CN108307125A

CN108307125A - A kind of image-pickup method, device and storage medium

Info

Publication number: CN108307125A
Application number: CN201810127237.4A
Authority: CN
Inventors: 傅斌; 夏俊伟
Original assignee: Tencent Technology Shenzhen Co Ltd
Current assignee: Tencent Technology Shenzhen Co Ltd
Priority date: 2018-02-08
Filing date: 2018-02-08
Publication date: 2018-07-20
Anticipated expiration: 2038-02-08
Also published as: CN108307125B

Abstract

The embodiment of the invention discloses a kind of image-pickup method, device and storage mediums；The embodiment of the present invention can be when terminal starts preposition camera shooting process, by detecting environmental light brightness and environment light color temperature, to adjust the screen intensity of the terminal and there is by screen to camera shooting object projection the light of light filling color, while so that environmental light brightness reaches brightness needed for default shooting, colour temperature can balance, to reduce noise and color error ratio, and then can Image Acquisition preferably be carried out to camera shooting object, improve picture quality.

Description

A kind of image-pickup method, device and storage medium

Technical field

The present invention relates to fields of communication technology, and in particular to a kind of image-pickup method, device and storage medium.

Background technology

With universal and function the diversification of intelligent mobile terminal (abbreviation terminal), more and more users like using Terminal is shot, still, since the camera of existing most terminals is not equipped with light compensating lamp, if shooting environmental compared with To be dim, then the image that shoots can have that noise is excessive and under-exposed, so, how to improve under dim environment Shooting quality, also become people's one of problem of interest in recent years.

To solve the above-mentioned problems, the prior art is proposed realizes the scheme of light filling effect by increasing screen intensity. Specially when user opens camera, environmental light brightness when current shooting is obtained, by comparing environmental light brightness and is preset Shooting needed for brightness, determine and need the brightness value that enhances, then, increase screen intensity according to the brightness value of needs enhancing, It realizes light filling effect, to reduce the noise of captured image, and then achievees the purpose that improve picture quality.

In the research and practice process to the prior art, it was found by the inventors of the present invention that when environment light color temperature and white For light there are when relatively large deviation, existing scheme acquired image can have larger color error ratio, and picture quality is poor.

Invention content

A kind of image-pickup method of offer of the embodiment of the present invention, device and storage medium, can be in the case where reducing dim environment While noise, ambient light color error ratio caused by image is reduced, improves picture quality.

The embodiment of the present invention provides a kind of image-pickup method, including：

When terminal starts preposition camera shooting process, the environmental light brightness of the terminal is detected；

Adjust the screen intensity of the terminal so that the environmental light brightness reaches brightness needed for default shooting；

Under the brightness needed for the shooting, the environment light color temperature of the terminal is detected；

Light filling color is determined according to the environment light color temperature, and is had to camera shooting object projection by the screen of the terminal The light of the light filling color；

Image Acquisition is carried out to the camera shooting object by the preposition camera shooting process.

The embodiment of the present invention also provides a kind of image collecting device, including：

Brightness detection unit, for when terminal starts preposition camera shooting process, detecting the environmental light brightness of the terminal；

Brightness adjustment unit, the screen intensity for adjusting the terminal so that the environmental light brightness reaches default bat Take the photograph required brightness；

Colour temperature detection unit can be used under the brightness needed for the shooting, detect the environment light color temperature of the terminal；

Color temperature adjusting unit can be used for determining light filling color according to the environment light color temperature, and pass through the terminal Screen has the light of the light filling color to camera shooting object projection；

Collecting unit can be used for carrying out Image Acquisition to the camera shooting object by the preposition camera shooting process.

Optionally, in some embodiments, the brightness adjustment unit, specifically can be used for obtaining current display window Brightness calculates the difference between brightness and the environmental light brightness needed for default shooting, the first luminance difference is obtained, by described first Luminance difference increases the brightness of the current display window as increment so that the environmental light brightness reaches needed for default shooting Brightness.

Optionally, in some embodiments, the brightness adjustment unit specifically can be used for obtaining terminal current setting Display brightness calculates the difference between brightness and the environmental light brightness needed for default shooting, obtains the second luminance difference, will be described Second luminance difference increases the display brightness of the terminal current setting so that the environmental light brightness reaches default as increment Brightness needed for shooting.

Optionally, in some embodiments, the colour temperature detection unit may include obtain subelement, analysis subelement and Subelement is counted, it is as follows：

The acquisition subelement can be used for obtaining the image under reference object brightness needed for the shooting, be waited for Analyze image；

The analysis subelement, the pixel that can be used in the predeterminable area to the image to be analyzed are analyzed, with Determine the colour temperature rank of each pixel in the predeterminable area；

The statistics subelement, the quantity for counting the pixel corresponding to each colour temperature rank, by the most color of quantity Warm rank is determined as the environment light color temperature of the terminal.

Optionally, in some embodiments, the acquisition subelement, specifically can be used for the brightness needed for the shooting Under, by the screen of the terminal to face projects white light line, real-time tracking is carried out to the face in the case where white light is irradiated, Obtain image to be analyzed.

Optionally, in some embodiments, the analysis subelement, specifically can be used for obtaining the image to be analyzed The three primary colors rgb value of each pixel in predeterminable area calculates separately the R/G values of each pixel according to the rgb value of each pixel With B/G values, the colour temperature rank of each pixel is determined according to the R/G values of each pixel and B/G values.

Optionally, in some embodiments, the analysis subelement specifically can be used for searching preset colour temperature curve, To obtain the range of color temperature of each color temperature levels, the colour temperature belonging to each pixel is determined according to the R/G values of each pixel and B/G values Section, the range of color temperature belonging to each pixel determine the colour temperature rank of each pixel.

Optionally, in some embodiments, the analysis subelement, specifically can be used for obtaining the image to be analyzed (RGB, Red Green Blue, i.e., red, green and blue are referred to as three originals to the three primary colors of each pixel in predeterminable area Color) value, according to the rgb value of each pixel, the pixel that preset value is less than to rgb value is filtered, pixel after being filtered, according to The rgb value of pixel calculates separately the R/G values and B/G values of pixel after each filtering after each filtering, according to pixel after each filtering R/G values and B/G values determine the colour temperature rank of pixel after each filtering.

Optionally, in some embodiments, the color temperature adjusting unit may include color determination subelement and projection Unit, it is as follows：

The color determination subelement can be used for calculating light filling colour temperature according to the ambient light colour temperature, according to the benefit Light color temperature determines light filling color；

The projection subelement can be used for having the light filling face to camera shooting object projection by the screen of the terminal The light of color.

Optionally, in some embodiments, the color determination subelement specifically can be used for obtaining preset mixed light Screen intensity after colour temperature and adjustment, according to the screen intensity and ring after the mixing light color temperature, environmental light brightness, adjustment Border light color temperature calculates light filling colour temperature.

Optionally, in some embodiments, described image harvester can also include photographing unit, as follows：

The photographing unit can be used for when receiving photographing instruction, and the corresponding function of the photographing instruction is called to connect Mouthful, the image of acquisition is obtained by the function interface, obtains data of taking pictures, and photo is generated according to the data of taking pictures.

Optionally, in some embodiments, the photographing unit specifically can be used for using gray level method to the number of taking pictures According to carry out white balance processing, according to white balance treated take pictures data generate photo.

In addition, the embodiment of the present invention also provides a kind of storage medium, the storage medium is stored with a plurality of instruction, the finger Order is loaded suitable for processor, to execute the step in any image-pickup method that the embodiment of the present invention is provided.

The embodiment of the present invention can be photochromic by detecting environmental light brightness and environment when terminal starts preposition camera shooting process Temperature, to adjust the screen intensity of the terminal and there is by screen to camera shooting object projection the light of light filling color so that ring While border brightness reaches brightness needed for default shooting, colour temperature can realize balance, and then can be preferably to imaging object Carry out Image Acquisition；The shooting environmental brightness under dim environment can not only be enhanced due to the program, but also screen can be passed through The balance of colour temperature is realized to camera shooting object light of the projection with light filling color, so, dim environment can greatly reduced While lower noise, ambient light color error ratio caused by image is reduced, improves picture quality.

Description of the drawings

To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for For those skilled in the art, without creative efforts, it can also be obtained according to these attached drawings other attached Figure.

Fig. 1 a are the schematic diagram of a scenario of image-pickup method provided in an embodiment of the present invention；

Fig. 1 b are the flow charts of image-pickup method provided in an embodiment of the present invention；

Fig. 2 a are another flow charts of image-pickup method provided in an embodiment of the present invention；

Fig. 2 b are the schematic diagram of a scenario of Face datection in image-pickup method provided in an embodiment of the present invention；

Fig. 2 c are the schematic diagram of a scenario that light filling light is projected in image-pickup method provided in an embodiment of the present invention；

Fig. 3 a are the structural schematic diagrams of image collecting device provided in an embodiment of the present invention；

Fig. 3 b are another structural schematic diagrams of image collecting device provided in an embodiment of the present invention；

Fig. 4 is the structural schematic diagram of terminal provided in an embodiment of the present invention.

Specific implementation mode

Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, the every other implementation that those skilled in the art are obtained without creative efforts Example, shall fall within the protection scope of the present invention.

A kind of image-pickup method of offer of the embodiment of the present invention, device and storage medium.

Wherein, which can specifically be integrated in terminal, such as mobile phone, tablet computer or removable computer etc. and set In standby.

For example, by taking the image collecting device specifically integrates in the terminal as an example, referring to Fig. 1 a, when terminal starts preposition camera shooting When process, terminal can detect the environmental light brightness of the terminal, then, adjust the screen intensity of the terminal so that the ambient light Brightness reaches brightness needed for default shooting, hereafter, can also be under the brightness needed for the shooting, and the environment for detecting the terminal is photochromic Temperature determines light filling color according to the environment light color temperature, and has the light filling face to camera shooting object projection by the screen of the terminal The light of color, to reach the balance of colour temperature, in this way, the image of the camera shooting object acquired by the preposition camera shooting process, just not Excessive noise and color error ratio can be led to generate because environment is dim, the quality of acquired image can be improved.

Wherein, the mode for detecting the environment light color temperature of the terminal can be a variety of, for example, by taking reference object is face as an example, It then specifically can be by the screen of the terminal to face projects white light line, then, to the face under white light irradiation Real-time tracking is carried out, and the pixel in human face region is analyzed, to determine the colour temperature of each pixel in the human face region Rank, wherein the most colour temperature rank of pixel quantity is the environment light color temperature of the terminal.

It is described in detail separately below.

Embodiment one,

The present embodiment will be described from the angle of image collecting device, which can specifically be integrated in end In the equipment such as end, which may include mobile phone, tablet computer, removable computer and wearable intelligent mobile device etc..

A kind of image-pickup method, including：When terminal starts preposition camera shooting process, the environment bright of the terminal is detected Degree, adjusts the screen intensity of the terminal so that the environmental light brightness reaches brightness needed for default shooting, the brightness needed for the shooting Under, the environment light color temperature of the terminal is detected, light filling color is determined according to the environment light color temperature, and by the screen of the terminal to taking the photograph Image Acquisition is carried out to the camera shooting object as light of the object projection with the light filling color, then by the preposition camera shooting process.

As shown in Figure 1 b, the detailed process of the image-pickup method can be as follows：

101, when terminal starts preposition camera shooting process, the environmental light brightness of the terminal is detected.

For example, specifically exposal model can be entered in user, and when the front camera of unlatching terminal, called by terminal Preposition camera shooting process, and detect the environmental light brightness of the terminal；Alternatively, video recording mode can also be entered in user, and open When opening front camera, preposition camera shooting process is called by terminal, it is then detected that the environmental light brightness, etc. of the terminal；In order to retouch It states conveniently, in the present embodiment, will be illustrated for taking pictures.

Wherein, there are many modes for detecting the environmental light brightness of the terminal, for example, terminal can pass through preset sensor The light monitoring information for the currently detected environmental light brightness of carrying that interface light sensor is sent is monitored, then, from The environmental light brightness is extracted in the light monitoring information.

Wherein, which monitors interface and can in advance be registered according to the demand of practical application.

102, the screen intensity of the terminal is adjusted so that the environmental light brightness reaches brightness needed for default shooting.

Wherein, the screen intensity of terminal can be the brightness of the current display window of terminal, can also be terminal current setting Display brightness (screen intensity i.e. set by system) therefore any one following mode can specifically be selected to adjust this The screen intensity of terminal is as follows：

(1) first way；

The brightness of current display window is obtained, the difference between brightness and the environmental light brightness needed for default shooting is calculated, The first luminance difference is obtained, using first luminance difference as increment, increases the brightness of the current display window so that the environment bright Degree reaches brightness needed for default shooting.

(2) second way；

The display brightness of terminal current setting is obtained, the difference between brightness and the environmental light brightness needed for default shooting is calculated Value, obtains the second luminance difference, using second luminance difference as increment, increases the display brightness of the terminal current setting so that should Environmental light brightness reaches brightness needed for default shooting.

It should be noted that difference lies in the increased screen of first way institute is bright for first way and the second way Degree is real-time and comes into force in short-term, the screen intensity and the current display window with, i.e., when exiting the current display window, Screen intensity will be restored to original brightness (screen intensity set by system)；And use the increased screen of second way institute Curtain brightness comes into force when being long, and the screen intensity is unrelated with the current display window, i.e., when exiting the current display window, screen Curtain brightness still remains the screen intensity after the adjustment.

It optionally, can also be to determining the environmental light brightness whether less than pre- before the screen intensity for adjusting the terminal If threshold value, if so, the step of just executing the screen intensity for adjusting the terminal, otherwise, if the environmental light brightness is not less than default threshold Value, then flow terminates.

103, under the brightness needed for the shooting, the environment light color temperature of the terminal is detected.

Wherein, the environment light color temperature of the terminal is the colour temperature for the ambient light for referring to that the terminal is currently located.So-called color Temperature is a measurement unit for indicating to include in light color component.Theoretically, colour temperature refers to absolute black body from absolute zero Degree (- 273 DEG C) starts the color presented after heating.Black matrix is gradually red by blacking after heated, turns Huang, whitens, finally send out Blue light.Colour temperature at a temperature of the spectral component being heated to contained by the light that certain temperature black matrixes are sent out is known as this, Measurement unit is Kelvin, is " K " with sign flag.If black matrix is sent out under the light that a certain light source is sent out, with a certain temperature Spectral component contained by light is identical, i.e., referred to as certain K colour temperature, such as 100W light bulbs send out the color of light, with absolute black body in 2527K Color it is identical, then the colour temperature for the light that this light bulb is sent out is exactly：2527K+273K=2800K, etc..

Wherein, detect the environment light color temperature of the terminal mode can there are many, for example, specifically can be as follows：

(1) image under reference object brightness needed for the shooting is obtained, image to be analyzed is obtained.

For example, pre-set color can be projected to reference object by the screen of the terminal under the brightness needed for the shooting Then light carries out real-time tracking to the reference object under pre-set color light irradiation, obtains image to be analyzed.

Wherein, which can be configured according to the demand of practical application, for example, specifically can be according to shooting pair As surface color depending on.For example, by the reference object be face for, since the skin surface of people is partially light, with white compared with It is close, therefore, then real-time tracking can be carried out to face, come to the light of face projection white by the screen of terminal The image to be analyzed is obtained, so as to subsequently can be based on the variation of the skin color of face in the image to be analyzed, to analyze ring Border light color temperature.If that is, the reference object is face, step " obtains the image under reference object brightness needed for the shooting, obtains To figure to be analyzed " may include：

Under the brightness needed for the shooting, by the screen of the terminal to face projects white light line, to being shone in white light Face under penetrating carries out real-time tracking, obtains image to be analyzed.

(2) pixel in the predeterminable area of the image to be analyzed is analyzed, with each of in the determining predeterminable area The colour temperature rank of pixel.

For example, can specifically obtain three primary colors (RGB, the Red of each pixel in the predeterminable area of the image to be analyzed Green Blue, i.e., red, green and blue, are referred to as three primary colors) value, it is calculated separately according to the rgb value of each pixel each The R/G values (i.e. the ratio of red value and green value) and B/G values (i.e. the ratio of blue valve and green value) of pixel, according to each picture The R/G values and B/G values of element determine the colour temperature rank of each pixel.

This is because due to the colour temperature in same range, R/G values and B/G values substantially in same similar range, because Colour temperature, can be classified by this according to the value range of R/G values and B/G values according to ladder range.Wherein, per color temperature etc. Grade is all corresponding there are one range of color temperature, and the value range of the corresponding R/G values of each range of color temperature is [(R/G)_min, (R/G)_max], The value range of the corresponding B/G values of each range of color temperature is [(B/G)_min,(B/G)_max].Wherein, (R/G)_min、(R/G)_max、(B/ G)_min(B/G)_maxIt can be obtained by preset colour temperature profile lookup.

That is, specifically can determine the colour temperature area belonging to each pixel according to the R/G values of each pixel and B/G values Between, and then determining the colour temperature rank of each pixel, i.e. step " determines each pixel according to the R/G values of each pixel and B/G values Colour temperature rank " may include：

Search preset colour temperature curve, to obtain the range of color temperature of each color temperature levels, according to the R/G values of each pixel and B/G values determine the range of color temperature belonging to each pixel, and the range of color temperature belonging to each pixel determines the colour temperature of each pixel Rank.

Optionally, in order to reduce the influence that noise calculates colour temperature, after the too small pixel of rgb value can also be filtered out, Remaining pixel is analyzed again.I.e. step " according to the rgb value of each pixel calculate separately each pixel R/G values and Before B/G values ", which can also include：

According to the rgb value of each pixel, the pixel that preset value is less than to rgb value is filtered, pixel after being filtered.

Then at this point, step " the R/G values and B/G values that calculate separately each pixel according to the rgb value of each pixel " specifically may be used Think：The R/G values and B/G values of pixel after each filtering are calculated separately according to the rgb value of pixel after each filtering；

And step " the colour temperature rank that each pixel is determined according to the R/G values of each pixel and B/G values " is then specifically as follows： The colour temperature rank of pixel after each filtering is determined according to the R/G values of pixel after each filtering and B/G values.

(3) quantity for counting the pixel corresponding to each colour temperature rank, is determined as the end by the most colour temperature rank of quantity The environment light color temperature at end.

For example, if it is " 3 " to have the corresponding colour temperature rank of 100 pixels, the corresponding colour temperature rank of 50 pixels is " 2 ", and It is " 1 " to have the corresponding colour temperature rank of 300 pixels, then at this point it is possible to which the environment that colour temperature rank " 1 " is determined as to the terminal is photochromic Temperature.

104, light filling color is determined according to the environment light color temperature, and had to camera shooting object projection by the screen of the terminal The light of the light filling color.

For example, specifically light filling colour temperature can be calculated according to the ambient light colour temperature, light filling color is determined according to the light filling colour temperature.

Wherein, according to the ambient light colour temperature calculate light filling colour temperature mode can there are many, for example, can obtain preset The screen intensity after light color temperature and adjustment is mixed, then, according to the screen after mixing light color temperature, environmental light brightness, the adjustment Brightness and ambient light colour temperature calculate light filling colour temperature.

Since the colour temperature of natural light is about in 5000K or so, so, in order to realize the effect of taking pictures under natural light, need So that the colour temperature of the mixing light of ambient light and light filling reaches 5000K or so, wherein the colour temperature calculation formula of mixed light is：

T_mix=(T_a*Y_a+T_b*Y_b)/(Y_a+Y_b)；

Wherein, T_mixTo mix light color temperature, T_aFor environment light color temperature, T_bFor light filling colour temperature, Y_aFor environmental light brightness, Y_bTo adjust Screen intensity after whole.

So have above-mentioned formula that can release, light filling colour temperature T_bCalculation formula can be：

T_b=(T_mix*(Y_a+Y_b)-T_a*Y_a)/Y_b；

I.e. step is " according to the screen intensity and ambient light colour temperature calculating benefit after mixing light color temperature, environmental light brightness, the adjustment Light color temperature " specifically can be as follows：

The sum of screen intensity after computing environment brightness and adjustment, and calculate and be somebody's turn to do and (i.e. after environmental light brightness and adjustment Screen intensity and) product that light color temperature is mixed with this, obtain the first value；Computing environment light color temperature and environmental light brightness multiply Product, obtains second value；The difference for calculating first value and second value obtains third value；Calculate the third value and the screen after adjustment The quotient of brightness obtains light filling colour temperature.

It should be noted that the algorithm of above-mentioned calculating light filling colour temperature is only example, it should be appreciated that it can also be used His algorithm calculates light filling colour temperature, for example, can above-mentioned formula be carried out deforming, etc., no longer enumerated here.

After light filling color is determined, there can be the light filling face to camera shooting object projection by the screen of the terminal The light of color, for example in self-timer, the face shot to needs projects the light of the light filling color, to build the ring of natural light Border achievees the effect that white balance, etc..

105, Image Acquisition is carried out to the camera shooting object by the preposition camera shooting process.

For example, specifically Image Acquisition can be carried out to the camera shooting object by the preposition camera shooting process, image will be collected It is written in the caching of terminal, and is shown on a terminal screen, so that user carries out preview, etc..

Optionally, further operating can also be made to the image collected, for example recorded or taken pictures, i.e., in step After " carrying out Image Acquisition to the camera shooting object by the preposition camera shooting process ", which can also include：

When receiving photographing instruction, photo is generated according to the image of acquisition；Alternatively, when receiving record command, root Video is generated according to the image of acquisition.It is specific as follows：

(1) it takes pictures；

When receiving photographing instruction, the corresponding function interface of the photographing instruction is called, it is corresponding by the photographing instruction Function interface obtains the image of acquisition, obtains data of taking pictures, and photo is generated according to the data of taking pictures.

Optionally, in order to further eliminate color error ratio, the quality of photo is improved, it, can also be right before generating photo Data of taking pictures carry out white balance processing.I.e. before step " generating photo according to the data of taking pictures ", the image-pickup method is also May include：

White balance processing is carried out to the data of taking pictures, for example, the specific gray level method that may be used carries out in vain the data of taking pictures Balance Treatment, etc..

Then at this point, step " generating photo according to the data of taking pictures " is specifically as follows：According to white balance, treated takes pictures Data generate photo.

Wherein, white balance processing refers to carrying out the adjustment of white balance.So-called white balance, as white balance, white Refer to that the light being reflected into human eye is regarded since blue, green, red three kinds of coloured light ratios are identical and there is certain brightness to be formed by Feel reaction, the white or other colors seen by human eye are in addition to the solid colour of same object itself, the reflection of object or transmissison characteristic Etc. factors it is related except, it is also related with the visual response of the colour temperature of light source and human eye, and since human eye has unique adaptation Property, so, we cannot have found the variation of colour temperature sometimes, therefore, it needs by adjusting white balance, to different-colour condition The lower issuable color error ratio of institute is adjusted, so that the image finally showed can be closer to the visual custom of human eye.

(2) recorded video；

When receiving record command, the corresponding function interface of the record command is called, it is corresponding by the record command Function interface obtains the image of acquisition, obtains video data, and video is generated according to the video data.

Optionally, after obtaining photo or video, the photo or video can also be further processed, for example cut Sanction, beautification, the operations such as preserves or shares at editing.

From the foregoing, it will be observed that the present embodiment can be when terminal starts preposition camera shooting process, by detecting environmental light brightness and ring Border light color temperature, to adjust the screen intensity of the terminal and there is by screen to camera shooting object projection the light of light filling color, While so that environmental light brightness reaches brightness needed for default shooting, colour temperature can realize balance, and then can be preferably to taking the photograph As object carries out Image Acquisition；The shooting environmental brightness under dim environment can not only be enhanced due to the program, but also can be led to Screen is crossed to camera shooting object light of the projection with light filling color to realize the balance of colour temperature, so, dusk can greatly reduced Under dark situation while noise, ambient light color error ratio caused by image is reduced, improves picture quality.

Embodiment two,

According to method described in embodiment one, citing is described in further detail below.

In the present embodiment, it will specifically be integrated in the terminal, and to image object specifically as people with the image collecting device It is illustrated for face.

As shown in Figure 2 a, a kind of image-pickup method, detailed process can be as follows：

201, when terminal sets camera shooting process before activation, the environmental light brightness of the terminal is detected.

For example, specifically exposal model can be entered in user, and when opening front camera, preposition camera shooting process is called, It is then detected that the environmental light brightness of the terminal；Alternatively, video recording mode can also be entered in user, and open preposition camera shooting When head, preposition camera shooting process is called, it is then detected that the environmental light brightness, etc. of the terminal.

Wherein, there are many modes for detecting the environmental light brightness of the terminal, for example, the light that terminal local is equipped with can be utilized Line sensor is measured in real time ambient light, to obtain environmental light brightness, for example, specifically can be as follows：

Terminal monitors the light that the light sensor of interface local (i.e. terminal) configuration is sent by preset sensor Line monitoring information, wherein the light monitoring information carries currently detected environmental light brightness, then, monitors and believes from the light The environmental light brightness is extracted in breath.

Wherein, which monitors interface and can in advance be registered according to the demand of practical application, and details are not described herein.

202, terminal adjusts the screen intensity of the terminal so that the environmental light brightness reaches brightness needed for default shooting.

For example, can by adjusting current display window brightness or directly adjust terminal current setting display brightness (screen intensity i.e. set by system) improves the screen intensity, passes through the screen intensity and improves enhancing ambient light so that Environmental light brightness can reach brightness needed for default shooting.Wherein, the screen is improved by adjusting the brightness of current display window Curtain brightness, and improve the concrete operations mode point of the screen intensity by directly adjusting the display brightness of terminal current setting It can not be as follows：

(1) first way：It crosses and adjusts the brightness of current display window to improve the screen intensity；

Terminal obtains the brightness of current display window, calculates the difference between brightness and the environmental light brightness needed for default shooting Value, obtains the first luminance difference, using first luminance difference as increment, increases the brightness of the current display window so that the environment Brightness reaches brightness needed for default shooting.

For example, if the brightness of current display window is 300LX (lux), it is 500LX to preset brightness needed for shooting, and ring Border brightness is 200LX, then at this time, it may be necessary to by the brightness of current display window on the basis of 300LX, increases " 500-200= The brightness adjustment of current display window is 600LX, and then illuminates environment by the brightness of 300LX " so that the environmental light brightness Brightness 500LX needed for default shooting can be reached as possible.

(2) second way：The screen intensity is improved by directly adjusting the display brightness of terminal current setting.

Terminal obtains the display brightness of terminal current setting, calculates needed for default shooting between brightness and the environmental light brightness Difference, obtain the second luminance difference, using second luminance difference as increment, increase the display brightness of the terminal current setting, make It obtains the environmental light brightness and reaches brightness needed for default shooting.

For example, being still 500LX with brightness needed for default shooting, for environmental light brightness is 200LX, if terminal is currently set The display brightness screen intensity of setting (i.e. system) set is 400LX, then at this time, it may be necessary to by the display brightness 400LX base On plinth, increase the brightness of " 500-200=300LX ", i.e., the display brightness is adjusted to 700LX, and then illuminate environment so that should Environmental light brightness can reach brightness 500LX needed for default shooting as possible, and so on, etc..

It should be noted that difference lies in the increased screen of first way institute is bright for first way and the second way Degree is real-time and comes into force in short-term, the screen intensity and the current display window with, i.e., when exiting the current display window, Screen intensity will be restored to original brightness；And second way institute increased screen intensity is used to come into force when being long, this Screen intensity is unrelated with the current display window, i.e., when exiting the current display window, screen intensity still remains the tune Screen intensity after whole.

203, under terminal brightness needed for the shooting, by the screen of the terminal to face projects white light line, to white Face under the irradiation of coloured light line carries out real-time tracking, obtains image to be analyzed.

For example, with reference to Fig. 2 b, under dim environment, when the front camera that user opens terminal enters self-timer mode, On the one hand, terminal can be by enhancing screen intensity, to improve environmental light brightness, and on the other hand, terminal can also pass through screen Real-time tracking is carried out to the face projects white light line of user, and to the face in the case where white light is irradiated, obtains figure to be analyzed Picture.

204, terminal obtains the rgb value of each pixel in the human face region of the image to be analyzed, and according to each pixel Rgb value, to rgb value be less than preset value pixel be filtered, pixel after being filtered；For example, specifically can be as follows：

Terminal traverses each pixel in the human face region of the image to be analyzed, if there are the pictures that rgb value is less than preset value Element, then filter it is low fall the rgb value be less than preset value pixel, and return execute traverse the image to be analyzed human face region in The step of each pixel, shows to have filtered out all rgb value mistakes if the rgb value of all pixels is all higher than equal to preset value The pixel of small (i.e. rgb value is less than preset value) then can execute step 205 at this time.

205, terminal calculates separately the R/G values and B/G of pixel after each filtering according to the rgb value of pixel after each filtering Value, and according to the colour temperature rank of pixel after the R/G values of pixel after each filtering and each filtering of B/G values determination；For example, specifically may be used With as follows：

Terminal obtains respectively according to the rgb value of pixel after each filtering each filter after pixel R values (i.e. on the channels R Component), B values (component i.e. in channel B) and G values (component i.e. on the channels G), then, according to each filtering after image R values, B values and the G values of element calculate separately the ratio of the R values and G values of pixel after each filtering, obtain the R/ of pixel after each filtering The ratio of the B values and G values of pixel, obtains the B/G values of pixel after each filtering after G values, and each filtering of calculating.

After obtaining each filtering after the R/G values of pixel and B/G values, terminal can search preset colour temperature curve, to obtain The range of color temperature of each color temperature levels is taken, then, the color belonging to each pixel is determined according to the R/G values of each pixel and B/G values Between warm area, and the range of color temperature belonging to each pixel determines the colour temperature rank of each pixel.

Wherein, each color temperature levels are all corresponding there are one range of color temperature, the value model of the corresponding R/G values of each range of color temperature It encloses for [(R/G)_min, (R/G)_max], the value range of the corresponding B/G values of each range of color temperature is [(B/G)_min,(B/G)_max]。

If for example, the range of color temperature of colour temperature rank 1 be range of color temperature K, the value model of the corresponding R/G values of range of color temperature K Enclose for [0.5,1], the value range of B/G values is [0.8,1], and it is 0.9 that the R/G values of some pixel A, which are 0.6, B/G values, then this When, it may be determined that the pixel A belongs to range of color temperature K, and determines that the colour temperature rank of the pixel A is corresponding to range of color temperature K Colour temperature rank, i.e. colour temperature rank 1.

206, terminal counts the quantity of the pixel corresponding to each colour temperature rank, and the most colour temperature rank of quantity is determined as The environment light color temperature of the terminal.

For example, if it is " 3 " to have the corresponding colour temperature rank of 100 pixels, the corresponding colour temperature rank of 50 pixels is " 2 ", and It is " 1 " to have the corresponding colour temperature rank of 300 pixels, then at this point it is possible to which the environment that colour temperature rank " 1 " is determined as to the terminal is photochromic Temperature, and so on, etc..

207, terminal calculates light filling colour temperature according to the ambient light colour temperature, determines light filling color according to the light filling colour temperature, and lead to The screen for crossing the terminal has the light of the light filling color to camera shooting object projection.

Wherein, according to the ambient light colour temperature calculate light filling colour temperature mode can there are many, for example, terminal can obtain it is pre- If mixing light color temperature and adjustment after screen intensity, then, after mixing light color temperature, environmental light brightness, the adjustment Screen intensity and ambient light colour temperature calculate light filling colour temperature, specifically can be as follows：

The sum of screen intensity after terminal computing environment brightness and adjustment, and calculating should be with (i.e. environmental light brightness and tune Screen intensity after whole and) product that light color temperature is mixed with this, obtain the first value；Computing environment light color temperature and environmental light brightness Product, obtain second value；The difference for calculating first value and second value obtains third value；After calculating the third value and adjusting The quotient of screen intensity obtains light filling colour temperature；Be formulated as：

T_b=(T_mix*(Y_a+Y_b)-T_a*Y_a)/Y_b；

After light filling color is determined, there can be the light filling face to camera shooting object projection by the screen of the terminal The light of color, for example, as shown in Figure 2 c, in self-timer, the face that terminal can be shot to needs projects the light of the light filling color Line achievees the effect that white balance, etc. to build the environment of natural light.

208, terminal carries out Image Acquisition by the preposition camera shooting process to the camera shooting object.

Optionally, user can also make the image collected further operating, for example recorded or taken pictures.For example, For taking pictures, then the image-pickup method can also include step 209~211, as follows：

209, terminal is called the corresponding function interface of the photographing instruction, is connect by the function when receiving photographing instruction Mouth obtains the image of acquisition, obtains data of taking pictures.

210, terminal carries out white balance processing using gray level method to the data of taking pictures；For example, specifically can be as follows：

It sums, and then is calculated all respectively to each value of the pixel in tri- channels R, G and B in data of taking pictures The pixel average value on tri- channels R, G and B respectively, is denoted as R_aver、G_averAnd B_aver, according to R_aver、G_averAnd B_averIt calculates The pixel gain value in tri- channels R, G and B respectively, calculation formula specifically can be as follows：

R_gain=(R_aver+G_aver+B_aver)/(3*R_aver)；

G_gain=(R_aver+G_aver+B_aver)/(3*G_aver)；

B_gain=(R_aver+G_aver+B_aver)/(3*B_aver)；

Wherein, R_gainFor the pixel gain value in the channels R, G_gainFor the pixel gain value in the channels G, and B_gainIt is then channel B Pixel gain value.

Obtaining R_gain、G_gain、B_gainLater, each pixel in taking pictures data can be traversed, by R_gain、G_gain、 B_gainThe yield value in three channels is multiplied by the corresponding R values of each pixel, G values and B values respectively, you can obtains handling by white balance Data of taking pictures afterwards.

211, terminal according to white balance treated take pictures data generate photo.

Optionally, after obtaining photo, the photo can also be further processed, for example, be cut out, beautification, protect The operations such as deposit or share, details are not described herein.

From the foregoing, it will be observed that the present embodiment can be when terminal starts preposition camera shooting process, by detecting environmental light brightness and ring Border light color temperature, to adjust the screen intensity of the terminal and there is by screen to camera shooting object projection the light of light filling color, While so that environmental light brightness reaches brightness needed for default shooting, colour temperature can realize balance, and then can be preferably to taking the photograph As object progress Image Acquisition, to generate photo；The shooting environmental brightness under dim environment can not only be enhanced due to the program, And the light with light filling color can be projected to realize the balance of colour temperature to camera shooting object by screen, so, Ke Yi While greatly reducing noise under dim environment, ambient light color error ratio caused by image is reduced, improves picture quality.It is optional , it can also be before generating photo, to taking pictures, data carry out white balance processing, to be further reduced color error ratio, improve figure Image quality amount.

Embodiment three,

In order to preferably implement above method, the embodiment of the present invention also provides a kind of image collecting device, the Image Acquisition Device can be specifically integrated in the equipment such as terminal, which may include mobile phone, tablet computer, removable computer and wearing Formula Intelligent mobile equipment etc..

For example, as shown in Figure 3a, which may include brightness detection unit 301, brightness adjustment unit 302, colour temperature detection unit 303, color temperature adjusting unit 304 and collecting unit 305, it is as follows：

(1) brightness detection unit 301；

Brightness detection unit 301, for when terminal starts preposition camera shooting process, detecting the environmental light brightness of the terminal.

Wherein, there are many modes for detecting the environmental light brightness of the terminal, for example, brightness detection unit 301 can pass through Preset sensor monitors the light monitoring for the currently detected environmental light brightness of carrying that interface light sensor is sent Then information extracts the environmental light brightness from the light monitoring information.

(2) brightness adjustment unit 302；

Brightness adjustment unit 302, the screen intensity for adjusting the terminal so that the environmental light brightness reaches default shooting Required brightness；

The brightness adjustment unit 302 specifically can be used for obtaining the brightness of current display window, calculate needed for default shooting Difference between brightness and the environmental light brightness obtains the first luminance difference, and using first luminance difference as increment, it is current to increase this The brightness of display window so that the environmental light brightness reaches brightness needed for default shooting.

Alternatively, the brightness adjustment unit 302, specifically can be used for obtaining the display brightness of terminal current setting, calculate pre- If difference between brightness and the environmental light brightness needed for shooting, obtains the second luminance difference, using second luminance difference as increment, Increase the display brightness of the terminal current setting so that the environmental light brightness reaches brightness needed for default shooting.

Optionally, before the screen intensity for adjusting the terminal, brightness adjustment unit 302 can also be to determining the ambient light Whether brightness is less than predetermined threshold value, if so, the step of just executing the screen intensity for adjusting the terminal, otherwise, if the environment bright Degree is not less than predetermined threshold value, then operation terminates.

(3) colour temperature detection unit 303；

Colour temperature detection unit 303, under the brightness needed for the shooting, detecting the environment light color temperature of the terminal；

Wherein, detect the environment light color temperature of the terminal mode can there are many, for example, the colour temperature detection unit 303 can It is as follows to include obtaining subelement, analysis subelement and statistics subelement：

A, subelement is obtained；

The acquisition subelement can be used for obtaining the image under reference object brightness needed for the shooting, obtain to be analyzed Image；

For example, the acquisition subelement, specifically can be used under the brightness needed for the shooting, by the screen of the terminal to bat The light of object projection pre-set color is taken the photograph, then, real-time tracking is carried out to the reference object under pre-set color light irradiation, Obtain image to be analyzed.

Wherein, which can be configured according to the demand of practical application, for example, using the reference object as face For, it since the skin surface of people is partially light, is closer to white, therefore, can be projected to face by the screen of terminal Then the light of white carries out real-time tracking to face, to obtain the image to be analyzed, can subsequently to be waited for based on this point The variation for analysing the skin color of face in image, to analyze environment light color temperature.I.e.：

Subelement is obtained, specifically can be used under the brightness needed for the shooting, is projected to face by the screen of the terminal White light carries out real-time tracking to the face in the case where white light is irradiated, obtains image to be analyzed.

B, subelement is analyzed；

The analysis subelement, is analyzed for the pixel in the predeterminable area to the image to be analyzed, to determine that this is pre- If the colour temperature rank of each pixel in region；

For example, the analysis subelement, specifically can be used for obtaining each pixel in the predeterminable area of the image to be analyzed Three primary colors rgb value, the R/G values and B/G values of each pixel are calculated separately according to the rgb value of each pixel, according to each pixel R/G values and B/G values determine the colour temperature rank of each pixel.

Wherein, each color temperature levels are all corresponding there are one range of color temperature, the value model of the corresponding R/G values of each range of color temperature It encloses for [(R/G)_min, (R/G)_max], the value range of the corresponding B/G values of each range of color temperature is [(B/G)_min,(B/G)_max].Its In, (R/G)_min、(R/G)_max、(B/G)_min(B/G)_maxIt can be obtained by preset colour temperature profile lookup.

That is, specifically can determine the colour temperature area belonging to each pixel according to the R/G values of each pixel and B/G values Between, and then determine the colour temperature rank of each pixel, i.e.,：

The analysis subelement specifically can be used for searching preset colour temperature curve, to obtain the colour temperature of each color temperature levels Section determines the range of color temperature belonging to each pixel, belonging to each pixel according to the R/G values of each pixel and B/G values Range of color temperature determines the colour temperature rank of each pixel.

Optionally, in order to reduce the influence that noise calculates colour temperature, after the too small pixel of rgb value can also be filtered out, Remaining pixel is analyzed again.I.e.：

The analysis subelement, specifically can be used for obtaining each pixel in the predeterminable area of the image to be analyzed three are former Color rgb value, according to the rgb value of each pixel, the pixel that preset value is less than to rgb value is filtered, pixel after being filtered, root The R/G values and B/G values that pixel after each filtering is calculated separately according to the rgb value of pixel after each filtering, according to each filtering after image The R/G values and B/G values of element determine the colour temperature rank of pixel after each filtering.

C, subelement is counted；

The statistics subelement, the quantity for counting the pixel corresponding to each colour temperature rank, by the most colour temperature of quantity Rank is determined as the environment light color temperature of the terminal.

(4) color temperature adjusting unit 304；

Color temperature adjusting unit 304 can be used for determining light filling color, and the screen for passing through the terminal according to the environment light color temperature Curtain has the light of the light filling color to camera shooting object projection.

For example, the color temperature adjusting unit 304 includes color determination subelement and projection subelement, it is as follows：

The color determination subelement can be used for calculating light filling colour temperature according to the ambient light colour temperature, according to the light filling colour temperature Determine light filling color.

Wherein, according to the ambient light colour temperature calculate light filling colour temperature mode can there are many, for example, the color determines that son is single Member specifically can be used for obtaining the screen intensity after preset mixing light color temperature and adjustment, according to mixing light color temperature, the ring Screen intensity after border brightness, adjustment and ambient light colour temperature calculate light filling colour temperature, for details, reference can be made to the embodiment of the method for front, Details are not described herein.

The projection subelement, the light that can be used for that there is by the screen of the terminal to camera shooting object projection the light filling color Line.

(5) collecting unit 305；

Collecting unit 305 can be used for carrying out Image Acquisition to the camera shooting object by the preposition camera shooting process.

For example, collecting unit 305 specifically can carry out Image Acquisition by the preposition camera shooting process to the camera shooting object, it will It in the caching for collecting image write-in terminal, and is shown on a terminal screen, so that user carries out preview, etc..

Optionally, user can also make the image collected further operating, for example recorded or taken pictures, i.e., as schemed Shown in 3b, which can also include photographing unit 306, as follows：

The photographing unit, for when receiving photographing instruction, photo to be generated according to the image of acquisition；

And/or the photographing unit, it can be used for when receiving record command, video generated according to the image of acquisition.

For example, the photographing unit 306, specifically can be used for when receiving photographing instruction, the photographing instruction is called to correspond to Function interface, the image of acquisition is obtained by the corresponding function interface of the photographing instruction, data of taking pictures is obtained, is taken pictures according to this Data generate photo.

Optionally, in order to further eliminate color error ratio, the quality of photo is improved, it, can also be right before generating photo Data of taking pictures carry out white balance processing.I.e.：

The photographing unit 306, specifically for carrying out white balance processing to the data of taking pictures using gray level method, according to white balance Treated take pictures data generate photo.

In another example the photographing unit 306, specifically can be used for when receiving record command, the record command pair is called The function interface answered is obtained the image of acquisition by the corresponding function interface of the record command, obtains video data, regarded according to this Frequency is according to generation video.

Optionally, after obtaining photo or video, the photo or video can also be further processed, for example cut Sanction, beautification, the operations such as preserves or shares at editing, i.e. the image collecting device can also include optimization unit, as follows：

Optimize unit, for being cut out to photo or video, editing, beautification, the operations such as preserves or share.

When it is implemented, above each unit can be realized as independent entity, arbitrary combination can also be carried out, is made It is realized for same or several entities, the specific implementation of above each unit can be found in the embodiment of the method for front, herein not It repeats again.

From the foregoing, it will be observed that the present embodiment can detect ring when terminal starts preposition camera shooting process by brightness detection unit 301 Border brightness, and environment light color temperature is detected by colour temperature detection unit 303, the end is then adjusted by brightness adjustment unit 302 The screen intensity at end and the light to camera shooting object projection by screen from color temperature adjusting unit 304 with light filling color, make Environmental light brightness while reach brightness needed for default shooting, colour temperature can realize balance, so that collecting unit 305 can Preferably to carry out Image Acquisition to camera shooting object；Since the shooting environmental that the program can not only enhance under dim environment is bright Degree, and the light with light filling color can be projected to camera shooting object by screen and realize the balance of colour temperature, so, it can be with While noise under greatly reducing dim environment, ambient light color error ratio caused by image is reduced, improves picture quality.

Example IV,

Correspondingly, the embodiment of the present invention also provides a kind of terminal, as shown in figure 4, the terminal may include radio frequency (RF, Radio Frequency) circuit 401, the memory 402, defeated that includes one or more computer readable storage mediums Enter unit 403, display unit 404, sensor 405, voicefrequency circuit 406, Wireless Fidelity (WiFi, Wireless Fidelity) Module 407, include there are one or more than one processing core processor 408 and the components such as power supply 409.This field skill Art personnel are appreciated that the restriction of the not structure paired terminal of terminal structure shown in Fig. 4, may include more or more than illustrating Few component either combines certain components or different components arrangement.Wherein：

RF circuits 401 can be used for receiving and sending messages or communication process in, signal sends and receivees, particularly, by base station After downlink information receives, one or the processing of more than one processor 408 are transferred to；In addition, the data for being related to uplink are sent to Base station.In general, RF circuits 401 include but not limited to antenna, at least one amplifier, tuner, one or more oscillators, use Family identity module (SIM, Subscriber Identity Module) card, transceiver, coupler, low-noise amplifier (LNA, Low Noise Amplifier), duplexer etc..In addition, RF circuits 401 can also by radio communication with network and its He communicates equipment.The wireless communication can use any communication standard or agreement, including but not limited to global system for mobile telecommunications system Unite (GSM, Global System of Mobile communication), general packet radio service (GPRS, General Packet Radio Service), CDMA (CDMA, Code Division Multiple Access), wideband code division it is more Location (WCDMA, Wideband Code Division Multiple Access), long term evolution (LTE, Long Term Evolution), Email, short message service (SMS, Short Messaging Service) etc..

Memory 402 can be used for storing software program and module, and processor 408 is stored in memory 402 by operation Software program and module, to perform various functions application and data processing.Memory 402 can include mainly storage journey Sequence area and storage data field, wherein storing program area can storage program area, the application program (ratio needed at least one function Such as sound-playing function, image player function) etc.；Storage data field can be stored uses created data according to terminal (such as audio data, phone directory etc.) etc..In addition, memory 402 may include high-speed random access memory, can also include Nonvolatile memory, for example, at least a disk memory, flush memory device or other volatile solid-state parts.Phase Ying Di, memory 402 can also include Memory Controller, to provide processor 408 and input unit 403 to memory 402 Access.

Input unit 403 can be used for receiving the number or character information of input, and generate and user setting and function Control related keyboard, mouse, operating lever, optics or the input of trace ball signal.Specifically, in a specific embodiment In, input unit 403 may include touch sensitive surface and other input equipments.Touch sensitive surface, also referred to as touch display screen or tactile Control plate, collect user on it or neighbouring touch operation (such as user using any suitable object such as finger, stylus or Operation of the attachment on touch sensitive surface or near touch sensitive surface), and corresponding connection dress is driven according to preset formula It sets.Optionally, touch sensitive surface may include both touch detecting apparatus and touch controller.Wherein, touch detecting apparatus is examined The touch orientation of user is surveyed, and detects the signal that touch operation is brought, transmits a signal to touch controller；Touch controller from Touch information is received on touch detecting apparatus, and is converted into contact coordinate, then gives processor 408, and can reception processing Order that device 408 is sent simultaneously is executed.Furthermore, it is possible to a variety of using resistance-type, condenser type, infrared ray and surface acoustic wave etc. Type realizes touch sensitive surface.In addition to touch sensitive surface, input unit 403 can also include other input equipments.Specifically, other are defeated Enter equipment and can include but is not limited to physical keyboard, function key (such as volume control button, switch key etc.), trace ball, mouse It is one or more in mark, operating lever etc..

Display unit 404 can be used for showing information input by user or be supplied to user information and terminal it is various Graphical user interface, these graphical user interface can be made of figure, text, icon, video and its arbitrary combination.Display Unit 404 may include display panel, optionally, may be used liquid crystal display (LCD, Liquid Crystal Display), The forms such as Organic Light Emitting Diode (OLED, Organic Light-Emitting Diode) configure display panel.Further , touch sensitive surface can cover display panel, when touch sensitive surface detects on it or after neighbouring touch operation, send processing to Device 408 is followed by subsequent processing device 408 and is provided on a display panel accordingly according to the type of touch event to determine the type of touch event Visual output.Although in Fig. 4, touch sensitive surface and display panel are to realize input and input as two independent components Function, but in some embodiments it is possible to touch sensitive surface and display panel are integrated and realizes and outputs and inputs function.

Terminal may also include at least one sensor 405, such as optical sensor, motion sensor and other sensors. Specifically, optical sensor may include ambient light sensor and proximity sensor, wherein ambient light sensor can be according to ambient light Light and shade adjust the brightness of display panel, proximity sensor can close display panel and/or the back of the body when terminal is moved in one's ear Light.As a kind of motion sensor, gravity accelerometer can detect in all directions (generally three axis) acceleration Size can detect that size and the direction of gravity when static, can be used to identify mobile phone posture application (such as horizontal/vertical screen switching, Dependent game, magnetometer pose calibrating), Vibration identification correlation function (such as pedometer, tap) etc.；It can also configure as terminal The other sensors such as gyroscope, barometer, hygrometer, thermometer, infrared sensor, details are not described herein.

Voicefrequency circuit 406, loud speaker, microphone can provide the audio interface between user and terminal.Voicefrequency circuit 406 can By the transformed electric signal of the audio data received, it is transferred to loud speaker, voice signal output is converted to by loud speaker；It is another The voice signal of collection is converted to electric signal by aspect, microphone, and audio data is converted to after being received by voicefrequency circuit 406, then After the processing of audio data output processor 408, through RF circuits 401 to be sent to such as another terminal, or by audio data Output is further processed to memory 402.Voicefrequency circuit 406 is also possible that earphone jack, with provide peripheral hardware earphone with The communication of terminal.

WiFi belongs to short range wireless transmission technology, and terminal can help user's transceiver electronics postal by WiFi module 407 Part, browsing webpage and access streaming video etc., it has provided wireless broadband internet to the user and has accessed.Although Fig. 4 is shown WiFi module 407, but it is understood that, and it is not belonging to must be configured into for terminal, it can not change as needed completely Become in the range of the essence of invention and omits.

Processor 408 is the control centre of terminal, using the various pieces of various interfaces and connection whole mobile phone, is led to It crosses operation or executes the software program and/or module being stored in memory 402, and call and be stored in memory 402 Data execute the various functions and processing data of terminal, to carry out integral monitoring to mobile phone.Optionally, processor 408 can wrap Include one or more processing cores；Preferably, processor 408 can integrate application processor and modem processor, wherein answer With the main processing operation system of processor, user interface and application program etc., modem processor mainly handles wireless communication. It is understood that above-mentioned modem processor can not also be integrated into processor 408.

Terminal further includes the power supply 409 (such as battery) powered to all parts, it is preferred that power supply can pass through power supply pipe Reason system and processor 408 are logically contiguous, to realize management charging, electric discharge and power managed by power-supply management system Etc. functions.Power supply 409 can also include one or more direct current or AC power, recharging system, power failure inspection The random components such as slowdown monitoring circuit, power supply changeover device or inverter, power supply status indicator.

Although being not shown, terminal can also include camera, bluetooth module etc., and details are not described herein.Specifically in this implementation In example, the processor 408 in terminal can be corresponding by the process of one or more application program according to following instruction Executable file is loaded into memory 402, and runs the application program being stored in memory 402 by processor 408, from And realize various functions：

When terminal starts preposition camera shooting process, the environmental light brightness of the terminal is detected, the screen intensity of the terminal is adjusted, So that the environmental light brightness reaches brightness needed for default shooting, under the brightness needed for the shooting, the environment for detecting the terminal is photochromic Temperature determines light filling color according to the environment light color temperature, and has the light filling face to camera shooting object projection by the screen of the terminal The light of color, then Image Acquisition is carried out to the camera shooting object by the preposition camera shooting process.

Wherein, the screen intensity of terminal can be the brightness of the current display window of terminal, can also be terminal current setting Display brightness (screen intensity i.e. set by system), i.e., in addition to can be improved by adjusting the brightness of current display window Except screen intensity, screen intensity can also be improved by adjusting the display brightness of terminal current setting, specifically may refer to The embodiment of front, details are not described herein.

Wherein, detect the environment light color temperature of the terminal mode can also there are many, exist for example, reference object can be obtained Image under brightness needed for the shooting, obtains image to be analyzed, divides the pixel in the predeterminable area of the image to be analyzed Analysis, to determine then the colour temperature rank of each pixel in the predeterminable area counts the pixel corresponding to each colour temperature rank The most colour temperature rank of quantity is determined as the environment light color temperature, etc. of the terminal by quantity.

Optionally, in order to reduce the influence that noise calculates colour temperature, after the too small pixel of rgb value can also be filtered out, Remaining pixel is analyzed again.I.e. in the R/G values and B/G values for calculating separately each pixel according to the rgb value of each pixel Before, it can also be filtered according to the rgb value of each pixel, the pixel that preset value is less than to rgb value, obtain filtering after image Then element just calculates separately the R/G values and B/G values of pixel after each filtering, and root according to the rgb value of pixel after each filtering The colour temperature rank of pixel after each filtering is determined according to the R/G values and B/G values of pixel after each filtering.

Optionally, after collecting image, further operating can also be made to the image collected, for example recorded Or take pictures, preceding embodiment is referred to, details are not described herein.

The implementation of above each operation is for details, reference can be made to the embodiment of the method for front, and details are not described herein.

From the foregoing, it will be observed that when the terminal of the present embodiment can set camera shooting process before activation, by detect environmental light brightness and Environment light color temperature, to adjust the screen intensity of the terminal and there is by screen to camera shooting object projection the light of light filling color Line so that while environmental light brightness reaches brightness needed for default shooting, colour temperature can realize balance, and then can be preferably right It images object and carries out Image Acquisition；The shooting environmental brightness under dim environment can not only be enhanced due to the program, but also can be with The light with light filling color is projected to realize the balance of colour temperature to camera shooting object by screen, so, it can greatly reduce Under dim environment while noise, ambient light color error ratio caused by image is reduced, improves picture quality.

Embodiment five,

It will appreciated by the skilled person that all or part of step in the various methods of above-described embodiment can be with It is completed by instructing, or controls relevant hardware by instructing and complete, which can be stored in one and computer-readable deposit In storage media, and is loaded and executed by processor.

For this purpose, the embodiment of the present invention provides a kind of storage medium, wherein being stored with a plurality of instruction, which can be handled Device is loaded, the step of to execute any image-pickup method that the embodiment of the present invention is provided.For example, the instruction can be with Execute following steps：

The specific implementation of above each operation can be found in the embodiment of front, and details are not described herein.

Wherein, which may include：Read-only memory (ROM, Read Only Memory), random access memory Body (RAM, Random Access Memory), disk or CD etc..

By the instruction stored in the storage medium, any image that the embodiment of the present invention is provided can be executed and adopted Step in set method, it is thereby achieved that achieved by any image-pickup method that the embodiment of the present invention is provided Advantageous effect refers to the embodiment of front, and details are not described herein.

It is provided for the embodiments of the invention a kind of image-pickup method, device and storage medium above and has carried out detailed Jie It continues, principle and implementation of the present invention are described for specific case used herein, and the explanation of above example is only It is the method and its core concept for being used to help understand the present invention；Meanwhile for those skilled in the art, according to the present invention Thought, there will be changes in the specific implementation manner and application range, in conclusion the content of the present specification should not be construed as Limitation of the present invention.

Claims

1. a kind of image-pickup method, which is characterized in that including：

Light filling color is determined according to the environment light color temperature, and is projected to camera shooting object with described by the screen of the terminal The light of light filling color；

2. according to the method described in claim 1, it is characterized in that, the screen intensity of the adjustment terminal so that described Environmental light brightness reaches brightness needed for default shooting, including：

Obtain the brightness of current display window；

The difference between brightness and the environmental light brightness needed for default shooting is calculated, the first luminance difference is obtained；

Using first luminance difference as increment, increase the brightness of the current display window so that the environmental light brightness reaches To brightness needed for default shooting.

3. according to the method described in claim 1, it is characterized in that, the screen intensity of the adjustment terminal so that described Environmental light brightness reaches brightness needed for default shooting, including：

Obtain the display brightness of terminal current setting；

The difference between brightness and the environmental light brightness needed for default shooting is calculated, the second luminance difference is obtained；

Using second luminance difference as increment, increase the display brightness of the terminal current setting so that the environment bright Degree reaches brightness needed for default shooting.

4. according to the method described in claim 1, it is characterized in that, under the brightness needed for the shooting, the end is detected The environment light color temperature at end, including：

The image under reference object brightness needed for the shooting is obtained, image to be analyzed is obtained；

Pixel in the predeterminable area of the image to be analyzed is analyzed, with each pixel in the determination predeterminable area Colour temperature rank；

The most colour temperature rank of quantity is determined as the ring of the terminal by the quantity for counting the pixel corresponding to each colour temperature rank Border light color temperature.

5. according to the method described in claim 4, it is characterized in that, the reference object be face, the acquisition reference object Image under the brightness needed for the shooting obtains image to be analyzed, including：

Under the brightness needed for the shooting, by the screen of the terminal to face projects white light line；

Real-time tracking is carried out to the face in the case where white light is irradiated, obtains image to be analyzed.

6. according to the method described in claim 4, it is characterized in that, picture in the predeterminable area to the image to be analyzed Element is analyzed, with the colour temperature rank of each pixel in the determination predeterminable area, including：

Obtain the three primary colors rgb value of each pixel in the predeterminable area of the image to be analyzed；

The R/G values and B/G values of each pixel are calculated separately according to the rgb value of each pixel；

The colour temperature rank of each pixel is determined according to the R/G values of each pixel and B/G values.

7. according to the method described in claim 6, it is characterized in that, the R/G values and B/G values of each pixel of the basis determine often The colour temperature rank of a pixel, including：

Preset colour temperature curve is searched, to obtain the range of color temperature of each color temperature levels；

The range of color temperature belonging to each pixel is determined according to the R/G values of each pixel and B/G values；

Range of color temperature belonging to each pixel determines the colour temperature rank of each pixel.

8. according to the method described in claim 6, it is characterized in that, the rgb value of each pixel of the basis calculate separately it is each Before the R/G values and B/G values of pixel, further include：

According to the rgb value of each pixel, the pixel that preset value is less than to rgb value is filtered, pixel after being filtered；

The rgb value of each pixel of basis calculates separately the R/G values and B/G values of each pixel, specially：According to each filtering The rgb value of pixel calculates separately the R/G values and B/G values of pixel after each filtering afterwards；

The R/G values and B/G values of each pixel of basis determine the colour temperature rank of each pixel, specially：According to each filtering The R/G values of pixel and B/G values determine the colour temperature rank of pixel after each filtering afterwards.

9. according to claim 1 to 8 any one of them method, which is characterized in that described to be determined according to the environment light color temperature Light filling color, including：

Light filling colour temperature is calculated according to the ambient light colour temperature；

Light filling color is determined according to the light filling colour temperature.

10. according to the method described in claim 9, it is characterized in that, it is described according to the ambient light colour temperature calculate light filling colour temperature, Including：

Obtain the screen intensity after preset mixing light color temperature and adjustment；

According to the screen intensity and ambient light colour temperature calculating light filling colour temperature after the mixing light color temperature, environmental light brightness, adjustment.

11. according to the method described in claim 10, it is characterized in that, it is described according to the mixing light color temperature, environmental light brightness, Screen intensity and ambient light colour temperature after adjustment calculate light filling colour temperature, including：

Computing environment brightness and adjustment after screen intensity sum, and calculate described in and with the product for mixing light color temperature, Obtain the first value；

The product of computing environment light color temperature and environmental light brightness, obtains second value；

The difference for calculating first value and second value, obtains third value；

The quotient for calculating the third value and the screen intensity after adjustment, obtains light filling colour temperature.

12. according to claim 1 to 8 any one of them method, which is characterized in that described to pass through the preposition camera shooting process pair After the camera shooting object carries out Image Acquisition, further include：

When receiving photographing instruction, the corresponding function interface of the photographing instruction is called；

The image that acquisition is obtained by the function interface, obtains data of taking pictures；

Photo is generated according to the data of taking pictures.

13. according to the method for claim 12, which is characterized in that before data of taking pictures described in the basis generate photo, Further include：

White balance processing is carried out to the data of taking pictures using gray level method；

Data of taking pictures described in the basis generate photo, specially：According to white balance treated take pictures data generate photo.

14. a kind of image collecting device, which is characterized in that including：

Brightness adjustment unit, the screen intensity for adjusting the terminal so that the environmental light brightness reaches default shooting institute Need brightness；

Colour temperature detection unit, under the brightness needed for the shooting, detecting the environment light color temperature of the terminal；

Color temperature adjusting unit, for determining light filling color according to the environment light color temperature, and by the screen of the terminal to taking the photograph As light of the object projection with the light filling color；

Collecting unit, for carrying out Image Acquisition to the camera shooting object by the preposition camera shooting process.

15. a kind of storage medium, which is characterized in that the storage medium is stored with a plurality of instruction, and described instruction is suitable for processor It is loaded, the step in 1 to 13 any one of them image-pickup method is required with perform claim.