WO2013060199A1 - 一种手机及基于手机调节显示器亮度的方法 - Google Patents

一种手机及基于手机调节显示器亮度的方法 Download PDF

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Publication number
WO2013060199A1
WO2013060199A1 PCT/CN2012/080986 CN2012080986W WO2013060199A1 WO 2013060199 A1 WO2013060199 A1 WO 2013060199A1 CN 2012080986 W CN2012080986 W CN 2012080986W WO 2013060199 A1 WO2013060199 A1 WO 2013060199A1
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Prior art keywords
brightness
display
image
mobile phone
module
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French (fr)
Inventor
谢俊麒
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Huizhou TCL Mobile Communication Co Ltd
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Huizhou TCL Mobile Communication Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/22—Illumination; Arrangements for improving the visibility of characters on dials

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  • the present invention relates to the field of communication devices, and in particular, to a mobile phone and a method for adjusting brightness of a display based on a mobile phone.
  • the technical problem to be solved by the present invention is to provide a mobile phone and a method for adjusting the brightness of the display based on the mobile phone, so as to adjust the brightness of the external display by using the mobile phone to avoid the physical harm caused by the display that is not suitable for the long time. Human comfort and improved work efficiency.
  • a technical solution adopted by the present invention is to provide a mobile phone, which includes: a camera module, an image signal processing module, a comparison judgment module, a prompt module, and a brightness assistant module.
  • the camera module is configured to collect images of the background environment and images of the display.
  • the image signal processing module is coupled to the camera module to process the image of the background environment and the image of the display to respectively obtain the brightness value of the background environment and the brightness value of the display.
  • the image signal processing module uses the brightness average value of the pixel set corresponding to the image of the background environment as the brightness value of the background environment, and the brightness average value of the pixel set corresponding to the image of the display as the brightness value of the display.
  • the comparison judging module is connected to the image signal processing module to calculate a brightness difference between the brightness value of the background environment and the brightness value of the display, and compare whether the brightness difference value and the preset brightness difference value are the same.
  • the prompting module is connected to the comparison judging module, and is configured to issue a prompt for adjusting the brightness of the display according to the comparison result.
  • the brightness auxiliary adjustment module is connected to the image signal processing module, and the brightness auxiliary adjustment module is configured to set one of the two images acquired by the camera module to be an image of the background environment, and the other image is an image of the display.
  • the prompting module issues a brightness hint of the dimming display; if the brightness difference is greater than the preset brightness difference, the prompting module issues a brightness prompt for the brightening display.
  • the mobile phone further includes a storage module, and the storage module is connected to the comparison determination module, and the storage module is configured to store the preset brightness difference value.
  • the brightness assisting module is a user interaction unit for determining an area where the image of the display and the image of the background environment are located according to the interactive instruction obtained by the user.
  • another technical solution adopted by the present invention is: a method for adjusting brightness of a display based on a mobile phone, comprising: collecting an image of a background environment and an image of a display by using a mobile phone; and processing an image and a display of the background environment by using the mobile phone; The image is obtained to respectively obtain the brightness value of the background environment and the brightness value of the display; use the mobile phone to calculate the brightness difference between the brightness value of the background environment and the brightness value of the display, and compare whether the brightness difference value and the preset brightness difference value are the same If the brightness difference is different from the preset brightness difference, the user is prompted to adjust the brightness of the display through the mobile phone.
  • the step of capturing an image of the background environment and the image of the display by using the mobile phone further includes: setting one of the two images acquired by the mobile phone to be an image of the background environment according to the interaction instruction, and the other image is an image of the display.
  • the brightness value of the background environment is the average value of the brightness of the pixel set corresponding to the image of the background environment; the brightness value of the display is the brightness average value of the pixel set corresponding to the image of the display.
  • the step of prompting the user to adjust the brightness of the display by the mobile phone further includes: if the brightness difference is smaller than the preset brightness difference, the mobile phone prompts the user to dim the brightness of the display; If the brightness difference is greater than the preset brightness difference, the mobile phone prompts the user to brighten the brightness of the display.
  • the prompting manner includes: an audible prompt, a text prompt or an image prompt.
  • a mobile phone which includes: a camera module, an image signal processing module, a comparison judgment module, and a prompt module.
  • the camera module is configured to collect images of the background environment and images of the display.
  • the image signal processing module is coupled to the camera module to process the image of the background environment and the image of the display to respectively obtain the brightness value of the background environment and the brightness value of the display.
  • the comparison judging module is connected to the image signal processing module to calculate a brightness difference between the brightness value of the background environment and the brightness value of the display, and compare whether the brightness difference value and the preset brightness difference value are the same.
  • the prompting module is connected to the comparison judging module, and is configured to issue a prompt for adjusting the brightness of the display according to the comparison result.
  • the mobile phone further includes a brightness auxiliary adjustment module, the brightness auxiliary adjustment module is connected to the image signal processing module, and the brightness auxiliary adjustment module is configured to set one of the two images captured by the camera module to be an image of the background environment, and the other image is The image of the display.
  • the image signal processing module uses the brightness average value of the pixel set corresponding to the image of the background environment as the brightness value of the background environment; and the brightness average value of the pixel set corresponding to the image of the display is the brightness value of the display.
  • the prompting module issues a brightness hint of the dimming display; if the brightness difference is greater than the preset brightness difference, the prompting module issues a brightness prompt for the brightening display.
  • the mobile phone further includes a storage module, and the storage module is connected to the comparison determination module, and the storage module is configured to store the preset brightness difference value.
  • the brightness assisting module is a user interaction unit for determining an area where the image of the display and the image of the background environment are located according to the interactive instruction obtained by the user.
  • the mobile phone of the present invention and the method for adjusting the brightness of the display based on the mobile phone use the mobile phone to adjust the brightness of the external display, expand the application of the mobile phone, and improve the user experience;
  • the mobile phone prompts to brighten or dim the brightness of the external display, so it can help the user to adjust the brightness of the display, thereby avoiding the physical harm caused by the long-term exposure of the display with inappropriate brightness, and improving the human body. Comfort and improve work efficiency.
  • FIG. 1 is a flow chart of a method for adjusting brightness of a display based on a mobile phone according to an embodiment of the present invention
  • FIG. 2 is a schematic structural diagram of a mobile phone according to an embodiment of the present invention.
  • FIG. 3 is a flow chart of a method for acquiring a preset luminance difference value.
  • FIG. 1 is a flow chart of a method for adjusting brightness of a display based on a mobile phone according to an embodiment of the present invention. As shown in FIG. 1, the method for adjusting the brightness of a display based on a mobile phone includes the following steps:
  • Step S1 collecting an image of a background environment and an image of the display by using the mobile phone;
  • the step of acquiring the image of the background environment and the image of the display by using the mobile phone further comprises: setting, according to the interaction instruction, one of the two images acquired by the mobile phone is an image of the background environment, and the other image is an image of the display. .
  • the camera cannot identify the display image area and the environment image area autonomously, it is necessary to determine which block is the display image area according to the user's interactive instruction, which area is the environment image area, and prompt the user when capturing.
  • the camera framing area contains the background environment and the display.
  • Step S2 processing an image of the background environment and an image of the display by using the mobile phone to respectively acquire a brightness value of the background environment and a brightness value of the display;
  • the YUV422 standard camera is taken as an example, and the 8-bit data format of each pixel transmitted during the previewing and imaging process is: Y0U0Y1V0Y2U1Y3V1.
  • the four values Y0, Y1, Y2, and Y3 are used to indicate the brightness of the pixel. Therefore, it is only necessary to obtain the average brightness value of one pixel based on the data, and then according to the number of pixels included in one area and each.
  • the average brightness value of the pixel is used to find the average value of the brightness of the area, and the average value of the brightness is used as the brightness value of the area.
  • the brightness value of the background environment is the average value of the brightness of the pixel set corresponding to the image of the background environment;
  • the brightness value of the display is the brightness average value of the pixel set corresponding to the image of the display.
  • Step S3 calculating, by using the mobile phone, a brightness difference between the brightness value of the background environment and the brightness value of the display, and comparing whether the brightness difference value and the preset brightness difference value are the same;
  • the difference between the brightness of the two is basically a fixed value, so we only need to find the appropriate difference, and we can give the ambient brightness according to the camera camera.
  • Appropriate display brightness Due to the difference in performance of the camera, it is best to select different mobile phones, and select the respective experimental populations to record the difference between the ambient brightness and the display brightness of the display brightness that the experimental group considers appropriate in the various common environments.
  • Appropriate fixed difference then reverse the experiment, in the previous various environments, according to the contrast value of the brightness captured by the camera and the previously selected brightness difference, adjust the brightness of the display to see if the comfort requirements of the experimental population are met. If it is not satisfied, correct the fixed brightness difference and then perform the reverse experiment.
  • the closed-loop experiment is continually corrected to select the final suitable fixed difference.
  • the luminance difference is the luminance value of the background environment minus the luminance value of the display area image, that is:
  • Brightness difference brightness value of the background environment - display area image brightness value
  • FIG. 3 is a flow chart of an experimental acquisition method for preset luminance difference values.
  • the experiment is repeated multiple times for different populations to obtain a large amount of data and to select the optimal data therefrom to represent a suitable brightness difference for a population of people. For example, in the face of a large number of 60-80-year-olds, an experiment is conducted to select an appropriate value as an alternative to the brightness difference of the elderly group. If the user is an elderly person, the brightness value can be directly selected as the preset brightness difference. debugging.
  • the experimental acquisition method of the preset luminance difference includes the following steps:
  • Step 310 Obtain an initial fixed luminance difference value in a forward experiment
  • Step 320 Select a fixed luminance difference value
  • Step 330 The reverse experiment verifies the fixed brightness difference, determines whether the comfort requirement is met, if yes, proceeds to step S340; if not, proceeds to step S350;
  • Step 340 Meet the comfort requirement and determine the final brightness difference value
  • Step 350 The comfort level is not satisfied, the fixed brightness difference is corrected and the process returns to step 320.
  • the mobile phone After obtaining the brightness difference between the brightness value of the background environment and the brightness value of the display by using the mobile phone, it is further compared whether the brightness difference value is the same as the preset brightness difference value.
  • Step S4 prompting the user to adjust the brightness of the display by the mobile phone if the brightness difference value is different from the preset brightness difference value.
  • the step of prompting the user to adjust the brightness of the display by using the mobile phone specifically includes: according to the foregoing comparison principle, if the brightness difference is greater than If the brightness difference is small, indicating that the brightness of the display is not suitable at this time, the mobile phone prompts the user to dim the brightness of the display, so that the brightness difference between the brightness value of the background environment and the brightness value of the display is more Close to or equal to the preset brightness difference to ensure that the brightness of the display meets the needs of user comfort;
  • the mobile phone If the brightness difference is greater than the preset brightness difference, indicating that the brightness of the display is not suitable at this time, the mobile phone prompts the user to brighten the brightness of the display so that the brightness difference between the brightness value of the background environment and the brightness value of the display is The value is closer to or equal to the preset brightness difference, ensuring that the brightness of the display meets the needs of user comfort.
  • the mobile phone 200 includes a camera module 210 , an image signal processing module 220 , a comparison determination module 230 , a prompt module 240 , a brightness assistant adjustment module 250 , and a storage module 260 .
  • the camera module 210 is configured to collect an image of a background environment and an image of the display. With the application of the high-definition camera technology on the mobile phone, the camera module can directly use the camera of the mobile phone, and in this embodiment, the camera of the YUV422 standard on the ordinary mobile phone is used.
  • the image signal processing module 220 is connected to the camera module 210 for processing the image of the background environment and the image of the display to respectively obtain the brightness value of the background environment and the brightness value of the display.
  • the camera of the YUV422 standard is taken as an example.
  • the 8-bit data format of each pixel transmitted during preview and imaging is: Y0U0Y1V0Y2U1Y3V1.
  • the four values Y0, Y1, Y2, and Y3 are used to indicate the brightness of the pixel. Therefore, the image signal processing module 220 only needs to obtain the average brightness value of one pixel based on the data, and then according to the included in a region.
  • the number of pixels and the average luminance value of each pixel are used to find the average value of the luminance of the region, and this luminance average value is used as the luminance value of the region.
  • the brightness assist adjustment module 250 is connected to the image signal processing module 220 for setting one of the two images acquired by the camera module to be an image of the background environment, and the other image is an image of the display.
  • the brightness adjustment module 250 is specifically configured as a user interaction unit, according to the user, because the camera module 210 cannot identify the display image area and the environment image area autonomously.
  • the interactive command obtained by the selection determines which area is the display area image and which area is the background environment image and prompts the user to include the background environment and the display in the camera framing area at the beginning of the module startup.
  • the manner of interaction is diverse, and the selection area may be drawn by touch, or the selection area may be drawn by a button operation of the mobile phone.
  • the comparison judging module 230 is connected to the image signal processing module 220 for calculating a brightness difference between the brightness value of the background environment and the brightness value of the display, and comparing whether the brightness difference value is the same as the preset brightness difference value.
  • the preset brightness value is determined in advance by experiments, and the brightness suitable values of different people are obtained in advance through experiments on different groups of people, and then counted and stored in the mobile phone, and the user can select from the user according to his or her own needs. Select a brightness value as the preset, and the user can also set the preset brightness value to meet the user's needs.
  • the storage module 260 is connected to the comparison determination module 230 for storing the preset brightness difference value.
  • the prompting module 240 is connected to the comparison determining module 230 for issuing a prompt for brightness adjustment of the display according to the comparison result.
  • the prompting module if the brightness difference is less than the preset brightness difference, the prompting module sends a brightness hint of the dimming display; if the brightness difference is greater than the preset brightness difference, the prompting module issues a brightness The brightness hint of the display.
  • the mobile phone of the present invention and the method for adjusting the brightness of the display based on the mobile phone use the mobile phone to adjust the brightness of the external display, expand the application of the mobile phone, and improve the user experience; meanwhile, when the brightness of the display is inappropriate, the mobile phone prompts Brighten or dim the brightness of the external display, so you can help the user adjust the brightness of the display, thus avoiding the physical hazard caused by the long-term exposure of the display with inappropriate brightness, improving the comfort of the human body and improving work efficiency.

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Abstract

本发明公开了一种手机及基于手机调节显示器亮度的方法，其包括：利用手机采集背景环境和显示器的图像；利用手机分别获取背景环境和显示器的亮度值；利用手机计算背景环境和显示器之间的亮度差值，并比较亮度差值与预设的亮度差值是否相同；若亮度差值与预设的亮度差值不同则提示用户调节显示器的亮度。通过上述方式，本发明能够避免因为长时间面对亮度不合适的显示器所带来的身体危害，提高人体舒适度。

Description

一种手机及基于手机调节显示器亮度的方法
【技术领域】
本发明涉及通讯装置领域，特别是涉及一种手机及基于手机调节显示器亮度的方法。
【背景技术】
随着移动终端的普及，人手几乎一部手机。在此基础上，人们希望将越来越多的功能集成到一部手机上，以增加手机的实用性和附加值，诸如mp3，拍照，摄像等都成为了手机的常用功能。同时，现代人工作大部分时间都需要面对电脑，电脑显示器的亮度相比环境亮度是否合适，直接影响到工作环境的舒适程度。然而现有的电脑显示器不具有根据环境亮度调节合适亮度的功能，使得用户只能根据感觉调节亮度，这样的调节很不准确，从而影响工作效率甚至因为长时间面对亮度不合适的显示器所带来的身体危害。
因此，需要一种手机及基于手机调节显示器亮度的方法，以解决现有技术的问题。
【发明内容】
本发明主要解决的技术问题是提供提供一种手机及基于手机调节显示器亮度的方法，以利用手机辅助调节外部显示器亮度，避免因为长时间面对亮度不合适的显示器所带来的身体危害，提高人体舒适度，提升工作效率。
为解决上述技术问题，本发明采用的一个技术方案是：提供一种手机，其包括：摄像模块、图像信号处理模块、比较判断模块、提示模块以及亮度辅助模块。其中，摄像模块用以采集背景环境的图像和显示器的图像。图像信号处理模块与摄像模块连接，用以处理背景环境的图像和显示器的图像以分别获取背景环境的亮度值和显示器的亮度值。图像信号处理模块以背景环境的图像所对应的像素集合的亮度平均值为背景环境的亮度值，以显示器的图像所对应的像素集合的亮度平均值为显示器的亮度值。比较判断模块与图像信号处理模块连接，用以计算背景环境的亮度值和显示器的亮度值之间的亮度差值，并比较亮度差值与预设的亮度差值是否相同。提示模块与比较判断模块连接，用以根据比较的结果发出对显示器的进行亮度调节的提示。亮度辅助调节模块与图像信号处理模块连接，亮度辅助调节模块用以设定摄像模块采集的两个图像中一个图像是背景环境的图像，另一个图像是显示器的图像。
其中，若亮度差值小于预设的亮度差值，提示模块发出调暗显示器的亮度提示；若亮度差值大于预设的亮度差值时，提示模块发出调亮显示器的亮度提示。
其中，手机进一步包括储存模块，储存模块与比较判断模块连接，储存模块用以储存预设的亮度差值。
其中，亮度辅助模块是一个用户交互单元，用于根据用户的选择得到的交互指令判断显示器的图像和背景环境的图像所处的区域。
为解决上述技术问题，本发明采用的另一个技术方案是：一种基于手机调节显示器亮度的方法，其包括：利用手机采集背景环境的图像和显示器的图像；利用手机处理背景环境的图像和显示器的图像以分别获取背景环境的亮度值和显示器的亮度值；利用手机计算背景环境的亮度值和显示器的亮度值之间的亮度差值，并比较亮度差值与预设的亮度差值是否相同；若亮度差值与预设的亮度差值不同则通过手机提示用户调节显示器的亮度。
其中，利用手机采集背景环境的图像和显示器的图像的步骤进一步包括：根据交互指令设定手机采集的两个图像中的一个图像是背景环境的图像，另一个图像是显示器的图像。
其中，背景环境的亮度值为背景环境的图像所对应的像素集合的亮度平均值；显示器的亮度值为显示器的图像所对应的像素集合的亮度平均值。
其中，若亮度差值与预设的亮度差值不同则通过手机提示用户调节显示器的亮度的步骤进一步包括：若亮度差值比预设的亮度差值小则手机提示用户调暗显示器的亮度；若亮度差值比预设的亮度差值大则手机提示用户调亮显示器的亮度。
其中，提示的方式包括：声音提示、文字提示或图像提示。
为解决上述问题，本发明采用的又一个技术方案是：提供一种手机，其包括：摄像模块、图像信号处理模块、比较判断模块以及提示模块。其中，摄像模块，用以采集背景环境的图像和显示器的图像。图像信号处理模块与摄像模块连接，用以处理背景环境的图像和显示器的图像以分别获取背景环境的亮度值和显示器的亮度值。比较判断模块与图像信号处理模块连接，用以计算背景环境的亮度值和显示器的亮度值之间的亮度差值，并比较亮度差值与预设的亮度差值是否相同。提示模块与比较判断模块连接，用以根据比较的结果发出对显示器的进行亮度调节的提示。
其中，手机进一步包括一个亮度辅助调节模块，亮度辅助调节模块与图像信号处理模块连接，亮度辅助调节模块用以设定摄像模块采集的两个图像中一个图像是背景环境的图像，另一个图像是显示器的图像。
其中，图像信号处理模块以背景环境的图像所对应的像素集合的亮度平均值为背景环境的亮度值；以显示器的图像所对应的像素集合的亮度平均值为显示器的亮度值。
其中，若亮度差值小于预设的亮度差值，提示模块发出调暗显示器的亮度提示；若亮度差值大于预设的亮度差值时，提示模块发出调亮显示器的亮度提示。
其中，手机进一步包括储存模块，储存模块与比较判断模块连接，储存模块用以储存预设的亮度差值。
其中，亮度辅助模块是一个用户交互单元，用于根据用户的选择得到的交互指令判断显示器的图像和背景环境的图像所处的区域。
本发明的有益效果是：区别于现有技术的情况，本发明的手机及基于手机调节显示器亮度的方法利用手机辅助调节外部显示器亮度，扩展手机的应用，提高了用户的体验感；同时，在检测到显示器亮度不合适时，手机提示调亮或调暗外部显示器的亮度，因此可以帮助用户调节显示器的亮度，从而避免因为长时间面对亮度不合适的显示器所带来的身体危害，提高人体舒适度，提升工作效率。
【附图说明】
图1是本发明实施例的基于手机调节显示器亮度的方法的流程图；
图2是本发明实施例的手机的结构示意图；
图3预设亮度差值的获取方法流程图。
【具体实施方式】
下面结合附图和实施例对本发明进行详细说明。
图1是本发明实施例的一种基于手机调节显示器亮度的方法的流程图。如图1所示，基于手机调节显示器亮度的方法包括如下步骤：
步骤S1:利用所述手机采集背景环境的图像和所述显示器的图像；
在本实施例中，利用手机采集背景环境的图像和显示器的图像的步骤进一步包括：根据交互指令设定手机采集的两个图像中的一个图像是背景环境的图像，另一个图像是显示器的图像。
在本实施例中，因为摄像头不能自主识别显示器图像区域和环境图像区域，所以需要根据用户的交互指令确定哪块区域是显示器图像区域，哪块区域是环境图像区域，并在摄像时就提示用户将摄像头取景区域包含背景环境与显示器。
步骤S2：利用所述手机处理所述背景环境的图像和所述显示器的图像以分别获取所述背景环境的亮度值和所述显示器的亮度值；
其中，在本实施例中，以YUV422制式的摄像头为例，其在预览和成像过程中传输的每个像素的8位数据格式为：Y0U0Y1V0Y2U1Y3V1。其中Y0,Y1,Y2,Y3这四个值均用来表示该像素点的亮度，因此只需要根据这些数据就能得到一个像素的平均亮度值，然后根据一个区域中包括的像素数目以及每个像素的平均亮度值求出该区域的亮度平均值，以这个亮度平均值作为该区域的亮度值。
本发明实施例中，背景环境的亮度值为背景环境的图像所对应的像素集合的亮度平均值；显示器的亮度值为显示器的图像所对应的像素集合的亮度平均值。
步骤S3：利用所述手机计算所述背景环境的亮度值和所述显示器的亮度值之间的亮度差值，并比较所述亮度差值与预设的亮度差值是否相同；
由于合适的显示器亮度需要随外部环境亮度变化而变化，但两者亮度的差值基本为一个固定值，所以我们只需寻找出这个合适的差值，就可以根据手机摄像头采集的环境亮度，给出合适的显示器亮度。由于摄像头的性能差异，最好不同的手机，选取各自的实验人群，分别记录各种常见环境下，实验人群认为合适的显示器亮度在手机摄像头采集后的环境亮度与显示器亮度的差值，并选取合适的固定差值；再反向进行实验，在之前的各种环境下，根据摄像头采集的亮度对比值和之前选定的亮度差值，调节显示器亮度，看是否满足实验人群的舒适度要求，不满足就修正固定亮度差值再进行反向实验。如此，闭环实验，不断修正，选取最终合适的固定差值。
在本实施例中，通过实验所得的合适的固定差值有很多种以面向不同的人群，用户可以自行选择合适的作为预设的亮度差值。
在本实施例中亮度差值为背景环境的亮度值减去显示器区域图像亮度值，即：
亮度差值=背景环境的亮度值—显示器区域图像亮度值
所以只需要根据以上公式手机即可得出背景环境图像与示器区域图像的亮度差值，再与预设亮度差值进行比较。
图3是预设亮度差值的实验获取方法流程图。在本实施例中，该实验面向不同的人群重复多次，以得到大量数据并从中选取最优的数据来代表一类人群的合适的亮度差值。例如：面对大量60—80岁的老人进行实验，从中选出合适的值作为老年人群的亮度差值备选，用户如果是老年人则可以直接选择这个亮度值作为预设亮度差值再进行调试。
具体而言，如图3所示，预设亮度差值的实验获取方法包括如下步骤：
步骤310：正向实验获得初始固定亮度差值；
步骤320：选取固定亮度差值；
步骤330：反向实验验证固定亮度差值，判断是否满足舒适度要求，如果满足，则进入步骤S340；如不满足，则进入步骤S350；
步骤340：满足舒适度要求，确定最终亮度差值；
步骤350：不满足舒适度，修正固定亮度差值并返回到步骤320。
如前所述，得到利用所述手机计算背景环境的亮度值和显示器的亮度值之间的亮度差值后，进一步比较该亮度差值与预设的亮度差值是否相同。
步骤S4：若所述亮度差值与预设的亮度差值不同则通过所述手机提示用户调节所述显示器的亮度。
具体而言，在本实施例中，若亮度差值与预设的亮度差值不同则通过所述手机提示用户调节显示器的亮度的步骤具体包括：根据前述的比较原理，若亮度差值比预设的亮度差值小，表明显示器此时的亮度不合适，则手机提示用户调暗所述显示器的亮度，以使得背景环境的亮度值和显示器的亮度值之间的亮度差值的取值更接近或是等于预设的亮度差值，确保显示器亮度满足用户舒适度的需要；
若亮度差值比预设的亮度差值大，表明显示器此时的亮度不合适，则手机提示用户调亮显示器的亮度，以使得背景环境的亮度值和显示器的亮度值之间的亮度差值的取值更接近或是等于预设的亮度差值，确保显示器亮度满足用户舒适度的需要。
在本实施例中，提示用户调节的方式有很多，包括但不限于声音提示、文字提示或图像提示，用户可以根据自己的需求和喜好来选择一种或多种提示方式。
图2是本发明实施例的手机的结构示意图。如图2所示，手机200包括摄像模块210、图像信号处理模块220、比较判断模块230、提示模块240、亮度辅助调节模块250以及储存模块260。
其中，摄像模块210用于采集背景环境的图像和显示器的图像。随着高清摄像技术在手机上的应用，摄像模块可以直接使用手机的摄像头，在本实施例中采用的就是普通手机上YUV422制式的摄像头。
图像信号处理模块220.与摄像模块210连接，用以处理背景环境的图像和显示器的图像以分别获取背景环境的亮度值和显示器的亮度值，在本实施例中，以YUV422制式的摄像头为例，其在预览和成像过程中传输的每个像素的8位数据格式为：Y0U0Y1V0Y2U1Y3V1。其中Y0,Y1,Y2,Y3这四个值均用来表示该像素点的亮度，因此图像信号处理模块220只需要根据这些数据就能得到一个像素的平均亮度值，然后根据一个区域中包括的像素数目以及每个像素的平均亮度值求出该区域的亮度平均值，以这个亮度平均值作为该区域的亮度值。
亮度辅助调节模块250与图像信号处理模块220连接，用以设定摄像模块采集的两个图像中一个图像是背景环境的图像，另一个图像是显示器的图像。在本实施例中，因为摄像模块210不能自主识别显示器图像区域和环境图像区域，所以设立了亮度辅助模块250，在本实施例中，所述亮度调节模块250具体是一个用户交互单元，根据用户的选择得到的交互指令判断哪块区域是显示器区域图像哪块区域是背景环境图像并在模块启动初始就提示用户将摄像头取景区域包含背景环境与显示器。
在本实施例中，交互的方式是多样的，可以通过触摸的方式划出选择区域，也可以通过手机的按键操作来划出选择区域。
比较判断模块230与图像信号处理模块220连接，用以计算背景环境的亮度值和显示器的亮度值之间的亮度差值，并比较亮度差值与预设的亮度差值是否相同。
在本实施例中，所述的预设亮度值是预先通过实验确定的，预先通过对不同人群的实验得到不同人群的亮度适合值，然后统计并储存在手机中，用户可以根据自己的需要从中选择一个作为预设的亮度值，用户也可以自行设定这个预设的亮度值以满足用户的需求。
储存模块260与比较判断模块230连接，用以储存所述预设的亮度差值。
提示模块240与比较判断模块230连接，用以根据比较的结果发出对显示器的进行亮度调节的提示。
具体而言，在本实施例中，若亮度差值小于预设的亮度差值，提示模块发出调暗显示器的亮度提示；若亮度差值大于预设的亮度差值时，提示模块发出调亮显示器的亮度提示。
关于手机200的具体的工作流程和工作原理请参阅上文针对基于手机调节显示器亮度的方法的描述，此处不再赘述。
综上所述，本发明的手机及基于手机调节显示器亮度的方法利用手机辅助调节外部显示器亮度，扩展手机的应用，提高了用户的体验感；同时，在检测到显示器亮度不合适时，手机提示调亮或调暗外部显示器的亮度，因此可以帮助用户调节显示器的亮度，从而避免因为长时间面对亮度不合适的显示器所带来的身体危害，提高人体舒适度，提升工作效率。
以上所述仅为本发明的实施例，并非因此限制本发明的专利范围，凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。

Claims (15)

  1. 一种手机，其中，所述手机包括：
    摄像模块，用以采集背景环境的图像和显示器的图像；
    图像信号处理模块，与所述摄像模块连接，用以处理所述背景环境的图像和所述显示器的图像以分别获取所述背景环境的亮度值和所述显示器的亮度值，所述图像信号处理模块以所述背景环境的图像所对应的像素集合的亮度平均值为所述背景环境的亮度值，以所述显示器的图像所对应的像素集合的亮度平均值为所述显示器的亮度值。
    比较判断模块，与所述图像信号处理模块连接，用以计算所述背景环境的亮度值和所述显示器的亮度值之间的亮度差值，并比较所述亮度差值与预设的亮度差值是否相同；
    提示模块，与所述比较判断模块连接，用以根据所述比较的结果发出对所述显示器的进行亮度调节的提示；
    亮度辅助调节模块，所述亮度辅助调节模块与图像信号处理模块连接，所述亮度辅助调节模块用以设定所述摄像模块采集的两个图像中一个图像是所述背景环境的图像，另一个图像是所述显示器的图像。
  2. 根据权利要求1所述的手机，其中，若所述亮度差值小于所述预设的亮度差值，所述提示模块发出调暗所述显示器的亮度提示；若亮度差值大于所述预设的亮度差值时，所述提示模块发出调亮所述显示器的亮度提示。
  3. 根据权利要求1所述的手机，其中，所述手机进一步包括储存模块，所述储存模块与比较判断模块连接，所述储存模块用以储存所述预设的亮度差值。
  4. 根据权利要求1所述的手机，其中，所述亮度辅助模块是一个用户交互单元，用于根据用户的选择得到的交互指令判断所述显示器的图像和所述背景环境的图像所处的区域。
  5. 一种基于手机调节显示器亮度的方法，其中，所述方法包括：
    利用所述手机采集背景环境的图像和所述显示器的图像；
    利用所述手机处理所述背景环境的图像和所述显示器的图像以分别获取所述背景环境的亮度值和所述显示器的亮度值；
    利用所述手机计算所述背景环境的亮度值和所述显示器的亮度值之间的亮度差值，并比较所述亮度差值与预设的亮度差值是否相同；
    若所述亮度差值与预设的亮度差值不同则通过所述手机提示用户调节所述显示器的亮度。
  6. 根据权利要求5所述的方法，其中，所述利用所述手机采集背景环境的图像和所述显示器的图像的步骤进一步包括：根据交互指令设定所述手机采集的两个图像中的一个图像是所述背景环境的图像，另一个图像是所述显示器的图像。
  7. 根据权利要求5所述的方法，其中，所述背景环境的亮度值为所述背景环境的图像所对应的像素集合的亮度平均值；所述显示器的亮度值为所述显示器的图像所对应的像素集合的亮度平均值。
  8. 根据权利要求5所述的方法，其中，所述若所述亮度差值与预设的亮度差值不同则通过所述手机提示用户调节所述显示器的亮度的步骤进一步包括：若所述亮度差值比预设的亮度差值小则所述手机提示用户调暗所述显示器的亮度；若所述亮度差值比预设的亮度差值大则所述手机提示用户调亮所述显示器的亮度。
  9. 根据权利要求5所述的方法，其中，所述提示的方式包括：声音提示、文字提示或图像提示。
  10. 一种手机，其中，包括：
    摄像模块，用以采集背景环境的图像和显示器的图像；
    图像信号处理模块，与所述摄像模块连接，用以处理所述背景环境的图像和所述显示器的图像以分别获取所述背景环境的亮度值和所述显示器的亮度值；
    比较判断模块，与所述图像信号处理模块连接，用以计算所述背景环境的亮度值和所述显示器的亮度值之间的亮度差值，并比较所述亮度差值与预设的亮度差值是否相同；
    提示模块，与所述比较判断模块连接，用以根据所述比较的结果发出对所述显示器的进行亮度调节的提示。
  11. 根据权利要求10所述的手机，其中，所述手机进一步包括一个亮度辅助调节模块，所述亮度辅助调节模块与图像信号处理模块连接，所述亮度辅助调节模块用以设定所述摄像模块采集的两个图像中一个图像是所述背景环境的图像，另一个图像是所述显示器的图像。
  12. 根据权利要求10所述的手机，其中，所述图像信号处理模块以所述背景环境的图像所对应的像素集合的亮度平均值为所述背景环境的亮度值；以所述显示器的图像所对应的像素集合的亮度平均值为所述显示器的亮度值。
  13. 根据权利要求10所述的手机，其中，若所述亮度差值小于所述预设的亮度差值，所述提示模块发出调暗所述显示器的亮度提示；若亮度差值大于所述预设的亮度差值时，所述提示模块发出调亮所述显示器的亮度提示。
  14. 根据权利要求10所述的手机，其中，所述手机进一步包括储存模块，所述储存模块与比较判断模块连接，所述储存模块用以储存所述预设的亮度差值。
  15. 根据权利要求11所述的手机，其中，所述亮度辅助模块是一个用户交互单元，用于根据用户的选择得到的交互指令判断所述显示器的图像和所述背景环境的图像所处的区域。
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