CN104917974A - Long exposure method and camera device - Google Patents
Long exposure method and camera device Download PDFInfo
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- CN104917974A CN104917974A CN201510243322.3A CN201510243322A CN104917974A CN 104917974 A CN104917974 A CN 104917974A CN 201510243322 A CN201510243322 A CN 201510243322A CN 104917974 A CN104917974 A CN 104917974A
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Abstract
The invention relates to a long exposure method and a camera device. The problems that only a standing preview screen is displayed and a display function is single, which are caused by the fact that a photosensitive device is in consistent exposure and no longer outputs an image when the long exposure function of the existing camera device is used to take pictures, are solved. The method provided by the invention comprises the steps that when the camera device is used to take pictures, the current exposure time is monitored in real time, and whether total exposure time is preset is determined; if so, the camera device determines current remaining exposure time according to the monitored current exposure time and the total exposure time, and displays the current remaining exposure time in a countdown manner; and if not, the camera device displays the monitored current exposure time in a positive timing manner. According to the invention, related exposure time is determined and displayed according to the monitored current exposure time; the standing preview screen is displayed; related exposure time is displayed; and a display function of the camera device is increased.
Description
Technical field
The present invention relates to digital imagery and technical field of image processing, particularly a kind of method that exposes of overlength and photographing device.
Background technology
The photographing device such as camera, digital camera of the smart mobile phone of present top grade generally all has the function of overlength exposure, and the function of so-called overlength exposure, utilizes long exposure technique exactly, create mirable time-space image.Utilize overlength exposure technique, moving object track can be made to be linked to be line, to give a kind of visual effect of motion, such as, utilize the mobile phone photograph with overlength exposure function, can realize night bustling with vehicles, and light paints effect etc., but in actual applications, because sensor devices continues to expose no longer output image, can only show out-of-work preview screen, Presentation Function is more single, is easy to cause mobile phone without the illusion of response to user.
In sum, at present when using the overlength exposure function of photographing device to take pictures, because sensor devices continues to expose no longer output image, can only show out-of-work preview screen, Presentation Function is more single.
Summary of the invention
The invention provides method and the photographing device of the exposure of a kind of overlength, in order to solve at present when using the overlength exposure function of photographing device to take pictures, because sensor devices continues exposure, no longer output image, preview screen is also slack, is easy to cause photographing device without the problem of the illusion of response to user.
A kind of method that the embodiment of the present invention provides overlength to expose, the method comprises:
Photographing device is being taken pictures in picture process, Real-Time Monitoring current exposure duration, and judges whether default total exposure duration;
If there is described default total exposure duration, described photographing device, according to the described current exposure duration monitored and described total exposure duration, determines current residue exposure time, and on screen, shows described current residue exposure time with countdown form;
If do not have described default total exposure duration, described photographing device shows the described current exposure duration monitored on screen with reverse countdown form.
Because the embodiment of the present invention is when using the overlength exposure function of photographing device to take pictures, the current exposure duration added according to monitoring is determined and shows the function of relevant exposure duration (namely current residue exposure time or current exposure duration), thus when using the overlength exposure function of photographing device to take pictures, out-of-work preview screen can not only be shown, and relevant exposure time can be shown on screen, and then add the Presentation Function of photographing device.
The embodiment of the present invention provides kind of a photographing device for overlength exposure, and this photographing device comprises:
Monitoring modular, for taking pictures in picture process, Real-Time Monitoring current exposure duration, and judge whether default total exposure duration;
Display module, if for there being described default total exposure duration, according to the described current exposure duration monitored and described total exposure duration, determine current residue exposure time, and shows described current residue exposure time with countdown form on screen; If there is no described default total exposure duration, on screen, show the described current exposure duration monitored with reverse countdown form.
Because the embodiment of the present invention is when using the overlength exposure function of photographing device to take pictures, monitoring modular can Real-Time Monitoring current exposure duration, and judge whether default total exposure duration, and display module can according to the current exposure duration monitored and described default total exposure duration, determine and show current residue exposure time, and when Non-precondition total exposure duration, show the current exposure duration monitored; Thus when using the overlength exposure function of photographing device to take pictures, out-of-work preview screen can not only be shown, and relevant exposure time (namely current residue exposure time or current exposure duration) can be shown on screen, and then add the Presentation Function of photographing device.
Accompanying drawing explanation
The method flow schematic diagram of the overlength exposure that Fig. 1 provides for the embodiment of the present invention;
Fig. 2 manually sets the display packing schematic diagram of default total exposure duration for photographing device that the embodiment of the present invention provides;
The schematic flow sheet that Fig. 3 takes pictures for the total exposure duration that the use that the embodiment of the present invention provides is preset;
Fig. 4 does not set the display packing schematic diagram of default total exposure duration for photographing device that the embodiment of the present invention provides;
During the total exposure duration of the Non-precondition that Fig. 5 provides for the embodiment of the present invention, use the schematic flow sheet that overlength exposure function is taken pictures;
The overall flow schematic diagram of the method for the overlength exposure that Fig. 6 provides for the embodiment of the present invention;
The overall flow schematic diagram of the intelligent overlength exposure mode of a kind of smart mobile phone that Fig. 7 provides for the embodiment of the present invention;
The photographing device structural representation of the overlength exposure that Fig. 8 provides for the embodiment of the present invention.
Embodiment
Embodiment of the present invention photographing device is being taken pictures in picture process, Real-Time Monitoring current exposure duration, and judges whether default total exposure duration; If there is default total exposure duration, photographing device, according to the current exposure duration monitored and total exposure duration, determines current residue exposure time, and on screen, shows current residue exposure time with countdown form; If Non-precondition total exposure duration, photographing device shows the current exposure duration monitored on screen with reverse countdown form.Because the embodiment of the present invention is when using the overlength exposure function of photographing device to take pictures, the current exposure duration added according to monitoring is determined and shows the function of relevant exposure duration (current residue exposure time or current exposure duration), thus when using the overlength exposure function of photographing device to take pictures, out-of-work preview screen can not only be shown, and relevant exposure time can be shown on screen, and then add the Presentation Function of photographing device.
Be described below in conjunction with the preferred embodiment of Figure of description to the application, should be appreciated that preferred embodiment described herein is only for instruction and explanation of the application, and be not used in restriction the application.And when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.
Below in conjunction with Figure of description, the embodiment of the present application is described in further detail.
As shown in Figure 1, the method that a kind of overlength that the embodiment of the present application provides exposes comprises:
Step 101, photographing device is being taken pictures in picture process, Real-Time Monitoring current exposure duration, and judges whether default total exposure duration;
Step 102, if there is default total exposure duration, photographing device, according to the current exposure duration monitored and total exposure duration, determines current residue exposure time, and on screen, shows current residue exposure time with countdown form;
Step 103, if Non-precondition total exposure duration, photographing device shows the current exposure duration monitored on screen with reverse countdown form.
At present, when using the overlength exposure function of photographing device to take pictures, because sensor devices continues exposure, no longer output image, preview screen is also slack, is easy to cause photographing device without the illusion of response to user.And the photographing device that the embodiment of the present invention provides is in each process using overlength exposure mode to take pictures, the duration of real-time monitoring exposure, and determine to want relevant exposure duration (namely current residue exposure time or current exposure duration) according to the exposure time monitored, carry out to point out user's current exposure process, and relevant exposure time, and then out-of-work preview screen can not only be shown, and relevant exposure time can be shown on screen, and then add the Presentation Function of photographing device.
Wherein, photographing device can be the various smart machine with overlength exposure camera function such as the camera of smart mobile phone and digital camera.In introduction below, for convenience of description, photographing device is all described for the camera in smart mobile phone.And the exposure time of monitoring, can be that current exposure is taken pictures in picture process, the exposure time experienced, or according to the exposure photo current required exposure time, the residue exposure time determined.
In enforcement, step 101, photographing device is being taken pictures in picture process, Real-Time Monitoring current exposure duration, and judges whether default total exposure duration.That is, the photographing device that the embodiment of the present invention provides, take pictures in the process of picture in use overlength exposure function, the exposure time of the current overlength exposure of monitoring that can be real-time, and judge whether user has preset the total exposure duration preset, below in the total exposure duration two kinds of situations having default total exposure duration and a Non-precondition, the detailed process that photographing device performs overlength exposure describes in detail.
The first situation, has default total exposure duration.
In enforcement, user can preset default total exposure duration as required, optionally, step 102, if there is default total exposure duration, photographing device, according to the current exposure duration monitored and total exposure duration, determines current residue exposure time, and on screen, shows current residue exposure time with countdown form.
That is, if photographing device has default total exposure duration, then according to the current exposure duration monitored and the total exposure duration of presetting, determine the exposure time of current residual, as the total exposure duration-current duration exposed of the exposure time=default of current residual, then on screen, show current residue exposure time with countdown form; Even there is default total exposure duration, the then exposure time of the display current residual that photographing device is real-time in the process of taking pictures, suppose that the total exposure duration preset is T, then photographing device countdown display from T on screen, be shown to residual time length is 0 always, and the time for exposure successively decreases, until after completion of the exposure, the time for exposure that display is actual, to point out, user's photographing device is current takes pictures.
Wherein, the total exposure duration preset oneself sets before being user.Optionally, before photographing device judges whether default total exposure duration, also comprise: if photographing device is determined to need to arrange default total exposure duration, then according to the longest exposure time that photographing device can be supported, determine the adjustable range of a total exposure duration, and on screen vision-control scope.
That is, photographing device is when determining to need to arrange default total exposure duration, according to the longest exposure time (as 32s) that the sensor devices in photographing device can be supported, determine the condition and range (as between 0s to 32s) of a total exposure duration, and show this adjustable range on the screen of photographing device.
In enforcement, can be each user when using overlength camera function to take pictures, all need to set the total exposure duration preset; Or it is T that user has preset default total exposure duration, then, after when user does not change setting, default total exposure duration T is all adopted to be current total exposure duration of taking pictures; Or user does not set the total exposure duration preset, then, when taking pictures, system can according to the picture of current preview, automatic decision exposure time.
Such as, as shown in Figure 2, for photographing device manually sets the display packing of default total exposure duration, the wherein preview screen of 201 pictures that can expose for photographing device; The triangle of 202 is designated can the adjustment mark of total exposure duration preset of slidable adjustment, and the adjustable extent of the total exposure duration T wherein preset is in maximum of T
maxwith minimum value T
minbetween; 203 is shoot button; 204 3.686 is the exposure time of current residual of photographing device display, 204 can be unit be Millisecond or second level numeral.
In exposure process, whether photographing device real-time judge can have default total exposure duration, optionally, after photographing device judges whether default total exposure duration, also comprise: if there is default total exposure duration, photographing device carries out overlength exposure according to the total exposure duration preset to picture.That is, the total exposure duration preset, that photographing device is carrying out in overlength exposure process, the duration of this exposure in theory, be 5s as supposed that user has set default total exposure duration, then photographing device is when using overlength exposure function to take pictures, and photographing device carries out overlength exposure according to 5s to picture, and namely theoretic total exposure duration is 5s.
In exposure process, photographing device can be real-time detection whether receive sensor devices send long exposure frames, namely, no matter whether preset default total exposure duration, whether photographing device can complete by Real-Time Monitoring exposure process, optionally, after photographing device shows current residue exposure time with countdown form on screen, also comprise: if photographing device determination picture has exposed, then determine the actual exposure duration needed for actual exposure picture, and show the actual exposure duration determined.
In enforcement, when photographing device shows current residue exposure time with countdown form on screen, what meeting was real-time judges whether exposure completes, namely the long exposure frames (all relevant data flow of picture of taking pictures) that sensor devices sends whether is received, if determine, exposure completes, then determine the actual exposure duration needed for exposure image, and show the actual exposure duration determined; That is, after picture has exposed, photographing device can show exposure image and expose the actual exposure duration needed for this picture.
Such as, user is before taking pictures, and having preset the total exposure duration preset is 5s, then in the process of taking pictures, the remaining exposure time of display that photographing device is real-time, is namely the equal of from 5s, the exposure time of the form display current residual of countdown; And when end exposure, due to the time delay etc. of sensor devices, actual exposure actual capabilities are 5.021s, thus, during end exposure, while display exposure image, the exposure time of display reality is 5.021s.
As shown in Figure 3, suppose that user has preset the total exposure duration preset, then the flow process using default total exposure duration to take pictures is as follows, comprising:
Step 301, photographing device brings into use overlength exposure function to take pictures;
Step 302, obtains present system time: namely take pictures the time started;
Step 303, takes pictures when starting, the total exposure duration of the exposure time of current residual=default;
Step 304, in the process of taking pictures exposure, the exposure time of the display current residual that photographing device is real-time, the total exposure duration-current exposure time exposed of the exposure time of current residual=default;
Step 305, photographing device obtains present system time: current time; Current exposure time=current time-the time started exposed;
Step 306, photographing device judges whether that exposure completes, and if so, then performs step 309, otherwise, perform step 307;
Step 307, judges the exposure time >=0 of current residual, if then perform step 304, otherwise performs step 308;
Step 308, photographing device continues exposure, until exposure time=0 of current residual, or the total exposure duration preset has arrived, and now continues to perform step 304, and the exposure time of display current residual is 0;
Step 309, focuses on display the exposure required actual time: actual exposure time, and performs step 310;
Step 310, the overlength exposure process of picture of taking pictures terminates.
The display packing of the total exposure duration that above-mentioned setting is preset and method flow, a kind of feasible mode just enumerated for convenience of description, the overlength exposure method that the embodiment of the present invention provides is not limited in above-mentioned citing, and the display packing of the total exposure duration that other setting being applicable to the inventive method is preset or method flow also belong to thought of the present invention.
The second situation, the total exposure duration of Non-precondition.
Except the situation that above-mentioned user presets default total exposure duration, if user did not preset exposure time before taking pictures, optionally, step 103, if Non-precondition total exposure duration, photographing device shows the current exposure duration monitored on screen with reverse countdown form.
That is, if the total exposure duration of photographing device Non-precondition, then photographing device shows the current exposure duration monitored on screen with reverse countdown form; The even total exposure duration of Non-precondition, then the display current exposure duration that photographing device is real-time in the process of taking pictures, the time for exposure increases progressively, and to point out, user's photographing device is current takes pictures, until after completion of the exposure, the time for exposure that display is actual.
Such as, as shown in Figure 4, for photographing device does not set the display packing of default total exposure duration, the wherein preview screen of 401 pictures that can expose for photographing device; The triangle of 402 is designated can the adjustment mark of total exposure duration preset of slidable adjustment, and now 402 are positioned at minimum value T
minplace; 403 is shoot button; 404 3.686 be photographing device display current exposure duration, 404 can be unit be Millisecond or second level numeral.
In exposure process, whether photographing device real-time judge can have default total exposure duration, optionally, after photographing device judges whether default total exposure duration, also comprise: if Non-precondition total exposure duration, photographing device according to the total exposure duration of the light value determination picture of current photo environment, and carries out overlength exposure according to the total exposure duration determined to picture.
That is, if the total exposure duration of Non-precondition, photographing device determines according to the light value of current photo environment the total exposure duration exposing this picture, and according to the total exposure duration determined, overlength exposure is carried out to picture, namely this total exposure duration determined is that photographing device is carrying out in overlength exposure process, this carries out the duration that exposes in theory, as supposed, the total exposure duration that photographing device determines to expose this picture according to the light value of current photo environment is 5s, then photographing device is when using overlength exposure function to take pictures, photographing device carries out overlength exposure according to 5s to picture, namely theoretic total exposure duration is 5s.
In exposure process, photographing device can be real-time detection whether receive sensor devices send long exposure frames, namely, no matter whether preset default total exposure duration, whether photographing device can complete by Real-Time Monitoring exposure process, optionally, photographing device shows the current exposure duration monitored on screen with reverse countdown form after, also comprise: if photographing device determination picture has exposed, then determine the actual exposure duration needed for actual exposure picture, and show the actual exposure duration determined.
Such as, user is before taking pictures, do not preset default total exposure duration, then in the process of taking pictures, photographing device automatically according to current preview screen of taking pictures (light value of namely current photo environment), can judge that exposure time is 5s, and the current exposure time exposed of real-time display, namely be the equal of from 0s, with the current exposure time exposed of the form increased progressively display; And when end exposure, due to the time delay etc. of sensor devices, actual exposure actual capabilities are 5.021s, thus, during end exposure, while display exposure image, the exposure time of display reality is 5.021s.
As shown in Figure 5, suppose that user does not preset default total exposure duration, then the flow process using overlength exposure function to take pictures is as follows, comprising:
Step 501, photographing device brings into use overlength exposure function to take pictures;
Step 502, obtains present system time: namely take pictures the time started;
Step 503, take pictures start time, current exposure duration=0;
Step 504, in the process of taking pictures exposure, the display current exposure duration that photographing device is real-time, photographing device obtains present system time: current time, current exposure duration=current time-time started;
Step 505, photographing device judges whether that exposure completes, and if so, then performs step 506, otherwise, perform step 504;
Step 506, focuses on display the time for exposure, current exposure duration;
Step 507, the overlength exposure process of picture of taking pictures terminates.
Above-mentioned do not have the display packing and the method flow that set the total exposure duration preset, a kind of feasible mode just enumerated for convenience of description, the overlength exposure method that the embodiment of the present invention provides is not limited in above-mentioned citing, and other the do not have display packing of the default total exposure duration of setting or method flow being applicable to the inventive method also belongs to thought of the present invention.
For the process that the determination picture related in above-mentioned two situations has exposed, optionally, photographing device determination picture has exposed, and comprising: if photographing device gets the complete Frame of needed for exposure image one, then determine that picture has exposed.
In enforcement, photographing device can be real-time judge exposure whether complete, namely the long exposure frames (namely complete Frame) that sensor devices sends whether is received, if photographing device gets complete Frame (the i.e. processor of photographing device inside of needed for exposure image one, receive all data flow relevant to this picture of taking pictures that sensor devices sends), then determine that picture has exposed.
As shown in Figure 6, the overall flow schematic diagram of the method for the overlength exposure provided for the embodiment of the present application, this overall flow comprises:
Step 601, photographing device is being taken pictures in picture process, Real-Time Monitoring current exposure duration, and judges whether default total exposure duration, if so, then performs step 602, otherwise, perform step 605;
Step 602, photographing device, according to the current exposure duration monitored and total exposure duration, is determined current residue exposure time, and is performed step 603;
Step 603, photographing device shows current residue exposure time with countdown form on screen, and performs step 604;
Whether step 604, exposed according to equipment determination picture, if so, then performs step 607, otherwise, perform step 603;
Step 605, photographing device shows the current exposure duration monitored on screen with reverse countdown form;
Whether step 606, exposed according to equipment determination picture, if so, then performs step 607, otherwise, perform step 605;
Step 607, the actual exposure duration needed for photographing device determination actual exposure picture, and show the actual exposure duration determined.
In order to the method that the embodiment of the present application overlength exposes is described more fully, below for a kind of intelligent overlength exposure mode of smart mobile phone, the overall flow of said method is described.This pattern is after entering camera, and a kind of special screne exposal model that can select, feature to expose for a long time.Both manually can set the time for exposure, can intelligent mode be selected again, allow the system automatic evaluation time for exposure.As shown in Figure 7, the overall flow schematic diagram of the intelligent overlength exposure mode of a kind of smart mobile phone provided for the embodiment of the present application.Mainly comprise:
Step 701, starts accurately to take pictures;
Step 702, enters the camera of smart mobile phone;
Step 703, choice for use intelligence overlength exposure mode;
Step 704, when using for the first time, can point out user whether to select exposure time, if so, then performs step 705, otherwise, perform step 710;
Step 705, manually setting exposure time is default total exposure duration T
1, and perform step 706;
Step 706, click is taken pictures, and starts exposure of taking pictures;
Step 707, beginning duration is T
1overlength exposure;
Step 708, mobile phone interface shows residue exposure time in real time;
Step 709, judges whether exposure completes, if so, then performs step 715, otherwise, perform step 708;
Step 710, click is taken pictures, and starts exposure of taking pictures;
Step 711, system evaluation setting exposure time T
2;
Step 712, beginning duration is T
2overlength exposure;
Step 713, mobile phone interface shows exposure time in real time;
Step 714, judges whether exposure completes, if so, then performs step 715, otherwise, perform step 713;
Step 715, shows the picture exposed, and actual exposure duration;
Step 716, the overlength exposure process of picture of taking pictures terminates.
Based on same inventive concept, the photographing device of a kind of overlength exposure is additionally provided in the embodiment of the present invention, the method that the photographing device exposed due to the overlength of Fig. 8 is corresponding is the method for a kind of overlength exposure of the embodiment of the present invention, therefore the enforcement of embodiment of the present invention mobile terminal see the enforcement of method, can repeat part and repeats no more.
As shown in Figure 8, the photographing device of a kind of overlength exposure of the embodiment of the present invention, this photographing device comprises: monitoring modular 801 and display module 802;
Monitoring modular 801, monitoring modular, for taking pictures in picture process, Real-Time Monitoring current exposure duration, and judge whether default total exposure duration;
Display module 802, if for there being default total exposure duration, according to the current exposure duration monitored and total exposure duration, determining current residue exposure time, and on screen, showing current residue exposure time with countdown form; If Non-precondition total exposure duration, on screen, show the current exposure duration monitored with reverse countdown form.
Optionally, display module 802 also for, after judging whether default total exposure duration, if there is default total exposure duration, according to preset total exposure duration overlength exposure is carried out to picture; If Non-precondition total exposure duration, according to the total exposure duration of the light value determination picture of current photo environment, and according to the total exposure duration determined, overlength exposure is carried out to picture.
Optionally, display module 802 also for, before judging whether default total exposure duration, need if determine to arrange default total exposure duration, then according to the longest exposure time that can support, determine the adjustable range of a total exposure duration, and on screen vision-control scope.
Optionally, display module 802 also for, after showing current residue exposure time with countdown form on screen, if determine, picture has exposed, then determine the actual exposure duration needed for actual exposure picture, and shows the actual exposure duration determined; After showing with reverse countdown form the current exposure duration monitored on screen, if determine, picture has exposed, then determine the actual exposure duration needed for actual exposure picture, and shows the actual exposure duration determined.
Optionally, display module 802 specifically for, if get the complete Frame of needed for exposure image one, then determine that picture has exposed.
It can be seen from the above: because the embodiment of the present invention is when using the overlength exposure function of photographing device to take pictures, the current exposure duration added according to monitoring is determined and shows the function of relevant exposure duration (current residue exposure time or current exposure duration), thus when using the overlength exposure function of photographing device to take pictures, out-of-work preview screen can not only be shown, and relevant exposure time can be shown on screen, and then add the Presentation Function of photographing device.
Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt the form of complete hardware embodiment, the completely embodiment of application software embodiment or connected applications software and hardware aspect.And the present invention can adopt in one or more form wherein including the upper computer program implemented of computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) of computer usable program code.
The present invention describes with reference to according to the flow chart of the method for the embodiment of the present invention, equipment (system) and computer program and/or block diagram.Should understand can by the combination of the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or square frame.These computer program instructions can being provided to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, making the instruction performed by the processor of computer or other programmable data processing device produce device for realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be stored in can in the computer-readable memory that works in a specific way of vectoring computer or other programmable data processing device, the instruction making to be stored in this computer-readable memory produces the manufacture comprising command device, and this command device realizes the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make on computer or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computer or other programmable devices is provided for the step realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
Although describe the preferred embodiments of the present invention, those skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the scope of the invention.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (10)
1. a method for overlength exposure, it is characterized in that, the method comprises:
Photographing device is being taken pictures in picture process, Real-Time Monitoring current exposure duration, and judges whether default total exposure duration;
If there is described default total exposure duration, described photographing device, according to the described current exposure duration monitored and described total exposure duration, determines current residue exposure time, and on screen, shows described current residue exposure time with countdown form;
If do not have described default total exposure duration, described photographing device shows the described current exposure duration monitored on screen with reverse countdown form.
2. the method for claim 1, is characterized in that, described photographing device also comprises after judging whether default total exposure duration:
If there is described default total exposure duration, described photographing device carries out overlength exposure according to the total exposure duration preset to described picture;
If do not have described default total exposure duration, described photographing device determines the total exposure duration of described picture according to the light value of current photo environment, and carries out overlength exposure according to the described total exposure duration determined to described picture.
3. the method for claim 1, is characterized in that, described photographing device also comprises before judging whether default total exposure duration:
If described photographing device is determined to need to arrange described default total exposure duration, then according to the longest exposure time that described photographing device can be supported, determine the adjustable range of a total exposure duration, and on screen, show described adjustable range.
4. the method for claim 1, is characterized in that, described photographing device also comprises after showing described current residue exposure time with countdown form on screen:
If described photographing device determines that described picture has exposed, then determine the actual exposure duration described in actual exposure needed for picture, and show the described actual exposure duration determined;
Described photographing device also comprises show the described current exposure duration monitored on screen with reverse countdown form after:
If described photographing device determines that described picture has exposed, then determine the actual exposure duration described in actual exposure needed for picture, and show the described actual exposure duration determined.
5. method as claimed in claim 4, it is characterized in that, described photographing device determines that described picture has exposed, and comprising:
If described photographing device gets the complete Frame of needed for described picture one of exposure, then determine that described picture has exposed.
6. a photographing device for overlength exposure, it is characterized in that, this photographing device comprises:
Monitoring modular, for taking pictures in picture process, Real-Time Monitoring current exposure duration, and judge whether default total exposure duration;
Display module, if for there being described default total exposure duration, according to the described current exposure duration monitored and described total exposure duration, determine current residue exposure time, and shows described current residue exposure time with countdown form on screen; If there is no described default total exposure duration, on screen, show the described current exposure duration monitored with reverse countdown form.
7. photographing device as claimed in claim 6, is characterized in that, described display module also for, after judging whether default total exposure duration, if there is described default total exposure duration, the total exposure duration according to presetting carries out overlength exposure to described picture; If there is no described default total exposure duration, determine the total exposure duration of described picture according to the light value of current photo environment, and according to the described total exposure duration determined, overlength exposure is carried out to described picture.
8. photographing device as claimed in claim 6, it is characterized in that, described display module also for, before judging whether default total exposure duration, need if determine to arrange described default total exposure duration, then according to the longest exposure time that can support, determine the adjustable range of a total exposure duration, and on screen, show described adjustable range.
9. photographing device as claimed in claim 6, it is characterized in that, described display module also for, after showing described current residue exposure time with countdown form on screen, if determine, described picture has exposed, then determine the actual exposure duration described in actual exposure needed for picture, and show the described actual exposure duration determined; After showing with reverse countdown form the described current exposure duration monitored on screen, if determine, described picture has exposed, then determine the actual exposure duration described in actual exposure needed for picture, and shows the described actual exposure duration determined.
10. photographing device as claimed in claim 9, is characterized in that, described display module specifically for, if get the complete Frame of needed for described picture one of exposure, then determine that described picture has exposed.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510243322.3A CN104917974A (en) | 2015-05-13 | 2015-05-13 | Long exposure method and camera device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510243322.3A CN104917974A (en) | 2015-05-13 | 2015-05-13 | Long exposure method and camera device |
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| WO2017096859A1 (en) * | 2015-12-08 | 2017-06-15 | 乐视控股（北京）有限公司 | Photo processing method and apparatus |
| CN109429009A (en) * | 2017-08-31 | 2019-03-05 | 佳能株式会社 | Display control apparatus and its control method and computer-readable medium |
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