, can also be divided according to photographed scene according to user's division rule set in advance.Such as figure
Shown in 2, such as, when preview image each orientation in space plane bright-dark degree not for the moment, can divide and advise according to orientation
Preview image is then divided into the equivalent subregion of tetra- sizes of ABCD.
Optionally, step 302 can also include：Scene detection is carried out to the preview image, obtains scene detection results；
And according to scene detection results, the preview image is divided into N number of subregion.
In present embodiment, the division of subregion can be carried out with photographed scene, such as, when detecting the upper of preview image
(1/3) when partly needing overexposure, remainder normal exposure, then preview image can be divided into two sub-regions, its
In corresponding upper (1/3) parts of images of a sub-regions, (2/3) parts of images under another sub-regions are corresponding.
It is further alternative, in step 302, the brightness value of each pixel in the preview image is also based on,
The preview image is divided into N number of subregion；Wherein, a corresponding brightness value section per sub-regions.
In present embodiment, preview image can be divided into according to the brightness value of each pixel in preview image N number of
Subregion.By carrying out the division of subregion thus according to brightness value, therefore the subregion divided in this way is not obvious
Boundary line delimitation, simply according to the difference of brightness value, each pixel is divided into different groups, and form different sub-districts
Domain.
The one of present embodiment has particular application as, and first obtains the brightness value of each pixel in preview image；Then, by it
The all pixels point that middle brightness value is less than the first predetermined luminance value is referred to first group, and pixel all in first group is formed
First subregion；The all pixels point that brightness value is more than to the second predetermined luminance is referred to second group, and all pictures in second group
Vegetarian refreshments forms the second subregion；The all pixels point that brightness value is between the first predetermined luminance value and the second predetermined luminance value
The 3rd group is referred to, and pixel all in the 3rd group forms the 3rd subregion.
The division of subregion is carried out according to the brightness value of each pixel, can obtain what is more matched with every sub-regions
Exposure parameter, so as to obtain more real exposure image, further to lift the shooting effect of high dynamic range images.
Step 303, the exposure parameter for obtaining every sub-regions.
, can be by carrying out light-metering to every sub-regions in the step, and according to photometry result, each sub-district is calculated
The exposure parameter in domain.
Specifically, the photometry result per sub-regions can be obtained by carrying out central heavy spot light-metering to every sub-regions；
And according to the photometry result of every sub-regions, the exposure parameter of every sub-regions is calculated.Which, which is mainly used in, to be passed through
Space plane divides subregion.
The photometry result per sub-regions can also be obtained by carrying out spot light-metering to every sub-regions；And according to each
The photometry result of subregion, the exposure parameter of every sub-regions is calculated.Which is mainly used in by the bright of pixel
Angle value divides subregion.
Step 304, according to described per exposure parameter corresponding to sub-regions, place is exposed to the preview image respectively
Reason, obtain initial exposure image corresponding with per sub-regions.
In the step, by the way that according to exposure parameter corresponding to every sub-regions, processing is exposed to preview image respectively,
Initial exposure image corresponding with per sub-regions can be obtained.
Optionally, the quantity of the camera is M, and M is the integer more than 1；Step 304 can also include：According to M and
N magnitude relationship, it is determined that target subregion corresponding to each camera；According to target sub-district corresponding to each camera
Domain, it is determined that target light exposure parameter corresponding to each camera；All cameras are controlled according to each self-corresponding target light exposure parameter,
Processing is exposed to the preview image respectively, obtains initial exposure image corresponding with per sub-regions；Wherein, each take the photograph
Picture head corresponds to S target subregion, and each camera corresponds to S target light exposure parameter, and S is the integer more than 0.
In the present embodiment, when the quantity of camera is two or more, can according to the quantity M of camera with
The quantity N of subregion magnitude relationship, it is determined that target subregion corresponding to each camera, and according to corresponding to each camera
Target subregion, it is determined that target light exposure parameter corresponding to each camera, by controlling all cameras according to each self-corresponding
Target light exposure parameter, processing is exposed to preview image respectively, you can obtain initial exposure image corresponding to every sub-regions.
Compared to the mobile terminal that the quantity for camera only has one, it is necessary to control during being exposed to preview image
Camera processed is exposed processing to preview image using exposure parameter corresponding to every sub-regions successively, can effectively save exposure
The time of light processing, lift exposure efficiency.
Such as shown in Fig. 2 preview image has been divided into the equivalent subregion of tetra- sizes of ABCD, and setting exposes every time
It is t the time required to light processing, for there was only the mobile terminal of a camera, it is necessary to which 4t time, could complete to use ABCD
Exposure process of the exposure parameter to preview image corresponding to four sub-regions.And for being taken the photograph including the first camera and second
As the mobile terminal of head, by setting the first camera corresponding A C subregions, and exposure parameter corresponding to AC subregions is associated；The
Two cameras correspond to BD subregions, and associate exposure parameter corresponding to BD subregions；Controlling the first camera and the second shooting
During head is exposed to preview image, can first control the first camera using exposure parameter corresponding to A subregions and
Second camera is exposed to preview image simultaneously using exposure parameter corresponding to B subregions, then in the shooting of control first
Head is using exposure parameter corresponding to C subregions and second camera using exposure parameter corresponding to D subregions simultaneously to preview graph
As being exposed, so required total exposure time is 2t.Compared to first way, the time for exposure of half can be saved,
Effectively improve exposure efficiency.
Step 305, for every sub-regions, by the figure in corresponding initial exposure image with the subregion same area
Exposure image as being defined as the subregion.
,, can for every sub-regions after initial exposure image corresponding to every sub-regions is acquired in the step
So that the exposure image of the subregion will be defined as in corresponding initial exposure image with the image of the subregion same area.
Specifically, processing is such as exposed to preview image using the first exposure parameter corresponding to the first subregion, can
To obtain the first initial exposure image, and using the image of corresponding first subregion in initial exposure image as the first subregion
Exposure image.
Step 306, exposure image corresponding to all subregions is carried out to image synthesis processing, output HDR figure
Picture.
In the step, exposure image corresponding to all subregions that step 305 is acquired carries out splicing synthesis processing,
The high dynamic range images of preview image are can obtain, and export the high dynamic range images.
In the present embodiment, by the way that preview image is divided into N number of subregion, and the exposure obtained per sub-regions is joined
Number, using every sub-regions, each corresponding exposure parameter is exposed processing to preview image respectively, can obtain and each
Initial exposure image corresponding to subregion, and image corresponding to subregion corresponding in each initial exposure image is determined
For exposure image corresponding to the subregion, and exposure image corresponding to all subregions carried out to splice synthesis processing, you can
To the high dynamic range images of preview image.Compared to prior art, obtained HDR figure is synthesized in this way
As relatively sharp and true, the shooting effect of high dynamic range images is effectively improved.
The high dynamic range images image pickup method of the embodiment of the present invention, the preview image gathered by obtaining camera；Will
The preview image is divided into N number of subregion；Obtain the exposure parameter per sub-regions；According to corresponding to every sub-regions
Exposure parameter, processing is exposed to the preview image respectively, obtains initial exposure image corresponding with per sub-regions；It is right
In every sub-regions, the image in corresponding initial exposure image with the subregion same area is defined as the subregion
Exposure image；Exposure image corresponding to all subregions is subjected to image synthesis processing, exports high dynamic range images；Its
In, N is the integer more than 1.It so can effectively lift the shooting effect of high dynamic range images.
Referring to Fig. 4, Fig. 4 is the structure chart for the mobile terminal that one embodiment of the invention provides, as shown in figure 4, mobile terminal
400 include camera, and the mobile terminal 400 also includes the first acquisition module 401, division module 402, the second acquisition module
403rd, determining module 404 and synthesis module 405, wherein, the first acquisition module 401 is connected with division module 402, division module
402 are also connected with the second acquisition module 403, and the second acquisition module 403 is also connected with determining module 404, determining module 404 also with
Synthesis module 405 connects：
First acquisition module 401, for obtaining the preview image of camera collection；
Division module 402, for the preview image to be divided into N number of subregion；
Second acquisition module 403, for obtaining the exposure parameter of every sub-regions；
Determining module 404, for based on described per exposure parameter corresponding to sub-regions, it is determined that corresponding to per sub-regions
Exposure image；
Synthesis module 405, for exposure image corresponding to all subregions to be carried out into image synthesis processing, export high dynamic
Range image；
Wherein, N is the integer more than 1.
Optionally, as shown in figure 5, the determining module 404 includes：
Expose submodule 4041, for according to described per exposure parameter corresponding to sub-regions, respectively to the preview graph
As being exposed processing, initial exposure image corresponding with per sub-regions is obtained；
First determination sub-module 4042, for for every sub-regions, by corresponding initial exposure image with the son
The image of region same area is defined as the exposure image of the subregion.
Optionally, the quantity of the camera is M, and M is the integer more than 1；As shown in fig. 6, the exposure submodule
4041 include：
First determining unit 40411, for the magnitude relationship according to M and N, it is determined that target sub-district corresponding to each camera
Domain；
Second determining unit 40412, for the target subregion according to corresponding to each camera, it is determined that each shooting
Target light exposure parameter corresponding to head；
Exposing unit 40413, for controlling all cameras according to each self-corresponding target light exposure parameter, respectively to described
Preview image is exposed processing, obtains initial exposure image corresponding with per sub-regions；
Wherein, each camera corresponds to S target subregion, and each camera corresponds to S target light exposure parameter, and S is
Integer more than 0.
Optionally, the division module 402, specifically for based on the preview image space plane distribution, by institute
State preview image and be divided into N number of subregion.
Optionally, as shown in fig. 7, the division module 402 includes：
Detection sub-module 4021, for carrying out scene detection to the preview image, obtain scene detection results；
First division submodule 4022, for according to scene detection results, the preview image to be divided into N number of sub-district
Domain.
Optionally, as shown in figure 8, second acquisition module 403 includes：
First light-metering submodule 4031, for carrying out central heavy spot light-metering to every sub-regions, obtain per sub-regions
Photometry result；
Second determination sub-module 4032, for the photometry result according to every sub-regions, it is determined that per sub-regions
Exposure parameter.
Optionally, the division module 402, specifically for the brightness value based on each pixel in the preview image,
The preview image is divided into N number of subregion；
Wherein, a corresponding brightness value section per sub-regions.
Optionally, as shown in figure 9, the division module 402 includes：
Acquisition submodule 4023, for obtaining the brightness value of each pixel in the preview image；
Second division submodule 4024, all pixels point for brightness value to be less than to the first predetermined luminance value are divided into the
One subregion；
3rd division submodule 4025, all pixels point for brightness value to be more than to the second predetermined luminance value are divided into the
Two subregions；
4th division submodule 4026, for brightness value to be between the first predetermined luminance value and the second predetermined luminance value
All pixels point be divided into the 3rd subregion.
Optionally, as shown in Figure 10, second acquisition module 403 includes：
Second light-metering submodule 4033, for carrying out spot light-metering to every sub-regions, obtain the light-metering knot per sub-regions
Fruit；
3rd determination sub-module 4034, for the photometry result according to every sub-regions, it is determined that per sub-regions
Exposure parameter.
Mobile terminal 400 can realize each process that mobile terminal is realized in Fig. 1 to Fig. 3 embodiment of the method, to keep away
Exempt to repeat, repeat no more here.
The mobile terminal 400 of the embodiment of the present invention, the preview image gathered by obtaining camera；By the preview image
It is divided into N number of subregion；Obtain the exposure parameter per sub-regions；Based on described per exposure parameter corresponding to sub-regions, really
Fixed exposure image corresponding to per sub-regions；Exposure image corresponding to all subregions is subjected to image synthesis processing, output is high
Dynamic image；Wherein, N is the integer more than 1.It so can effectively lift the shooting effect of high dynamic range images.
Figure 11 is the structure chart of the another mobile terminal for implementing to provide of the present invention, as shown in figure 11, the mobile terminal 1100
Including but not limited to：Radio frequency unit 1101, mixed-media network modules mixed-media 1102, audio output unit 1103, input block 1104, sensor
1105th, display unit 1106, user input unit 1107, interface unit 1108, memory 1109, processor 1110, power supply
1111st, the part such as camera 1112.It will be understood by those skilled in the art that the mobile terminal structure shown in Figure 11 is not formed
Restriction to mobile terminal, mobile terminal can be included than illustrating more or less parts, either combine some parts or
Different part arrangements.In embodiments of the present invention, mobile terminal include but is not limited to mobile phone, tablet personal computer, notebook computer,
Palm PC, car-mounted terminal, wearable device and pedometer etc..
Wherein, processor 1110, for obtaining the preview image of camera collection；The preview image is divided into N number of
Subregion；Obtain the exposure parameter per sub-regions；Based on exposure parameter corresponding to every sub-regions, it is determined that each sub-district
Exposure image corresponding to domain；Exposure image corresponding to all subregions is subjected to image synthesis processing, exports HDR figure
Picture；Wherein, N is the integer more than 1.
Optionally, the processor 1110 is additionally operable to：According to exposure parameter corresponding to every sub-regions, respectively to institute
State preview image and be exposed processing, obtain initial exposure image corresponding with per sub-regions；, will be right for every sub-regions
It is defined as the exposure image of the subregion in the initial exposure image answered with the image of the subregion same area.
Optionally, the quantity of the camera is M, and M is the integer more than 1；
The processor 1110 is additionally operable to：According to M and N magnitude relationship, it is determined that target sub-district corresponding to each camera
Domain；According to target subregion corresponding to each camera, it is determined that target light exposure parameter corresponding to each camera；Control institute
Have camera according to each self-corresponding target light exposure parameter, processing be exposed to the preview image respectively, obtain with each
Initial exposure image corresponding to subregion；Wherein, each camera corresponds to S target subregion, and each camera corresponds to S mesh
Exposure parameter is marked, and S is the integer more than 0.
Optionally, the processor 1110 is additionally operable to：, will be described pre- based on the preview image in the distribution of space plane
Image of looking at is divided into N number of subregion.
Optionally, the processor 1110 is additionally operable to：Scene detection is carried out to the preview image, obtains scene detection knot
Fruit；According to scene detection results, the preview image is divided into N number of subregion.
Optionally, the processor 1110 is additionally operable to：Central heavy spot light-metering is carried out to every sub-regions, obtains each sub-district
The photometry result in domain；According to the photometry result per sub-regions, it is determined that the exposure parameter per sub-regions.
Optionally, the processor 1110 is additionally operable to：Based on the brightness value of each pixel in the preview image, by institute
State preview image and be divided into N number of subregion；Wherein, a corresponding brightness value section per sub-regions.
Optionally, the processor 1110 is additionally operable to：Obtain the brightness value of each pixel in the preview image；Will be bright
The all pixels point that angle value is less than the first predetermined luminance value is divided into the first subregion；Brightness value is more than the second predetermined luminance value
All pixels point be divided into the second subregion；Brightness value is between the first predetermined luminance value and the second predetermined luminance value
All pixels point is divided into the 3rd subregion.
Optionally, the processor 1110 is additionally operable to：Spot light-metering is carried out to every sub-regions, obtains the survey per sub-regions
Light result；According to the photometry result per sub-regions, it is determined that the exposure parameter per sub-regions.
Mobile terminal 1100 can realize each process that mobile terminal is realized in previous embodiment, to avoid repeating, this
In repeat no more.
The mobile terminal 1100 of the embodiment of the present invention, the preview image gathered by obtaining camera；By the preview graph
As being divided into N number of subregion；Obtain the exposure parameter per sub-regions；Based on described per exposure parameter corresponding to sub-regions,
It is determined that exposure image corresponding to per sub-regions；Exposure image corresponding to all subregions is subjected to image synthesis processing, output
High dynamic range images；Wherein, N is the integer more than 1.It so can effectively lift the shooting effect of high dynamic range images.
It should be understood that in the embodiment of the present invention, radio frequency unit 1101 can be used for receiving and sending messages or communication process in, signal
Reception and transmission, specifically, by from base station downlink data receive after, handled to processor 1110；In addition, will be up
Data are sent to base station.Generally, radio frequency unit 1101 includes but is not limited to antenna, at least one amplifier, transceiver, coupling
Device, low-noise amplifier, duplexer etc..In addition, radio frequency unit 1101 can also pass through wireless communication system and network and other
Equipment communication.
Mobile terminal has provided the user wireless broadband internet by mixed-media network modules mixed-media 1102 and accessed, and such as helps user to receive
Send e-mails, browse webpage and access streaming video etc..
Audio output unit 1103 can be receiving by radio frequency unit 1101 or mixed-media network modules mixed-media 1102 or in memory
It is sound that the voice data stored in 1109, which is converted into audio signal and exported,.Moreover, audio output unit 1103 can be with
The audio output related to the specific function that mobile terminal 1100 performs is provided (for example, call signal receives sound, message sink
Sound etc.).Audio output unit 1103 includes loudspeaker, buzzer and receiver etc..
Input block 1104 is used to receive audio or video signal.Input block 1104 can include graphics processor
(Graphics Processing Unit, GPU) 11041 and microphone 11042, graphics processor 11041 in video to capturing
The static images or the view data of video obtained in pattern or image capture mode by image capture apparatus (such as camera) enter
Row processing.Picture frame after processing may be displayed on display unit 1106.Picture frame after the processing of graphics processor 11041
It can be stored in memory 1109 (or other storage mediums) or be carried out via radio frequency unit 1101 or mixed-media network modules mixed-media 1102
Send.Microphone 11042 can receive sound, and can be voice data by such acoustic processing.Audio after processing
Data can be converted to the lattice that mobile communication base station can be sent to via radio frequency unit 1101 in the case of telephone calling model
Formula exports.
Mobile terminal 1100 also includes at least one sensor 1105, for example, optical sensor, motion sensor and other
Sensor.Specifically, optical sensor includes ambient light sensor and proximity transducer, wherein, ambient light sensor can be according to ring
The light and shade of environmental light adjusts the brightness of display panel 11061, proximity transducer can when mobile terminal 1100 is moved in one's ear,
Close display panel 11061 and/or backlight.As one kind of motion sensor, accelerometer sensor can detect in all directions
The size of (generally three axles) acceleration, can detect that size and the direction of gravity when static, available for identification mobile terminal appearance
State (such as horizontal/vertical screen switching, dependent game, magnetometer pose calibrating), Vibration identification correlation function (such as pedometer, percussion)
Deng；Sensor 1105 can also include fingerprint sensor, pressure sensor, iris sensor, molecule sensor, gyroscope, gas
Meter, hygrometer, thermometer, infrared ray sensor etc. are pressed, will not be repeated here.
Display unit 1106 is used for the information for showing the information inputted by user or being supplied to user.Display unit 1106 can
Including display panel 11061, liquid crystal display (Liquid Crystal Display, LCD), organic light-emitting diodes can be used
Forms such as (Organic Light-Emitting Diode, OLED) is managed to configure display panel 11061.
User input unit 1107 can be used for the numeral or character information for receiving input, and produce the use with mobile terminal
The key signals input that family is set and function control is relevant.Specifically, user input unit 1107 include contact panel 11071 with
And other input equipments 11072.Contact panel 11071, also referred to as touch-screen, collect touch behaviour of the user on or near it
Make (for example user uses any suitable objects or annex such as finger, stylus on contact panel 11071 or in contact panel
Operation near 11071).Contact panel 11071 may include both touch detecting apparatus and touch controller.Wherein, touch
The touch orientation of detection means detection user is touched, and detects the signal that touch operation is brought, transmits a signal to touch controller；
Touch controller receives touch information from touch detecting apparatus, and is converted into contact coordinate, then gives processor 1110,
Order that reception processing device 1110 is sent simultaneously is performed.Furthermore, it is possible to using resistance-type, condenser type, infrared ray and surface
The polytypes such as sound wave realize contact panel 11071.Except contact panel 11071, user input unit 1107 can also include
Other input equipments 11072.Specifically, other input equipments 11072 can include but is not limited to physical keyboard, function key (ratio
Such as volume control button, switch key), trace ball, mouse, action bars, will not be repeated here.
Further, contact panel 11071 can be covered on display panel 11061, when contact panel 11071 detects
After touch operation on or near it, processor 1110 is sent to determine the type of touch event, is followed by subsequent processing device 1110
Corresponding visual output is provided on display panel 11061 according to the type of touch event.Although in fig. 11, contact panel
11071 realize the input of mobile terminal and output function with display panel 11061 is the part independent as two, but
In some embodiments, contact panel 11071 and display panel 11061 can be integrated and realize the input and output of mobile terminal
Function, do not limit herein specifically.
Interface unit 1108 is the interface that external device (ED) is connected with mobile terminal 1100.For example, external device (ED) can include
Wired or wireless headphone port, external power source (or battery charger) port, wired or wireless FPDP, storage card
Port, the port for connecting the device with identification module, audio input/output (I/O) port, video i/o port, earphone
Port etc..Interface unit 1108 can be used for receiving the input (for example, data message, electric power etc.) from external device (ED) simultaneously
And one or more elements that the input received is transferred in mobile terminal 1100 or it can be used in mobile terminal
Data are transmitted between 1100 and external device (ED).
Memory 1109 can be used for storage software program and various data.Memory 1109 can mainly include storage program
Area and storage data field, wherein, storing program area can storage program area, needed at least one function application program (such as
Sound-playing function, image player function etc.) etc.；Storage data field can store uses created data (ratio according to mobile phone
Such as voice data, phone directory) etc..In addition, memory 1109 can include high-speed random access memory, can also include non-
Volatile memory, for example, at least a disk memory, flush memory device or other volatile solid-state parts.
Processor 1110 is the control centre of mobile terminal, utilizes each of various interfaces and the whole mobile terminal of connection
Individual part, by running or performing the software program and/or module that are stored in memory 1109, and call and be stored in storage
Data in device 1109, the various functions and processing data of mobile terminal are performed, so as to carry out integral monitoring to mobile terminal.Place
Reason device 1110 may include one or more processing units；Preferably, processor 1110 can integrate application processor and modulation /demodulation
Processor, wherein, application processor mainly handles operating system, user interface and application program etc., modem processor master
Handle radio communication.It is understood that above-mentioned modem processor can not also be integrated into processor 1110.
Mobile terminal 1100 can also include the power supply 1111 (such as battery) to all parts power supply, it is preferred that power supply
1111 can be logically contiguous by power-supply management system and processor 1110, so as to realize that management is filled by power-supply management system
The functions such as electricity, electric discharge and power managed.
In addition, mobile terminal 1100 includes some unshowned functional modules, will not be repeated here.
Preferably, the embodiment of the present invention also provides a kind of mobile terminal, including processor 1110, memory 1109, storage
On memory 1109 and the computer program that can be run on the processor 1110, the computer program is by processor 1110
Each process of above-mentioned high dynamic range images image pickup method embodiment is realized during execution, and identical technique effect can be reached,
To avoid repeating, repeat no more here.
The embodiment of the present invention also provides a kind of computer-readable recording medium, and meter is stored with computer-readable recording medium
Calculation machine program, the computer program realize each of above-mentioned high dynamic range images image pickup method embodiment when being executed by processor
Process, and identical technique effect can be reached, to avoid repeating, repeat no more here.Wherein, described computer-readable storage
Medium, such as read-only storage (Read-Only Memory, abbreviation ROM), random access memory (Random Access
Memory, abbreviation RAM), magnetic disc or CD etc..
It should be noted that herein, term " comprising ", "comprising" or its any other variant are intended to non-row
His property includes, so that process, method, article or device including a series of elements not only include those key elements, and
And also include the other element being not expressly set out, or also include for this process, method, article or device institute inherently
Key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that including this
Other identical element also be present in the process of key element, method, article or device.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can add the mode of required general hardware platform to realize by software, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Based on such understanding, technical scheme is substantially done to prior art in other words
Going out the part of contribution can be embodied in the form of software product, and the computer software product is stored in a storage medium
In (such as ROM/RAM, magnetic disc, CD), including some instructions to cause a station terminal (can be mobile phone, computer, service
Device, air conditioner, or network equipment etc.) perform method described in each embodiment of the present invention.
Embodiments of the invention are described above in conjunction with accompanying drawing, but the invention is not limited in above-mentioned specific
Embodiment, above-mentioned embodiment is only schematical, rather than restricted, one of ordinary skill in the art
Under the enlightenment of the present invention, in the case of present inventive concept and scope of the claimed protection is not departed from, it can also make a lot
Form, belong within the protection of the present invention.
Claims (20)
- A kind of 1. high dynamic range images image pickup method, applied to the mobile terminal including camera, it is characterised in that including：Obtain the preview image of camera collection；The preview image is divided into N number of subregion；Obtain the exposure parameter per sub-regions；Based on exposure parameter corresponding to every sub-regions, it is determined that exposure image corresponding to per sub-regions；Exposure image corresponding to all subregions is subjected to image synthesis processing, exports high dynamic range images；Wherein, N is the integer more than 1.
- 2. according to the method for claim 1, it is characterised in that described based on the exposure ginseng corresponding per sub-regions Number, it is determined that corresponding to per sub-regions the step of exposure image, including：Processing is exposed to the preview image respectively per exposure parameter corresponding to sub-regions according to described, obtained and often Initial exposure image corresponding to sub-regions；For every sub-regions, will be defined as in corresponding initial exposure image with the image of the subregion same area described The exposure image of subregion.
- 3. according to the method for claim 2, it is characterised in that the quantity of the camera is M, and M is whole more than 1 Number；It is described according to described per exposure parameter corresponding to sub-regions, processing is exposed to the preview image respectively, obtained The step of initial exposure image corresponding with every sub-regions, including：According to M and N magnitude relationship, it is determined that target subregion corresponding to each camera；According to target subregion corresponding to each camera, it is determined that target light exposure parameter corresponding to each camera；All cameras are controlled to be exposed processing to the preview image respectively according to each self-corresponding target light exposure parameter, Obtain initial exposure image corresponding with per sub-regions；Wherein, each camera corresponds to S target subregion, and each camera corresponds to S target light exposure parameter, and S is more than 0 Integer.
- 4. according to the method in any one of claims 1 to 3, it is characterised in that described that the preview image is divided into N The step of sub-regions, including：Based on the preview image in the distribution of space plane, the preview image is divided into N number of subregion.
- 5. according to the method in any one of claims 1 to 3, it is characterised in that described that the preview image is divided into N The step of sub-regions, including：Scene detection is carried out to the preview image, obtains scene detection results；According to scene detection results, the preview image is divided into N number of subregion.
- 6. according to the method for claim 4, it is characterised in that described the step of obtaining the often exposure parameter of sub-regions, Including：Central heavy spot light-metering is carried out to every sub-regions, obtains the photometry result per sub-regions；According to the photometry result per sub-regions, it is determined that the exposure parameter per sub-regions.
- 7. according to the method in any one of claims 1 to 3, it is characterised in that described that the preview image is divided into N The step of sub-regions, including：Based on the brightness value of each pixel in the preview image, the preview image is divided into N number of subregion；Wherein, a corresponding brightness value section per sub-regions.
- 8. according to the method for claim 7, it is characterised in that it is described based in the preview image each pixel it is bright Angle value, the step of preview image is divided into N number of subregion, including：Obtain the brightness value of each pixel in the preview image；The all pixels point that brightness value is less than to the first predetermined luminance value is divided into the first subregion；The all pixels point that brightness value is more than to the second predetermined luminance value is divided into the second subregion；The all pixels point that brightness value is between the first predetermined luminance value and the second predetermined luminance value is divided into the 3rd sub-district Domain.
- 9. according to the method for claim 7, it is characterised in that described the step of obtaining the often exposure parameter of sub-regions, Including：Spot light-metering is carried out to every sub-regions, obtains the photometry result per sub-regions；According to the photometry result per sub-regions, it is determined that the exposure parameter per sub-regions.
- 10. a kind of mobile terminal, including camera, it is characterised in that the mobile terminal also includes：First acquisition module, for obtaining the preview image of camera collection；Division module, for the preview image to be divided into N number of subregion；Second acquisition module, for obtaining the exposure parameter of every sub-regions；Determining module, for based on described per exposure parameter corresponding to sub-regions, it is determined that exposure diagram corresponding to per sub-regions Picture；Synthesis module, for exposure image corresponding to all subregions to be carried out into image synthesis processing, export HDR figure Picture；Wherein, N is the integer more than 1.
- 11. mobile terminal according to claim 10, it is characterised in that the determining module includes：Submodule is exposed, for according to exposure parameter corresponding to every sub-regions, being exposed respectively to the preview image Light processing, obtain initial exposure image corresponding with per sub-regions；First determination sub-module, will be identical with the subregion in corresponding initial exposure image for for every sub-regions The image in region is defined as the exposure image of the subregion.
- 12. mobile terminal according to claim 11, it is characterised in that the quantity of the camera is M, and M is more than 1 Integer；The exposure submodule includes：First determining unit, for the magnitude relationship according to M and N, it is determined that target subregion corresponding to each camera；Second determining unit, for the target subregion according to corresponding to each camera, it is determined that corresponding to each camera Target light exposure parameter；Exposing unit, for controlling all cameras according to each self-corresponding target light exposure parameter, respectively to the preview image Processing is exposed, obtains initial exposure image corresponding with per sub-regions；Wherein, each camera corresponds to S target subregion, and each camera corresponds to S target light exposure parameter, and S is more than 0 Integer.
- 13. the mobile terminal according to any one of claim 10 to 12, it is characterised in that the division module, specifically For in the distribution of space plane, the preview image to be divided into N number of subregion based on the preview image.
- 14. the mobile terminal according to any one of claim 10 to 12, it is characterised in that the division module includes：Detection sub-module, for carrying out scene detection to the preview image, obtain scene detection results；First division submodule, for according to scene detection results, the preview image to be divided into N number of subregion.
- 15. mobile terminal according to claim 13, it is characterised in that second acquisition module includes：First light-metering submodule, for carrying out central heavy spot light-metering to every sub-regions, obtain the photometry result per sub-regions；Second determination sub-module, for the photometry result according to every sub-regions, it is determined that the exposure parameter per sub-regions.
- 16. the mobile terminal according to any one of claim 10 to 12, it is characterised in that the division module, specifically For the brightness value based on each pixel in the preview image, the preview image is divided into N number of subregion；Wherein, a corresponding brightness value section per sub-regions.
- 17. mobile terminal according to claim 16, it is characterised in that the division module includes：Acquisition submodule, for obtaining the brightness value of each pixel in the preview image；Second division submodule, all pixels point for brightness value to be less than to the first predetermined luminance value are divided into the first sub-district Domain；3rd division submodule, all pixels point for brightness value to be more than to the second predetermined luminance value are divided into the second sub-district Domain；4th division submodule, for all pictures that brightness value is between the first predetermined luminance value and the second predetermined luminance value Vegetarian refreshments is divided into the 3rd subregion.
- 18. mobile terminal according to claim 16, it is characterised in that second acquisition module includes：Second light-metering submodule, for carrying out spot light-metering to every sub-regions, obtain the photometry result per sub-regions；3rd determination sub-module, for the photometry result according to every sub-regions, it is determined that the exposure parameter per sub-regions.
- 19. a kind of mobile terminal, it is in its feature, including processor, memory and is stored on the memory and can be The computer program run on the processor, the computer program are realized such as claim 1 during the computing device The step of to high dynamic range images image pickup method any one of 9.
- 20. a kind of computer-readable recording medium, it is characterised in that be stored with computer on the computer-readable recording medium Program, the computer program realize HDR figure as claimed in any one of claims 1-9 wherein when being executed by processor As the step of image pickup method.
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| CN108335272A (en) * | 2018-01-31 | 2018-07-27 | 青岛海信移动通信技术股份有限公司 | A kind of method and apparatus of shooting picture |
| CN108377341A (en) * | 2018-05-14 | 2018-08-07 | Oppo广东移动通信有限公司 | Photographic method, device, terminal and storage medium |
| CN108540729A (en) * | 2018-03-05 | 2018-09-14 | 维沃移动通信有限公司 | Image processing method and mobile terminal |
| CN108900785A (en) * | 2018-09-18 | 2018-11-27 | Oppo广东移动通信有限公司 | Exposal control method, device and electronic equipment |
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| CN108377341A (en) * | 2018-05-14 | 2018-08-07 | Oppo广东移动通信有限公司 | Photographic method, device, terminal and storage medium |
| CN108900785A (en) * | 2018-09-18 | 2018-11-27 | Oppo广东移动通信有限公司 | Exposal control method, device and electronic equipment |
| CN111800580A (en) * | 2019-04-08 | 2020-10-20 | 福州瑞芯微电子股份有限公司 | High dynamic image synthesis method and storage medium |
| CN110381263A (en) * | 2019-08-20 | 2019-10-25 | Oppo广东移动通信有限公司 | Image processing method, device, storage medium and electronic equipment |
| CN110581956A (en) * | 2019-08-26 | 2019-12-17 | Oppo广东移动通信有限公司 | Image processing method, image processing device, storage medium and electronic equipment |
| CN111083389A (en) * | 2019-12-27 | 2020-04-28 | 维沃移动通信有限公司 | Method and device for shooting image |
| CN111083389B (en) * | 2019-12-27 | 2021-11-16 | 维沃移动通信有限公司 | Method and device for shooting image |
| CN113132644A (en) * | 2019-12-31 | 2021-07-16 | 深圳市海思半导体有限公司 | Method and equipment for generating high dynamic range image |
| CN112040130A (en) * | 2020-09-08 | 2020-12-04 | Oppo（重庆）智能科技有限公司 | Photographing method, photographing device, mobile terminal and computer readable storage medium |
| CN112672060A (en) * | 2020-12-29 | 2021-04-16 | 维沃移动通信有限公司 | Shooting method and device and electronic equipment |
| CN113132646A (en) * | 2021-03-30 | 2021-07-16 | 深圳市阿达视高新技术有限公司 | High dynamic range image generation method and device, computer equipment and storage medium |
| CN113132646B (en) * | 2021-03-30 | 2021-12-10 | 深圳市阿达视高新技术有限公司 | High dynamic range image generation method and device, computer equipment and storage medium |
| CN113099123A (en) * | 2021-04-07 | 2021-07-09 | 中煤科工集团重庆研究院有限公司 | High dynamic range video image acquisition method |
| CN114666497A (en) * | 2022-02-28 | 2022-06-24 | 青岛海信移动通信技术股份有限公司 | Imaging method, terminal device, storage medium, and program product |
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