CN107820022A - A kind of photographic method and mobile terminal - Google Patents
A kind of photographic method and mobile terminal Download PDFInfo
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- H—ELECTRICITY
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- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
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Abstract
The invention provides a kind of photographic method and mobile terminal, is related to the communications field, solves the problem of fuzzy, overexposure is easily produced when long exposure mode is taken pictures in the prior art, causes shooting effect bad.This method includes：Obtain a frame length exposure image and N frame normal exposure images for target photographed scene；N frame normal exposure images are subjected to image with long exposure image and synthesize processing, generate target image；Wherein, the exposure time of long exposure image is more than the exposure time of normal exposure image, and N is the integer more than or equal to 1.The solution of the present invention improves the problem of fuzzy shake when long exposure is shot, clear zone overexposure, has obtained the preferable target image of image quality, improves long exposure shooting effect.
Description
Technical field
The present invention relates to the communications field, more particularly to a kind of photographic method and mobile terminal.
Background technology
The time for exposure of generally more than 1 second is referred to as growing exposure.Long exposure is a very interesting shooting hand in photography
Method, the current as silk can be shot by long exposure, light can be clapped and paint photography, splendid starry sky etc. can be clapped.
But taken pictures using long exposure mode, for example, shooting optical track when, the general time for exposure is all long, for example, reach 1s even 10s with
Upper or more long, easily affected by jitter produce obscures, and overexposure occurs in the original brighter easy solarization in region, causes most
Whole shooting effect is bad.
The content of the invention
The embodiment of the present invention provides a kind of photographic method and mobile terminal, is taken pictures with solving long exposure mode in the prior art
The problem of Shi Rongyi generations are fuzzy, overexposure.
In order to solve the above-mentioned technical problem, the present invention is realized in：A kind of photographic method, including：
Obtain a frame length exposure image and N frame normal exposure images for target photographed scene；
The N frames normal exposure image is subjected to image with the long exposure image and synthesizes processing, generates target image；
Wherein, the exposure time of the long exposure image is more than the exposure time of the normal exposure image, N to be more than or
To the integer equal to 1.
In a first aspect, embodiments of the invention additionally provide a kind of mobile terminal, including：
First acquisition module, for obtaining the frame length exposure image and N frame normal exposure images of target photographed scene；
Image processing module, place is synthesized for the N frames normal exposure image to be carried out into image with the long exposure image
Reason, generate target image；
Wherein, the exposure time of the long exposure image is more than the exposure time of the normal exposure image, N to be more than or
To the integer equal to 1.
Second aspect, embodiments of the invention additionally provide a kind of mobile terminal, including processor, memory and are stored in
On the memory and the computer program that can run on the processor, the computer program is by the computing device
Shi Shixian as above photographic method described in any one the step of.
The third aspect, embodiments of the invention additionally provide a kind of computer-readable recording medium, described computer-readable
Computer program is stored with storage medium, the as above bat described in any one is realized when the computer program is executed by processor
The step of according to method.
In embodiments of the present invention, a frame length exposure image and N frame normal exposure figures for target photographed scene is obtained first
Picture；Wherein, the exposure time of long exposure image is more than the exposure time of normal exposure image, and N is the integer more than or equal to 1；
Then N frame normal exposure images are subjected to image with long exposure image and synthesize processing, generate target image.Due to normal exposure figure
The time for exposure of picture is no so long, therefore normal exposure image is affected by jitter smaller, than more visible, and in the absence of long exposure
Overexposure problem caused by being grown in frame due to the time for exposure, by the way that N frame normal exposure images and long exposure image are carried out into image conjunction
Into processing, long the problem of exposing fuzzy shake when shooting, clear zone overexposure is improved, the preferable target image of image quality has been obtained, has carried
Long exposure shooting effect is risen.
Brief description of the drawings
Fig. 1 is one of flow chart of photographic method provided in an embodiment of the present invention；
Fig. 2 is the two of the flow chart of photographic method provided in an embodiment of the present invention；
Fig. 3 is the three of the flow chart of photographic method provided in an embodiment of the present invention；
Fig. 4 is the four of the flow chart of photographic method provided in an embodiment of the present invention；
Fig. 5 is one of structural representation of mobile terminal provided in an embodiment of the present invention；
Fig. 6 is the two of the structural representation of mobile terminal provided in an embodiment of the present invention；
Fig. 7 is the three of the structural representation of mobile terminal provided in an 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 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.
In some embodiments of the invention, there is provided a kind of photographic method, shown in reference picture 1, including：
Step 101, a frame length exposure image and N frame normal exposure images for target photographed scene is obtained.
Wherein, the exposure time of the long exposure image is more than the exposure time of the normal exposure image.Due to normal
The time for exposure of exposure image is no so long, therefore normal exposure image is affected by jitter smaller, than more visible, and is not present
Overexposure problem caused by being grown in long exposure frame due to the time for exposure.
In this step, by obtaining the frame length exposure image and N frame normal exposure images of target photographed scene, Neng Gouji
Long exposure image is corrected in N frame normal exposure images, to improve long exposure shooting effect.
Step 102, the N frames normal exposure image is subjected to image with the long exposure image and synthesizes processing, generate mesh
Logo image.
In this step, processing is synthesized by the way that N frame normal exposure images are carried out into image with long exposure image, improves long exposure
The problem of fuzzy, clear zone overexposure is shaken when photo-beat is taken the photograph, has obtained the preferable target image of image quality.
For example, when dark situation needs to increase the time for exposure or obtain special efficacy picture by long exposure, by obtaining mesh
A frame length exposure image and N frame normal exposure images for photographed scene is marked, then by N frame normal exposure images and long exposure image
Image synthesis processing is carried out, has obtained the preferable target image of image quality.
Wherein, N is the integer more than or equal to 1.N can be pre-set, as N be 3 or 4, that is, obtain 3 frames or 4
The normal exposure image of frame.N can also determine that N takes 4 or 4 when such as shaking more violent according to jitter conditions
Integer above, that is, normal exposure images more than 4 frames or 4 frames is obtained, N takes 1 or 2 when shake is relatively gentle, that is, obtains 1
The normal exposure image of frame or 2 frames.
Certainly, above-mentioned N value is by way of example only, however it is not limited to this.
The photographic method of the embodiment of the present invention, synthesized by the way that N frame normal exposure images are carried out into image with long exposure image
Processing, long the problem of exposing fuzzy shake when shooting, clear zone overexposure is improved, the preferable target image of image quality has been obtained, has been lifted
Long exposure shooting effect.
Optionally, as shown in Fig. 2 above-mentioned steps 102 include：
Step 1021, the N frames normal exposure image is subjected to image synthesis processing, generates intermediate image；Wherein, N is
Integer more than or equal to 2.
Here, when obtaining the normal exposure image of more than 2 frames or 2 frames, the N frame normal exposure figures that will can get first
As carrying out image synthesis processing, obtaining a frame does not have overexposure problem, becomes apparent from, the more preferable intermediate image of image quality, so as to
Based on intermediate image, the improvement for the problems such as fuzzy, clear zone overexposure is shaken to long exposure image is further improved.
For example, N is 4, then 4 frame normal exposure images are subjected to image synthesis processing, a frame intermediate image are generated, based on this
Intermediate image is corrected to long exposure image, it is possible to increase the problems such as fuzzy, clear zone overexposure is shaken to long exposure image changes
Kind effect.
Wherein, it is unlimited that N frame normal exposures image is carried out to the mode of image synthesis processing, any one known side can be used
Formula.
Specifically, above-mentioned steps 1021 include：
Jitter correction algorithm and/or N frames set in advance when being synthesized according to N frames normal exposure image set in advance are just
Noise reduction algorithm during normal exposure image synthesis, N frame normal exposures image is subjected to image synthesis processing, generates intermediate image.
Here, jitter correction algorithm when being synthesized according to N frame normal exposures image, N frame normal exposure images are subjected to figure
As synthesis processing, image definition is improved, so as to the intermediate image become apparent from.And dark situation is clapped in general
Take the photograph Shi Douhui and use higher gain, more noises can be brought to influence basic image quality, when being synthesized according to N frame normal exposures image
Noise reduction algorithm, N frame normal exposures image is subjected to image synthesis processing, the basic image quality of image is improved, so as to obtain
The more preferable intermediate image of image quality.
Step 1022, the intermediate image is subjected to image with the long exposure image and synthesizes processing, generate target image.
Here, processing is synthesized by the way that intermediate image is carried out into image with long exposure image, further increases and exposed to long
The improvement for the problems such as fuzzy, clear zone overexposure is shaken during shooting, has obtained the more preferable target image of image quality.
Wherein, when N be 1, obtain 1 frame normal exposure image when, can be without step 1021, directly by 1 frame normal exposure
Image and long exposure image carry out image and synthesize processing, now, with reference to above it will be appreciated that, because normal exposure image is affected by jitter
It is smaller, than more visible, and in the absence of overexposure problem caused by being grown in long exposure frame due to the time for exposure, therefore by by 1 frame just
Often exposure image carries out image with long exposure image and synthesizes processing, shakes fuzzy, clear zone mistake when equally improving long exposure shooting
The problem of exposure, improve long exposure shooting effect.
Wherein, normal exposure composograph or normal exposure image are subjected to image with long exposure image and synthesize the side handled
Formula is unlimited, can use any one known manner.
Specifically, above-mentioned steps 1022 include：
Jitter correction algorithm, centre set in advance when being synthesized according to intermediate image set in advance and long exposure image
Overexposure restrainable algorithms and/or intermediate image set in advance when image synthesizes with long exposure image close with long exposure image
Into when noise reduction algorithm, the intermediate image is subjected to image with the long exposure image and synthesizes processing, generates target image.
Here, obtaining the composite result of N frame normal exposure images and then closed again on the basis of long exposure image
Into, for region relatively fuzzyyer in long exposure image, trembling when being synthesized according to intermediate image with long exposure image progress image
Dynamic correcting algorithm, jitter correction is carried out with reference to intermediate image when intermediate image synthesizes with long exposure image progress image, enters one
Step, which improves, shakes the problem of fuzzy in long exposure image.
And obtaining the composite result of N frame normal exposure images and then synthesized again on the basis of long exposure image,
For due to exposed more, there is the region of overexposure in long exposure image, when being synthesized according to intermediate image with long exposure image
More degree exposure restrainable algorithms, suppress overexposure with reference to intermediate image when intermediate image synthesizes with long exposure image progress image,
The problem of further improving overexposure in long exposure image.
And obtaining the composite result of N frame normal exposure images and then synthesized again on the basis of long exposure image,
For the region of base luminance in long exposure image, noise reduction algorithm when being synthesized according to intermediate image with long exposure image, in
Between image and long exposure image carry out carrying out noise reduction process with reference to the information in intermediate image when image synthesizes, further increase
The basic image quality of long exposure image.
Now, after intermediate image synthesizes with long exposure image progress image, obtained taking pictures with long exposure mode
Effect (such as optical track effect), at the same shake, overexposure, noise the problems such as be all greatly improved, image quality preferable target figure
Picture.
Wherein, after generating target image, can be preserved target image as final photo.
Optionally, before above-mentioned steps 101, in addition to：
Obtain the jitter parameter of mobile terminal.
Here, by obtaining the jitter parameter of mobile terminal, to be subsequently based on jitter parameter, normal exposure image is determined
Frame number provides support.
Wherein, the jitter parameter of mobile terminal such as may include the acceleration of gyro sensor collection, angular speed.
According to the jitter parameter, the frame number N of the normal exposure image is determined.
Here, according to the jitter parameter of mobile terminal, the frame number N of normal exposure image is determined, ensure that the N frames of acquisition just
The shake that normal exposure image can be eliminated effectively in long exposure image obscures.Wherein, it is more violent in jitter parameter instruction shake
When, the frame number of normal exposure image can be increased, as N takes 4 or more than 4 integer, it is ensured that N frame normal exposure parameters are being shaken
The shake that also can be effectively eliminated in long exposure image when comparing violent obscures.It is relatively gentle in jitter parameter instruction shake
When, the frame number of normal exposure image can be reduced, as N takes 1 or 2, on the premise of ensureing to shake blur effect, is subtracted
Few power consumption.
The photographic method of the embodiment of the present invention supports the long exposure shooting of single camera., can when being shot using single camera
Choosing, as shown in figure 3, above-mentioned steps 101 include：
Step 1011, the frame length exposure image that the camera of mobile terminal is shot to the target photographed scene is obtained.
Here, the frame length exposure image that the camera of mobile terminal is shot to target photographed scene is obtained, to be had
There is the image of long exposure effect.
Wherein, if mobile terminal is provided with a camera, long exposure image is shot by the camera, if mobile whole
End is provided with multiple cameras, then any one camera may be selected and shoot long exposure image.
Step 1012, obtain and shoot what the long exposure image foregoing description camera was shot to the target photographed scene
N1 frame normal exposure images.
Here, before carrying out growing exposure shooting, N1 frame normal exposure images are first shot.Exposure during due to long exposure shooting
It is longer between light time, when shooting dynamic scene, it is possible to target photographed scene changes after long exposure shooting, and in order to
Ensure to have preferable correction effect to long exposure image based on normal exposure image, it is necessary to normal exposure image and long exposure image
Content be consistent, therefore in this step, obtain the N1 frame normal exposures for grow captured by the preceding camera of exposure shooting
Image, it is ensured that normal exposure image that is consistent with the content of long exposure image or being more or less the same can be obtained.
Step 1013, obtain and shoot what the camera after the long exposure image was shot to the target photographed scene
N2 frame normal exposure images.
Here, carrying out growing exposure shooting and then shooting N2 frame normal exposure images.When shooting dynamic scene, have
Target photographed scene it may be changed before long exposure shooting, and in order to ensure based on normal exposure image to long exposure diagram
As having preferable correction effect, it is necessary to which the content of normal exposure image and long exposure image is consistent, therefore in this step, is obtained
Take and carry out growing the N2 frame normal exposure images captured by the rear camera for exposing shooting, it is ensured that can obtain and long exposure image
Content is consistent or the normal exposure image that is more or less the same.
Step 1014, in the N1 frames normal exposure image and the N2 frames normal exposure image, N frames is chosen and are normally exposed
Light image.
Here, in the N1 frame normal exposure images before long expose and the N2 frame normal exposure images after long exposure,
Choose N frame normal exposure images so that N frame normal exposures image can be consistent or differ not with the content of long exposure image
Greatly, so as to ensure that based on N frame normal exposure images improvement the problems such as with shaking fuzzy, clear zone overexposure to long exposure image is imitated
Fruit.
Wherein, N1 and N2 is the integer more than or equal to 1, and N1+N2 >=N.N1, N2 can be preset, also can basis
Jitter conditions determine.
For example, when N1 is 2, N2 1, and N is 2, it is normal to obtain 2 frames for grow captured by the preceding camera of exposure shooting
Exposure image, and grow 1 frame normal exposure image captured by the rear camera of exposure shooting, in this 3 frame normal exposure
Select 2 frame normal exposure images and long exposure image to carry out image in image and synthesize processing, improve long exposure image shake it is fuzzy,
The problem of clear zone overexposure, obtain the preferable target image of image quality.
When N1 is 2, N2 2, and N is 4, the 2 frame normal exposures for grow captured by the preceding camera of exposure shooting are obtained
Image, and grow 2 frame normal exposure images captured by the rear camera of exposure shooting, by this 4 frame normal exposure image
Carry out image with long exposure image and synthesize processing, the problem of improving fuzzy long exposure image shake, clear zone overexposure, obtain image quality compared with
Good target image.
Optionally, above-mentioned steps 1014 include：
In the N1 frames normal exposure image and the N2 frames normal exposure image, obtain and the long exposure image
The N3 frame normal exposure images that picture material matches.
Here, the N1 frame normal exposure images before long expose and the N2 frame normal exposure images after long exposure are passed through
In, obtain the N3 frame normal exposure images to match with the picture material of long exposure image, it is ensured that normal exposure image and length
The content of exposure image is consistent, and is ensured that based on normal exposure image with shaking fuzzy, clear zone to long exposure image
The improvement of the problems such as overexposure.
Wherein, it is unlimited to obtain the mode of the image to match with the picture material of long exposure image, any one can be used
Known manner.The pixel information of long exposure image and other images can be such as compared, is then obtained according to comparison result and is exposed with long
The image that the picture material of light image matches.
Obtain in the N3 frames normal exposure image per the picture quality reference index of frame normal exposure image.
Here, by obtaining per the picture quality reference index of frame normal exposure image in N3 frame normal exposure images, just
The preferable N frames normal exposure image of picture quality is further chosen based on picture quality reference index in follow-up.
Wherein, picture quality reference index such as may include image sharpness index, basic image quality index, picture quality ginseng
It is bigger to examine the value of index, corresponding picture quality is better.
According to the picture quality reference index per frame normal exposure image, in the N3 frames normal exposure image,
Choose N frame normal exposure images；Wherein, the value of the picture quality reference index of the N frames normal exposure image is more than or waited
The value of the image quality parameter index of other images in the N3 frames normal exposure image, N3 are whole more than or equal to N
Number.
Here, by the normal exposure image that matches in the picture material of N3 frames and long exposure image, choosing image
The value of quality references index is larger, i.e. the relatively good N frame normal exposure images of picture quality, further ensure that based on normal
The improvement for the problems such as exposure image to the shake of long exposure image with obscuring, clear zone overexposure.
Certainly, above-mentioned steps 1014 can also obtain directly in N1 frame normal exposure images and N2 frame normal exposure images
The N frame normal exposure images to match with the picture material of long exposure image, or directly in N1 frame normal exposure images and N2
In frame normal exposure image, the preferable normal exposure image of N frame image qualities is obtained.
Particularly, as N1+N2=N, N1+N2 frame normal exposure images and long exposure image directly can be subjected to image conjunction
Into processing.
The photographic method of the embodiment of the present invention, the normal exposure image shot before and after long exposure is incorporated in, finally
Synthesizing a frame both there is long exposure mode to take pictures effect (such as optical track effect), while noise, shake, the problems such as overexposure all
To larger improvement, the preferable image of image quality, long exposure shooting effect is improved.
The photographic method of the embodiment of the present invention also supports the long exposure shooting of multi-cam.When being shot using multi-cam,
Optionally, as shown in figure 4, above-mentioned steps 101 include：
Step 1015, the frame length exposure diagram that the main camera of mobile terminal is shot to the target photographed scene is obtained
Picture.
Here, the frame length exposure image that the main camera of mobile terminal is shot to target photographed scene is obtained, to obtain
Image with long exposure effect.
Wherein, mobile terminal is provided with multiple cameras, any one camera may be selected as main camera, other are taken the photograph
As head is as auxiliary camera.
Step 1016, the X that the mobile terminal in the time of the long exposure image is shot in the main camera is obtained
The M frame normal exposure images that individual auxiliary camera is shot to the target photographed scene.
Here, while main camera grow exposure shooting, X auxiliary camera shoots M frame normal exposure images.
Due to being to capture simultaneously, therefore the image content of the image content of long exposure image and normal exposure image is not in very big partially
Difference.In this step, the M frames for by obtaining main camera grow X auxiliary camera shooting in the time of exposure shooting are normal
Exposure image, normal exposure image that is consistent with the content of long exposure image or being more or less the same is obtained.
Wherein, long time for exposure when main camera grow exposure shooting can be predefined, X within the long time for exposure
Normal take pictures of auxiliary camera is carried out successively.Now, the normal exposure figure that can be shot according to the number X and needs of camera
As frame number M, the frame number that each auxiliary camera needs to shoot is calculated.For example, X is 2, M 4, the long time for exposure is 3 seconds, then exists
2 auxiliary cameras shoot 2 frame normal exposure images successively in the 3 second time of long exposure.
Or main camera can be predefined and carry out growing long time for exposure when exposure is shot, X within the long time for exposure
The normal of auxiliary camera is taken pictures while carried out.For example, X is 2, M 4, the long time for exposure is 3 seconds, then at 3 seconds of long exposure
In, 2 auxiliary cameras shoot 2 frame normal exposure images simultaneously.
Step 1017, in the M frames normal exposure image, N frame normal exposure images are chosen.
Here, in the M frame normal exposure images shot within the long time for exposure, N frame normal exposure images are chosen so that N
Frame normal exposure image can be consistent or be more or less the same with the content of long exposure image, normal based on N frames so as to ensure that
The improvement for the problems such as exposure image to the shake of long exposure image with obscuring, clear zone overexposure.
Wherein, X is the integer more than or equal to 1, and M is the integer more than or equal to N.M can be preset, also can be according to trembling
Emotionally condition determines.
Wherein, in M frame normal exposure images choose N frame normal exposure images mode, can refer to it is above-mentioned in N1 frames just
In normal exposure image and N2 frame normal exposure images, the mode of N frame normal exposure images is chosen.
It is normal such as the N4 frames to match with the picture material of long exposure image can be obtained first in M frame normal exposure images
Exposure image；Then obtain in N4 frame normal exposure images per the picture quality reference index of frame normal exposure image；Further according to
Per the picture quality reference index of frame normal exposure image, in N4 frame normal exposure images, N frame normal exposure images are chosen；
Wherein the value of the picture quality reference index of N frames normal exposure image is more than or equal to other figures in N4 frame normal exposure images
The value of the picture quality reference index of picture, N4 are the integer more than or equal to N.
Certainly, above-mentioned steps 1017 can be also obtained in the image with long exposure image directly in M frame normal exposure images
Hold the N frame normal exposure images to match, or directly in M frame normal exposure images, obtain N frame image qualities preferably just
Normal exposure image.
Particularly, as M=N, M frame normal exposure images directly can be subjected to image with long exposure image and synthesizes processing.
It the photographic method of the embodiment of the present invention, can apply in multi-cam equipment, a frame is shot using main camera
Long exposure image, and within the long time for exposure of long exposure shooting, multiframe normal exposure image is taken using auxiliary camera, most
Synthesizing a frame eventually both there is long exposure mode to take pictures effect (such as optical track effect), while noise, shake, the problems such as overexposure all
It is greatly improved, the preferable image of image quality, improves long exposure shooting effect.
To sum up, the photographic method of the embodiment of the present invention, by the way that N frame normal exposure images and long exposure image are carried out into image
Synthesis is handled, and is improved long the problem of exposing fuzzy shake when shooting, clear zone overexposure, has been obtained the preferable target image of image quality,
Improve long exposure shooting effect.
In some embodiments of the invention, shown in reference picture 5, a kind of mobile terminal 500 is additionally provided.Mobile terminal
500 include：
First acquisition module 501, for obtaining the frame length exposure image and N frame normal exposure figures of target photographed scene
Picture；
Image processing module 502, synthesized for the N frames normal exposure image to be carried out into image with the long exposure image
Processing, generate target image；
Wherein, the exposure time of the long exposure image is more than the exposure time of the normal exposure image, N to be more than or
Integer equal to 1.
The mobile terminal 500 of the embodiment of the present invention, by the way that N frame normal exposure images and long exposure image are carried out into image conjunction
Into processing, long the problem of exposing fuzzy shake when shooting, clear zone overexposure is improved, the preferable target image of image quality has been obtained, has carried
Long exposure shooting effect is risen.
Optionally, as shown in fig. 6, described image processing module 502 includes：
First image procossing submodule 5021, for the N frames normal exposure image to be carried out into image synthesis processing, generation
Intermediate image；
Second image procossing submodule 5022, synthesized for the intermediate image to be carried out into image with the long exposure image
Processing, generate target image；
Wherein, N is the integer more than or equal to 2.
Optionally, described first image processing submodule 5021 is used for：
Jitter correction algorithm and/or N frames set in advance when being synthesized according to N frames normal exposure image set in advance are just
Noise reduction algorithm during normal exposure image synthesis, N frame normal exposures image is subjected to image synthesis processing, generates intermediate image.
Optionally, the second image procossing submodule 5022 is used for：
Jitter correction algorithm, centre set in advance when being synthesized according to intermediate image set in advance and long exposure image
Overexposure restrainable algorithms and/or intermediate image set in advance when image synthesizes with long exposure image close with long exposure image
Into when noise reduction algorithm, the intermediate image is subjected to image with the long exposure image and synthesizes processing, generates target image.
Optionally, first acquisition module 501 includes：
First acquisition submodule 5011, the camera for obtaining mobile terminal the target photographed scene is shot one
Frame length exposure image；
Second acquisition submodule 5012, the long exposure image foregoing description camera is shot to the target for obtaining
The N1 frame normal exposure images of photographed scene shooting；
3rd acquisition submodule 5013, for the camera after obtaining the shooting long exposure image to the target
The N2 frame normal exposure images of photographed scene shooting；
First chooses submodule 5014, in the N1 frames normal exposure image and the N2 frames normal exposure image
In, choose N frame normal exposure images；
Wherein, N1 and N2 is the integer more than or equal to 1, and N1+N2 >=N.
Optionally, the first selection submodule 5014 includes：
First acquisition unit 50141, in the N1 frames normal exposure image and the N2 frames normal exposure image,
Obtain the N3 frame normal exposure images to match with the picture material of the long exposure image；
Second acquisition unit 50142, for obtaining in the N3 frames normal exposure image per the figure of frame normal exposure image
As quality references index；
Unit 50143 is chosen, for the picture quality reference index according to every frame normal exposure image, in the N3
In frame normal exposure image, N frame normal exposure images are chosen；
Wherein, the value of the picture quality reference index of the N frames normal exposure image is being more than or equal to the N3 frames just
The value of the image quality parameter index of other images in normal exposure image, N3 are the integer more than or equal to N.
Optionally, first acquisition module 501 includes：
4th acquisition submodule, the frame that the main camera for obtaining mobile terminal is shot to the target photographed scene
Long exposure image；
5th acquisition submodule, the shifting in the time of the long exposure image is shot in the main camera for obtaining
The M frame normal exposure images that X auxiliary camera of dynamic terminal is shot to the target photographed scene；
Second chooses submodule, in the M frames normal exposure image, choosing N frame normal exposure images；
Wherein, X is the integer more than or equal to 1, and M is the integer more than or equal to N.
Optionally, mobile terminal 500 also includes：
Second acquisition module 503, for obtaining the jitter parameter of mobile terminal；
Determining module 504, for according to the jitter parameter, determining the frame number N of the normal exposure image.
Mobile terminal provided in an embodiment of the present invention can realize that mobile terminal in Fig. 1 to Fig. 4 embodiment of the method is realized
Each process, to avoid repeating, it will not be repeated here.The mobile terminal 500 of the embodiment of the present invention, by by N frame normal exposures
Image carries out image with long exposure image and synthesizes processing, improves long the problem of exposing fuzzy shake when shooting, clear zone overexposure, obtains
The preferable target image of image quality has been arrived, has improved long exposure shooting effect.
Fig. 7 is a kind of hardware architecture diagram for the mobile terminal for realizing each embodiment of the present invention.The mobile terminal 700
Including but not limited to：It is radio frequency unit 701, mixed-media network modules mixed-media 702, audio output unit 703, input block 704, sensor 705, aobvious
Show the parts such as unit 706, user input unit 707, interface unit 708, memory 709, processor 710 and power supply 711.
It will be understood by those skilled in the art that the mobile terminal structure shown in Fig. 7 does not form the restriction to mobile terminal, it is mobile whole
End can be included than illustrating more or less parts, either combine some parts or different parts arrangement.In the present invention
In embodiment, mobile terminal includes but is not limited to mobile phone, tablet personal computer, notebook computer, palm PC, car-mounted terminal, can worn
Wear equipment and pedometer etc..
Wherein, processor 710, for obtaining the frame length exposure image and N frame normal exposure images of target photographed scene；
The N frames normal exposure image is subjected to image with the long exposure image and synthesizes processing, generates target image；Wherein, it is described
The exposure time of long exposure image is more than the exposure time of the normal exposure image, and N is the integer more than or equal to 1.
The mobile terminal 700 synthesizes processing by the way that N frame normal exposure images are carried out into image with long exposure image, improves
Long the problem of exposing fuzzy shake when shooting, clear zone overexposure, the preferable target image of image quality is obtained, improved long expose and shoot
Effect.
Optionally, processor 710 is additionally operable to：The N frames normal exposure image is subjected to image synthesis processing, generation is middle
Image；The intermediate image is subjected to image with the long exposure image and synthesizes processing, generates target image；Wherein, N be more than
Or the integer equal to 2.
Optionally, input block 704 includes camera, and processor 710 is additionally operable to：The camera of mobile terminal is obtained to institute
State a frame length exposure image of target photographed scene shooting；Obtain and shoot the long exposure image foregoing description camera to described
The N1 frame normal exposure images of target photographed scene shooting；The camera is to described after obtaining the shooting long exposure image
The N2 frame normal exposure images of target photographed scene shooting；In the N1 frames normal exposure image and the N2 frames normal exposure figure
As in, N frame normal exposure images are chosen；Wherein, N1 and N2 is the integer more than or equal to 1, and N1+N2 >=N.
Optionally, processor 710 is additionally operable to：In the N1 frames normal exposure image and the N2 frames normal exposure image
In, obtain the N3 frame normal exposure images to match with the picture material of the long exposure image；The N3 frames are obtained normally to expose
Per the picture quality reference index of frame normal exposure image in light image；According to the picture quality per frame normal exposure image
Reference index, in the N3 frames normal exposure image, choose N frame normal exposure images；Wherein, the N frames normal exposure figure
The value of the picture quality reference index of picture is more than or equal to the picture quality of other images in the N3 frames normal exposure image
The value of parameter index, N3 are the integer more than or equal to N.
Optionally, input block 704 includes main camera and X auxiliary camera, and processor 710 is additionally operable to：Obtain and move
The frame length exposure image that the main camera of dynamic terminal is shot to the target photographed scene；Obtain and shot in the main camera
The M frames that X auxiliary camera of the mobile terminal is shot to the target photographed scene in the time of the long exposure image
Normal exposure image；In the M frames normal exposure image, N frame normal exposure images are chosen；Wherein, X is more than or equal to 1
Integer, M is integer more than or equal to N.
Optionally, processor 710 is additionally operable to：The frame length exposure image for obtaining target photographed scene and N frames are normal
Before exposure image, the jitter parameter of mobile terminal is obtained；According to the jitter parameter, the frame of the normal exposure image is determined
Number N.
It should be understood that in the embodiment of the present invention, radio frequency unit 701 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 710；In addition, will be up
Data are sent to base station.Generally, radio frequency unit 701 includes but is not limited to antenna, at least one amplifier, transceiver, coupling
Device, low-noise amplifier, duplexer etc..In addition, radio frequency unit 701 can also by wireless communication system and network and other set
Standby communication.
Mobile terminal has provided the user wireless broadband internet by mixed-media network modules mixed-media 702 and accessed, and such as helps user to receive
Send e-mails, browse webpage and access streaming video etc..
Audio output unit 703 can be receiving by radio frequency unit 701 or mixed-media network modules mixed-media 702 or in memory 709
It is sound that the voice data of storage, which is converted into audio signal and exported,.Moreover, audio output unit 703 can also be provided and moved
The audio output for the specific function correlation that dynamic terminal 700 performs is (for example, call signal receives sound, message sink sound etc.
Deng).Audio output unit 703 includes loudspeaker, buzzer and receiver etc..
Input block 704 is used to receive audio or video signal.Input block 704 can include graphics processor
(Graphics Processing Unit, GPU) 7041 and microphone 7042, graphics processor 7041 is in video acquisition mode
Or the static images or the view data of video obtained in image capture mode by image capture apparatus (such as camera) are carried out
Reason.Picture frame after processing may be displayed on display unit 706.Picture frame after the processing of graphics processor 7041 can be deposited
Storage is transmitted in memory 709 (or other storage mediums) or via radio frequency unit 701 or mixed-media network modules mixed-media 702.Mike
Wind 7042 can receive sound, and can be voice data by such acoustic processing.Voice data after processing can be
The form output of mobile communication base station can be sent to via radio frequency unit 701 by being converted in the case of telephone calling model.
Mobile terminal 700 also includes at least one sensor 705, such as optical sensor, motion sensor and other biographies
Sensor.Specifically, optical sensor includes ambient light sensor and proximity transducer, wherein, ambient light sensor can be according to environment
The light and shade of light adjusts the brightness of display panel 7061, and proximity transducer can close when mobile terminal 700 is moved in one's ear
Display panel 7061 and/or backlight.As one kind of motion sensor, accelerometer sensor can detect in all directions (general
For three axles) size of acceleration, size and the direction of gravity are can detect that when static, available for identification mobile terminal posture (ratio
Such as horizontal/vertical screen switching, dependent game, magnetometer pose calibrating), Vibration identification correlation function (such as pedometer, tap)；Pass
Sensor 705 can also include fingerprint sensor, pressure sensor, iris sensor, molecule sensor, gyroscope, barometer, wet
Meter, thermometer, infrared ray sensor etc. are spent, will not be repeated here.
Display unit 706 is used for the information for showing the information inputted by user or being supplied to user.Display unit 706 can wrap
Display panel 7061 is included, liquid crystal display (Liquid Crystal Display, LCD), Organic Light Emitting Diode can be used
Forms such as (Organic Light-Emitting Diode, OLED) configures display panel 7061.
User input unit 707 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 707 include contact panel 7071 and
Other input equipments 7072.Contact panel 7071, also referred to as touch-screen, collect touch operation of the user on or near it
(for example user uses any suitable objects or annex such as finger, stylus on contact panel 7071 or in contact panel 7071
Neighbouring operation).Contact panel 7071 may include both touch detecting apparatus and touch controller.Wherein, touch detection
Device detects the touch orientation of user, and detects the signal that touch operation is brought, and transmits a signal to touch controller；Touch control
Device processed receives touch information from touch detecting apparatus, and is converted into contact coordinate, then gives processor 710, receiving area
Manage the order that device 710 is sent and performed.It is furthermore, it is possible to more using resistance-type, condenser type, infrared ray and surface acoustic wave etc.
Type realizes contact panel 7071.Except contact panel 7071, user input unit 707 can also include other input equipments
7072.Specifically, other input equipments 7072 can include but is not limited to physical keyboard, function key (such as volume control button,
Switch key etc.), trace ball, mouse, action bars, will not be repeated here.
Further, contact panel 7071 can be covered on display panel 7061, when contact panel 7071 is detected at it
On or near touch operation after, send processor 710 to determine the type of touch event, be followed by subsequent processing device 710 according to touch
The type for touching event provides corresponding visual output on display panel 7061.Although in the figure 7, contact panel 7071 and display
Panel 7061 is the part independent as two to realize the input of mobile terminal and output function, but in some embodiments
In, can be integrated by contact panel 7071 and display panel 7061 and realize input and the output function of mobile terminal, it is specific this
Place does not limit.
Interface unit 708 is the interface that external device (ED) is connected with mobile terminal 700.For example, external device (ED) can include
Line or wireless head-band earphone port, external power source (or battery charger) port, wired or wireless FPDP, storage card end
Mouth, port, audio input/output (I/O) port, video i/o port, earphone end for connecting the device with identification module
Mouthful etc..Interface unit 708 can be used for receive the input (for example, data message, electric power etc.) from external device (ED) and
One or more elements that the input received is transferred in mobile terminal 700 can be used in the He of mobile terminal 700
Data are transmitted between external device (ED).
Memory 709 can be used for storage software program and various data.Memory 709 can mainly include storing program area
And storage data field, wherein, storing program area can storage program area, application program (such as the sound needed at least one function
Sound playing function, image player function etc.) etc.；Storage data field can store according to mobile phone use created data (such as
Voice data, phone directory etc.) etc..In addition, memory 709 can include high-speed random access memory, can also include non-easy
The property lost memory, a for example, at least disk memory, flush memory device or other volatile solid-state parts.
Processor 710 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 709, and call and be stored in storage
Data in device 709, the various functions and processing data of mobile terminal are performed, so as to carry out integral monitoring to mobile terminal.Place
Reason device 710 may include one or more processing units；Preferably, processor 710 can integrate application processor and modulatedemodulate is mediated
Device is managed, wherein, application processor mainly handles operating system, user interface and application program etc., and modem processor is main
Handle radio communication.It is understood that above-mentioned modem processor can not also be integrated into processor 710.
Mobile terminal 700 can also include the power supply 711 (such as battery) to all parts power supply, it is preferred that power supply 711
Can be logically contiguous by power-supply management system and processor 710, so as to realize management charging by power-supply management system, put
The function such as electricity and power managed.
In addition, mobile terminal 700 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 710, memory 709, is stored in
On memory 709 and the computer program that can be run on the processor 710, the computer program are performed by processor 710
Each process of the above-mentioned photographic method embodiments of Shi Shixian, and identical technique effect can be reached, to avoid repeating, here no longer
Repeat.
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 process of above-mentioned photographic method embodiment when being executed by processor, and can reach
Identical technique effect, to avoid repeating, repeat no more here.Wherein, described computer-readable recording medium, deposited Ru read-only
Reservoir (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 (14)
- A kind of 1. photographic method, it is characterised in that including：Obtain a frame length exposure image and N frame normal exposure images for target photographed scene；The N frames normal exposure image is subjected to image with the long exposure image and synthesizes processing, generates target image；Wherein, the exposure time of the long exposure image be more than the normal exposure image exposure time, N be more than or equal to 1 integer.
- 2. according to the method for claim 1, it is characterised in that described by the N frames normal exposure image and the long exposure Light image carry out image synthesis processing, generate target image the step of, including：The N frames normal exposure image is subjected to image synthesis processing, generates intermediate image；The intermediate image is subjected to image with the long exposure image and synthesizes processing, generates target image；Wherein, N is the integer more than or equal to 2.
- 3. according to the method for claim 1, it is characterised in that the frame length exposure image for obtaining target photographed scene The step of with N frame normal exposure images, including：Obtain the frame length exposure image that the camera of mobile terminal is shot to the target photographed scene；Obtain and shoot the N1 frame normal exposures that the long exposure image foregoing description camera is shot to the target photographed scene Image；The N2 frame normal exposures that the camera is shot to the target photographed scene after the acquisition shooting long exposure image Image；In the N1 frames normal exposure image and the N2 frames normal exposure image, N frame normal exposure images are chosen；Wherein, N1 and N2 is the integer more than or equal to 1, and N1+N2 >=N.
- 4. according to the method for claim 3, it is characterised in that described in the N1 frames normal exposure image and the N2 frames In normal exposure image, choose N frame normal exposure images the step of, including：In the N1 frames normal exposure image and the N2 frames normal exposure image, the image with the long exposure image is obtained The N3 frame normal exposure images that content matches；Obtain in the N3 frames normal exposure image per the picture quality reference index of frame normal exposure image；According to the picture quality reference index per frame normal exposure image, in the N3 frames normal exposure image, N is chosen Frame normal exposure image；Wherein, the value of the picture quality reference index of the N frames normal exposure image normally exposes more than or equal to the N3 frames The value of the image quality parameter index of other images in light image, N3 are the integer more than or equal to N.
- 5. according to the method for claim 1, it is characterised in that the frame length exposure image for obtaining target photographed scene The step of with N frame normal exposure images, including：Obtain the frame length exposure image that the main camera of mobile terminal is shot to the target photographed scene；Obtain the X auxiliary camera pair that the mobile terminal in the time of the long exposure image is shot in the main camera The M frame normal exposure images of the target photographed scene shooting；In the M frames normal exposure image, N frame normal exposure images are chosen；Wherein, X is the integer more than or equal to 1, and M is the integer more than or equal to N.
- 6. according to the method for claim 1, it is characterised in that the frame length exposure image for obtaining target photographed scene Before N frame normal exposure images, in addition to：Obtain the jitter parameter of mobile terminal；According to the jitter parameter, the frame number N of the normal exposure image is determined.
- A kind of 7. mobile terminal, it is characterised in that including：First acquisition module, for obtaining the frame length exposure image and N frame normal exposure images of target photographed scene；Image processing module, processing is synthesized for the N frames normal exposure image to be carried out into image with the long exposure image, it is raw Into target image；Wherein, the exposure time of the long exposure image be more than the normal exposure image exposure time, N be more than or equal to 1 integer.
- 8. mobile terminal according to claim 7, it is characterised in that described image processing module includes：First image procossing submodule, for the N frames normal exposure image to be carried out into image synthesis processing, generate middle graph Picture；Second image procossing submodule, processing is synthesized for the intermediate image to be carried out into image with the long exposure image, it is raw Into target image；Wherein, N is the integer more than or equal to 2.
- 9. mobile terminal according to claim 7, it is characterised in that first acquisition module includes：First acquisition submodule, the frame length exposure that the camera for obtaining mobile terminal is shot to the target photographed scene Image；Second acquisition submodule, the long exposure image foregoing description camera is shot to the target photographed scene for obtaining The N1 frame normal exposure images of shooting；3rd acquisition submodule, for the camera after obtaining the shooting long exposure image to the target photographed scene The N2 frame normal exposure images of shooting；First chooses submodule, in the N1 frames normal exposure image and the N2 frames normal exposure image, choosing N frames Normal exposure image；Wherein, N1 and N2 is the integer more than or equal to 1, and N1+N2 >=N.
- 10. mobile terminal according to claim 9, it is characterised in that the first selection submodule includes：First acquisition unit, in the N1 frames normal exposure image and the N2 frames normal exposure image, obtain and institute State the N3 frame normal exposure images that the picture material of long exposure image matches；Second acquisition unit, for obtaining the picture quality reference in the N3 frames normal exposure image per frame normal exposure image Index；Unit is chosen, for according to the picture quality reference index per frame normal exposure image, normally being exposed in the N3 frames In light image, N frame normal exposure images are chosen；Wherein, the value of the picture quality reference index of the N frames normal exposure image normally exposes more than or equal to the N3 frames The value of the image quality parameter index of other images in light image, N3 are the integer more than or equal to N.
- 11. mobile terminal according to claim 7, it is characterised in that first acquisition module includes：4th acquisition submodule, the frame length that the main camera for obtaining mobile terminal is shot to the target photographed scene expose Light image；5th acquisition submodule, it is described mobile whole within the time of the main camera shooting long exposure image for obtaining The M frame normal exposure images that the X auxiliary camera at end is shot to the target photographed scene；Second chooses submodule, in the M frames normal exposure image, choosing N frame normal exposure images；Wherein, X is the integer more than or equal to 1, and M is the integer more than or equal to N.
- 12. mobile terminal according to claim 7, it is characterised in that also include：Second acquisition module, for obtaining the jitter parameter of mobile terminal；Determining module, for according to the jitter parameter, determining the frame number N of the normal exposure image.
- 13. a kind of mobile terminal, it is characterised in that including processor, memory and be stored on the memory and can be in institute The computer program run on processor is stated, the computer program is realized such as claim 1 to 6 during the computing device Any one of photographic method the step of.
- 14. a kind of computer-readable recording medium, it is characterised in that be stored with computer on the computer-readable recording medium Program, the step of the photographic method as any one of claim 1 to 6 is realized when the computer program is executed by processor Suddenly.
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| CN113382162B (en) * | 2021-04-28 | 2022-06-07 | 荣耀终端有限公司 | Video shooting method and electronic equipment |
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Application publication date: 20180320 |