CN106954027B - Image shooting method and mobile terminal - Google Patents
Image shooting method and mobile terminal Download PDFInfo
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- CN106954027B CN106954027B CN201710078892.0A CN201710078892A CN106954027B CN 106954027 B CN106954027 B CN 106954027B CN 201710078892 A CN201710078892 A CN 201710078892A CN 106954027 B CN106954027 B CN 106954027B
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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
Abstract
The embodiment of the invention provides an image shooting method and a mobile terminal, wherein the method comprises the following steps: starting a camera; acquiring a preview image through the camera, and calculating the color temperature of the preview image; determining the light supplement intensity according to the color temperature of the preview image; and controlling a light supplement lamp to work under the light supplement intensity, and shooting an image under the irradiation of the light supplement lamp. According to the embodiment of the invention, the light supplement brightness can be adjusted according to the requirements of the current shooting environment in the shooting process, the shooting requirements of users are met, and better shooting experience is brought to the users.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to an image capturing method and a mobile terminal.
Background
With the development and popularization of mobile terminals, the frequency of photographing by users using mobile terminals is very high, and mobile terminals are beginning to gradually replace digital cameras which are inconvenient to carry.
In order to improve the shooting effect of the mobile terminal, the shooting hardware configuration of the mobile terminal is also more and more abundant, for example, the rear camera of the mobile terminal is configured with a flash, and the front camera is also configured with a flash gradually.
At mobile terminal shooting in-process, can carry out the light filling through using the flash light usually and promote the shooting effect, but the light filling function among the prior art all adopts invariable drive mode, all adopts the same light filling luminance under any circumstance promptly, and this can influence the effect of shooing to a certain extent, can't satisfy user's shooting demand.
Disclosure of Invention
In view of the above problems, embodiments of the present invention are proposed to provide an image capturing method and a mobile terminal that overcome the above problems.
The embodiment of the invention discloses an image shooting method, which comprises the following steps:
starting a camera;
acquiring a preview image through the camera, and calculating the color temperature of the preview image;
determining the light supplement intensity according to the color temperature of the preview image;
and controlling a light supplement lamp to work under the light supplement intensity, and shooting an image under the irradiation of the light supplement lamp.
Preferably, before the step of acquiring a preview image by the camera and calculating the color temperature of the preview image, the method further includes:
entering a preview image interface;
displaying an automatic light supplementing mode option in the preview image interface;
the collecting of the preview image through the camera and the calculation of the color temperature of the preview image comprise:
and when the user is detected to select the automatic light supplement mode option, acquiring a preview image through the camera, and calculating the color temperature of the preview image to enter an automatic light supplement mode.
Preferably, the step of determining the fill-in light intensity according to the color temperature of the preview image includes:
matching the color temperature range where the color temperature of the preview image is located with a preset color temperature list, and determining a light supplement grade corresponding to the color temperature of the preview image, wherein the color temperature list comprises one or more corresponding relations between the color temperature range and the light supplement grade;
and determining the fill light intensity corresponding to the fill light grade.
Preferably, the step of controlling the light supplement lamp to operate at the light supplement intensity and shooting the image under the irradiation of the light supplement lamp includes:
determining a light supplement current corresponding to the light supplement intensity according to a preset corresponding relation between the light supplement intensity and the light supplement current;
and controlling a light supplement lamp to work under the light supplement current, and shooting an image under the irradiation of the light supplement lamp.
Preferably, the camera comprises a front camera.
The embodiment of the invention also discloses a mobile terminal for image shooting, which comprises:
the camera opening module is used for opening the camera;
the color temperature calculation module is used for acquiring a preview image through the camera and calculating the color temperature of the preview image;
the light supplement intensity determination module is used for determining light supplement intensity according to the color temperature of the preview image;
and the image shooting module is used for controlling the light supplement lamp to work under the light supplement intensity and shooting images under the irradiation of the light supplement lamp.
Preferably, the mobile terminal further includes:
the preview image interface entering module is used for entering a preview image interface;
the option display module is used for displaying an automatic light supplement mode option in the preview image interface;
the color temperature calculation module includes:
and the automatic light supplementing mode enters a color temperature calculation submodule for acquiring a preview image through the camera when the automatic light supplementing mode option selected by the user is detected, calculating the color temperature of the preview image, and entering the automatic light supplementing mode when the automatic light supplementing mode option selected by the user is detected.
Preferably, the fill light intensity determining module includes:
the light supplement grade determining submodule is used for inquiring and matching a preset color temperature list according to a color temperature range where the color temperature of the preview image is located, determining a light supplement grade corresponding to the color temperature of the preview image, wherein the color temperature list comprises one or more corresponding relations between the color temperature range and the light supplement grade, matching the color temperature of the preview image with the preset color temperature list, and determining the light supplement grade corresponding to the color temperature of the preview image, and the color temperature list comprises one or more corresponding relations between the color temperature and the light supplement grade;
and the corresponding fill-in light intensity determining submodule is used for determining the fill-in light intensity corresponding to the fill-in light grade.
Preferably, the image photographing module includes:
the light supplement current determination submodule is used for determining light supplement current corresponding to the light supplement intensity according to a preset corresponding relation between the light supplement intensity and the light supplement current;
and the light supplement image shooting submodule is used for controlling the light supplement lamp to work under the light supplement current and shooting images under the irradiation of the light supplement lamp.
Preferably, the camera comprises a front camera.
The embodiment of the invention has the following advantages:
in the embodiment of the invention, the camera is started to collect the preview image, the color temperature of the preview image is calculated, the light supplement intensity is determined according to the color temperature of the preview image, the light supplement lamp is controlled to work under the light supplement intensity, and the image is shot under the irradiation of the light supplement lamp, so that the light supplement brightness can be adjusted according to the requirement of the current shooting environment in the shooting process, the shooting requirement of a user is met, and better shooting experience is brought to the user.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.
FIG. 1 is a flowchart illustrating steps of a method for capturing images according to a first embodiment of the present invention;
FIG. 2 is a flowchart illustrating steps of a method for capturing images according to a second embodiment of the present invention;
FIG. 3 is a flowchart illustrating the steps of a method for capturing images according to a third embodiment of the present invention;
FIG. 4 is a schematic diagram of a progress bar according to a third embodiment of the present invention;
fig. 5 is a block diagram of a mobile terminal according to a fourth embodiment of the present invention;
fig. 5a is a block diagram of a color temperature calculation module according to a fourth embodiment of the present invention;
fig. 5b is a block diagram of a light supplement intensity determining module according to a fourth embodiment of the present invention;
FIG. 5c is a block diagram of an image capturing module according to a fourth embodiment of the present invention;
fig. 6 is a block diagram of a mobile terminal according to a fifth embodiment of the present invention;
fig. 7 is a block diagram of a mobile terminal according to a sixth embodiment of the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
Referring to fig. 1, a flowchart illustrating steps of a method for image capturing according to a first embodiment of the present invention is shown, which may specifically include the following steps:
103, determining the light supplement intensity according to the color temperature of the preview image;
and 104, controlling a light supplement lamp to work under the light supplement intensity, and shooting an image under the irradiation of the light supplement lamp.
In the embodiment of the invention, the camera is started to collect the preview image, the color temperature of the preview image is calculated, the light supplement intensity is determined according to the color temperature of the preview image, the light supplement lamp is controlled to work under the light supplement intensity, and the image is shot under the irradiation of the light supplement lamp, so that the light supplement brightness can be adjusted according to the requirement of the current shooting environment in the shooting process, the shooting requirement of a user is met, and better shooting experience is brought to the user.
Example two
Referring to fig. 2, a flowchart illustrating steps of a method for image capturing according to a second embodiment of the present invention is shown.
The embodiment of the invention can be applied to a mobile terminal with a camera, such as a smart Phone, a Personal Digital Assistant (PDA), and the like, and an operating system of the mobile terminal can include Android, IOS, Windows Phone, Windows, and the like, which is not limited in the invention.
Specifically, the embodiment of the present invention may include the following steps:
after the user clicks the camera icon, the mobile terminal may turn on the camera.
after the camera is started, the mobile terminal can enter a preview image interface.
In one embodiment, in the preview image interface, the camera can continuously perform framing imaging, that is, continuously shoot preview images to form a video animation, which is displayed to the user.
In a preferred embodiment of the present invention, the camera may comprise a front camera.
Specifically, when a user clicks a camera icon, the mobile terminal opens a camera application program, the mobile terminal opens the front camera according to the selection of the user, a preview image interface is entered, the front camera views for imaging, and the imaging of the camera is displayed in the preview image interface.
in the embodiment of the invention, after the preview image interface is opened, the mobile terminal can show the automatic supplementary lighting mode to the user in the preview image interface.
The automatic light supplementing mode option means that when the option is detected to be selected by a user, the mobile terminal can enter an automatic light supplementing mode, and in the automatic light supplementing mode, the mobile terminal can automatically adjust the light brightness of the light supplementing device according to the current shooting environment to achieve automatic light supplementing.
In an optional example, the mobile terminal may further present a manual fill-in mode option to the user.
The manual light supplement mode option means that when the option is detected to be selected by a user, the mobile terminal can enter a manual light supplement mode, and in the manual light supplement mode, the mobile terminal can correspondingly adjust the light brightness of the light supplement device according to the selection operation of the user to realize manual light supplement.
In a specific implementation, the options of the automatic light supplement mode and/or the manual light supplement mode can be displayed in the form of function buttons. Of course, besides the modes of the function buttons, those skilled in the art may also display the options of the automatic fill-in light mode and/or the manual fill-in light mode in any form according to actual requirements, which is not limited in the present invention.
in the embodiment of the present invention, when it is detected that the user selects the option of the automatic light supplement mode, the mobile terminal may enter the automatic light supplement mode.
Specifically, under the condition that the automatic light supplement mode is displayed in the form of the function button, the user clicks the function button representing the option of the automatic light supplement mode, the mobile terminal can determine that the user selects the automatic light supplement mode by detecting the operation, and then the mobile terminal enters the automatic light supplement mode.
After entering the automatic supplementary lighting mode, the mobile terminal can acquire a frame of preview image.
It should be noted that a frame is a single video frame in the smallest unit of a video movie, and corresponds to each shot on a motion picture film, and a frame is a still frame.
After entering the automatic supplementary lighting mode, the camera can acquire a frame of preview image, and the preview image is used for determining the color temperature of the current environment. For example, the acquired one-frame preview image may be a last taken preview image of the continuously taken preview images after the camera enters the preview image interface.
After the preview image is collected, the mobile terminal can calculate the color temperature of the preview image;
where color temperature is a physical quantity used in illumination optics to define the color of a light source, i.e., a black body is heated to a temperature at which the color of light emitted by the black body is the same as the color of light emitted by the light source, and the temperature heated by the black body is called the color temperature (coloremperate) of the light source, and the unit is expressed by "K" (kelvin temperature unit).
For example, a black body is dark red (the radiation intensity of a certain red wavelength is the largest) when it is subjected to a thermal force corresponding to 500-550 ℃, and is yellow when it reaches 1050-1150 ℃, so that the color component of the light source corresponds to the temperature to which the black body is subjected.
In a specific implementation, the mobile terminal may calculate a color temperature of the captured preview Image through an ISP (Image Signal Processor).
As an example, the ISP may employ a white balance algorithm to calculate the color temperature of the acquired preview image.
Specifically, the acquired preview image may be divided into MxN blocks, for example, 25 × 25, and the basic information (the number of white pixels, and the average of components of R/G/B (Red/Green/Blue) channels) of each block is counted, for each block, a color temperature may be calculated according to the average of components of R/G/B channels, all white blocks in the image are found, a color temperature curve is then formed, and the color temperature of the preview image is determined according to the color temperature curve.
For example, if the light source is a single light source, the most color temperature can be taken as the current color temperature, for example, in 25 × 25 ═ 625 blocks, a total of 100 effective white blocks are found, and 80 white blocks inside represent the color temperature of about 4500, and then the current color temperature is substantially 4500.
Of course, the skilled person can select other ways to determine the color temperature of the acquired preview image according to the actual requirement, which is not limited by the present invention.
after the color temperature of the preview image is obtained through calculation, the mobile terminal can determine the fill-in light intensity according to the color temperature of the preview image.
In a preferred embodiment of the present invention, step 205 may comprise the following sub-steps:
inquiring a preset color temperature list according to the color temperature range of the color temperature of the preview image, and determining a light supplement grade corresponding to the color temperature of the preview image; and determining the fill light intensity corresponding to the fill light grade.
In the embodiment of the invention, a color temperature list can be preset in the mobile terminal, and then the color temperature range of the preview image is inquired in the color temperature list, so that the light supplement grade corresponding to the color temperature is determined.
Meanwhile, each light supplement grade has corresponding light supplement intensity, and when the mobile terminal takes the light supplement grade as the light supplement grade corresponding to the color temperature of the preview image, the light supplement intensity of the color temperature of the preview image is correspondingly determined.
As an example, the color temperature list may include a correspondence relationship between one or more color temperature ranges and fill light levels, and the correspondence relationship may be that one or more color temperature ranges correspond to one fill light level, as shown in table 1.
TABLE 1
For example, when the color temperature of the obtained preview image is a2, since a2 is in the range of a1-a5 and is matched with the color temperature range a1-a5 in table 1, the fill-in light level a corresponding to the color temperature range a1-a5 can be used as the fill-in light level corresponding to the color temperature a2 of the preview image.
It should be noted that A, B, a1 and the like used in table 1 are not actual data, and in the embodiment of the present invention, only the corresponding relationship between the color temperature and the fill light level in the color temperature list is described through table 1, and a person skilled in the art may set any color temperature list according to actual requirements as long as a corresponding fill light level can be obtained through the color temperature.
the mobile terminal can control the light supplement lamp to work under the light supplement intensity, and under the irradiation of the light supplement lamp, the light supplement operation is carried out on the current shooting environment according to the light supplement intensity, and then the image can be shot according to the operation of the user.
Specifically, after the light supplement intensity is determined, the mobile terminal can supplement light to the current shooting environment according to the light supplement intensity, after the light supplement, a user can press a shooting key, the mobile terminal detects the operation, and the camera is controlled to shoot images of the shooting environment after the light supplement.
It should be noted that, in the automatic supplementary lighting mode, the mobile terminal may acquire a new preview image at regular time (for example, 1 second) to obtain a new supplementary lighting intensity, and perform a supplementary lighting operation according to the new supplementary lighting intensity, so that the supplementary lighting intensity may be adjusted along with the change of the environment.
For example, for two cases, that is, taking a self-timer picture with a mobile phone held by a user and taking a self-timer picture with a self-timer stick, the distance difference and variation of the camera from the person are large. Under the condition that a user holds a mobile phone for self-shooting, because the shooting distance is short, after the mobile terminal collects preview images, light supplement can be carried out by adopting relatively weak light supplement intensity. Under the user adopts the condition of autodyne from the rapping bar, because the distance of shooing is far away, after mobile terminal gathered the preview image, can adopt to correspond stronger light filling intensity and carry out the light filling.
In a preferred embodiment of the present invention, step 206 may comprise the following sub-steps:
a substep S11, determining a fill-in current corresponding to the fill-in intensity according to a preset correspondence between the fill-in intensity and the fill-in current;
since the corresponding relationship between the light supplement intensity and the light supplement current is preset in the embodiment of the invention, the mobile terminal can determine the corresponding light supplement current according to the light supplement intensity.
And a substep S12, controlling a light supplement lamp to work under the light supplement current, and shooting an image under the irradiation of the light supplement lamp.
After the light supplement current is determined, the mobile terminal can control the light supplement lamp to work under the light supplement current, and images are shot through irradiation of the light supplement lamp, so that a better shooting effect is achieved.
In the embodiment of the invention, the camera is started to collect the preview image, the color temperature of the preview image is calculated, the light supplement intensity is determined according to the color temperature of the preview image, the light supplement lamp is controlled to work under the light supplement intensity, and the image is shot under the irradiation of the light supplement lamp, so that the light supplement brightness can be adjusted according to the requirement of the current shooting environment in the shooting process, the shooting requirement of a user is met, and better shooting experience is brought to the user.
EXAMPLE III
Referring to fig. 3, a flowchart illustrating steps of a method for image capturing according to a third embodiment of the present invention is shown, and specifically, the method may include the following steps:
in a preferred embodiment of the present invention, the camera may comprise a front camera.
302, displaying options of an automatic supplementary lighting mode and/or a manual supplementary lighting mode in the preview image interface;
in a specific implementation, when the automatic light supplement mode and/or the manual light supplement mode option is displayed in a function button mode, a user clicks a function button representing the manual light supplement mode option, the mobile terminal detects the operation, and can determine that the user selects the manual light supplement mode, and then the mobile terminal enters the manual light supplement mode.
304, displaying a preset supplementary lighting grade list in the manual supplementary lighting mode;
in the implementation of the present invention, a supplementary lighting level list may be preset in the mobile terminal, and the supplementary lighting level list may include one or more supplementary lighting levels.
After entering the manual light supplement mode, the mobile terminal may display a preset light supplement level list to the user.
In a preferred embodiment of the present invention, step 304 may comprise the steps of:
and displaying the supplementary lighting grade list in a progress bar form in the preview image interface.
Specifically, after entering the preview image interface, the mobile terminal may show the fill-in light level in the preview image interface in the form of a progress bar.
In a preferred embodiment of the present invention, step 304 may further include the following steps:
and displaying the real-time light supplement grade of the current shooting environment in the progress bar.
Specifically, the mobile terminal can also display the light supplement grade of the current shooting environment in the progress bar, and the light supplement grade of the current shooting environment can be selected by a user last time or preset by the system after entering a manual light supplement mode.
As an example, the mobile terminal may display the fill light level in a progress bar form as shown in fig. 4.
when the user selects one supplementary lighting level from the displayed supplementary lighting level list, the mobile terminal can detect the operation and obtain the supplementary lighting level selected by the user.
specifically, the mobile terminal may use the light supplement level selected by the user as the light supplement level corresponding to the current shooting environment, and perform the light supplement operation on the current environment by using the light supplement level.
And 307, performing light supplement on the current shooting environment at the light supplement level, and shooting a target image.
In a preferred embodiment of the present invention, step 307 may comprise the following sub-steps:
a substep S21, determining fill light intensity corresponding to the fill light level;
a substep S22, performing supplementary lighting on the current shooting environment according to the supplementary lighting intensity;
and a substep S23, shooting the shooting environment after the light supplement to obtain a target image.
It should be noted that, for simplicity of description, the method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the present invention is not limited by the illustrated order of acts, as some steps may occur in other orders or concurrently in accordance with the embodiments of the present invention. Further, those skilled in the art will appreciate that the embodiments described in the specification are presently preferred and that no particular act is required to implement the invention.
Example four
Referring to fig. 5, a block diagram of a mobile terminal according to an embodiment of the present invention is shown, which may specifically include the following modules:
a camera opening module 501 for opening a camera;
a color temperature calculation module 502, configured to collect a preview image through the camera, and calculate a color temperature of the preview image;
a supplementary lighting intensity determining module 503, configured to determine a supplementary lighting intensity according to the color temperature of the preview image;
and the image shooting module 504 is used for controlling a light supplement lamp to work under the light supplement intensity and shooting an image under the irradiation of the light supplement lamp.
In a preferred embodiment of the present invention, the mobile terminal may further include the following modules:
the preview image interface entering module is used for entering a preview image interface;
the option display module is used for displaying an automatic light supplement mode option in the preview image interface;
accordingly, as shown in fig. 5a, the color temperature calculation module 502 may include the following sub-modules:
and the color temperature calculation submodule 5021 of the automatic supplementary lighting mode is used for collecting a preview image through the camera and calculating the color temperature of the preview image when the situation that the user selects the option of the automatic supplementary lighting mode is detected.
In a preferred embodiment of the present invention, referring to a block diagram of the fill-in light intensity determining module 503 shown in fig. 5b, the fill-in light intensity determining module 503 may include the following sub-modules:
a fill-in light level determining sub-module 5031, configured to match the color temperature of the preview image with a preset color temperature list, and determine a fill-in light level corresponding to the color temperature of the preview image, where the color temperature list includes one or more correspondence relationships between color temperatures and fill-in light levels;
a corresponding fill-in light intensity determining sub-module 5032, configured to determine a fill-in light intensity corresponding to the fill-in light level.
In a preferred embodiment of the present invention, referring to the block diagram of the image capturing module 504 shown in fig. 5c, the image capturing module 504 may include the following sub-modules:
a light supplement current determination sub-module 5041, configured to determine, according to a preset correspondence between light supplement intensity and light supplement current, a light supplement current corresponding to the light supplement intensity;
and the light supplement image shooting sub-module 5042 is used for controlling the light supplement lamp to work under the light supplement current and shooting images under the irradiation of the light supplement lamp.
In a preferred embodiment of the present invention, the camera comprises a front camera.
In the embodiment of the invention, the camera is started to collect the preview image, the color temperature of the preview image is calculated, the light supplement intensity is determined according to the color temperature of the preview image, the light supplement lamp is controlled to work under the light supplement intensity, and the image is shot under the irradiation of the light supplement lamp, so that the light supplement brightness can be adjusted according to the requirement of the current shooting environment in the shooting process, the shooting requirement of a user is met, and better shooting experience is brought to the user.
EXAMPLE five
Fig. 6 is a block diagram of a mobile terminal 1000 according to a fifth embodiment of the present invention.
Referring to fig. 6, the mobile terminal 1000 includes: at least one processor 1001, memory 1002, at least one network interface 1004 and user interface 1003, a camera component 1006. Various components in mobile terminal 1000 are coupled together by a bus system 1005. It is understood that bus system 1005 is used to enable communications among the components connected. The bus system 1005 includes a power bus, a control bus, and a status signal bus, in addition to a data bus. But for the sake of clarity the various busses are labeled in fig. 6 as the bus system 1005.
The user interface 1003 may include a display, a keyboard, or a pointing device (e.g., a mouse, trackball, touch pad, or touch screen, among others.
It is to be understood that the memory 1002 in embodiments of the present invention may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The non-volatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. The volatile Memory may be a Random Access Memory (RAM) which functions as an external cache. By way of illustration and not limitation, many forms of RAM are available, such as Static random access memory (Static RAM, SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic random access memory (Synchronous DRAM, SDRAM), Double Data Rate Synchronous Dynamic random access memory (ddr Data Rate SDRAM, ddr SDRAM), Enhanced Synchronous SDRAM (ESDRAM), Synchlink DRAM (SLDRAM), and Direct Rambus RAM (DRRAM). The memory 1002 of the subject systems and methods is intended to comprise, without being limited to, these and any other suitable types of memory.
In some embodiments, memory 1002 stores the following elements, executable modules or data structures, or a subset thereof, or an expanded set thereof: an operating system 10021 and applications 10022.
The operating system 10021 includes various system programs, such as a framework layer, a core library layer, a driver layer, and the like, and is used for implementing various basic services and processing hardware-based tasks. The application program 10022 includes various application programs, such as a camera application program, a Media Player (Media Player), a Browser (Browser), and the like, and is used to implement various application services. The program implementing the method according to the embodiment of the present invention may be included in the application program 10022.
The photographing assembly 1006 includes a front camera 10061.
In the embodiment of the present invention, the processor 1001 is configured to turn on the camera by calling a program or an instruction stored in the memory 1002, specifically, a program or an instruction stored in the application program 10022; acquiring a preview image through the camera, and calculating the color temperature of the preview image; determining the light supplement intensity according to the color temperature of the preview image; and controlling a light supplement lamp to work under the light supplement intensity, and shooting an image under the irradiation of the light supplement lamp.
The method disclosed by the embodiment of the invention can be applied to the processor 1001 or can be implemented by the processor 1001. The processor 1001 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be implemented by integrated logic circuits of hardware or instructions in the form of software in the processor 1001. The Processor 1001 may be a general-purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable gate array (FPGA) or other Programmable logic device, discrete gate or transistor logic device, or discrete hardware components. The various methods, steps and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in the memory 1002, and the processor 1001 reads the information in the memory 1002 and performs the steps of the method in combination with the hardware.
It is to be understood that the embodiments described herein may be implemented in hardware, software, firmware, middleware, microcode, or any combination thereof. For a hardware implementation, the Processing unit may be implemented in at least one Application Specific Integrated Circuit (ASIC), a Digital Signal Processor (DSP), a Digital Signal Processing Device (DSPD), a Programmable Logic Device (PLD), a Field Programmable Gate Array (FPGA), a general purpose processor, a controller, a microcontroller, a microprocessor, other electronic units for performing the functions described herein, or a combination thereof.
For a software implementation, the techniques described in this disclosure may be implemented with modules (e.g., procedures, functions, and so on) that perform the functions described in this disclosure. The software codes may be stored in a memory and executed by a processor. The memory may be implemented within the processor or external to the processor.
Optionally, the processor 1001 is further configured to: entering a preview image interface; and displaying an automatic supplementary lighting mode option in the preview image interface.
Optionally, when executing the acquiring of the preview image by the camera and calculating the color temperature of the preview image, the processor 1001 is further configured to: and when the user is detected to select the automatic light supplement mode option, acquiring a preview image through the camera, and calculating the color temperature of the preview image.
Optionally, when the step of determining the fill-in light intensity according to the color temperature of the preview image is executed by the processor 1001, the processor is further configured to: and inquiring a preset color temperature list according to the color temperature range where the color temperature of the preview image is located, and determining a light supplement grade corresponding to the color temperature of the preview image, wherein the color temperature list comprises one or more corresponding relations between the color temperature range and the light supplement grade.
Optionally, when the step of controlling the fill-in light to operate at the fill-in light intensity and shooting an image under the irradiation of the fill-in light is performed, the processor 1001 is further configured to: determining a light supplement current corresponding to the light supplement intensity according to a preset corresponding relation between the light supplement intensity and the light supplement current; and controlling a light supplement lamp to work under the light supplement current, and shooting an image under the irradiation of the light supplement lamp.
Optionally, the camera comprises a front camera.
The mobile terminal 1000 can implement the processes implemented by the mobile terminal in the foregoing embodiments, and details are not repeated here to avoid repetition.
According to the mobile terminal 1000 in the embodiment of the invention, the camera is started to collect the preview image, the color temperature of the preview image is calculated, the light supplement intensity is determined according to the color temperature of the preview image, the light supplement lamp is controlled to work under the light supplement intensity, and the image is shot under the irradiation of the light supplement lamp, so that the light supplement brightness can be adjusted according to the requirement of the current shooting environment in the shooting process, the shooting requirement of a user is met, and better shooting experience is brought to the user.
EXAMPLE six
Fig. 7 is a schematic structural diagram of a mobile terminal 1100 according to a sixth embodiment of the present invention. Specifically, the mobile terminal 1100 of fig. 7 may be a mobile phone, a tablet computer, a Personal Digital Assistant (PDA), or a vehicle-mounted computer.
The mobile terminal 1100 of fig. 7 includes a Radio Frequency (RF) circuit 1101, a memory 1102, an input unit 1103, a display unit 1104, a processor 1105, an audio circuit 1107, a wifi (wireless fidelity) module 1108, a power supply 1109, and a photographing component 1105.
The input unit 1103 may be used, among other things, to receive numeric or character information input by a user and to generate signal inputs related to user settings and function control of the mobile terminal 1100. Specifically, in the embodiment of the present invention, the input unit 1103 may include a touch panel 11031. The touch panel 11031, also referred to as a touch screen, may collect touch operations of a user (e.g., operations of the user on the touch panel 11031 using any suitable object or accessory such as a finger, a stylus, etc.) thereon or nearby, and drive corresponding connection devices according to a preset program. Alternatively, the touch panel 11031 may include two portions of a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts it to touch point coordinates, and sends the touch point coordinates to the processor 1106, where it can receive and execute commands from the processor 1106. In addition, the touch panel 11031 may be implemented by various types, such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. In addition to the touch panel 11031, the input unit 1103 may also include other input devices 11032, and the other input devices 11032 may include, but are not limited to, one or more of a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and the like.
Among other things, the display unit 1104 may be used to display information input by or provided to the user and various menu interfaces of the mobile terminal 1100. The display unit 1104 may include a display panel 11041, and optionally, the display panel 11041 may be configured in the form of an LCD or an Organic Light-Emitting Diode (OLED), or the like.
It should be noted that the touch panel 11031 may overlay the display panel 11041 to form a touch display screen, and when the touch display screen detects a touch operation thereon or nearby, the touch display screen is transmitted to the processor 1106 to determine the type of the touch event, and then the processor 1106 provides a corresponding visual output on the touch display screen according to the type of the touch event.
The touch display screen comprises an application program interface display area and a common control display area. The arrangement modes of the application program interface display area and the common control display area are not limited, and can be an arrangement mode which can distinguish two display areas, such as vertical arrangement, left-right arrangement and the like. The application interface display area may be used to display an interface of an application. Each interface may contain at least one interface element such as an icon and/or widget desktop control for an application. The application interface display area may also be an empty interface that does not contain any content. The common control display area is used for displaying controls with high utilization rate, such as application icons like setting buttons, interface numbers, scroll bars, phone book icons and the like.
The capture assembly 1105 includes a front facing camera 11051.
The processor 1106 is a control center of the mobile terminal 1100, connects various parts of the entire mobile phone using various interfaces and lines, and performs various functions of the mobile terminal 1100 and processes data by operating or executing software programs and/or modules stored in the first memory 11021 and calling data stored in the second memory 11022, thereby integrally monitoring the mobile terminal 1100. Optionally, processor 1106 may include at least one processing unit.
In the embodiment of the present invention, the processor 1106 is configured to turn on the camera by calling the software programs and/or modules stored in the first memory 11021 and/or the data stored in the second memory 11022; acquiring a preview image through the camera, and calculating the color temperature of the preview image; determining the light supplement intensity according to the color temperature of the preview image; and controlling a light supplement lamp to work under the light supplement intensity, and shooting an image under the irradiation of the light supplement lamp.
Optionally, the processor 1106 is further configured to: entering a preview image interface; and displaying an automatic supplementary lighting mode option in the preview image interface.
Optionally, the processor 1106, when executing the acquiring of the preview image by the camera and calculating the color temperature of the preview image, is further configured to: and when the user is detected to select the automatic light supplement mode option, acquiring a preview image through the camera, and calculating the color temperature of the preview image.
Optionally, when the step of determining the fill-in light intensity according to the color temperature of the preview image is executed by the processor 1106, the processor is further configured to: and inquiring a preset color temperature list according to the color temperature range where the color temperature of the preview image is located, and determining a light supplement grade corresponding to the color temperature of the preview image, wherein the color temperature list comprises one or more corresponding relations between the color temperature range and the light supplement grade.
Optionally, when the step of controlling the fill-in light to operate at the fill-in light intensity and shooting an image under the irradiation of the fill-in light by the processor 1106 is executed, the processor is further configured to: determining a light supplement current corresponding to the light supplement intensity according to a preset corresponding relation between the light supplement intensity and the light supplement current; and controlling a light supplement lamp to work under the light supplement current, and shooting an image under the irradiation of the light supplement lamp.
Optionally, the camera comprises a front camera.
The mobile terminal 1100 is capable of implementing each process implemented by the mobile terminal in the foregoing embodiments, and details are not repeated here to avoid repetition.
Therefore, the mobile terminal 1100 in the embodiment of the present invention, by turning on the camera, acquiring the preview image, calculating the color temperature of the preview image, determining the fill-in light intensity according to the color temperature of the preview image, controlling the fill-in light to operate at the fill-in light intensity, and shooting the image under the irradiation of the fill-in light, realizes the adjustment of the fill-in light brightness according to the requirements of the current shooting environment in the shooting process, meets the shooting requirements of the user, and brings better shooting experience to the user.
For the embodiment of the mobile terminal, since it is basically similar to the embodiment of the method, the description is relatively simple, and for relevant points, reference may be made to part of the description of the embodiment of the method.
The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, apparatus, or computer program product. Accordingly, embodiments of the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, embodiments of the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
Embodiments of the present invention are described with reference to flowchart illustrations and/or block diagrams of methods, terminal devices (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing terminal to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing terminal, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing terminal to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing terminal to cause a series of operational steps to be performed on the computer or other programmable terminal to produce a computer implemented process such that the instructions which execute on the computer or other programmable terminal provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the embodiments of the invention.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or terminal that comprises the element.
The method for image capturing and the mobile terminal provided by the invention are described in detail, and the principle and the implementation mode of the invention are explained by applying specific examples in the text, and the description of the embodiments is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (6)
1. A method of image capture, the method comprising:
starting a camera;
acquiring a preview image through the camera, and calculating the color temperature of the preview image;
determining the light supplement intensity according to the color temperature of the preview image;
controlling a light supplement lamp to work under the light supplement intensity, and shooting an image under the irradiation of the light supplement lamp;
the control light filling lamp works under the light filling intensity, and under the irradiation of the light filling lamp, the step of shooting images comprises the following steps:
determining a light supplement current corresponding to the light supplement intensity according to a preset corresponding relation between the light supplement intensity and the light supplement current;
controlling a light supplement lamp to work under the light supplement current, and shooting an image under the irradiation of the light supplement lamp;
the method further comprises the following steps:
entering a preview image interface;
displaying options of an automatic supplementary lighting mode and/or a manual supplementary lighting mode in the preview image interface;
entering a manual light supplement mode when detecting that the user selects the manual light supplement mode option;
displaying a preset supplementary lighting grade list in the manual supplementary lighting mode;
detecting a light supplement grade selected by a user in the light supplement grade list;
taking the selected light supplement grade as a light supplement grade corresponding to the current shooting environment;
supplementing light to the current shooting environment at the supplementary light level, and shooting a target image;
wherein, the step of determining the fill-in light intensity according to the color temperature of the preview image comprises:
inquiring a preset color temperature list according to the color temperature range of the color temperature of the preview image, and determining a light supplement grade corresponding to the color temperature of the preview image, wherein the color temperature list comprises one or more corresponding relations between the color temperature range and the light supplement grade;
determining the light supplement intensity corresponding to the light supplement grade;
and in the automatic supplementary lighting mode, the mobile terminal acquires a frame of new preview image at regular time to obtain new supplementary lighting intensity, and supplementary lighting operation is carried out according to the new supplementary lighting intensity.
2. The method of claim 1, wherein before the step of capturing a preview image by the camera and calculating the color temperature of the preview image, further comprising:
entering a preview image interface;
displaying an automatic light supplementing mode option in the preview image interface;
the collecting of the preview image through the camera and the calculation of the color temperature of the preview image comprise:
and when the user is detected to select the automatic light supplement mode option, acquiring a preview image through the camera, and calculating the color temperature of the preview image.
3. The method of claim 1, wherein the camera comprises a front facing camera.
4. A mobile terminal for image photographing, the mobile terminal comprising:
the camera opening module is used for opening the camera;
the color temperature calculation module is used for acquiring a preview image through the camera and calculating the color temperature of the preview image;
the light supplement intensity determination module is used for determining light supplement intensity according to the color temperature of the preview image;
the image shooting module is used for controlling the light supplement lamp to work under the light supplement intensity and shooting images under the irradiation of the light supplement lamp;
wherein the image photographing module includes:
the light supplement current determination submodule is used for determining light supplement current corresponding to the light supplement intensity according to a preset corresponding relation between the light supplement intensity and the light supplement current;
the light supplement image shooting submodule is used for controlling a light supplement lamp to work under the light supplement current and shooting an image under the irradiation of the light supplement lamp;
the mobile terminal is further configured to:
entering a preview image interface;
displaying options of an automatic supplementary lighting mode and/or a manual supplementary lighting mode in the preview image interface;
entering a manual light supplement mode when detecting that the user selects the manual light supplement mode option;
entering a manual light supplement mode when detecting that the user selects the manual light supplement mode option;
displaying a preset supplementary lighting grade list in the manual supplementary lighting mode;
detecting a light supplement grade selected by a user in the light supplement grade list;
taking the selected light supplement grade as a light supplement grade corresponding to the current shooting environment;
supplementing light to the current shooting environment at the supplementary light level, and shooting a target image;
wherein, the light supplement intensity determination module comprises:
the light supplement grade determining submodule is used for inquiring a preset color temperature list according to the color temperature range where the color temperature of the preview image is located, and determining the light supplement grade corresponding to the color temperature of the preview image, wherein the color temperature list comprises one or more corresponding relations between the color temperature range and the light supplement grade;
a corresponding fill-in light intensity determination sub-module, configured to determine a fill-in light intensity corresponding to the fill-in light level;
and in the automatic supplementary lighting mode, the mobile terminal acquires a frame of new preview image at regular time to obtain new supplementary lighting intensity, and supplementary lighting operation is carried out according to the new supplementary lighting intensity.
5. The mobile terminal of claim 4, wherein the mobile terminal further comprises:
the preview image interface entering module is used for entering a preview image interface;
the option display module is used for displaying an automatic light supplement mode option in the preview image interface;
the color temperature calculation module includes:
and the automatic light supplementing mode color temperature calculation submodule is used for collecting a preview image through the camera and calculating the color temperature of the preview image when detecting that the user selects the automatic light supplementing mode option.
6. The mobile terminal of claim 4, wherein the camera comprises a front facing camera.
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| CN110166682A (en) * | 2018-02-11 | 2019-08-23 | 东斓视觉科技发展（北京）有限公司 | Intelligent photographic regulates and controls terminal, system and its shooting regulation method |
| CN110166699A (en) * | 2018-02-11 | 2019-08-23 | 东斓视觉科技发展（北京）有限公司 | Intelligent photographic regulates and controls terminal, system and its shooting regulation method |
| CN110933302B (en) * | 2019-11-27 | 2021-06-25 | 维沃移动通信有限公司 | Shooting method and electronic equipment |
| CN111432135B (en) * | 2020-03-31 | 2022-03-22 | 北京嘀嘀无限科技发展有限公司 | Monitoring device, method, apparatus and storage medium |
| CN116405783A (en) * | 2020-07-31 | 2023-07-07 | 华为技术有限公司 | Shooting light supplementing method and related device |
| CN111970458B (en) * | 2020-08-10 | 2022-03-18 | 珠海格力电器股份有限公司 | Mobile terminal and photographing light supplementing method |
| CN112702508A (en) * | 2020-12-04 | 2021-04-23 | 珠海格力电器股份有限公司 | Camera position indication method and device, mobile terminal and storage medium |
| CN113691736A (en) * | 2021-06-29 | 2021-11-23 | 展讯通信（深圳）有限公司 | Light supplement control method, light supplement control system, terminal and light supplement lamp |
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Effective date of registration: 20211206 Address after: 311121 Room 305, Building 20, Longquan Road, Cangqian Street, Yuhang District, Hangzhou City, Zhejiang Province Patentee after: VIVO MOBILE COMMUNICATION (HANGZHOU) Co.,Ltd. Address before: 523860 No. 283 BBK Avenue, Changan Town, Changan, Guangdong. Patentee before: VIVO MOBILE COMMUNICATION Co.,Ltd. |