CN105554412A - Photographing method and device based on screen light compensation and mobile terminal - Google Patents
Photographing method and device based on screen light compensation and mobile terminal Download PDFInfo
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- CN105554412A CN105554412A CN201610086334.4A CN201610086334A CN105554412A CN 105554412 A CN105554412 A CN 105554412A CN 201610086334 A CN201610086334 A CN 201610086334A CN 105554412 A CN105554412 A CN 105554412A
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- 238000000034 method Methods 0.000 title claims abstract description 60
- 238000012544 monitoring process Methods 0.000 claims abstract description 6
- 230000007613 environmental effect Effects 0.000 claims description 22
- 230000000052 comparative effect Effects 0.000 claims description 15
- 230000000694 effects Effects 0.000 description 11
- 230000001960 triggered effect Effects 0.000 description 5
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 4
- 229910052744 lithium Inorganic materials 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/70—Circuitry for compensating brightness variation in the scene
- H04N23/74—Circuitry for compensating brightness variation in the scene by influencing the scene brightness using illuminating means
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/65—Control of camera operation in relation to power supply
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/70—Circuitry for compensating brightness variation in the scene
- H04N23/73—Circuitry for compensating brightness variation in the scene by influencing the exposure time
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Abstract
The embodiment of the invention discloses a photographing method and a photographing device based on screen light compensation and a mobile terminal. The method comprises the steps of when monitoring that a camera is in an opening state, determining the light compensation mode of a screen according to the temperature of a battery, wherein the light compensation mode comprises a closed mode, a normal light compensation mode and a low-luminance light compensation mode, and the camera is a front camera or a rotary camera which is currently positioned in the front surface of a mobile terminal; controlling the screen to compensate light according to the determined light compensation mode; controlling the camera to capture an image, and generating a photograph. By using the photographing method based on screen light compensation provided by the embodiment of the invention, the existing light compensation mode of the photographing scheme based on screen light compensation are enriched, and the light compensation mode of the screen is determined according to the battery temperature, thus the mobile phone can adapt to the photographing environments with different temperatures, and the user experience can be enhanced.
Description
Technical field
The embodiment of the present invention relates to shooting technology field, particularly relates 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 large multi-mobile-terminal, and along with the continuous lifting of camera performance, the camera function in mobile terminal also from strength to strength, brings facility for liking the user taken pictures.
Many mobile phone users are all liked using the front-facing camera on mobile terminal to autodyne, but the front-facing camera of existing mobile terminal is not all equipped with light compensating lamp, autodyne in night or the poor environment of light, can be difficult to because of under-exposed obtain desirable auto heterodyne effect.
In order to obtain suitable exposure when user autodynes, existing a kind of scheme coordinates front-facing camera to carry out light filling to take pictures by lighting screen (control display screen show suitable brightness).But there are the following problems for the program: light filling pattern is single, the shooting environmental of different temperatures cannot be adapted to.When user uses mobile terminal to autodyne at low ambient temperatures, for mobile terminal provides the electrolyte of the lithium battery of electric power easily to solidify, battery electric quantity is caused to decline fast, discharge capability also can correspondingly weaken, if now adopt existing screen light filling scheme to need screen intensity to heighten certain brightness (normal light filling brightness), electric current can increase suddenly, causes the sharply loss of electricity, not only affect the stand-by time of mobile terminal, and certain infringement can be caused to lithium battery.In addition, mobile terminal can be taken according to the exposure parameter corresponding to normal light filling brightness, and because lithium battery discharge capability weakens, brightness probably cannot be transferred to normal light filling brightness by support screen by the electric power provided, so the under-exposure of photo can be caused, affect shooting effect.
Summary of the invention
The object of the embodiment of the present invention is to provide a kind of photographic method based on screen light filling, device and mobile terminal, to enrich the light filling pattern of the existing scheme of taking pictures based on screen light filling.
First aspect, embodiments provides a kind of photographic method based on screen light filling, comprising:
Monitor camera when being in opening, according to the light filling pattern of battery temperature determination screen, wherein, described light filling pattern comprises " shut " mode", normal light filling pattern and low-light level light filling pattern, and described camera is the rotatable camera that front-facing camera or current location are in mobile terminal front;
Control described screen and carry out light filling according to determined light filling pattern;
Control described camera and catch image, and generate photo.
Second aspect, embodiments provides a kind of camera arrangement based on screen light filling, comprising:
Light filling mode decision module, for when monitoring camera and being in opening, according to the light filling pattern of battery temperature determination screen, wherein, described light filling pattern comprises " shut " mode", normal light filling pattern and low-light level light filling pattern, and described camera is the rotatable camera that front-facing camera or current location are in mobile terminal front;
Supplementary lighting module, carries out light filling for controlling described screen according to determined light filling pattern;
Photo generation module, catches image for controlling described camera, and generates photo.
The third aspect, embodiments provides a kind of mobile terminal, and described mobile terminal is integrated with the camera arrangement based on screen light filling in the embodiment of the present invention.
The scheme of taking pictures based on screen light filling provided in the embodiment of the present invention, when the rotatable camera monitoring front-facing camera or current location and be in mobile terminal front is in opening, according to one that the light filling pattern of battery temperature determination screen is in " shut " mode", normal light filling pattern and low-light level light filling pattern, control described screen again and carry out light filling according to determined light filling pattern, control described camera again and catch image, and generate photo.By adopting technique scheme, enriching the light filling pattern of the existing scheme of taking pictures based on screen light filling, and having determined the light filling pattern of screen according to battery temperature, the shooting environmental of different temperatures can have been adapted to, promoted Consumer's Experience.
Accompanying drawing explanation
The schematic flow sheet of a kind of photographic method based on screen light filling that Fig. 1 provides for the embodiment of the present invention one;
The schematic flow sheet of a kind of photographic method based on screen light filling that Fig. 2 provides for the embodiment of the present invention two;
The schematic flow sheet of a kind of photographic method based on screen light filling that Fig. 3 provides for the embodiment of the present invention three;
The schematic flow sheet of a kind of photographic method based on screen light filling that Fig. 4 provides for the embodiment of the present invention four;
A kind of preferred schematic flow sheet based on the photographic method of screen light filling that Fig. 5 provides for the embodiment of the present invention five;
The structured flowchart of a kind of camera arrangement based on screen light filling that Fig. 6 provides for the embodiment of the present invention six.
Embodiment
Technical scheme of the present invention is further illustrated by embodiment below in conjunction with accompanying drawing.Be understandable that, specific embodiment described herein is only for explaining the present invention, but not limitation of the invention.It also should be noted that, for convenience of description, illustrate only part related to the present invention in accompanying drawing but not entire infrastructure.
Before in further detail exemplary embodiment being discussed, it should be mentioned that some exemplary embodiments are described as the process or method described as flow chart.Although each step is described as the process of order by flow chart, many steps wherein can be implemented concurrently, concomitantly or simultaneously.In addition, the order of each step can be rearranged.Described process can be terminated when its operations are completed, but can also have the additional step do not comprised in the accompanying drawings.Described process can correspond to method, function, code, subroutine, subprogram etc.
Embodiment one
The schematic flow sheet of a kind of photographic method based on screen light filling that Fig. 1 provides for the embodiment of the present invention one, the method can be performed by the camera arrangement based on screen light filling, and wherein this device can by software and/or hardware implementing, and general accessible site in the terminal.As shown in Figure 1, the method comprises:
Step 101, monitor camera when being in opening, according to the light filling pattern of battery temperature determination screen.
Wherein, described light filling pattern comprises " shut " mode", normal light filling pattern and low-light level light filling pattern, and described camera is the rotatable camera that front-facing camera or current location are in mobile terminal front.
Exemplary, the mobile terminal in the present embodiment specifically can be the terminal equipment that mobile phone, panel computer and digital camera etc. are configured with display screen.
Front-facing camera or the rotatable camera of existing mobile terminal are not equipped with light compensating lamp.In order in night or the poor environment of light, obtain suitable exposure when user autodynes, existing a kind of scheme shows rotatable camera that suitable brightness coordinates front-facing camera or current location to be in mobile terminal front and carry out light filling by controlling display screen and take 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, and now battery electric quantity declines fast, and discharge capability is corresponding to be weakened, and battery is difficult to support screen and shows normal light filling brightness.
So the scheme of the embodiment of the present invention is provided with multiple different light filling pattern according to temperature, when mobile terminal detects that camera is in opening, can determine light filling pattern according to the temperature of battery.
Existing mobile terminal is all provided with battery temperature detecting unit (being generally arranged on Mobile terminal main board), can accomplish to detect battery temperature in real time.
The light filling pattern arranged in the embodiment of the present invention comprises " shut " mode", normal light filling pattern and low-light level light filling pattern." shut " mode" for when battery temperature low to certain limit time, then do not open screen light filling, to reduce the change of battery of mobile terminal discharging current, protection battery of mobile terminal, growth the cell phone standby time; Normal light filling pattern is for being within the scope of normal working temperature when battery temperature, and namely ambient temperature is in normal range (NR), then by existing light filling scheme, the environmentally brightness of brightness determination screen; Low-light level light filling pattern is for working as the subnormal battery temperature of battery temperature, but not low to certain limit time, light filling is carried out with the brightness lower than screen during normal light filling, the electric quantity consumption of battery can be reduced, ensure stand-by time, carrying out enhancing light filling intensity by increasing the time for exposure, the pretty good photo of shooting effect can be obtained equally.
Step 102, control screen carry out light filling according to determined light filling pattern.
Exemplary, after according to the one in battery temperature determination " shut " mode", normal light filling pattern and these three kinds of light filling patterns of low-light level light filling pattern, mobile terminal can the suitable screen controlling mobile terminal opportunity (as when screen light filling button is triggered or when key of taking pictures is triggered) according to determined light filling pattern to control the brightness of screen.
Exemplary, when described battery temperature is lower than the first preset temperature threshold value, determine that the light filling pattern of screen is " shut " mode".
Accordingly, control described screen and carry out light filling according to determined light filling pattern, can comprise: control screen and show according to original brightness, wherein, original brightness is the brightness of screen before camera is opened.
First preset temperature threshold value is a relatively low temperature value, if lower than this temperature, light filling curent change can be very large when taking pictures for the battery of mobile terminal, may damage battery, also battery provides at this temperature electric power may cannot support the screen light filling of mobile terminal.Such as, the first preset temperature threshold value can be set as-5 degree.Because the hardware configuration of different mobile terminal is different, the battery performance used also difference to some extent, and, different user is also different to the requirement of quality of taking pictures, so the first preset temperature threshold value can adjust according to practical situations, concrete restriction is not done for its concrete value the present embodiment.
If so battery temperature is lower than the first preset temperature threshold value, then controls screen and show according to the brightness of screen before camera is opened, also can be regarded as closedown light filling function, to protect battery and to 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 normal light filling pattern.
Accordingly, control screen and carry out light filling according to determined light filling pattern, can comprise: obtain environmental light brightness; Environmentally brightness determines the first brightness, and wherein, the first brightness is higher than original brightness, and original brightness is the brightness of screen before camera is opened; Control screen to show with the first brightness.
Second preset temperature threshold value can be determine a threshold value of normal battery operation temperature.Such as, can be set to 5 degree, when battery temperature is greater than 5 degree, then battery temperature is normal working temperature.Light filling can be carried out by normal light filling brightness.Now for mobile terminal provide the electrolyte of the lithium battery of electric power then not have to solidify may, battery discharge is very capable, can carry out the light filling of high brightness.Same, the second preset temperature threshold value can carry out adjusting according to practical situations, does not do concrete restriction for its concrete value the present embodiment.
Described first brightness is brightness when carrying out light filling of the screen of mobile terminal.First brightness thus time environmental light brightness determine.Environmental light brightness is lower, then the first brightness is higher, and the first brightness is higher than original brightness, to reach the object of light filling.
Mobile terminal carries out perception to the change of environmental light brightness in real time by devices such as setting ambient light sensors on mobile terminals, thus determines the value of the first brightness.
Step 103, control camera catch image, and generate photo.
Exemplary, control screen when carrying out light filling according to different light filling patterns, mobile terminal can control the image that camera catches exposure in light filling process, and the image of seizure generates photo through the series of processes such as coding of mobile terminal.
The photographic method based on screen light filling that the embodiment of the present invention one provides, when monitoring camera and being in opening, according to one that the light filling pattern of battery temperature determination screen is in " shut " mode", normal light filling pattern and low-light level light filling pattern, control described screen again and carry out light filling according to determined light filling pattern, control described camera again and catch image, and generate photo.By adopting technique scheme, enriching the light filling pattern of the existing scheme of taking pictures based on screen light filling, and having determined the light filling pattern of screen according to battery temperature, the shooting environmental of different temperatures can have been adapted to, promoted Consumer's Experience.
Embodiment two
The schematic flow sheet of a kind of photographic method based on screen light filling that Fig. 2 provides for the embodiment of the present invention two, the present embodiment, based on above-described embodiment, is optimized low-light level light filling pattern.
Accordingly, the method for the present embodiment comprises the steps:
Step 201, monitor camera when being in opening, if battery temperature is between the first preset temperature threshold value and the second preset temperature threshold value, determine that the light filling pattern of 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, illustrates that battery temperature does not have a low degree to not carrying out screen light filling lower than normal working temperature, now can adopt low-light level light filling pattern.
Step 202, control screen show with the second brightness, and wherein, the second brightness is higher than original brightness and lower than the first brightness, and original brightness is the brightness of screen before camera is opened, and the first brightness is the brightness corresponding with normal light filling pattern.
The brightness of screen after adopting the second brightness as light filling under low-light level light filling pattern.Second brightness is lower than the first brightness, if so mobile terminal controls the battery discharge current of screen when showing with the second brightness and is not large especially opening difference compared with the discharging current before camera, the battery of mobile terminal can bear this change, and also can not work the mischief to battery.
Screen intensity corresponding to low-light level light filling pattern lower than brightness corresponding to normal light filling pattern, but higher than brightness corresponding to " shut " mode", so certain light filling effect can be reached.Exemplary, in order to promote the quality of taking pictures during low-light level light filling pattern, the modes such as prolonging exposure time can be adopted to compensate.
Step 203, control camera catch image, and generate photo.
Low-light level light filling pattern, on the basis of above-described embodiment, is optimized by the present embodiment two, the light filling pattern under low temperature is carried out reasonably arranging further, makes scheme more perfect.
Embodiment three
The schematic flow sheet of a kind of photographic method based on screen light filling that Fig. 3 provides for the embodiment of the present invention three.The present embodiment is optimized further low-light level light filling pattern based on above-described embodiment, in the present embodiment, step " is controlled screen to show with the second brightness " to be optimized for: according to battery temperature determination luminance factor; The second brightness is determined according to the first brightness and luminance factor; Control screen to show with the second brightness.
Further, step " is controlled camera and catches image, and generate photo " to be optimized for: determine time for exposure length according to the second brightness; The relatively magnitude relationship of time for exposure length and limiting safe exposure time, and control camera seizure image according to comparative result, and generate photo.
Accordingly, the method for the present embodiment comprises the steps:
Step 301, monitor camera when being in opening, if battery temperature is between the first preset temperature threshold value and the second preset temperature threshold value, determine that the light filling pattern of screen is low-light level light filling pattern.
Step 302, according to battery temperature determination luminance factor.
Luminance factor is used to the display brightness of the screen set when light filling pattern is low-light level light filling pattern.The second brightness can be obtained, i.e. the display brightness of screen during low-light level light filling according to luminance factor and the first brightness.Different battery temperatures may correspond to different luminance factors.When battery temperature is between the first preset temperature threshold value and the second preset temperature threshold value, when battery temperature is lower, corresponding luminance factor is less.Exemplary, different battery temperatures and corresponding luminance factor can be set up corresponding relation list and store.When battery temperature reaches a certain numerical value, corresponding luminance factor can be transferred out automatically, and 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, determine the second brightness according to the first brightness and luminance factor.
After the mobile terminal ambient brightness that environmentally optical sensor records determines the first brightness, can select luminance factor according to battery temperature now, the product of the value of the first brightness and luminance factor is the second brightness value.Such as battery temperature is-5 degree, and corresponding luminance factor is 50%, if corresponding normal light filling brightness i.e. the first brightness is A, then the second brightness being applicable to low-light level light filling pattern is 50%A.
Step 304, control screen show with the second brightness.
Step 305, determine time for exposure length according to the second brightness.
Exemplary, the relation that the second brightness and time for exposure length can be inversely proportional to.When the value of the second brightness is lower, reach good time for exposure required for exposure effect longer.Exemplary, different battery temperatures and corresponding luminance factor to be set up corresponding relation list the same with above-mentioned, the second brightness and time for exposure can be set up corresponding relation list, be convenient to determine time for exposure length according to the second brightness.
Step 306, compare the magnitude relationship of time for exposure length and limiting safe exposure time, and control camera according to comparative result and catch image, and generate photo.
A requirement that photo is the most basic is that picture is clear.Photograph a clear photograph to hand-held, the simplest mode is that shutter will reach soon, but the too fast situation that under-exposure just may occur relatively of shutter.Limiting safe exposure time is exactly the slowest of shooting and the exposure time of a shutter of picture clear (not affecting by hand earthquake situations condition).
Every money camera has the limiting safe exposure time of its correspondence, is generally fixed value.So designer needs when practical application to consider limiting safe exposure time.If time for exposure length corresponding to the second brightness is greater than described limiting safe exposure time, then should using limiting safe exposure time as the time for exposure length that this is taken.
The photographic method based on screen light filling that the embodiment of the present invention three provides, the change of mobile terminal supplying cell electric current is reduced by the brightness of screen during minimizing light filling, ensure photographic quality by increasing time for exposure length simultaneously, utilize screen light filling to take pictures when being particularly useful for low temperature, effectively promote the experience of taking pictures of user during low temperature environment.Low-light level light filling pattern in the embodiment of the present invention is relative to existing screen light filling scheme, the shooting quality of photo can be ensured, reason is, existing screen light filling scheme can't detect battery temperature, the only light filling brightness of environmentally brightness determination screen, and determine exposure time according to this light filling brightness, when low temperature is taken, because the discharge capability of battery weakens, screen is difficult to reach determined light filling brightness, and exposure time is determined with this light filling brightness, so can under-exposure be caused, lightness is lower, may most of scene be even black, user's requirement cannot be met, poor user experience, and the embodiment of the present invention is while reducing the brightness of screen light filling, add exposure time, can battery protected and while guarantee stand-by time, ensure that the shooting quality of photo, effectively promote Consumer's Experience.
Embodiment four
The schematic flow sheet of a kind of photographic method based on screen light filling that Fig. 4 provides for the embodiment of the present invention four.Low-light level light filling pattern is optimized by the present embodiment based on above-described embodiment, in the present embodiment, by step " compare the magnitude relationship of time for exposure length and limiting safe exposure time; and according to comparative result control camera catch image; and generate photo " be optimized for: when comparative result be time for exposure length be less than or equal to limiting safe exposure time time, control camera and catch image according to time for exposure length, and generate photo; When comparative result be time for exposure length be greater than limiting safe exposure time time, calculation exposure time span divided by limiting safe exposure time quotient and round up, obtain exposure frequency N; Control camera and open image according to limiting safe exposure time continuous capturing N, and open Images uniting photo according to N.
Further, " opening Images uniting photo according to N " is optimized for: brightness value N being opened the pixel of the every N number of corresponding same position in image carries out overlap-add procedure, and generates photo.
Accordingly, the method for the present embodiment comprises the steps:
Step 401, monitor camera when being in opening, if battery temperature is between the first preset temperature threshold value and the second preset temperature threshold value, determine that the light filling pattern of screen is low-light level light filling pattern.
Step 402, according to battery temperature determination luminance factor.
Step 403, determine the second brightness according to the first brightness and luminance factor.
Step 404, control screen show with the second brightness.
Step 405, determine time for exposure length according to the second brightness.
Step 406, compare the magnitude relationship of time for exposure length and limiting safe exposure time, if time for exposure length is less than or equal to limiting safe exposure time, then perform step 407; Otherwise perform step 408 and step 409.
Step 407, control camera catch image according to time for exposure length, and generate photo.
If time for exposure length is less than or equal to limiting safe exposure time, then there will not be the problem causing photographic fog unclear because of hand shake, then directly can catch image by single exposure, generate photo.Such as, the limiting safe exposure time of camera is 0.05 second, if time for exposure length is 0.03 second, then can direct disposable seizure image, and generate photo.
Step 408, calculation exposure time span divided by limiting safe exposure time quotient and round up, obtain exposure frequency N.
If time for exposure length is greater than limiting safe exposure time, should using limiting safe exposure time as the time for exposure length that this is taken.But if with the disposable seizure image of limiting safe exposure time, generating photo can because of under-exposed and quality defect.In the present embodiment, multiexposure, multiple exposure can be adopted and the mode of carrying out Images uniting makes up above-mentioned deficiency.Calculation exposure time span is divided by the quotient of limiting safe exposure time, obtain numerical value of N, then low-light level light filling models capture is N times of limiting safe exposure time to picture rich in detail required exposure duration, can determine the times N of exposure by this multiple, the duration of each exposure is limiting safe exposure time.And do not round up for during integer at this multiple N, to make the total duration long enough of exposure, thus obtain clear photograph.
Exemplary, the limiting safe exposure time of camera is 0.05 second, time for exposure length needed for low-light level light filling pattern is 0.12 second, time for exposure length is 2.4 times of camera limiting safe exposure time, then go exposure 3 times according to limiting safe exposure time, utilize the Images uniting photo that this captures for 3 times.
Step 409, control camera are opened image according to described limiting safe exposure time continuous capturing N, and are opened Images uniting photo according to N.
Preferably, the brightness value described N can being opened the pixel of the every N number of corresponding same position in image carries out overlap-add procedure, and generates photo.
Image is opened by limiting safe exposure time continuous capturing N, overlap-add procedure is carried out in the brightness of N being opened the pixel of image same position, brightness by N exposure superposes, and just can obtain and the exposure effect corresponding to the time for exposure length determined according to the second brightness in this programme.
The photographic method based on screen light filling that the embodiment of the present invention four provides, consider the problem of the limiting safe exposure time of camera, multiple exposure is adopted when the time for exposure, length was long, then adopt the mode of exposure brightness superposition to carry out the generation of photo, increase the scope of application of low temperature light filling pattern.
Embodiment five
A kind of preferred schematic flow sheet based on the photographic method of screen light filling that Fig. 5 provides for the embodiment of the present invention five, the method comprises the steps:
Step 501, monitor camera when being in opening, obtain battery temperature.
Step 502, judge temperature range residing for battery temperature, if be in first interval, then perform step 503; If be in the second interval, then perform step 505; If be in the 3rd interval, then perform step 508.
Wherein, the first interval is lower than the first preset temperature threshold value; Second interval is higher than the second preset temperature threshold value; 3rd interval is between the first preset temperature threshold value and the second preset temperature threshold value.
When battery temperature is in the first interval, then temperature is too low, closes screen light filling and takes pictures, now then do not go to pay close attention to quality of taking pictures, but will protect battery by the change reducing electric current as far as possible, and prevents the sharply decline of battery electric quantity; When battery temperature is in the second interval, can carry out light filling according to the appropriate brightness that normal light filling is corresponding when taking pictures, now temperature can not affect battery discharge, and battery is enough to support screen and carries out light filling with this appropriate brightness, can obtain preferably shooting effect; When battery temperature is in the 3rd interval, light filling brightness can be reduced and carry out light filling.
Step 503, determine that the light filling pattern of screen is " shut " mode".
Step 504, keep the original brightness of screen, monitor key of taking pictures when being triggered, control camera and catch image, generate photo.
Do not carry out the light filling of screen when now camera is taken pictures, but keep the original brightness of screen.If now environmental light brightness is lower, then effect of taking pictures is not very desirable, and photo is comparatively dark, but closedown screen light filling can available protecting battery of mobile phone.Exemplary, when detecting that environmental light brightness is lower, can point out user, such as " current environment is comparatively dark and cannot support screen light filling, and whether PLSCONFM takes pictures ", if user is very high to effect requirements of taking pictures, can select temporarily not take pictures, closedown camera.
Step 505, determine that the light filling pattern of screen is normal light filling pattern.
Step 506, monitor key of taking pictures when being triggered, obtain environmental light brightness and environmentally brightness determines the first brightness.
Environmental light brightness determines the light filling brightness of screen when taking pictures.Such as, environmental light brightness is lower, then the brightness of screen light filling is higher, therebetween in inverse relation.
Step 507, control screen show with the first brightness, control camera and catch image, and generate photo.
Step 508, determine that the light filling pattern of screen is low-light level light filling pattern.
Step 509, according to battery temperature determination luminance factor.
Step 510, monitor key of taking pictures when being triggered, obtain environmental light brightness and also determine the first brightness according to obtained environmental light brightness.
Step 511, determine the second brightness according to the first brightness and luminance factor.
Step 512, control screen show with the second brightness.
Step 513, determine time for exposure length 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 perform step 515; Otherwise, perform step 516.
Step 515, control camera catch image according to time for exposure length, and generate photo.
Step 516, calculation exposure time span divided by limiting safe exposure time quotient and round up, obtain exposure frequency N.
After quotient rounds up, total time for exposure of N exposure is greater than the corresponding time for exposure length needed for the second brightness, can obtain better exposure when taking pictures.If round, then can affect because of under-exposure quality of taking pictures downwards.
Step 517, control camera open image according to limiting safe exposure time continuous capturing N.
Step 518, the brightness value of pixel N being opened the every N number of corresponding same position in image carry out overlap-add procedure, and generate photo.
The photographic method based on screen light filling that the embodiment of the present invention five provides, according to battery temperature setting " shut " mode", light filling pattern that normal light filling pattern is different with low-light level light filling pattern three kinds, and detailed description is made to the concrete steps of different light filling pattern, three kinds of light filling patterns are better cooperatively interacted, promotes Consumer's Experience further.
Embodiment six
The structured flowchart of a kind of camera arrangement based on screen light filling that Fig. 6 provides for the embodiment of the present invention six, this device can by software and/or hardware implementing, generally in the terminal integrated, carries out light filling take pictures by the photographic method performed based on screen light filling.As shown in Figure 6, this device comprises light filling mode decision module 601, supplementary lighting module 602 and photo generation module 603.
Wherein, light filling mode decision module 601, for when monitoring camera and being in opening, according to the light filling pattern of battery temperature determination screen, wherein, described light filling pattern comprises " shut " mode", normal light filling pattern and low-light level light filling pattern, and described camera is the rotatable camera that front-facing camera or current location are in mobile terminal front; Supplementary lighting module 602, carries out light filling for controlling described screen according to determined light filling pattern; Photo generation module 603, catches image for controlling described camera, and generates photo.
The camera arrangement based on screen light filling that the embodiment of the present invention five provides, the light filling scheme of " shut " mode", normal light filling pattern and this Three models of low-light level light filling pattern can be realized, and at low ambient temperatures, have too large change can realize effect without battery current well to take pictures effect.By adopting technique scheme, enriching the light filling pattern of the existing scheme of taking pictures based on screen light filling, and having determined the light filling pattern of screen according to battery temperature, the shooting environmental of different temperatures can have been adapted to, promoted Consumer's Experience.
On the basis of above-described embodiment, light filling mode decision module 601, comprising: " shut " mode" determining unit, for when described battery temperature is lower than the first preset temperature threshold value, determines that the light filling pattern of screen is " shut " mode"; Accordingly, described supplementary lighting module 602, comprising: light filling unit, shows according to original brightness for controlling described screen, and wherein, described original brightness is the brightness of described screen before described camera is opened.
On the basis of above-described embodiment, light filling mode decision module 601, can also comprise: normal mode determining unit, for when described battery temperature is higher than the second preset temperature threshold value, determines that the light filling pattern of screen is normal light filling pattern; Accordingly, described supplementary lighting module 602, comprising: ambient brightness acquiring unit, for obtaining environmental light brightness; First brightness determining unit, for determining the first brightness according to described environmental light brightness, wherein, described first brightness is higher than original brightness, and described original brightness is the brightness of described screen before described camera is opened; First brightness display unit, shows with described first brightness for controlling described screen.
On the basis of above-described embodiment, light filling mode decision module 601, can also comprising: low-light level determining unit, during for being between the first preset temperature threshold value and the second preset temperature threshold value at described battery temperature, determining that the light filling pattern of screen is low-light level light filling pattern; Accordingly, described supplementary lighting module 602, comprise: the second brightness display unit, show with the second brightness for controlling described screen, wherein, described second brightness is higher than original brightness and lower than the first brightness, and described original brightness is the brightness of described screen before described camera is opened, and described first brightness is the brightness corresponding with described normal light filling pattern.
On the basis of above-described embodiment, the second brightness display unit, comprising: luminance factor determination subelement, for according to described battery temperature determination luminance factor; Second brightness determination subelement, for determining the second brightness according to the first brightness and described luminance factor; Second brightness display subelement, shows with described second brightness for controlling described screen.
On the basis of above-described embodiment, photo generation module 603, comprising: exposure time determining unit, for determining time for exposure length according to described second brightness; Photo generation unit, for the magnitude relationship of more described time for exposure length and limiting safe exposure time, and controls described camera according to comparative result and catches image, and generate photo.
On the basis of above-described embodiment, photo generation unit specifically for: when comparative result be described time for exposure length be less than or equal to described limiting safe exposure time time, control described camera and catch image according to described time for exposure length, and generate photo; When comparative result be described time for exposure length be greater than described limiting safe exposure time time, calculating described time for exposure length divided by the quotient of described limiting safe exposure time rounds up, and obtains exposure frequency N; Control described camera and open image according to described limiting safe exposure time continuous capturing N, and open Images uniting photo according to described N.
In addition, photo generation unit concrete also for: after the described camera of described control opens image according to described limiting safe exposure time continuous capturing N, the brightness value described N being opened the pixel of the every N number of corresponding same position in image carries out overlap-add procedure, and generates photo.
Embodiment seven
The present embodiment seven provides a kind of mobile terminal, and this mobile terminal is integrated with the camera arrangement based on screen light filling in the embodiment of the present invention, carries out light filling take pictures by performing based on the photographic method of screen light filling.
Exemplary, the mobile terminal in the present embodiment specifically can be the terminal equipment that mobile phone, panel computer and digital camera etc. are configured with display screen.
When user uses the mobile terminal in the present embodiment to take pictures, mobile terminal can according to the light filling pattern of battery temperature determination screen, and controls screen and carry out light filling according to determined light filling pattern, takes pictures in the process of screen light filling.By adopting technique scheme, enriching the light filling pattern of the existing scheme of taking pictures based on screen light filling, and having determined the light filling pattern of screen according to battery temperature, the shooting environmental of different temperatures can have been adapted to, promoted Consumer's Experience.
The camera arrangement based on screen light filling provided in above-described embodiment and mobile terminal can perform the photographic method based on screen light filling that any embodiment of the present invention provides, and possess and perform the corresponding functional module of the method and beneficial effect.The not ins and outs of detailed description in the above-described embodiments, the photographic method based on screen light filling that can provide see any embodiment of the present invention.
Note, above are only preferred embodiment of the present invention and institute's application technology principle.Skilled person in the art will appreciate that and the invention is not restricted to specific embodiment described here, various obvious change can be carried out for a person skilled in the art, readjust and substitute and can not protection scope of the present invention be departed from.Therefore, although be described in further detail invention has been by above embodiment, the present invention is not limited only to above embodiment, when not departing from the present invention's design, can also comprise other Equivalent embodiments more, and scope of the present invention is determined by appended right.
Claims (17)
1. based on a photographic method for screen light filling, it is characterized in that, comprising:
Monitor camera when being in opening, according to the light filling pattern of battery temperature determination screen, wherein, described light filling pattern comprises " shut " mode", normal light filling pattern and low-light level light filling pattern, and described camera is the rotatable camera that front-facing camera or current location are in mobile terminal front;
Control described screen and carry out light filling according to determined light filling pattern;
Control described camera and catch image, and generate photo.
2. method according to claim 1, is characterized in that, the described light filling pattern according to battery temperature determination screen, comprising:
When described battery temperature is lower than the first preset temperature threshold value, determine that the light filling pattern of screen is " shut " mode";
Accordingly, the described screen of described control carries out light filling according to determined light filling pattern, comprising:
Control described screen to show according to original brightness, wherein, described original brightness is the brightness of described screen before described camera is opened.
3. method according to claim 1, is characterized in that, the described light filling pattern according to battery temperature determination screen, comprising:
When described battery temperature is higher than the second preset temperature threshold value, determine that the light filling pattern of screen is normal light filling pattern;
Accordingly, the described screen of described control carries out light filling according to determined light filling pattern, comprising:
Obtain environmental light brightness;
Determine the first brightness according to described environmental light brightness, wherein, described first brightness is higher than original brightness, and described original brightness is the brightness of described screen before described camera is opened;
Control described screen to show with described first brightness.
4. method according to claim 1, is characterized in that, the described light filling pattern according to battery temperature determination screen, comprising:
When described battery temperature is between the first preset temperature threshold value and the second preset temperature threshold value, determine that the light filling pattern of screen is low-light level light filling pattern;
Accordingly, the described screen of described control carries out light filling according to determined light filling pattern, comprising:
Control described screen to show with the second brightness, wherein, described second brightness is higher than original brightness and lower than the first brightness, and described original brightness is the brightness of described screen before described camera is opened, and described first brightness is the brightness corresponding with described normal light filling pattern.
5. method according to claim 4, is characterized in that, the described screen of described control shows with the second brightness, comprising:
According to described battery temperature determination luminance factor;
The second brightness is determined according to described first brightness and described luminance factor;
Control described screen to show with described second brightness.
6. method according to claim 4, is characterized in that, the described camera of described control catches image, and generates photo, comprising:
Time for exposure length is determined according to described second brightness;
The magnitude relationship of more described time for exposure length and limiting safe exposure time, and control described camera seizure image according to comparative result, and generate photo.
7. method according to claim 6, is characterized in that, describedly controls described camera according to comparative result and catches image, and generates photo, comprising:
When comparative result be described time for exposure length be less than or equal to described limiting safe exposure time time, control described camera and catch image according to described time for exposure length, and generate photo;
When comparative result be described time for exposure length be greater than described limiting safe exposure time time, calculating described time for exposure length divided by the quotient of described limiting safe exposure time rounds up, and obtains exposure frequency N; Control described camera and open image according to described limiting safe exposure time continuous capturing N, and open Images uniting photo according to described N.
8. method according to claim 7, is characterized in that, describedly opens Images uniting photo according to described N, comprising:
The brightness value described N being opened the pixel of the every N number of corresponding same position in image carries out overlap-add procedure, and generates photo.
9. based on a camera arrangement for screen light filling, it is characterized in that, comprising:
Light filling mode decision module, for when monitoring camera and being in opening, according to the light filling pattern of battery temperature determination screen, wherein, described light filling pattern comprises " shut " mode", normal light filling pattern and low-light level light filling pattern, and described camera is the rotatable camera that front-facing camera or current location are in mobile terminal front;
Supplementary lighting module, carries out light filling for controlling described screen according to determined light filling pattern;
Photo generation module, catches image for controlling described camera, and generates photo.
10. device according to claim 9, is characterized in that, described light filling mode decision module, comprising:
" shut " mode" determining unit, for when described battery temperature is lower than the first preset temperature threshold value, determines that the light filling pattern of screen is " shut " mode";
Accordingly, described supplementary lighting module, comprising:
Light filling unit, shows according to original brightness for controlling described screen, and wherein, described original brightness is the brightness of described screen before described camera is opened.
11. devices according to claim 9, is characterized in that, described light filling mode decision module, comprising:
Normal mode determining unit, for when described battery temperature is higher than the second preset temperature threshold value, determines that the light filling pattern of screen is normal light filling pattern;
Accordingly, described supplementary lighting module, comprising:
Ambient brightness acquiring unit, for obtaining environmental light brightness;
First brightness determining unit, for determining the first brightness according to described environmental light brightness, wherein, described first brightness is higher than original brightness, and described original brightness is the brightness of described screen before described camera is opened;
First brightness display unit, shows with described first brightness for controlling described screen.
12. devices according to claim 9, is characterized in that, described light filling mode decision module, comprising:
Low-light level determining unit, during for being between the first preset temperature threshold value and the second preset temperature threshold value at described battery temperature, determines that the light filling pattern of screen is low-light level light filling pattern;
Accordingly, described supplementary lighting module, comprising:
Second brightness display unit, show with the second brightness for controlling described screen, wherein, described second brightness is higher than original brightness and lower than the first brightness, described original brightness is the brightness of described screen before described camera is opened, and described first brightness is the brightness corresponding with described normal light filling pattern.
13. devices according to claim 12, is characterized in that, described second brightness display unit, comprising:
Luminance factor determination subelement, for according to described battery temperature determination luminance factor;
Second brightness determination subelement, for determining the second brightness according to described first brightness and described luminance factor;
Second brightness display subelement, shows with described second brightness for controlling described screen.
14. devices according to claim 12, is characterized in that, described photo generation module, comprising:
Exposure time determining unit, for determining time for exposure length according to described second brightness;
Photo generation unit, for the magnitude relationship of more described time for exposure length and limiting safe exposure time, and controls described camera according to comparative result and catches image, and generate photo.
15. devices according to claim 14, is characterized in that, described photo generation unit specifically for:
When comparative result be described time for exposure length be less than or equal to described limiting safe exposure time time, control described camera and catch image according to described time for exposure length, and generate photo;
When comparative result be described time for exposure length be greater than described limiting safe exposure time time, calculating described time for exposure length divided by the quotient of described limiting safe exposure time rounds up, and obtains exposure frequency N; Control described camera and open image according to described limiting safe exposure time continuous capturing N, and open Images uniting photo according to described N.
16. devices according to claim 15, is characterized in that, described photo generation unit concrete also for:
After the described camera of described control opens image according to described limiting safe exposure time continuous capturing N, the brightness value described N being opened the pixel of the every N number of corresponding same position in image carries out overlap-add procedure, and generates photo.
17. 1 kinds of mobile terminals, is characterized in that, described mobile terminal is integrated with the camera arrangement based on screen light filling as described in claim 9-16 any one.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810091096.5A CN108111773B (en) | 2016-02-15 | 2016-02-15 | Photographing method and device based on screen supplementary lighting, mobile terminal and storage medium |
| CN201610086334.4A CN105554412B (en) | 2016-02-15 | 2016-02-15 | A kind of photographic method based on screen light filling, device and mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610086334.4A CN105554412B (en) | 2016-02-15 | 2016-02-15 | A kind of photographic method based on screen light filling, device and mobile terminal |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810091096.5A Division CN108111773B (en) | 2016-02-15 | 2016-02-15 | Photographing method and device based on screen supplementary lighting, mobile terminal and storage medium |
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| CN105554412A true CN105554412A (en) | 2016-05-04 |
| CN105554412B CN105554412B (en) | 2018-03-16 |
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| CN201810091096.5A Expired - Fee Related CN108111773B (en) | 2016-02-15 | 2016-02-15 | Photographing method and device based on screen supplementary lighting, mobile terminal and storage medium |
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| CN201810091096.5A Expired - Fee Related CN108111773B (en) | 2016-02-15 | 2016-02-15 | Photographing method and device based on screen supplementary lighting, mobile terminal and storage medium |
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Also Published As
| Publication number | Publication date |
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| CN105554412B (en) | 2018-03-16 |
| CN108111773A (en) | 2018-06-01 |
| CN108111773B (en) | 2020-06-23 |
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