CN105635595A - Flash lamp control method, flash lamp control device and mobile terminal - Google Patents
Flash lamp control method, flash lamp control device and mobile terminal Download PDFInfo
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Abstract
The invention provides a flash lamp control method, a flash lamp control device and a mobile terminal. The flash lamp control method comprises following steps: judging whether the current mode of a flash lamp is an automatic flash mode; when judging that the current mode is the automatic flash mode, setting the metering mode of the flash lamp as a target metering mode; calculating the current image brightness value of a target image according to the target metering mode; and determining whether to start the flash lamp according to the calculation result. Through the technical solution of the invention, the flash timing of the flash lamp in the automatic flash mode can be accurately controlled; when the flash lamp flashes automatically, overexposure or over dark of the image resulted from starting the flash of the flash lamp according to mistaken judgment is effectively avoided; the quality of the photographed image is improved; and the user experience is promoted.
Description
Technical field
The present invention relates to electronic consumer technology field, in particular to the control method of a kind of flash lamp, the control device of a kind of flash lamp and a kind of mobile terminal.
Background technology
Flash lamp is a kind of light filling equipment, makes shooting picture become apparent from becoming clear under the low light level, strengthens light exposure, and light filling whether suitable directly decision shooting picture whether overexposure or excessively dark, camera flash-light flashes to be divided into and forbids flashing, forcing to flash, automatically flash totally three kinds, at present, automatically main flow of flashing way is to scout ambient brightness for camera, judge whether to flash according to current environment brightness, if being switched on flash lamp lower than threshold value to flash, shot subject is carried out light filling, traditional Exposure Metering that automatically flashes is mainly intermediate weights light-metering (scope that namely picture center accounts for picture 12% carries out light-metering), as illustrated in fig. 1 and 2, picture is divided into 6 �� 6 regions, wherein, x represents non-zero weight, Fig. 1 is normal light black main body simulated scenario, adopt intermediate weights Exposure Metering, namely the brightness of black main body in the middle of only gathering, and whole picture brightness reality is higher under this scene, but the final intrinsic brilliance of the picture calculated is very dark, cause unlatching flash lamp when flash lamp is automatically flash pattern, so that the picture overexposure finally obtained, Fig. 2 is half-light white main body simulated scenario, adopt intermediate weights Exposure Metering, namely the brightness of middle white main body is only gathered, and the actual ratio of whole picture brightness is dark under this scene, but the final intrinsic brilliance of the picture calculated is very bright, causing that flash lamp is not turned on flash lamp when being and automatically flash pattern, the picture finally obtained is excessively dark, false judgment occurs.
To sum up, this flash lamp flashes Exposure Metering excessively simply automatically, usually runs counter to desire, and when normal light black main body, low light level white main body, the former main body partially secretly causes that brightness is too low, the latter's main body is excessively bright and causes that brightness is too high, thus causing erroneous judgement; And under some occasion such as backlight, when namely shot subject brightness is lower than background luminance, the brightness value calculated is lower than flashing threshold value, thus occurring flashing, when not needing light filling, flash lamp is opened on the contrary, causes whole picture overexposure, affects subjective experience.
Therefore, open flash lamp because erroneous judgement occurs when how to avoid flash lamp automatically to flash and flash and cause picture overexposure or excessively dark, and then improve the quality shooting picture, become technical problem urgently to be resolved hurrily.
Summary of the invention
The present invention is based on the problems referred to above, propose a kind of new technical scheme, can control to be in the flashing opportunity of flash lamp of pattern of automatically flashing exactly, it is effectively prevented from opening flash lamp because erroneous judgement occurs when flash lamp flashes automatically to flash and cause picture overexposure or excessively dark, to improve the quality of shooting picture, thus promoting Consumer's Experience. In view of this, an aspect of of the present present invention proposes the control method of a kind of flash lamp, including: whether the current operation mode judging flash lamp is pattern of automatically flashing; Be judged to described automatically flash pattern time, the metering mode of described flash lamp is set to target metering mode; Calculate the current picture brightness value of target picture according to described target metering mode, and determine whether to open described flash lamp according to result of calculation.
In this technical scheme, when judge the current operation mode of flash lamp as automatically flash pattern time, the metering mode of flash lamp is arranged automatically (switching) for target metering mode (such as, average metering mode), then target picture is calculated (such as according to target metering mode, whole shooting picture) current picture brightness value, and determine whether to open flash lamp according to result of calculation, so, can control to be in the flashing opportunity of flash lamp of pattern of automatically flashing exactly, it is effectively prevented from opening flash lamp because erroneous judgement occurs when flash lamp flashes automatically to flash and cause picture overexposure or excessively dark, such as, prevent normal light black main body, half-light white main body, backlight, under the occasions such as backlight, flash lamp performs faulty operation and causes picture overexposure or cross the generation of dim phenomenon, realize accurately flashing, to improve the quality of shooting picture, thus promoting Consumer's Experience.
In technique scheme, preferably, the described current picture brightness value of described target picture is calculated according to described target metering mode, and determine whether to open described flash lamp according to described result of calculation, specifically include: judge that whether described current picture brightness value is more than or equal to predetermined luminance threshold value; Determine whether to open described flash lamp according to judged result.
In technique scheme, it is preferable that determine whether to open described flash lamp according to described judged result, specifically include: when described judged result be described current picture brightness value less than described predetermined luminance threshold value time, open described flash lamp; And described control method also includes: determine the running parameter of described flash lamp according to described current picture brightness value, to take pictures.
In this technical scheme, the current picture brightness value of target picture is calculated according to target metering mode, and when judging this current picture brightness value more than or equal to predetermined luminance threshold value, open flash lamp, and the running parameter of flash lamp is determined according to current picture brightness value, to take pictures, so, can control to be in the flashing opportunity of flash lamp of pattern of automatically flashing exactly, and the running parameter combining setting realizes accurately flashing and shooting, improve the quality of shooting picture, thus promoting Consumer's Experience.
In technique scheme, it is preferable that also include: when judge described flash lamp current operation mode be not described automatically flash pattern time, the metering mode of described flash lamp is set to common metering mode, to take pictures.
In this technical scheme, when the current operation mode judging flash lamp is not automatically flash pattern, such as, forbid that the pattern of flashing or pressure are flashed pattern, now, automatically use common metering mode to complete the shooting of picture, namely be configured operating without user, namely achieve and fast shoot setting without flash lamp, more intelligent, at the same time it can also be saving power resources, further increase Consumer's Experience.
In technique scheme, it is preferable that described target metering mode includes: average metering pattern, described common metering mode includes: intermediate weights metering mode; Described running parameter includes: flashes electric current and flashes the time.
In this technical scheme, target metering mode is including but not limited to average metering pattern, namely the average luminance of whole picture is measured, it is to say, average metering pattern not only considers the shooting body brightness, also calculate the brightness of background, namely the environment of overall picture is considered, the brightness value of so calculated picture is more accurately true, common metering mode including but not limited to intermediate weights metering mode, running parameter including but not limited to: flash electric current and flashing the time; So, when flash lamp is in and automatically flashes mode of operation, adopt average metering pattern, otherwise adopt intermediate weights test pattern, namely by the environment residing for whole picture (such as, main body brightness and background luminance) COMPREHENSIVE CALCULATING and accurate control to the multiple running parameter of flash lamp, realize flash lamp accurately flash and shoot, it is effectively prevented from opening flash lamp because erroneous judgement occurs when flash lamp flashes automatically to flash and cause picture overexposure or excessively dark, and then improves and shoot picture geological measuring.
Another aspect of the present invention proposes the control device of a kind of flash lamp, including: whether judge module, be pattern of automatically flashing for judging the current operation mode of flash lamp; Module is set, for be judged to described automatically flash pattern time, the metering mode of described flash lamp is set to target metering mode; Computing module, for calculating the current picture brightness value of target picture according to described target metering mode; Control module, for determining whether to open described flash lamp according to result of calculation.
In this technical scheme, when judge the current operation mode of flash lamp as automatically flash pattern time, the metering mode of flash lamp is arranged automatically (switching) for target metering mode (such as, average metering mode), then target picture is calculated (such as according to target metering mode, whole shooting picture) current picture brightness value, and determine whether to open flash lamp according to result of calculation, so, can control to be in the flashing opportunity of flash lamp of pattern of automatically flashing exactly, it is effectively prevented from opening flash lamp because erroneous judgement occurs when flash lamp flashes automatically to flash and cause picture overexposure or excessively dark, such as, prevent normal light black main body, half-light white main body, backlight, under the occasions such as backlight, flash lamp performs faulty operation and causes picture overexposure or cross the generation of dim phenomenon, realize accurately flashing, to improve the quality of shooting picture, thus promoting Consumer's Experience.
In technique scheme, it is preferable that described control module specifically for: judge that whether described current picture brightness value is more than or equal to predetermined luminance threshold value; Determine whether to open described flash lamp according to judged result.
In technique scheme, it is preferable that described control module is specifically additionally operable to: when described judged result be described current picture brightness value less than described predetermined luminance threshold value time, control open described flash lamp; And described computing module is additionally operable to: determine the running parameter of described flash lamp according to described current picture brightness value, to take pictures.
In this technical scheme, the current picture brightness value of target picture is calculated according to target metering mode, and when judging this current picture brightness value more than or equal to predetermined luminance threshold value, open flash lamp, and the running parameter of flash lamp is determined according to current picture brightness value, to take pictures, so, can control to be in the flashing opportunity of flash lamp of pattern of automatically flashing exactly, and the running parameter combining setting realizes accurately flashing and shooting, improve the quality of shooting picture, thus promoting Consumer's Experience.
In technique scheme, it is preferable that the described module that arranges is additionally operable to: when judge described flash lamp current operation mode be not described automatically flash pattern time, the metering mode of described flash lamp is set to common metering mode, to take pictures.
In this technical scheme, when the current operation mode judging flash lamp is not automatically flash pattern, such as, forbid that the pattern of flashing or pressure are flashed pattern, now, automatically use common metering mode to complete the shooting of picture, namely be configured operating without user, namely achieve and fast shoot setting without flash lamp, more intelligent, at the same time it can also be saving power resources, further increase Consumer's Experience.
In technique scheme, it is preferable that described target metering mode includes: average metering pattern, described common metering mode includes: intermediate weights metering mode; Described running parameter includes: flashes electric current and flashes the time.
In this technical scheme, target metering mode is including but not limited to average metering pattern, namely the average luminance of whole picture is measured, it is to say, average metering pattern not only considers the shooting body brightness, also calculate the brightness of background, namely the environment of overall picture is considered, the brightness value of so calculated picture is more accurately true, common metering mode including but not limited to intermediate weights metering mode, running parameter including but not limited to: flash electric current and flashing the time; So, when flash lamp is in and automatically flashes mode of operation, adopt average metering pattern, otherwise adopt intermediate weights test pattern, namely by the environment residing for whole picture (such as, main body brightness and background luminance) COMPREHENSIVE CALCULATING and accurate control to the multiple running parameter of flash lamp, realize flash lamp accurately flash and shoot, it is effectively prevented from opening flash lamp because erroneous judgement occurs when flash lamp flashes automatically to flash and cause picture overexposure or excessively dark, and then improves and shoot picture geological measuring.
Another aspect of the invention proposes a kind of mobile terminal, including: the control device of the flash lamp according to any one of technique scheme, to control the flash lamp operation in described mobile terminal.
In this technical scheme, owing to mobile terminal includes the control device of the flash lamp any one of technique scheme, and control the flash lamp operation in mobile terminal by the device that controls of the flash lamp any one of technique scheme, therefore, mobile terminal has all beneficial effects controlling device of the flash lamp any one of technique scheme, repeats no more here.
Pass through technical scheme, can control to be in the flashing opportunity of flash lamp of pattern of automatically flashing exactly, it is effectively prevented from opening flash lamp because erroneous judgement occurs when flash lamp flashes automatically to flash and cause picture overexposure or excessively dark, such as, prevent under the occasions such as normal light black main body, half-light white main body, backlight, backlight, flash lamp performs faulty operation and causes picture overexposure or cross the generation of dim phenomenon, realize accurately flashing, to improve the quality of shooting picture, thus promoting Consumer's Experience.
Accompanying drawing explanation
Fig. 1 illustrates that the normal light black main body in correlation technique adopts the schematic diagram of the simulated scenario of intermediate weights Exposure Metering;
Fig. 2 illustrates that the half-light white main body in correlation technique adopts the schematic diagram of the simulated scenario of intermediate weights Exposure Metering;
Fig. 3 illustrates the schematic flow sheet of the control method of flash lamp according to an embodiment of the invention;
Fig. 4 illustrates the block diagram controlling device of flash lamp according to an embodiment of the invention;
Fig. 5 illustrates the block diagram of mobile terminal according to an embodiment of the invention;
Fig. 6 illustrates the schematic flow sheet of the control method of flash lamp according to another embodiment of the invention;
Fig. 7 illustrates that normal light black main body according to an embodiment of the invention adopts the schematic diagram of the simulated scenario of average metering mode;
Fig. 8 illustrates that half-light white main body according to an embodiment of the invention adopts the schematic diagram of the simulated scenario of average metering mode.
Detailed description of the invention
In order to the above-mentioned purpose of the present invention, feature and advantage can be more clearly understood that, below in conjunction with the drawings and specific embodiments, the present invention is further described in detail. It should be noted that when not conflicting, embodiments herein and the feature in embodiment can be mutually combined.
Elaborate a lot of detail in the following description so that fully understanding the present invention; but; the present invention can also adopt other to be different from other modes described here to implement, and therefore, protection scope of the present invention is by the restriction of following public specific embodiment.
Fig. 3 illustrates the schematic flow sheet of the control method of flash lamp according to an embodiment of the invention.
As it is shown on figure 3, the control method of the flash lamp of one embodiment of the present of invention, including: step 302, it is judged that whether the current operation mode of flash lamp is pattern of automatically flashing; Step 304, be judged to described automatically flash pattern time, the metering mode of described flash lamp is set to target metering mode; Step 306, calculates the current picture brightness value of target picture, and determines whether to open described flash lamp according to result of calculation according to described target metering mode.
In this technical scheme, when judge the current operation mode of flash lamp as automatically flash pattern time, the metering mode of flash lamp is arranged automatically (switching) for target metering mode (such as, average metering mode), then target picture is calculated (such as according to target metering mode, whole shooting picture) current picture brightness value, and determine whether to open flash lamp according to result of calculation, so, can control to be in the flashing opportunity of flash lamp of pattern of automatically flashing exactly, it is effectively prevented from opening flash lamp because erroneous judgement occurs when flash lamp flashes automatically to flash and cause picture overexposure or excessively dark, such as, prevent normal light black main body, half-light white main body, backlight, under the occasions such as backlight, flash lamp performs faulty operation and causes picture overexposure or cross the generation of dim phenomenon, realize accurately flashing, to improve the quality of shooting picture, thus promoting Consumer's Experience.
In technique scheme, it is preferable that described step 306 specifically includes: judge that whether described current picture brightness value is more than or equal to predetermined luminance threshold value; Determine whether to open described flash lamp according to judged result.
In technique scheme, it is preferable that determine whether to open described flash lamp according to described judged result, specifically include: when described judged result be described current picture brightness value less than described predetermined luminance threshold value time, open described flash lamp; And described control method also includes: determine the running parameter of described flash lamp according to described current picture brightness value, to take pictures.
In this technical scheme, the current picture brightness value of target picture is calculated according to target metering mode, and when judging this current picture brightness value more than or equal to predetermined luminance threshold value, open flash lamp, and the running parameter of flash lamp is determined according to current picture brightness value, to take pictures, so, can control to be in the flashing opportunity of flash lamp of pattern of automatically flashing exactly, and the running parameter combining setting realizes accurately flashing and shooting, improve the quality of shooting picture, thus promoting Consumer's Experience.
In technique scheme, it is preferable that also include: when judge described flash lamp current operation mode be not described automatically flash pattern time, the metering mode of described flash lamp is set to common metering mode, to take pictures.
In this technical scheme, when the current operation mode judging flash lamp is not automatically flash pattern, such as, forbid that the pattern of flashing or pressure are flashed pattern, now, automatically use common metering mode to complete the shooting of picture, namely be configured operating without user, namely achieve and fast shoot setting without flash lamp, more intelligent, at the same time it can also be saving power resources, further increase Consumer's Experience.
In technique scheme, it is preferable that described target metering mode includes: average metering pattern, described common metering mode includes: intermediate weights metering mode; Described running parameter includes: flashes electric current and flashes the time.
In this technical scheme, target metering mode is including but not limited to average metering pattern, that is, the average luminance of whole picture is measured, say, that, average metering pattern not only considers the shooting body brightness, also calculating the brightness of background, namely consider the environment of overall picture, the brightness value of so calculated picture is more accurately true, common metering mode including but not limited to intermediate weights metering mode, running parameter including but not limited to: flash electric current and flashing the time; So, when flash lamp is in and automatically flashes mode of operation, adopt average metering pattern, otherwise adopt intermediate weights test pattern, namely by the environment residing for whole picture (such as, main body brightness and background luminance) COMPREHENSIVE CALCULATING and accurate control to the multiple running parameter of flash lamp, realize flash lamp accurately flash and shoot, it is effectively prevented from opening flash lamp because erroneous judgement occurs when flash lamp flashes automatically to flash and cause picture overexposure or excessively dark, and then improves and shoot picture geological measuring.
Fig. 4 illustrates the block diagram controlling device of flash lamp according to an embodiment of the invention.
As shown in Figure 4, the control device 400 of the flash lamp of one embodiment of the present of invention,
Whether judge module 402, be pattern of automatically flashing for judging the current operation mode of flash lamp; Module 404 is set, for be judged to described automatically flash pattern time, the metering mode of described flash lamp is set to target metering mode; Computing module 406, for calculating the current picture brightness value of target picture according to described target metering mode; Control module 408, for determining whether to open described flash lamp according to result of calculation.
In this technical scheme, when judge the current operation mode of flash lamp as automatically flash pattern time, the metering mode of flash lamp is arranged automatically (switching) for target metering mode (such as, average metering mode), then target picture is calculated (such as according to target metering mode, whole shooting picture) current picture brightness value, and determine whether to open flash lamp according to result of calculation, so, can control to be in the flashing opportunity of flash lamp of pattern of automatically flashing exactly, it is effectively prevented from opening flash lamp because erroneous judgement occurs when flash lamp flashes automatically to flash and cause picture overexposure or excessively dark, such as, prevent normal light black main body, half-light white main body, backlight, under the occasions such as backlight, flash lamp performs faulty operation and causes picture overexposure or cross the generation of dim phenomenon, realize accurately flashing, to improve the quality of shooting picture, thus promoting Consumer's Experience.
In technique scheme, it is preferable that described control module 408 specifically for: judge that whether described current picture brightness value is more than or equal to predetermined luminance threshold value; Determine whether to open described flash lamp according to judged result.
In technique scheme, it is preferable that described control module 408 is specifically additionally operable to: when described judged result be described current picture brightness value less than described predetermined luminance threshold value time, control open described flash lamp; And described computing module 406 is additionally operable to: determine the running parameter of described flash lamp according to described current picture brightness value, to take pictures.
In this technical scheme, the current picture brightness value of target picture is calculated according to target metering mode, and when judging this current picture brightness value more than or equal to predetermined luminance threshold value, open flash lamp, and the running parameter of flash lamp is determined according to current picture brightness value, to take pictures, so, can control to be in the flashing opportunity of flash lamp of pattern of automatically flashing exactly, and the running parameter combining setting realizes accurately flashing and shooting, improve the quality of shooting picture, thus promoting Consumer's Experience.
In technique scheme, it is preferable that the described module 404 that arranges is additionally operable to: when judge described flash lamp current operation mode be not described automatically flash pattern time, the metering mode of described flash lamp is set to common metering mode, to take pictures.
In this technical scheme, when the current operation mode judging flash lamp is not automatically flash pattern, such as, forbid that the pattern of flashing or pressure are flashed pattern, now, automatically use common metering mode to complete the shooting of picture, namely be configured operating without user, namely achieve and fast shoot setting without flash lamp, more intelligent, at the same time it can also be saving power resources, further increase Consumer's Experience.
In technique scheme, it is preferable that described target metering mode includes: average metering pattern, described common metering mode includes: intermediate weights metering mode; Described running parameter includes: flashes electric current and flashes the time.
In this technical scheme, target metering mode is including but not limited to average metering pattern, that is, the average luminance of whole picture is measured, say, that, average metering pattern not only considers the shooting body brightness, also calculating the brightness of background, namely consider the environment of overall picture, the brightness value of so calculated picture is more accurately true, common metering mode including but not limited to intermediate weights metering mode, running parameter including but not limited to: flash electric current and flashing the time; So, when flash lamp is in and automatically flashes mode of operation, adopt average metering pattern, otherwise adopt intermediate weights test pattern, namely by the environment residing for whole picture (such as, main body brightness and background luminance) COMPREHENSIVE CALCULATING and accurate control to the multiple running parameter of flash lamp, realize flash lamp accurately flash and shoot, it is effectively prevented from opening flash lamp because erroneous judgement occurs when flash lamp flashes automatically to flash and cause picture overexposure or excessively dark, and then improves and shoot picture geological measuring.
Fig. 5 illustrates the block diagram of mobile terminal 500 according to an embodiment of the invention.
As it is shown in figure 5, the mobile terminal 500 of one embodiment of the present of invention, including: the control device 400 of the flash lamp according to any one of technique scheme, to control the flash lamp operation in described mobile terminal 500.
In this technical scheme, owing to mobile terminal 500 includes the control device 400 of the flash lamp any one of technique scheme, and control the flash lamp operation in mobile terminal 500 by the device 400 that controls of the flash lamp any one of technique scheme, therefore, mobile terminal 500 has all beneficial effects controlling device 400 of the flash lamp any one of technique scheme, repeats no more here.
Below in conjunction with Fig. 6 to Fig. 8, specific embodiments of the invention are illustrated.
Fig. 6 illustrates the schematic flow sheet of the control method of flash lamp according to another embodiment of the invention.
Fig. 7 illustrates that normal light black main body according to an embodiment of the invention adopts the schematic diagram of the simulated scenario of average metering mode.
Fig. 8 illustrates that half-light white main body according to an embodiment of the invention adopts the schematic diagram of the simulated scenario of average metering mode.
As shown in Figure 6, the flow process of the control method of flash lamp according to another embodiment of the invention, including:
(1) flash lamp is divided into Three models: forbid flashing, forcing to flash, automatically flash, it is judged that whether flash lamp opens pattern of automatically flashing.
(2) if Flash Mode is pattern of automatically flashing, then change Exposure Metering (metering mode), automatically switch to average metering mode (target metering mode), be still otherwise original common Exposure Metering: intermediate weights Exposure Metering.
(3) average metering mode is used to calculate the brightness (current picture brightness value) of whole picture (target picture), it may be judged whether to exceed the threshold value (predetermined luminance threshold value) of setting. below figure, Fig. 7 and Fig. 8 is average metering mode, picture is divided into 6X6 region by every kind of Exposure Metering, wherein x is non-zero weight, wherein, Fig. 7 is the simulated scenario that normal light black main body adopts average metering mode, not only only considered black main body and also calculate the brightness of background, the picture luminance so calculated is truer, flash lamp will not be opened under this brightness, picture luminance is normal, Fig. 8 is the simulated scenario that half-light white main body adopts average metering mode, consider the environment residing for whole picture, the final picture luminance calculated is true and reliable, picture is partially dark, unlatching flash lamp flashes.
(4) when judging not less than the threshold value set, flash lamp is opened, automatically to flash.
(5) flash electric current according to current picture brightness calculation and flash the time (running parameter).
(6) automatic exposure is carried out, to complete to take pictures.
(7) judging whether Flash Mode changes, carrying out the judgment mechanism of next round if changing, if not changing, terminating.
Technical scheme relates to a kind of flash lamp and automatically flashes anti-overexposure or cross dark Exposure Metering, namely use based on picture average metering mode when opening and automatically flashing function, calculate picture overall brightness, prevent the occasion flash lamies such as normal light black main body, half-light white main body, backlight, backlight from performing faulty operation, cause that should open flash lamp makes picture excessively dark without unlatching on the one hand, cause this should not open flash lamp and open so that picture is excessively bright on the other hand, promote the Consumer's Experience that automatically flashes, improve shooting picture quality.
Technical scheme is described in detail, it is possible to control is in flashing opportunity of the flash lamp of pattern of automatically flashing exactly, it is achieved accurately flash, to improve the quality of shooting picture, thus promoting Consumer's Experience above in association with accompanying drawing.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations. All within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention.
Claims (11)
1. the control method of a flash lamp, it is characterised in that including:
Whether the current operation mode judging flash lamp is pattern of automatically flashing;
Be judged to described automatically flash pattern time, the metering mode of described flash lamp is set to target metering mode;
Calculate the current picture brightness value of target picture according to described target metering mode, and determine whether to open described flash lamp according to result of calculation.
2. the control method of flash lamp according to claim 1, it is characterised in that calculate the described current picture brightness value of described target picture according to described target metering mode, and determine whether to open described flash lamp according to described result of calculation, specifically include:
Judge that whether described current picture brightness value is more than or equal to predetermined luminance threshold value;
Determine whether to open described flash lamp according to judged result.
3. the control method of flash lamp according to claim 2, it is characterised in that determine whether to open described flash lamp according to described judged result, specifically include:
When described judged result be described current picture brightness value less than described predetermined luminance threshold value time, open described flash lamp; And
Described control method also includes:
The running parameter of described flash lamp is determined, to take pictures according to described current picture brightness value.
4. the control method of flash lamp according to any one of claim 1 to 3, it is characterised in that also include:
When judge described flash lamp current operation mode be not described automatically flash pattern time, the metering mode of described flash lamp is set to common metering mode, to take pictures.
5. the control method of flash lamp according to claim 4, it is characterised in that
Described target metering mode includes: average metering pattern, and described common metering mode includes: intermediate weights metering mode;
Described running parameter includes: flashes electric current and flashes the time.
6. the control device of a flash lamp, it is characterised in that including:
Whether judge module, be pattern of automatically flashing for judging the current operation mode of flash lamp;
Module is set, for be judged to described automatically flash pattern time, the metering mode of described flash lamp is set to target metering mode;
Computing module, for calculating the current picture brightness value of target picture according to described target metering mode;
Control module, for determining whether to open described flash lamp according to result of calculation.
7. the control device of flash lamp according to claim 6, it is characterised in that described control module specifically for:
Judge that whether described current picture brightness value is more than or equal to predetermined luminance threshold value;
Determine whether to open described flash lamp according to judged result.
8. the control device of flash lamp according to claim 7, it is characterised in that described control module is specifically additionally operable to:
When described judged result be described current picture brightness value less than described predetermined luminance threshold value time, control open described flash lamp; And
Described computing module is additionally operable to:
The running parameter of described flash lamp is determined, to take pictures according to described current picture brightness value.
9. the control device of the flash lamp according to any one of claim 6 to 8, it is characterised in that the described module that arranges is additionally operable to:
When judge described flash lamp current operation mode be not described automatically flash pattern time, the metering mode of described flash lamp is set to common metering mode, to take pictures.
10. the control device of flash lamp according to claim 9, it is characterised in that
Described target metering mode includes: average metering pattern, and described common metering mode includes: intermediate weights metering mode;
Described running parameter includes: flashes electric current and flashes the time.
11. a mobile terminal, it is characterised in that including: the control device of the flash lamp as according to any one of claim 6 to 10, to control the flash lamp operation in described mobile terminal.
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| CN106713780A (en) * | 2017-01-16 | 2017-05-24 | 维沃移动通信有限公司 | Control method for flash lamp and mobile terminal |
| CN107105148A (en) * | 2017-06-26 | 2017-08-29 | 上海传英信息技术有限公司 | Use the camera system and photographic method of combination flash modules |
| CN109889731A (en) * | 2019-02-22 | 2019-06-14 | 生迪智慧科技有限公司 | The determination method, apparatus and storage medium of acquisition parameters |
| CN110891145A (en) * | 2019-12-02 | 2020-03-17 | 联想(北京)有限公司 | Method for obtaining image by photographing and electronic equipment |
| CN113643578A (en) * | 2021-08-27 | 2021-11-12 | 深圳可视科技有限公司 | Intelligent control method and system for teaching intelligent blackboard |
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| CN110891145A (en) * | 2019-12-02 | 2020-03-17 | 联想(北京)有限公司 | Method for obtaining image by photographing and electronic equipment |
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