WO2017096795A1 - 前置摄像头亮度补偿方法和装置及移动终端 - Google Patents

前置摄像头亮度补偿方法和装置及移动终端 Download PDF

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Publication number
WO2017096795A1
WO2017096795A1 PCT/CN2016/088336 CN2016088336W WO2017096795A1 WO 2017096795 A1 WO2017096795 A1 WO 2017096795A1 CN 2016088336 W CN2016088336 W CN 2016088336W WO 2017096795 A1 WO2017096795 A1 WO 2017096795A1
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Prior art keywords
brightness
compensation
screen
flash
less
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PCT/CN2016/088336
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English (en)
French (fr)
Inventor
王振宇
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Le Holdings Beijing Co Ltd
Lemobile Information Technology (Beijing) Co Ltd
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Le Holdings Beijing Co Ltd
Lemobile Information Technology (Beijing) Co Ltd
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Priority to US15/244,951 priority Critical patent/US20170171445A1/en
Publication of WO2017096795A1 publication Critical patent/WO2017096795A1/zh
Anticipated expiration legal-status Critical
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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
    • H04N23/56—Cameras or camera modules comprising electronic image sensors; Control thereof provided with illuminating means
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules
    • H04N23/63—Control of cameras or camera modules by using electronic viewfinders
    • 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
    • H04N23/71—Circuitry for evaluating the brightness variation
    • 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

Definitions

  • the present invention relates to the field of camera photography of a mobile terminal device, and in particular, to a method for compensating a brightness of a front camera and a mobile terminal using the same.
  • a mobile phone with a front flash is disclosed in the Chinese patent document CN202856820U, which includes a face shell, a bottom case and a battery cover, and a motherboard component is fixedly mounted between the face shell and the bottom case.
  • a front camera and a front flash are disposed on a side of the motherboard component facing the face shell, and the front camera is soldered by FPC On the main board assembly, the front flash patch is soldered on the main board assembly, the side of the main board assembly facing the bottom case is provided with a rear camera and a rear flash, and the rear camera is fixed by the FPC plug in the On the motherboard component.
  • the mobile phone in the scheme has a front camera and a rear camera, and the front flash can be turned on during self-timer, video call, etc. to ensure the shooting effect.
  • the front camera is too bright, it will cause damage to the user's eyes. If the brightness is not enough, the desired shooting effect cannot be achieved.
  • the brightness of the environment required by the user using the mobile phone is different, the brightness of the required compensation is also different, and the flash of the fixed brightness cannot satisfy the requirement.
  • the technical problem to be solved by the present invention is to overcome the drawback that the front flash of the prior art mobile phone cannot meet the requirements of the user environment change.
  • the invention provides a front camera brightness compensation method, comprising the following steps:
  • the compensation brightness is not less than the screen brightness compensation extreme value
  • the compensation is determined Whether the brightness is less than a sum of the front flash compensation extreme value and the screen brightness compensation extreme value; if less, the front flash and the screen are simultaneously turned on, so that the sum of the brightness of the front flash and the screen brightness is equal to The compensation brightness.
  • the compensation brightness is not less than the sum of the front flash compensation extreme value and the screen brightness compensation extreme value, the front flash and the screen are simultaneously turned on, and the brightness of the flash and the screen are both Adjust to the maximum value.
  • the front flash and the screen are simultaneously turned on, such that the sum of the brightness of the front flash and the brightness of the screen is equal to the compensated brightness, and the brightness of the front flash is adjusted to a maximum value, The screen brightness is adjusted to a difference between the maximum value and the compensated brightness.
  • the method further comprises adjusting a color of the screen display according to a color of the environment when the screen is turned on.
  • the present invention also provides a mobile terminal having a front camera brightness compensation function, comprising a snap-fitted face shell and a rear case, wherein a terminal controller is disposed in a cavity formed by the face shell and the rear case, a casing and a front camera are disposed on the casing, and at least one front flash is further disposed on the casing, the brightness of the front flash can be adjusted, and the terminal controller is configured to control the front flash and the The brightness of the screen.
  • the front flash is plural.
  • the invention also provides a front camera brightness compensation device, comprising:
  • An ambient brightness obtaining unit configured to acquire brightness of a current environment
  • a first determining unit configured to determine whether the brightness is less than a light compensation on threshold
  • a compensation brightness calculation unit configured to calculate a compensation brightness when the brightness is less than a light compensation on threshold
  • a second determining unit configured to determine whether the compensated brightness is less than a screen brightness compensation extreme value
  • the screen compensation unit is configured to turn on the screen and adjust the brightness thereof to the compensation brightness when the compensation brightness is less than the screen brightness compensation extreme value.
  • the third determining unit is configured to determine, when the compensation brightness is not less than the screen brightness compensation extreme value, whether the compensation brightness is greater than a front flash compensation extreme value;
  • the front flash compensation unit is configured to turn on the front flash and adjust the brightness thereof to the compensated brightness when the compensated brightness is not greater than the front flash compensation limit.
  • the present invention also provides a front camera brightness compensation device comprising: one or more processors; a memory; one or more programs, the one or more programs being stored in the memory when When one or more processors are executing, do the following:
  • the device wherein the compensation brightness is not less than the screen brightness compensation extreme value, determining whether the compensation brightness is greater than a front flash compensation extreme value, if not greater than the front position
  • the flash is turned on and its brightness is adjusted to the compensated brightness.
  • the method and device for pre-camera brightness compensation provided by the present invention, the method comprising: first obtaining the brightness of the current environment; then determining whether the brightness is less than a light compensation on threshold, and if so, calculating the compensation brightness; determining whether the compensation brightness is less than
  • the screen brightness compensates for the extreme value, if it is less than the screen will be turned on and its brightness adjusted to the compensated brightness.
  • the screen is used for brightness compensation.
  • the screen is used for compensation, which can reduce the number of times the front flash is turned on, prolong its service life, and also meet the requirements of photographing. Better self-timer shooting.
  • the method and device for pre-camera brightness compensation provided by the present invention, when the compensation brightness is not less than the brightness limit value of the screen, determining whether the compensation brightness is greater than a front flash compensation extreme value, if not greater than The front flash is turned on and its brightness is adjusted to the compensated brightness.
  • the front flash is used for light compensation and passed. Adjusting the brightness of the front flash to achieve the desired compensation brightness is better than the current use of a single brightness front-end flash, and more energy efficient.
  • the method and device for pre-camera brightness compensation provided by the present invention can be used simultaneously to meet the required compensation requirements when the screen or the front flash is used alone, and can meet the required compensation requirements to the greatest extent.
  • the brightness is compensated for better shooting under adverse shooting conditions.
  • the method and device for pre-camera brightness compensation provided by the present invention can also adjust the color of the screen display according to the color of the environment, so that the brightness compensation can better combine the environment color, and the compensation effect is better. Background brightness and color are better integrated.
  • FIG. 1 is a flowchart of a method for compensating a brightness of a front camera according to Embodiment 1 of the present invention
  • FIG. 2 is a structural block diagram of a mobile phone with a front camera brightness compensation function according to Embodiment 2 of the present invention
  • FIG. 3 is a structural block diagram of a front camera brightness compensation device according to Embodiment 3 of the present invention.
  • FIG. 4 is a structural block diagram of a front camera brightness compensation device having a processor in Embodiment 4 of the present invention
  • FIG. 5 is a structural block diagram of a front camera brightness compensation apparatus having two processors in Embodiment 4 of the present invention.
  • connection or integral connection; may be mechanical connection or electrical connection; may be directly connected, may also be indirectly connected through an intermediate medium, or may be internal communication of two components, may be wireless connection, or may be wired connection.
  • connection or integral connection; may be mechanical connection or electrical connection; may be directly connected, may also be indirectly connected through an intermediate medium, or may be internal communication of two components, may be wireless connection, or may be wired connection.
  • a front camera brightness compensation method which can be used in a mobile terminal such as a mobile phone or an ipad to perform brightness compensation on a front camera during shooting or recording.
  • the method includes the following steps:
  • the current ambient brightness can be obtained by means of a built-in light sensor or the like during shooting so that the current ambient brightness can be obtained.
  • S2 determining whether the brightness is less than a light compensation on threshold, and if it is less than, calculating a compensation brightness; if not less, the light compensation is not needed, and the direct shooting is performed.
  • the light compensation After the current ambient brightness is obtained, the light compensation has a threshold according to the brightness requirement required by the selected shooting mode. When the brightness is greater than the threshold, no brightness compensation is needed, and the photo can be taken directly, but when the brightness is less than the threshold, Then you need to compensate. Therefore, it is necessary to first determine whether the current ambient brightness is less than the light compensation on threshold. When it is less than, the compensation brightness can be calculated, and the compensation brightness is the brightness required for shooting minus the current ambient brightness, and the brightness required for shooting is according to shooting.
  • the mode is different and is preset.
  • S3. Determine whether the compensated brightness is less than a screen brightness compensation extreme value. At this time, screen compensation is preferred, and when the screen can satisfy the compensation brightness, the screen is used. When it is less than, S4 is executed, and when it is not less than S5.
  • the screen is used for brightness compensation.
  • the screen satisfies the brightness required for compensation
  • the screen is used for compensation, which can reduce the number of times the front flash is turned on, prolong its service life, and also meet the requirements of photographing. Better self-timer shooting.
  • step S5 when the compensation brightness is not less than the screen brightness compensation extreme value, if the requirement cannot be met by the screen compensation, it is determined whether the compensation brightness is greater than the front position.
  • the flash compensation extreme value if not greater, step S6 is performed, and if it is greater than, step S7 is performed.
  • the screen does not meet the brightness compensation requirements and the flash can meet the compensation requirements, use the front flash to compensate for the light and adjust the brightness of the front flash to achieve the desired compensation brightness, such as controlling the front flash.
  • the magnitude of the current allows the front flash to achieve the desired brightness, which is more responsive to current shooting requirements and more energy efficient than using a single brightness front flash.
  • step S7 when the compensation brightness is greater than the front flash compensation extreme value, it is determined whether the compensation brightness is less than the sum of the front flash compensation extreme value and the screen brightness compensation extreme value, if not less, step S8 is performed, if not less than Then execute S9.
  • the color of the screen display is adjusted according to the color of the environment. It can make the brightness compensation better combined with the environment color, the compensation effect is better, and the background brightness and color fusion are better when shooting.
  • a mobile terminal having a front camera brightness compensation function is provided.
  • the mobile terminal may be a mobile phone, a tablet computer, an ipad, or the like.
  • the mobile terminal in this embodiment is a mobile phone, as shown in FIG. 2, including the fastening.
  • a face shell 1 and a rear case are provided, and a mobile phone controller 2 is disposed in a cavity formed by the face shell 1 and the rear case, and a screen 3 and a front camera 4 are disposed on the face shell 1 at the surface
  • the housing 1 is further provided with at least one front flash 5, the brightness of the front flash 5 can be adjusted, and the mobile phone controller 2 is configured to perform the front camera brightness compensating device described in Embodiment 1 to control the front The brightness of the flash 5 and the screen 3.
  • the front flash 5 may be provided in plurality, and the position may also be set as needed, such as being disposed beside the front camera 4, or disposed above, below or in the middle of the screen 3, in a specific implementation. You can choose according to your needs.
  • the mobile terminal can perform brightness compensation by adjusting the brightness of the screen 3 and the front flash 5 when shooting using the front camera 4, thereby improving the shooting effect.
  • the embodiment provides a front camera brightness compensation device, as shown in FIG. 3, including:
  • the ambient brightness obtaining unit 01 is configured to acquire the brightness of the current environment
  • the first determining unit 02 is configured to determine whether the brightness is less than a light compensation on threshold
  • the compensation brightness calculation unit 03 is configured to calculate the compensation brightness when the brightness is less than the light compensation on threshold
  • a second determining unit 04 configured to determine whether the compensated brightness is less than a screen brightness compensation extreme value
  • the screen compensation unit 05 is configured to turn on the screen and adjust the brightness thereof to the compensation brightness when the compensation brightness is less than the screen brightness compensation extreme value.
  • the method further includes:
  • a third determining unit configured to determine whether the compensated brightness is greater than a front flash compensation extreme value when the compensated brightness is not less than the screen brightness compensation extreme value
  • the front flash compensation unit is configured to turn on the front flash and adjust the brightness thereof to the compensated brightness when the compensated brightness is not greater than the front flash compensation limit.
  • the fourth determining unit is configured to: when the compensation brightness is greater than the front flash compensation extreme value, determine whether the compensation brightness is less than a sum of the front flash compensation extreme value and the screen brightness compensation extreme value;
  • the compensation brightness is less than the front flash compensation extreme value and the screen
  • the front flash and the screen are simultaneously turned on, so that the sum of the brightness of the front flash and the brightness of the screen is equal to the compensated brightness.
  • a limit compensation unit when the compensation brightness is not less than a sum of the front flash compensation extreme value and the screen brightness compensation extreme value, simultaneously turning on the front flash and the screen, and the brightness of the flash and the screen are both Modulation maximum.
  • a color adjustment unit is further included, and when the screen is turned on, the color of the screen display is adjusted according to the color of the environment.
  • the front camera brightness compensation device in the scheme adjusts the brightness of the screen and the front flash to improve the shooting effect, and can be used for self-timer, video call, and the like.
  • the embodiment provides a front camera brightness compensation device, including: one or more processors 200; a memory 100; one or more programs, the one or more programs are stored in the memory 100, when When being executed by the one or more processors 200, the following operations are performed: obtaining brightness of the current environment; determining whether the brightness is less than a light compensation on threshold, and if so, calculating a compensation brightness; determining whether the compensation brightness is smaller than a screen brightness compensation The extreme value, if less than the screen, will turn the screen on and adjust its brightness to the compensated brightness.
  • a processor 200 may be included, and as shown in FIG. 5, two processors 200 may be included.
  • the compensation brightness is not less than the screen brightness compensation extreme value, determining whether the compensation brightness is greater than a front flash compensation extreme value, if not greater than the front flash Turn on and adjust its brightness to the compensated brightness.
  • embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the invention can 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, etc.) including computer usable program code.
  • computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device. Instructions are provided for implementation The steps of a function specified in a block or blocks of a flow or a flow and/or a block diagram of a flow chart.

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Abstract

本发明提供的前置摄像头亮度补偿方法及装置，该方法包括首先获取当前环境的亮度；然后判断所述亮度是否小于光线补偿开启阈值，若是则计算补偿亮度；判断所述补偿亮度是否小于屏幕亮度补偿极值，若小于则将开启所述屏幕并将其亮度调整至所述补偿亮度。该方案中，先单独使用屏幕或者前置闪光灯来补偿，当无法满足亮度补偿的要求时，可以同时使用，使其满足所需的补偿需求，能够最大程度的对当前的亮度进行补偿，使得在不利的拍摄条件下获得更好的拍摄效果。

Description

前置摄像头亮度补偿方法和装置及移动终端
本申请要求在2015年12月10日提交中国专利局、申请号为201510918322.9、发明名称为“前置摄像头亮度补偿方法和装置及移动终端”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及移动终端设备拍照领域，具体涉及一种前置摄像头亮度补偿方法及使用该方法的移动终端。
背景技术
随着技术的发展，电子产品越来越普及，电子产品的功能也越来越丰富。智能手机已经成为必备的电子产品之一，手机的功能也越来越多，已经取代了其他很多的消费电子产品，比如手机可以代替照相机、录像机，进行拍照和录像。随着手机的性能越来越高，手机上可使用的应用程序也越来越多，手机也具有了很多电脑的功能，可以进行图像处理等。为了获得更好的拍照效果，在光线昏暗的情况下，需要使用闪光灯来辅助摄像头拍摄。
目前，有一些手机上在后置摄像头处设置了闪光灯，用于后视摄像头拍照时使用。为了保证前置摄像头的拍摄效果，在中国专利文献CN202856820U中公开了一种具有前置闪光灯的手机，包括面壳、底壳和电池盖，所述面壳和底壳之间固定安装有主板组件，所述主板组件朝向面壳的一侧设置有前置摄像头和前置闪光灯，所述前置摄像头通过FPC焊接在 主板组件上，所述前置闪光灯贴片焊接在主板组件上，所述主板组件朝向底壳的一侧设置有后置摄像头和后置闪光灯，所述后置摄像头通过FPC排插固定在所述主板组件上。该方案中的手机，具有前置摄像头和后置摄像头，在进行自拍、视频通话等过程中都可以开启前置闪光灯，保证拍摄效果。但是，由于自拍、视频通话等过程中，用户与手机的距离近，前置摄像头如果太亮，则对用户的眼睛造成损害，如果亮度不够，则无法达到预期拍摄的效果。此外，由于用户使用手机的环境亮度不同，所需补偿的亮度也不同，固定亮度的闪光灯无法满足该要求。
发明内容
因此，本发明要解决的技术问题在于克服现有技术中的手机的前置闪光灯无法满足用户环境变化的需求的缺陷。
本发明提供一种前置摄像头亮度补偿方法，包括如下步骤：
获取当前环境的亮度；
判断所述亮度是否小于光线补偿开启阈值，若是则计算补偿亮度；
判断所述补偿亮度是否小于屏幕亮度补偿极值，若小于则将开启所述屏幕并将其亮度调整至所述补偿亮度。
优选地，所述补偿亮度不小于所述屏幕亮度补偿极值时，判断所述补偿亮度是否大于前置闪光灯补偿极值，若不大于则将所述前置闪光灯开启并将其亮度调整至所述补偿亮度。
优选地，若所述补偿亮度大于前置闪光灯补偿极值，将判断所述补偿 亮度是否小于所述前置闪光灯补偿极值与屏幕亮度补偿极值之和，若小于，则同时开启所述前置闪光灯和屏幕，使得所述前置闪光灯的亮度与所述屏幕亮度之和等于所述补偿亮度。
优选地，若所述补偿亮度不小于所述前置闪光灯补偿极值与屏幕亮度补偿极值之和时，则同时开启所述前置闪光灯和屏幕，将所述闪光灯和所述屏幕的亮度都调至最大值。
优选地，同时开启所述前置闪光灯和屏幕，使得所述前置闪光灯的亮度与所述屏幕亮度之和等于所述补偿亮度的步骤中，将所述前置闪光灯的亮度调整至最大值，将所述屏幕亮度调整至该最大值与所述补偿亮度的差值。
优选地，还包括开启所述屏幕时，根据所述环境的颜色调整所述屏幕显示的颜色。
本发明还提供一种具有前置摄像头亮度补偿功能的移动终端，包括扣合设置的面壳和后壳，在所述面壳和后壳形成的腔体内设置有终端控制器，在所述面壳上设置有屏幕和前置摄像头，在所述面壳上还设置有至少一个前置闪光灯，所述前置闪光灯的亮度能够调节，所述终端控制器用于控制所述前置闪光灯和所述屏幕的亮度。
优选地，所述前置闪光灯为多个。
本发明还提供一种前置摄像头亮度补偿装置，包括：
环境亮度获取单元，用于获取当前环境的亮度；
第一判断单元，用于判断所述亮度是否小于光线补偿开启阈值；
补偿亮度计算单元，用于当所述亮度小于光线补偿开启阈值时计算补偿亮度；
第二判断单元，用于判断所述补偿亮度是否小于屏幕亮度补偿极值；
屏幕补偿单元，用于所述补偿亮度小于屏幕亮度补偿极值时，开启所述屏幕并将其亮度调整至所述补偿亮度。
优选地，第三判断单元，用于所述补偿亮度不小于所述屏幕亮度补偿极值时，判断所述补偿亮度是否大于前置闪光灯补偿极值；
前置闪光灯补偿单元，用于所述补偿亮度不大于前置闪光灯补偿极值时，将所述前置闪光灯开启并将其亮度调整至所述补偿亮度。
本发明还提供了一种前置摄像头亮度补偿装置，包括：一个或者多个处理器；存储器；一个或者多个程序，所述一个或者多个程序存储在所述储器中，当被所述一个或者多个处理器执行时，进行如下操作：
获取当前环境的亮度；判断所述亮度是否小于光线补偿开启阈值，若是则计算补偿亮度；判断所述补偿亮度是否小于屏幕亮度补偿极值，若小于则将开启所述屏幕并将其亮度调整至所述补偿亮度。
所述的装置，其中，所述补偿亮度不小于所述屏幕亮度补偿极值时，判断所述补偿亮度是否大于前置闪光灯补偿极值，若不大于则将所述前置 闪光灯开启并将其亮度调整至所述补偿亮度。
本发明技术方案，具有如下优点：
1.本发明提供的前置摄像头亮度补偿方法及装置，该方法包括首先获取当前环境的亮度；然后判断所述亮度是否小于光线补偿开启阈值，若是则计算补偿亮度；判断所述补偿亮度是否小于屏幕亮度补偿极值，若小于则将开启所述屏幕并将其亮度调整至所述补偿亮度。该方法中，利用屏幕进行亮度补偿，当屏幕满足补偿所需的亮度时，优先使用屏幕进行补偿，可以减小前置闪光灯等开启次数，延长其使用寿命，同时也可以满足拍照的要求，获得更好的自拍拍摄效果。
2.本发明提供的前置摄像头亮度补偿方法及装置，所述补偿亮度不小于所述屏幕亮度补偿极值时，判断所述补偿亮度是否大于前置闪光灯补偿极值，若不大于则将所述前置闪光灯开启并将其亮度调整至所述补偿亮度，该方案中，如果屏幕无法满足亮度补偿的需求，而闪光灯可以满足该补偿的要求，则使用前置闪光灯来进行光线补偿，并通过调整前置闪光灯的亮度使其达到所需的补偿亮度，比使用单一亮度的前置闪光灯更能满足当前拍摄的要求，且更加节约能源。
3.本发明提供的前置摄像头亮度补偿方法及装置，当单独使用屏幕或者前置闪光灯无法满足亮度补偿的要求时，可以同时使用，使其满足所需的补偿需求，能够最大程度的对当前的亮度进行补偿，使得在不利的拍摄条件下获得更好的拍摄效果。
4.本发明提供的前置摄像头亮度补偿方法及装置，还可以根据所述环境的颜色调整所述屏幕显示的颜色，使得亮度补偿时可以更好的结合环境颜色，补偿效果更好，拍摄时背景亮度与颜色的融合性更好。
附图说明
为了更清楚地说明本发明具体实施方式或现有技术中的技术方案，下面将对具体实施方式或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图是本发明的一些实施方式，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本发明实施例1中前置摄像头亮度补偿方法的流程图；
图2为本发明实施例2中的具有前置摄像头亮度补偿功能的手机的结构框图；
图3为本发明实施例3中前置摄像头亮度补偿装置的结构框图；
图4为本发明实施例4中具有一个处理器的前置摄像头亮度补偿装置的结构框图；
图5为本发明实施例4中具有二个处理器的前置摄像头亮度补偿装置的结构框图。
具体实施方式
下面将结合附图对本发明的技术方案进行清楚、完整地描述，显然， 所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
在本发明的描述中，需要说明的是，术语“中心”、“上”、“下”、“左”、“右”、“竖直”、“水平”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。此外，术语“第一”、“第二”、“第三”仅用于描述目的，而不能理解为指示或暗示相对重要性。
在本发明的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，还可以是两个元件内部的连通，可以是无线连接，也可以是有线连接。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本发明中的具体含义。
此外，下面所描述的本发明不同实施方式中所涉及的技术特征只要彼此之间未构成冲突就可以相互结合。
实施例1
本实施例中提供一种前置摄像头亮度补偿方法，可用于手机、ipad等移动终端中，在拍摄或录像时对前置摄像头进行亮度补偿，该方法包括如下步骤：
S1、获取当前环境的亮度。当前的环境亮度可以在拍摄时通过内置的光敏传感器等设备获得，这样就可以得到当前的环境亮度。
S2、判断所述亮度是否小于光线补偿开启阈值，若小于则计算补偿亮度；若不小于则无需进行光线补偿，直接拍摄即可。
当获得了当前的环境亮度后，根据选定的拍摄模式所需的亮度要求，光线补偿具有一个阈值，当亮度大于该阈值时无需亮度补偿，直接拍照即可，但当亮度小于该阈值时，则需要进行补偿。因此需要先判断当前的环境亮度是否小于光线补偿开启阈值，小于的时候，可以计算出所述补偿亮度，补偿亮度为拍摄所需的亮度减去当前的环境亮度，拍摄时所需的亮度根据拍摄模式的不同而不同，是预先设置好的。
S3、判断所述补偿亮度是否小于屏幕亮度补偿极值。此时优先考虑使用屏幕补偿，当屏幕可以满足补偿亮度时，则使用屏幕。当小于时，执行S4，当不小于时执行S5.
S4、当所述补偿亮度小于屏幕亮度补偿极值时，开启所述屏幕并将其亮度调整至所述补偿亮度。
该方案中，利用屏幕进行亮度补偿，当屏幕满足补偿所需的亮度时，优先使用屏幕进行补偿，可以减小前置闪光灯等开启次数，延长其使用寿命，同时也可以满足拍照的要求，获得更好的自拍拍摄效果。
S5、在进一步的实施方案中，所述补偿亮度不小于所述屏幕亮度补偿极值时，通过屏幕补偿无法满足要求，则判断所述补偿亮度是否大于前置 闪光灯补偿极值，若不大于则执行步骤S6，大于则执行步骤S7。
S6、补偿亮度不大于前置闪光灯补偿极值时，将所述前置闪光灯开启并将其亮度调整至所述补偿亮度。
如果屏幕无法满足亮度补偿的需求，而闪光灯可以满足该补偿的要求，则使用前置闪光灯来进行光线补偿，并通过调整前置闪光灯的亮度使其达到所需的补偿亮度，例如控制前置闪光灯电流的大小，使得所述前置闪光灯达到所需的亮度，这样比使用单一亮度的前置闪光灯更能满足当前拍摄的要求，且更加节约能源。
S7、当所述补偿亮度大于前置闪光灯补偿极值，将判断所述补偿亮度是否小于所述前置闪光灯补偿极值与屏幕亮度补偿极值之和，若小于则执行步骤S8，若不小于则执行S9。
S8、同时开启所述前置闪光灯和屏幕，使得所述前置闪光灯的亮度与所述屏幕亮度之和等于所述补偿亮度。此时，可以将所述前置闪光灯的亮度调整至最大值，将所述屏幕亮度调整至该最大值与所述补偿亮度的差值。也可以选择将屏幕亮度调整至最大值，将前置闪光灯的亮度调整至该最大值与所述补偿亮度的差值。当然，也可以将前置闪光灯的亮度、屏幕亮度都不调整至最大值，而是输出相同的亮度百分比a，例如：(A+B)*a＝M，其中，A为屏幕的屏幕亮度补偿极值，B为闪光灯补偿极值，a为补偿百分比，M为补偿亮度，此时将前置闪光灯的亮度调整至B*a，将屏幕亮度调整至A*a。
S9、同时开启所述前置闪光灯和屏幕，将所述闪光灯和所述屏幕的亮 度都调至最大值。当单独使用屏幕或者前置闪光灯无法满足亮度补偿的要求时，可以同时使用，使其满足所需的补偿需求，能够最大程度的对当前的亮度进行补偿，使得在不利的拍摄条件下获得更好的拍摄效果。
作为优化的方案，在开启所述屏幕时，根据所述环境的颜色调整所述屏幕显示的颜色。使得亮度补偿时可以更好的结合环境颜色，补偿效果更好，拍摄时背景亮度与颜色的融合性更好。此处还可以根据拍摄模式的选择，将屏幕设置为不同的颜色，使得拍摄效果与拍摄模式更加吻合。
实施例2：
本实施例中提供一种具有前置摄像头亮度补偿功能的移动终端，该移动终端可以是手机、平板电脑、ipad等，本实施例中的移动终端为手机，如图2所示，包括扣合设置的面壳1和后壳，在所述面壳1和后壳形成的腔体内设置有手机控制器2，在所述面壳1上设置有屏幕3和前置摄像头4，在所述面壳1上还设置有至少一个前置闪光灯5，所述前置闪光灯5的亮度能够调节，所述手机控制器2用于执行实施例1所述的前置摄像头亮度补偿装置控制所述前置闪光灯5和所述屏幕3的亮度。
作为优选的方案，所述前置闪光灯5可以设置为多个，位置也可以根据需设置，如设置在前置摄像头4的旁边，或者设置在屏幕3的上方、下方或者中间位置，在具体实施的时候根据需要选择即可。
该移动终端可以在使用前置摄像头4进行拍摄时，通过调整屏幕3和前置闪光灯5的亮度进行亮度补偿，提高拍摄效果。
实施例3：
本实施例提供一种前置摄像头亮度补偿装置，如图3所示，包括：
环境亮度获取单元01，用于获取当前环境的亮度；
第一判断单元02，用于判断所述亮度是否小于光线补偿开启阈值；
补偿亮度计算单元03，用于当所述亮度小于光线补偿开启阈值时计算补偿亮度；
第二判断单元04，用于判断所述补偿亮度是否小于屏幕亮度补偿极值；
屏幕补偿单元05，用于所述补偿亮度小于屏幕亮度补偿极值时，开启所述屏幕并将其亮度调整至所述补偿亮度。
在优选的方案中，还包括：
第三判断单元，用于所述补偿亮度不小于所述屏幕亮度补偿极值时，判断所述补偿亮度是否大于前置闪光灯补偿极值；
前置闪光灯补偿单元，用于所述补偿亮度不大于前置闪光灯补偿极值时，将所述前置闪光灯开启并将其亮度调整至所述补偿亮度。
第四判断单元，用于当所述补偿亮度大于前置闪光灯补偿极值，将判断所述补偿亮度是否小于所述前置闪光灯补偿极值与屏幕亮度补偿极值之和；
综合补偿单元，用于所述补偿亮度小于所述前置闪光灯补偿极值与屏 幕亮度补偿极值之和时，同时开启所述前置闪光灯和屏幕，使得所述前置闪光灯的亮度与所述屏幕亮度之和等于所述补偿亮度。
极限补偿单元，当所述补偿亮度不小于所述前置闪光灯补偿极值与屏幕亮度补偿极值之和时，同时开启所述前置闪光灯和屏幕，将所述闪光灯和所述屏幕的亮度都调制最大值。
在优选的方案中，还包括颜色调整单元，开启所述屏幕时，根据所述环境的颜色调整所述屏幕显示的颜色。
该方案中的前置摄像头亮度补偿装置，通过调整屏幕和前置闪光灯的亮度进行亮度补偿，提高拍摄效果，可用于自拍、视频通话等。
实施例4
本实施例提供了一种前置摄像头亮度补偿装置，包括：一个或者多个处理器200；存储器100；一个或者多个程序，所述一个或者多个程序存储在所述储器100中，当被所述一个或者多个处理器200执行时，进行如下操作：获取当前环境的亮度；判断所述亮度是否小于光线补偿开启阈值，若是则计算补偿亮度；判断所述补偿亮度是否小于屏幕亮度补偿极值，若小于则将开启所述屏幕并将其亮度调整至所述补偿亮度。具体为如图4所示可以包括一个处理器200，如图5所示可以包括二个处理器200。
本实施例的所述装置，优选为，所述补偿亮度不小于所述屏幕亮度补偿极值时，判断所述补偿亮度是否大于前置闪光灯补偿极值，若不大于则将所述前置闪光灯开启并将其亮度调整至所述补偿亮度。
本领域内的技术人员应明白，本发明的实施例可提供为方法、系统、或计算机程序产品。因此，本发明可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本发明可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
本发明是参照根据本发明实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现 在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
显然，上述实施例仅仅是为清楚地说明所作的举例，而并非对实施方式的限定。对于所属领域的普通技术人员来说，在上述说明的基础上还可以做出其它不同形式的变化或变动。这里无需也无法对所有的实施方式予以穷举。而由此所引伸出的显而易见的变化或变动仍处于本发明创造的保护范围之中。

Claims (12)

  1. 一种前置摄像头亮度补偿方法，其特征在于，包括如下步骤：
    获取当前环境的亮度；
    判断所述亮度是否小于光线补偿开启阈值，若是则计算补偿亮度；
    判断所述补偿亮度是否小于屏幕亮度补偿极值，若小于则将开启所述屏幕并将其亮度调整至所述补偿亮度。
  2. 根据权利要求1所述的方法，其特征在于，所述补偿亮度不小于所述屏幕亮度补偿极值时，判断所述补偿亮度是否大于前置闪光灯补偿极值，若不大于则将所述前置闪光灯开启并将其亮度调整至所述补偿亮度。
  3. 根据权利要求2所述的方法，其特征在于，若所述补偿亮度大于前置闪光灯补偿极值，将判断所述补偿亮度是否小于所述前置闪光灯补偿极值与屏幕亮度补偿极值之和，若小于，则同时开启所述前置闪光灯和屏幕，使得所述前置闪光灯的亮度与所述屏幕亮度之和等于所述补偿亮度。
  4. 根据权利要求3所述的方法，其特征在于，若所述补偿亮度不小于所述前置闪光灯补偿极值与屏幕亮度补偿极值之和时，则同时开启所述前置闪光灯和屏幕，将所述闪光灯和所述屏幕的亮度都调至最大值。
  5. 根据权利要求3所述的方法，其特征在于，同时开启所述前置闪光灯和屏幕，使得所述前置闪光灯的亮度与所述屏幕亮度之和等于所述补偿亮度的步骤中，将所述前置闪光灯的亮度调整至最大值，将所述屏幕亮度 调整至该最大值与所述补偿亮度的差值。
  6. 根据权利要求1-5任一所述的方法，其特征在于，还包括开启所述屏幕时，根据所述环境的颜色调整所述屏幕显示的颜色。
  7. 一种具有前置摄像头亮度补偿功能的移动终端，包括扣合设置的面壳和后壳，在所述面壳和后壳形成的腔体内设置有终端控制器，在所述面壳上设置有屏幕和前置摄像头，其特征在于，在所述面壳上还设置有至少一个前置闪光灯，所述前置闪光灯的亮度能够调节，所述终端控制器用于执行权利要求1-6所述的方法控制所述前置闪光灯和所述屏幕的亮度。
  8. 根据权利要求7所述的手机，其特征在于，所述前置闪光灯为多个。
  9. 一种前置摄像头亮度补偿装置，其特征在于，包括：
    环境亮度获取单元，用于获取当前环境的亮度；
    第一判断单元，用于判断所述亮度是否小于光线补偿开启阈值；
    补偿亮度计算单元，用于当所述亮度小于光线补偿开启阈值时计算补偿亮度；
    第二判断单元，用于判断所述补偿亮度是否小于屏幕亮度补偿极值；
    屏幕补偿单元，用于所述补偿亮度小于屏幕亮度补偿极值时，开启所述屏幕并将其亮度调整至所述补偿亮度。
  10. 根据权利要求9所述的装置，其特征在于，还包括第三判断单元， 用于所述补偿亮度不小于所述屏幕亮度补偿极值时，判断所述补偿亮度是否大于前置闪光灯补偿极值；
    前置闪光灯补偿单元，用于所述补偿亮度不大于前置闪光灯补偿极值时，将所述前置闪光灯开启并将其亮度调整至所述补偿亮度。
  11. 一种前置摄像头亮度补偿装置，其特征在于，包括：
    一个或者多个处理器；
    存储器；
    一个或者多个程序，所述一个或者多个程序存储在所述存储器中，当被所述一个或者多个处理器执行时，进行如下操作：
    获取当前环境的亮度；
    判断所述亮度是否小于光线补偿开启阈值，若是则计算补偿亮度；
    判断所述补偿亮度是否小于屏幕亮度补偿极值，若小于则将开启所述屏幕并将其亮度调整至所述补偿亮度。
  12. 根据权利要求11所述的装置，其特征在于，所述补偿亮度不小于所述屏幕亮度补偿极值时，判断所述补偿亮度是否大于前置闪光灯补偿极值，若不大于则将所述前置闪光灯开启并将其亮度调整至所述补偿亮度。
PCT/CN2016/088336 2015-12-10 2016-07-04 前置摄像头亮度补偿方法和装置及移动终端 Ceased WO2017096795A1 (zh)

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