CN105554412B - A kind of photographic method based on screen light filling, device and mobile terminal - Google Patents

A kind of photographic method based on screen light filling, device and mobile terminal Download PDF

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Publication number
CN105554412B
CN105554412B CN201610086334.4A CN201610086334A CN105554412B CN 105554412 B CN105554412 B CN 105554412B CN 201610086334 A CN201610086334 A CN 201610086334A CN 105554412 B CN105554412 B CN 105554412B
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CN
China
Prior art keywords
light filling
brightness
screen
camera
pattern
Prior art date
Application number
CN201610086334.4A
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Chinese (zh)
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CN105554412A (en
Inventor
吴磊
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广东欧珀移动通信有限公司
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Priority to CN201610086334.4A priority Critical patent/CN105554412B/en
Priority claimed from CN201810091096.5A external-priority patent/CN108111773B/en
Publication of CN105554412A publication Critical patent/CN105554412A/en
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Publication of CN105554412B publication Critical patent/CN105554412B/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/222Studio circuitry; Studio devices; Studio equipment ; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, TV cameras, video cameras, camcorders, webcams, camera modules for embedding in other devices, e.g. mobile phones, computers or vehicles
    • H04N5/225Television cameras ; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, camcorders, webcams, camera modules specially adapted for being embedded in other devices, e.g. mobile phones, computers or vehicles
    • H04N5/235Circuitry or methods for compensating for variation in the brightness of the object, e.g. based on electric image signals provided by an electronic image sensor
    • H04N5/2354Circuitry or methods for compensating for variation in the brightness of the object, e.g. based on electric image signals provided by an electronic image sensor by influencing the scene brightness using illuminating means
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/222Studio circuitry; Studio devices; Studio equipment ; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, TV cameras, video cameras, camcorders, webcams, camera modules for embedding in other devices, e.g. mobile phones, computers or vehicles
    • H04N5/225Television cameras ; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, camcorders, webcams, camera modules specially adapted for being embedded in other devices, e.g. mobile phones, computers or vehicles
    • H04N5/232Devices for controlling television cameras, e.g. remote control ; Control of cameras comprising an electronic image sensor
    • H04N5/23241Control of camera operation in relation to power supply
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/222Studio circuitry; Studio devices; Studio equipment ; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, TV cameras, video cameras, camcorders, webcams, camera modules for embedding in other devices, e.g. mobile phones, computers or vehicles
    • H04N5/225Television cameras ; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, camcorders, webcams, camera modules specially adapted for being embedded in other devices, e.g. mobile phones, computers or vehicles
    • H04N5/235Circuitry or methods for compensating for variation in the brightness of the object, e.g. based on electric image signals provided by an electronic image sensor
    • H04N5/2353Circuitry or methods for compensating for variation in the brightness of the object, e.g. based on electric image signals provided by an electronic image sensor by influencing the exposure time, e.g. shutter

Abstract

The embodiment of the invention discloses a kind of photographic method based on screen light filling, device and mobile terminal.Wherein, method includes:When monitoring that camera is in opening, the light filling pattern of screen is determined according to battery temperature, wherein, the light filling pattern includes close pattern, normal light filling pattern and low-light level light filling pattern, and the camera is that front camera or current location are in the positive rotatable camera of mobile terminal;The screen is controlled to carry out light filling according to identified light filling pattern;Control the camera to catch image, and generate photo.The embodiment of the present invention enriches the light filling pattern of the existing scheme of taking pictures based on screen light filling by using above-mentioned technical proposal, and the light filling pattern of screen is determined according to battery temperature, is suitable for the shooting environmental of different temperatures, lifts Consumer's Experience.

Description

A kind of photographic method based on screen light filling, device and mobile terminal

Technical field

The present embodiments relate to shooting technology field, more particularly to a kind of photographic method based on screen light filling, device And mobile terminal.

Background technology

At present, camera has become the standard configuration of big multi-mobile-terminal, with the continuous lifting of camera performance, moves Camera function in dynamic terminal is also stronger and stronger, to like the user to take pictures to bring facility.

Many mobile terminal users like carrying out self-timer using the front camera on mobile terminal, but existing mobile whole The front camera at end is all not equipped with light compensating lamp, the self-timer in night or light poor environment, can because under-exposed and It is difficult to obtain preferable self-timer effect.

In order to obtain suitable exposure in user's self-timer, a kind of existing scheme is by lighting screen (control display Screen shows suitable brightness) taken pictures to coordinate front camera to carry out light filling.However, there are the following problems for the program:Light filling mould Formula is single, can not adapt to the shooting environmental of different temperatures.When user uses mobile terminal self-timer at low ambient temperatures, for movement The electrolyte that terminal provides the lithium battery of electric power easily solidifies, and causes battery electric quantity rapid decrease, discharge capability also can accordingly subtract It is weak, if now needing screen intensity to heighten certain brightness (normal light filling brightness) using existing screen light filling scheme, electricity Stream can increase suddenly, cause the drastically loss of electricity, not only influence the stand-by time of mobile terminal, and lithium battery can be made Into certain infringement.In addition, mobile terminal can be shot according to exposure parameter corresponding with normal light filling brightness, due to lithium Battery discharge reduced capability, the electric power provided be likely to can not support screen normal light filling brightness is transferred in brightness, so meeting The under-exposure of photo is caused, influences shooting effect.

The content of the invention

The purpose of the embodiment of the present invention is to provide a kind of photographic method based on screen light filling, device and mobile terminal, with Enrich the light filling pattern of the existing scheme of taking pictures based on screen light filling.

In a first aspect, the embodiments of the invention provide a kind of photographic method based on screen light filling, including:

When monitoring that camera is in opening, the light filling pattern of screen is determined according to battery temperature, wherein, the benefit Optical mode includes close pattern, normal light filling pattern and low-light level light filling pattern, and the camera is front camera or current Position is in the positive rotatable camera of mobile terminal;

The screen is controlled to carry out light filling according to identified light filling pattern;

Control the camera to catch image, and generate photo.

Second aspect, the embodiments of the invention provide a kind of camera arrangement based on screen light filling, including:

Light filling mode decision module, for when monitoring that camera is in opening, determining to shield according to battery temperature The light filling pattern of curtain, wherein, the light filling pattern includes close pattern, normal light filling pattern and low-light level light filling pattern, described Camera is that front camera or current location are in the positive rotatable camera of mobile terminal;

Supplementary lighting module, for controlling the screen to carry out light filling according to identified light filling pattern;

Photo generation module, for controlling the camera to catch image, and generate photo.

The third aspect, the embodiments of the invention provide a kind of mobile terminal, the mobile terminal is integrated with implementation of the present invention The camera arrangement based on screen light filling in example.

The scheme of taking pictures based on screen light filling provided in the embodiment of the present invention, when monitoring front camera or present bit Put in the positive rotatable camera of mobile terminal be in opening when, the light filling pattern of screen is determined according to battery temperature For one in close pattern, normal light filling pattern and low-light level light filling pattern, then the screen is controlled according to identified benefit Optical mode carries out light filling, then controls the camera to catch image, and generates photo.By using above-mentioned technical proposal, enrich The light filling pattern of the existing scheme of taking pictures based on screen light filling, and the light filling pattern of screen is determined according to battery temperature, The shooting environmental of different temperatures is suitable for, lifts Consumer's Experience.

Brief description of the drawings

Fig. 1 is a kind of schematic flow sheet for photographic method based on screen light filling that the embodiment of the present invention one provides;

Fig. 2 is a kind of schematic flow sheet for photographic method based on screen light filling that the embodiment of the present invention two provides;

Fig. 3 is a kind of schematic flow sheet for photographic method based on screen light filling that the embodiment of the present invention three provides;

Fig. 4 is a kind of schematic flow sheet for photographic method based on screen light filling that the embodiment of the present invention four provides;

Fig. 5 is a kind of flow signal for photographic method for being preferably based on screen light filling that the embodiment of the present invention five provides Figure;

Fig. 6 is a kind of structured flowchart for camera arrangement based on screen light filling that the embodiment of the present invention six provides.

Embodiment

Further illustrate technical scheme below in conjunction with the accompanying drawings and by embodiment.It is appreciated that It is that specific embodiment described herein is used only for explaining the present invention, rather than limitation of the invention.Further need exist for illustrating , for the ease of description, part related to the present invention rather than entire infrastructure are illustrate only in accompanying drawing.

It should be mentioned that some exemplary embodiments are described as before exemplary embodiment is discussed in greater detail The processing described as flow chart or method.Although each step is described as the processing of order, many of which by flow chart Step can be implemented concurrently, concomitantly or simultaneously.In addition, the order of each step can be rearranged.When its operation The processing can be terminated during completion, it is also possible to the additional step being not included in accompanying drawing.The processing can be with Corresponding to method, function, code, subroutine, subprogram etc..

Embodiment one

A kind of schematic flow sheet for photographic method based on screen light filling that Fig. 1 provides for the embodiment of the present invention one, the party Method can be performed by the camera arrangement based on screen light filling, and wherein the device can be realized by software and/or hardware, can typically integrate In the terminal.As shown in figure 1, this method includes:

Step 101, when monitoring that camera is in opening, the light filling pattern of screen is determined according to battery temperature.

Wherein, the light filling pattern includes close pattern, normal light filling pattern and low-light level light filling pattern, the camera The positive rotatable camera of mobile terminal is in for front camera or current location.

Exemplary, the mobile terminal in the present embodiment concretely match somebody with somebody by mobile phone, tablet personal computer and digital camera etc. It is equipped with the terminal device of display screen.

The front camera or rotatable camera of existing mobile terminal are not equipped with light compensating lamp.In order in night or light Suitable exposure is obtained in the poor environment of line, during user's self-timer, a kind of existing scheme is to show to close by control display screen Suitable brightness coordinates front camera or current location is in the positive rotatable camera of mobile terminal and carries out light filling and takes pictures. But program light filling pattern is single, when the temperature of the surroundings is low, the supplying cell temperature of mobile terminal also can be very low, now battery Electricity rapid decrease, discharge capability accordingly weaken, and battery is difficult to support screen and shows normal light filling brightness.

So the scheme of the embodiment of the present invention is a variety of different light filling patterns according to temperature setting, work as mobile terminal When detecting that camera is in opening, light filling pattern can be determined according to the temperature of battery.

Existing mobile terminal is designed with battery temperature detection unit (being generally located on Mobile terminal main board), can do To real-time detection battery temperature.

The light filling pattern set in the embodiment of the present invention includes close pattern, normal light filling pattern and low-light level light filling mould Formula.Close pattern be when battery temperature is low arrive certain limit when, then be not turned on screen light filling, with reduce battery of mobile terminal discharge The change of electric current, battery of mobile terminal is protected, increase the cell phone standby time;Normal light filling pattern is when battery temperature is in normal In operating temperature range, i.e., environment temperature is in normal range (NR), then by existing light filling scheme, determines to shield according to ambient brightness The brightness of curtain;Low-light level light filling pattern be when the subnormal battery temperature of battery temperature, it is but not low when arriving certain limit, with The brightness of screen carries out light filling during less than normal light filling, can reduce the electric quantity consumption of battery, ensures stand-by time, can pass through increase Time for exposure carries out strengthening light filling intensity, can equally obtain the pretty good photo of shooting effect.

Step 102, control screen carry out light filling according to identified light filling pattern.

It is exemplary, when according to battery temperature determine close pattern, normal light filling pattern and low-light level light filling pattern this three After one kind in kind of light filling pattern, mobile terminal can be on suitable opportunity (when such as screen light filling button is triggered or camera button quilt During triggering) control the screen of mobile terminal to control the brightness of screen according to identified light filling pattern.

Exemplary, when the battery temperature is less than the first preset temperature threshold value, the light filling pattern for determining screen is pass Close pattern.

Accordingly, the screen is controlled to carry out light filling according to identified light filling pattern, it may include:Screen is controlled according to original Beginning brightness shown, wherein, original brightness is brightness of the screen before camera unlatching.

First preset temperature threshold value is a relatively low temperature value, if being less than this temperature, the battery of mobile terminal exists Light filling curent change can be very big when taking pictures, and may damage battery, it is also possible to which the electric power that battery is provided at this temperature is The screen light filling of mobile terminal can not be supported.For example, the first preset temperature threshold value can be set as -5 degree.Due to different mobile terminal Hardware configuration is different, used battery performance also difference, also, requirement of the different user to quality of taking pictures is also different, So the first preset temperature threshold value can be adjusted according to practical situations, for its specific value the present embodiment not Make specific limit.

So if battery temperature is less than the first preset temperature threshold value, control screen is according to screen before camera unlatching Brightness is shown, also is understood as closing light filling function, to protect battery and extend the stand-by time of mobile terminal.

Exemplary, when battery temperature is higher than the second preset temperature threshold value, determine that the light filling pattern of screen is mended to be normal Optical mode.

Accordingly, screen is controlled to carry out light filling according to identified light filling pattern, it may include:Obtain environmental light brightness;Root The first brightness is determined according to environmental light brightness, wherein, the first brightness is higher than original brightness, and original brightness is that screen is opened in camera Preceding brightness;Control screen is shown with the first brightness.

Second preset temperature threshold value can be to determine a threshold value of normal battery operation temperature.For example, 5 degree can be set to, When battery temperature is more than 5 degree, then battery temperature is normal operating temperature.Light filling can be carried out by normal light filling brightness.Now The electrolyte that the lithium battery of electric power is provided for mobile terminal does not have the possibility of solidification then, and battery discharge is very capable, can carry out The light filling of high brightness.Likewise, what the second preset temperature threshold value can be adjusted according to practical situations, it is specific for its Value the present embodiment is not especially limited.

First brightness carries out brightness during light filling for the screen of mobile terminal.First brightness thus when environmental light brightness It is determined that.Environmental light brightness is lower, then the first brightness is higher, and the first brightness is higher than original brightness, to reach the purpose of light filling.

Mobile terminal can be by setting the devices such as ambient light sensor on mobile terminals in real time to environmental light brightness Change perceived, so as to determine the value of the first brightness.

Step 103, control camera catch image, and generate photo.

Exemplary, when control screen carries out light filling according to different light filling patterns, mobile terminal can be during light filling Camera is controlled to catch the image of exposure, the image of seizure is by the series of processes such as the coding of mobile terminal generation photo.

The photographic method based on screen light filling that the embodiment of the present invention one provides, when monitoring that camera is in opening When, determine that the light filling pattern of screen is in close pattern, normal light filling pattern and low-light level light filling pattern according to battery temperature One, then control the screen to carry out light filling according to identified light filling pattern, then control the camera to catch image, and it is raw Into photo.By using above-mentioned technical proposal, the light filling pattern of the existing scheme of taking pictures based on screen light filling, and root are enriched The light filling pattern of screen is determined according to battery temperature, is suitable for the shooting environmental of different temperatures, lifts Consumer's Experience.

Embodiment two

A kind of schematic flow sheet for photographic method based on screen light filling that Fig. 2 provides for the embodiment of the present invention two, this reality Example is applied based on above-described embodiment, low-light level light filling pattern is optimized.

Accordingly, the method for the present embodiment comprises the following steps:

Step 201, when monitoring that camera is in opening, if battery temperature is in the first preset temperature threshold value and Between two preset temperature threshold values, the light filling pattern for determining screen is low-light level light filling pattern.

When battery temperature is between the first preset temperature threshold value and the second preset temperature threshold value, illustrate that battery temperature is low In normal working temperature but without low to the degree that can not carry out screen light filling, low-light level light filling pattern can be now used.

Step 202, control screen shown with the second brightness, wherein, the second brightness is higher than original brightness and less than the One brightness, original brightness are brightness of the screen before camera unlatching, and the first brightness is corresponding with normal light filling pattern bright Degree.

The brightness of screen after the second brightness is used under low-light level light filling pattern as light filling.Second brightness is bright less than first Degree, if so battery discharge current of mobile terminal control screen when being shown with the second brightness with before camera is opened Discharge current compared to difference be not especially big, the battery of mobile terminal can bear this change, and also will not be to battery Damage.

Screen intensity corresponding to low-light level light filling pattern is less than brightness corresponding to normal light filling pattern, but is higher than close pattern Corresponding brightness, it is possible to reach certain light filling effect.Exemplary, for taking pictures when lifting low-light level light filling pattern Quality, the modes such as prolonging exposure time can be used to compensate.

Step 203, control camera catch image, and generate photo.

The present embodiment two optimizes low-light level light filling pattern on the basis of above-described embodiment, by the benefit under low temperature Optical mode carries out further rational setting, makes scheme more perfect.

Embodiment three

Fig. 3 is a kind of schematic flow sheet for photographic method based on screen light filling that the embodiment of the present invention three provides.This reality Apply example further to optimize low-light level light filling pattern based on above-described embodiment, in the present embodiment, by step " control Screen is shown with the second brightness " it is optimized for:Luminance factor is determined according to battery temperature;According to the first brightness and luminance factor Determine the second brightness;Control screen is shown with the second brightness.

Further, step " control camera catches image, and generates photo " is optimized for:Determined according to the second brightness Time for exposure length;Compare the magnitude relationship of time for exposure length and limiting safe exposure time, and controlled according to comparative result Camera catches image, and generates photo.

Accordingly, the method for the present embodiment comprises the following steps:

Step 301, when monitoring that camera is in opening, if battery temperature is in the first preset temperature threshold value and Between two preset temperature threshold values, the light filling pattern for determining screen is low-light level light filling pattern.

Step 302, luminance factor determined according to battery temperature.

Luminance factor is the display brightness for setting the screen when light filling pattern is low-light level light filling pattern.According to The display brightness of screen when luminance factor and the first brightness can obtain the second brightness, i.e. low-light level light filling.Different battery temperature Degree can correspond to different luminance factors.When battery temperature is between the first preset temperature threshold value and the second preset temperature threshold value When, when battery temperature is lower, corresponding luminance factor is smaller.Exemplary, can be by different battery temperatures and corresponding brightness Coefficient is established corresponding relation list and stored.When battery temperature reaches a certain numerical value, corresponding luminance factor can quilt automatically Recall, then mobile terminal is according to the display brightness of screen when current brightness factor and the first brilliance control low-light level light filling.

Step 303, the second brightness determined according to the first brightness and luminance factor.

, can be according to now when the ambient brightness that mobile terminal measures according to ambient light sensor determines the first brightness after Battery temperature selectes luminance factor, and the product of the value of the first brightness and luminance factor is the second brightness value.Such as battery temperature For -5 degree, corresponding luminance factor is 50%, if corresponding normal light filling brightness is that the first brightness is A, is mended suitable for low-light level Second brightness of optical mode is 50%A.

Step 304, control screen are shown with the second brightness.

Step 305, time for exposure length determined according to the second brightness.

Relation exemplary, that the second brightness and time for exposure length can be inversely proportional.When the value of the second brightness is lower, reach It is longer to the time for exposure required for good exposure effect.It is exemplary, with it is above-mentioned by different battery temperatures and correspondingly Luminance factor to establish corresponding relation list the same, the second brightness and time for exposure can be established corresponding to relation list, just In determining time for exposure length according to the second brightness.

Step 306, compare time for exposure length and the magnitude relationship of limiting safe exposure time, and according to comparative result control Camera processed catches image, and generates photo.

One most basic requirement of photo is that picture is clear.A clear photograph is photographed to hand-held, it is most simple Single mode is that shutter is enough fast, but the too fast relative situation that under-exposure may can occur of shutter.Limiting safe exposes Duration is exactly the exposure time of most slow and picture clear (not influenceed by hand earthquake situations condition) the shutter shot.

There is its corresponding limiting safe exposure time, generally fixed value per money camera.So designer is in reality Border needs to consider limiting safe exposure time when applying.If time for exposure length corresponding to the second brightness is more than the limiting safe Exposure time, then the time for exposure length that should be shot using limiting safe exposure time as this.

The photographic method based on screen light filling that the embodiment of the present invention three provides, during by reducing light filling the brightness of screen come The change of mobile terminal supplying cell electric current is reduced, while ensures photographic quality by increasing time for exposure length, it is especially suitable Taken pictures during for low temperature using screen light filling, the experience of taking pictures of user when effectively lifting low temperature environment.The embodiment of the present invention In low-light level light filling pattern for existing screen light filling scheme, the shooting quality of photo can be ensured, reason is, Existing screen light filling scheme can't be detected to battery temperature, and the light filling brightness of screen is determined according only to environmental light brightness, And exposure time is determined according to the light filling brightness, when low temperature is shot, because the discharge capability of battery weakens, screen is difficult to reach To identified light filling brightness, and exposure time determines that, so can cause under-exposure, photo is bright with the light filling brightness Spend relatively low, in some instances it may even be possible to which most of scene is black, can not meet that user requires, poor user experience;And the embodiment of the present invention exists While reducing screen light filling brightness, exposure time is added, can be ensured while protecting battery and ensureing stand-by time The shooting quality of photo, effectively lifts Consumer's Experience.

Example IV

Fig. 4 is a kind of schematic flow sheet for photographic method based on screen light filling that the embodiment of the present invention four provides.This reality Apply example to optimize low-light level light filling pattern based on above-described embodiment, in the present embodiment, by step " when comparing exposure Between length and limiting safe exposure time magnitude relationship, and control camera to catch image according to comparative result, and generate photograph Piece " is optimized for:When comparative result be time for exposure length be less than or equal to limiting safe exposure time when, control camera according to Time for exposure length catches image, and generates photo;When comparative result is that time for exposure length is more than limiting safe exposure time When, calculate the quotient of time for exposure length divided by limiting safe exposure time and round up, obtain exposure frequency N;Control is taken the photograph Picture head opens image photomontages according to N images of limiting safe exposure time continuous capturing according to N.

Further, will be optimized for " according to N image photomontages ":By every N number of corresponding same position in N images The brightness value of pixel be overlapped processing, and generate photo.

Accordingly, the method for the present embodiment comprises the following steps:

Step 401, when monitoring that camera is in opening, if battery temperature is in the first preset temperature threshold value and Between two preset temperature threshold values, the light filling pattern for determining screen is low-light level light filling pattern.

Step 402, luminance factor determined according to battery temperature.

Step 403, the second brightness determined according to the first brightness and luminance factor.

Step 404, control screen are shown with the second brightness.

Step 405, time for exposure length determined according to the second brightness.

Step 406, compare time for exposure length and the magnitude relationship of limiting safe exposure time, if time for exposure length is small In or equal to limiting safe exposure time, then step 407 is performed;Otherwise step 408 and step 409 are performed.

Step 407, control camera catch image according to time for exposure length, and generate photo.

Be not in cause photo because hand shakes if time for exposure length is less than or equal to limiting safe exposure time The problem of smudgy, then image directly can be caught by single exposure, generate photo.For example, the limiting safe of camera Exposure time is 0.05 second, if time for exposure length is 0.03 second, directly can disposably catch image, generate photo.

Step 408, the quotient for calculating time for exposure length divided by limiting safe exposure time simultaneously round up, and are exposed Times N.

If time for exposure length is more than limiting safe exposure time, should be shot using limiting safe exposure time as this Time for exposure length.But if disposably catching image with limiting safe exposure time, generation photo can because under-exposed and Quality defect.In the present embodiment, using multiexposure, multiple exposure and it can carry out making up above-mentioned deficiency by the way of image synthesis.When calculating exposure Between the quotient of length divided by limiting safe exposure time, obtain numerical value of N, then needed for low-light level light filling models capture to picture rich in detail Exposure time is N times of limiting safe exposure time, and the times N that expose can be determined by this multiple, expose every time when it is a length of Limiting safe exposure time.And rounded up when this multiple N is not integer, so that exposure total duration long enough, so as to obtain Clear photograph.

Exemplary, the limiting safe exposure time of camera is 0.05 second, during exposure needed for low-light level light filling pattern Between length be 0.12 second, time for exposure length is 2.4 times of camera limiting safe exposure time, then is exposed according to limiting safe Duration goes exposure 3 times, utilizes this 3 times image photomontages captured.

Step 409, control camera are schemed according to the limiting safe exposure time continuous capturing N images, and according to N As photomontage.

Preferably, the brightness value of the pixel of every N number of corresponding same position in the N images can be overlapped place Reason, and generate photo.

By N images of limiting safe exposure time continuous capturing, the brightness of the pixel of N image same positions is folded Add processing, i.e., be overlapped the brightness that n times expose, so that it may obtain the time for exposure with being determined in this programme according to the second brightness Exposure effect corresponding to length.

The photographic method based on screen light filling that the embodiment of the present invention four provides, it is contemplated that the limiting safe exposure of camera The problem of duration, multiple exposure is used when the time for exposure, length was long, then shone by the way of exposure brightness superposition The generation of piece, increase the scope of application of low temperature light filling pattern.

Embodiment five

Fig. 5 is a kind of flow signal for photographic method for being preferably based on screen light filling that the embodiment of the present invention five provides Figure, this method comprise the following steps:

Step 501, when monitoring that camera is in opening, obtain battery temperature.

Step 502, judge temperature range residing for battery temperature, if being in first interval, perform step 503;If it is in Second interval, then perform step 505;If being in 3rd interval, step 508 is performed.

Wherein, first interval is less than the first preset temperature threshold value;Second interval is higher than the second preset temperature threshold value;The Three sections are between the first preset temperature threshold value and the second preset temperature threshold value.

When battery temperature is in first interval, then temperature is too low, closes screen light filling and takes pictures, does not now then go emphasis to close Quality of taking pictures is noted, but to protect battery by reducing the change of electric current as far as possible, and prevents the drastically decline of battery electric quantity;When When battery temperature is in second interval, light filling can be carried out according to appropriate brightness corresponding to normal light filling when taking pictures, now temperature is not Battery discharge can be influenceed, battery is enough support screen and carries out light filling with the appropriate brightness, can obtain preferable shooting effect;Work as electricity When pond temperature is in 3rd interval, light filling brightness can be reduced and carry out light filling.

Step 503, the light filling pattern for determining screen are close pattern.

Step 504, the original brightness for keeping screen, when monitoring that camera button is triggered, control camera catches image, raw Into photo.

Without the light filling of screen when now camera is taken pictures, and it is to maintain the original brightness of screen.If now ambient light Brightness is relatively low, then effect of taking pictures is less desirable, and photo is dark, but closing screen light filling can effectively protect battery of mobile phone.Example Property, when detecting that environmental light brightness is relatively low, user can be prompted, such as " current environment is dark and can not support to shield Whether curtain light filling, PLSCONFM take pictures ", if user is very high to effect requirements of taking pictures, it may be selected not take pictures temporarily, close camera.

Step 505, the light filling pattern for determining screen are normal light filling pattern.

Step 506, when monitoring that camera button is triggered, obtain environmental light brightness and simultaneously determine that first is bright according to environmental light brightness Degree.

Environmental light brightness determines the light filling brightness of screen when taking pictures.For example, environmental light brightness is lower, then screen light filling Brightness it is higher, therebetween in inverse relation.

Step 507, control screen are shown that control camera catches image, and generates photo with the first brightness.

Step 508, the light filling pattern for determining screen are low-light level light filling pattern.

Step 509, luminance factor determined according to battery temperature.

Step 510, when monitoring that camera button is triggered, it is simultaneously true according to acquired environmental light brightness to obtain environmental light brightness Fixed first brightness.

Step 511, the second brightness determined according to the first brightness and luminance factor.

Step 512, control screen are shown with the second brightness.

Step 513, time for exposure length determined according to the second brightness.

Step 514, judge whether time for exposure length is less than or equal to limiting safe exposure time, if so, then performing step Rapid 515;Otherwise, step 516 is performed.

Step 515, control camera catch image according to time for exposure length, and generate photo.

Step 516, the quotient for calculating time for exposure length divided by limiting safe exposure time simultaneously round up, and are exposed Times N.

After quotient rounds up, when total time for exposure of n times exposure is greater than the exposure needed for corresponding second brightness Between length, can be obtained when taking pictures preferably exposure.If rounding downwards, can take pictures quality because of under-exposure influence.

Step 517, control camera are according to N images of limiting safe exposure time continuous capturing.

Step 518, the brightness value of the pixel of every N number of corresponding same position in N images is overlapped processing, and given birth to Into photo.

The embodiment of the present invention five provide the photographic method based on screen light filling, according to battery temperature set close pattern, The different light filling pattern of normal three kinds of light filling pattern and low-light level light filling pattern, and the specific steps of different light filling patterns are made Describe in detail, three kinds of light filling patterns is preferably cooperated, further lift Consumer's Experience.

Embodiment six

A kind of structured flowchart for camera arrangement based on screen light filling that Fig. 6 provides for the embodiment of the present invention six, the device Can be realized, be typically integrated in mobile terminal by software and/or hardware, can by perform the photographic method based on screen light filling come Light filling is carried out to take pictures.As shown in fig. 6, the device includes light filling mode decision module 601, supplementary lighting module 602 and photo generation mould Block 603.

Wherein, light filling mode decision module 601, for when monitoring that camera is in opening, according to battery temperature Degree determines the light filling pattern of screen, wherein, the light filling pattern includes close pattern, normal light filling pattern and low-light level light filling mould Formula, the camera are that front camera or current location are in the positive rotatable camera of mobile terminal;Supplementary lighting module 602, for controlling the screen to carry out light filling according to identified light filling pattern;Photo generation module 603, it is described for controlling Camera catches image, and generates photo.

The camera arrangement based on screen light filling that the embodiment of the present invention five provides, close pattern, normal light filling mould can be achieved The light filling scheme of these three patterns of formula and low-light level light filling pattern, and at low ambient temperatures, have too big change without battery current Change and effect can be achieved take pictures well effect.By using above-mentioned technical proposal, enrich existing based on screen light filling The light filling pattern for scheme of taking pictures, and the light filling pattern of screen is determined according to battery temperature, it is suitable for the shooting ring of different temperatures Border, lift Consumer's Experience.

On the basis of above-described embodiment, light filling mode decision module 601, including:Close pattern determining unit, for When the battery temperature is less than the first preset temperature threshold value, the light filling pattern for determining screen is close pattern;Accordingly, the benefit Optical module 602, including:Light filling unit, for controlling the screen to be shown according to original brightness, wherein, it is described original bright Spend the brightness before camera unlatching for the screen.

On the basis of above-described embodiment, light filling mode decision module 601, it can also include:Normal mode determining unit, Light filling pattern for when the battery temperature is higher than the second preset temperature threshold value, determining screen is normal light filling pattern;Phase Answer, the supplementary lighting module 602, including:Ambient brightness acquiring unit, for obtaining environmental light brightness;First brightness determines single Member, for determining the first brightness according to the environmental light brightness, wherein, first brightness is higher than original brightness, described original Brightness is brightness of the screen before camera unlatching;First brightness display unit, for controlling the screen with institute The first brightness is stated to be shown.

On the basis of above-described embodiment, light filling mode decision module 601, it can also include:Low-light level determining unit, use In when the battery temperature is between the first preset temperature threshold value and the second preset temperature threshold value, the light filling mould of screen is determined Formula is low-light level light filling pattern;Accordingly, the supplementary lighting module 602, including:Second brightness display unit, it is described for controlling Screen shown with the second brightness, wherein, second brightness is higher than original brightness and is less than the first brightness, described original bright The brightness before camera unlatching for the screen is spent, first brightness is corresponding with the normal light filling pattern Brightness.

On the basis of above-described embodiment, the second brightness display unit, including:Luminance factor determination subelement, for root Luminance factor is determined according to the battery temperature;Second brightness determination subelement, for according to the first brightness and the luminance factor Determine the second brightness;Second brightness shows subelement, for controlling the screen to be shown with second brightness.

On the basis of above-described embodiment, photo generation module 603, including:Exposure time determining unit, for according to institute State the second brightness and determine time for exposure length;Photo generation unit, exposed for the time for exposure length and limiting safe The magnitude relationship of light time length, and control the camera to catch image according to comparative result, and generate photo.

On the basis of above-described embodiment, photo generation unit is specifically used for:When comparative result is grown for the time for exposure When degree is less than or equal to the limiting safe exposure time, the camera is controlled according to the time for exposure length seizure figure Picture, and generate photo;When comparative result is that the time for exposure length is more than the limiting safe exposure time, described in calculating The quotient of time for exposure length divided by the limiting safe exposure time simultaneously rounds up, and obtains exposure frequency N;Taken the photograph described in control Picture head opens image photomontages according to the limiting safe exposure time continuous capturing N images, and according to the N.

In addition, photo generation unit is specifically additionally operable to:Exposed in the control camera according to the limiting safe After N images of duration continuous capturing, the brightness value of the pixel of every N number of corresponding same position in the N images is carried out Overlap-add procedure, and generate photo.

Embodiment seven

The present embodiment seven provides a kind of mobile terminal, the mobile terminal be integrated with the embodiment of the present invention based on screen The camera arrangement of light filling, it can be taken pictures by performing the photographic method based on screen light filling to carry out light filling.

Exemplary, the mobile terminal in the present embodiment concretely match somebody with somebody by mobile phone, tablet personal computer and digital camera etc. It is equipped with the terminal device of display screen.

When user is taken pictures using the mobile terminal in the present embodiment, mobile terminal can determine to shield according to battery temperature The light filling pattern of curtain, and control screen to carry out light filling according to identified light filling pattern, taken pictures during screen light filling.It is logical Cross and use above-mentioned technical proposal, enrich the light filling pattern of the existing scheme of taking pictures based on screen light filling, and according to battery temperature Spend to determine the light filling pattern of screen, be suitable for the shooting environmental of different temperatures, lift Consumer's Experience.

The camera arrangement and any reality of the executable present invention of mobile terminal based on screen light filling provided in above-described embodiment The photographic method based on screen light filling that example is provided is applied, possesses and performs the corresponding functional module of this method and beneficial effect.Not The ins and outs of detailed description in the above-described embodiments, reference can be made to any embodiment of the present invention provided based on screen light filling Photographic method.

Pay attention to, above are only presently preferred embodiments of the present invention and institute's application technology principle.It will be appreciated by those skilled in the art that The invention is not restricted to specific embodiment described here, can carry out for a person skilled in the art various obvious changes, Readjust and substitute without departing from protection scope of the present invention.Therefore, although being carried out by above example to the present invention It is described in further detail, but the present invention is not limited only to above example, without departing from the inventive concept, also Other more equivalent embodiments can be included, and the scope of the present invention is determined by scope of the appended claims.

Claims (7)

  1. A kind of 1. photographic method based on screen light filling, it is characterised in that including:
    When monitoring that camera is in opening, the light filling pattern of screen is determined according to battery temperature, wherein, the light filling mould Formula includes close pattern, normal light filling pattern and low-light level light filling pattern, and the camera is front camera or current location In the positive rotatable camera of mobile terminal;
    The screen is controlled to carry out light filling according to identified light filling pattern;
    Control the camera to catch image, and generate photo;
    Wherein, the light filling pattern that screen is determined according to battery temperature, including:
    When the battery temperature is less than the first preset temperature threshold value, the light filling pattern for determining screen is close pattern;
    Accordingly, the screen is controlled to carry out light filling according to close pattern, including:
    The screen is controlled to be shown according to original brightness, wherein, the original brightness is the screen in the camera Brightness before unlatching;
    The light filling pattern that screen is determined according to battery temperature, including:
    When the battery temperature is higher than the second preset temperature threshold value, the light filling pattern for determining screen is normal light filling pattern;
    Accordingly, the screen is controlled to carry out light filling according to normal light filling pattern, including:
    Obtain environmental light brightness;First brightness is determined according to the environmental light brightness, wherein, first brightness is higher than original bright Degree, the original brightness are brightness of the screen before camera unlatching;The screen is controlled with first brightness Shown;
    The light filling pattern that screen is determined according to battery temperature, including:
    When the battery temperature is between the first preset temperature threshold value and the second preset temperature threshold value, the light filling of screen is determined Pattern is low-light level light filling pattern;
    Accordingly, the screen is controlled to carry out light filling according to low-light level light filling pattern, including:
    The screen is controlled to be shown with the second brightness, wherein, second brightness is higher than original brightness and bright less than first Degree, the original brightness are brightness of the screen before camera unlatching, and first brightness is normally to be mended with described The corresponding brightness of optical mode;
    Corresponding to low-light level light filling pattern, the control camera catches image, and generates photo, including:
    Time for exposure length is determined according to second brightness;Compare the time for exposure length and limiting safe exposure time Magnitude relationship, and control the camera to catch image according to comparative result, and generate photo;Wherein, the limiting safe exposes The exposure time of the most slow and picture of a light time a length of shooting clearly shutter;
    When comparative result is that the time for exposure length is less than or equal to the limiting safe exposure time, the shooting is controlled Head catches image according to the time for exposure length, and generates photo;
    When comparative result is that the time for exposure length is more than the limiting safe exposure time, the time for exposure length is calculated The quotient of degree divided by the limiting safe exposure time simultaneously rounds up, and obtains exposure frequency N;The camera is controlled according to institute N images of limiting safe exposure time continuous capturing are stated, and according to the N image photomontages.
  2. 2. according to the method for claim 1, it is characterised in that it is described to control the screen to be shown with the second brightness, Including:
    Luminance factor is determined according to the battery temperature;
    Second brightness is determined according to first brightness and the luminance factor;
    The screen is controlled to be shown with second brightness.
  3. 3. according to the method for claim 1, it is characterised in that it is described according to the N image photomontages, including:
    The brightness value of the pixel of every N number of corresponding same position in the N images is overlapped processing, and generates photo.
  4. A kind of 4. camera arrangement based on screen light filling, it is characterised in that including:
    Light filling mode decision module, for when monitoring that camera is in opening, screen to be determined according to battery temperature Light filling pattern, wherein, the light filling pattern includes close pattern, normal light filling pattern and low-light level light filling pattern, the shooting Head is in the positive rotatable camera of mobile terminal for front camera or current location;
    Supplementary lighting module, for controlling the screen to carry out light filling according to identified light filling pattern;
    Photo generation module, for controlling the camera to catch image, and generate photo;
    The light filling mode decision module, including:
    Close pattern determining unit, for when the battery temperature is less than the first preset temperature threshold value, determining the light filling of screen Pattern is close pattern;
    It is close pattern corresponding to identified light filling pattern, the supplementary lighting module, including:
    Light filling unit, for controlling the screen to be shown according to original brightness, wherein, the original brightness is the screen Brightness before camera unlatching;
    The light filling mode decision module, including:
    Normal mode determining unit, for when the battery temperature is higher than the second preset temperature threshold value, determining the light filling of screen Pattern is normal light filling pattern;
    It is normal light filling pattern corresponding to identified light filling pattern, the supplementary lighting module, including:
    Ambient brightness acquiring unit, for obtaining environmental light brightness;
    First brightness determining unit, for determining the first brightness according to the environmental light brightness, wherein, first brightness is higher than Original brightness, the original brightness are brightness of the screen before camera unlatching;
    First brightness display unit, for controlling the screen to be shown with first brightness;
    The light filling mode decision module, including:
    Low-light level determining unit, for the battery temperature be in the first preset temperature threshold value and the second preset temperature threshold value it Between when, the light filling pattern for determining screen is low-light level light filling pattern;
    It is low-light level light filling pattern corresponding to identified light filling pattern, the supplementary lighting module, including:
    Second brightness display unit, for controlling the screen to be shown with the second brightness, wherein, second brightness is higher than Original brightness and it is less than the first brightness, the original brightness is brightness of the screen before camera unlatching, described the One brightness is the brightness corresponding with the normal light filling pattern;
    Corresponding to low-light level light filling pattern, the photo generation module, including:
    Exposure time determining unit, for determining time for exposure length according to second brightness;
    Photo generation unit, for the time for exposure length and the magnitude relationship of limiting safe exposure time, and according to Comparative result controls the camera to catch image, and generates photo;Wherein, the limiting safe exposure time is to shoot most The exposure time of a slow and picture clearly shutter;
    The photo generation unit is specifically used for:
    When comparative result is that the time for exposure length is less than or equal to the limiting safe exposure time, the shooting is controlled Head catches image according to the time for exposure length, and generates photo;
    When comparative result is that the time for exposure length is more than the limiting safe exposure time, the time for exposure length is calculated The quotient of degree divided by the limiting safe exposure time simultaneously rounds up, and obtains exposure frequency N;The camera is controlled according to institute N images of limiting safe exposure time continuous capturing are stated, and according to the N image photomontages.
  5. 5. device according to claim 4, it is characterised in that the second brightness display unit, including:
    Luminance factor determination subelement, for determining luminance factor according to the battery temperature;
    Second brightness determination subelement, for determining the second brightness according to first brightness and the luminance factor;
    Second brightness shows subelement, for controlling the screen to be shown with second brightness.
  6. 6. device according to claim 4, it is characterised in that the photo generation unit is specifically additionally operable to:
    After the control camera is according to the limiting safe exposure time continuous capturing N images, by the N The brightness value of the pixel of every N number of corresponding same position in image is overlapped processing, and generates photo.
  7. 7. a kind of mobile terminal, it is characterised in that the mobile terminal is integrated with the base as described in claim 4-6 any one In the camera arrangement of screen light filling.
CN201610086334.4A 2016-02-15 2016-02-15 A kind of photographic method based on screen light filling, device and mobile terminal CN105554412B (en)

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CN201810091096.5A CN108111773B (en) 2016-02-15 Photographing method and device based on screen supplementary lighting, mobile terminal and storage medium

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CN105979125B (en) * 2016-06-15 2019-09-24 惠州Tcl移动通信有限公司 A kind of photographic method and system based on screen light filling
CN106027899A (en) * 2016-06-24 2016-10-12 惠州Tcl移动通信有限公司 Camera self-photographing processing method and system based on mobile terminal
CN106170042A (en) * 2016-07-14 2016-11-30 北京小米移动软件有限公司 Light compensation method and device, electronic equipment
CN107786817B (en) * 2017-10-20 2019-10-18 维沃移动通信有限公司 A kind of photographic method and mobile terminal
CN107911585B (en) * 2017-11-28 2020-06-09 维沃移动通信有限公司 Image processing method and device of mobile terminal and mobile terminal

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CN103501384A (en) * 2013-09-17 2014-01-08 广东明创软件科技有限公司 Method for adjusting electric current of flash lamp of mobile phone for taking picture and mobile phone
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