WO2018161591A1 - 切换背景灰阶进行省电的方法、装置、存储介质及电子设备 - Google Patents

切换背景灰阶进行省电的方法、装置、存储介质及电子设备 Download PDF

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Publication number
WO2018161591A1
WO2018161591A1 PCT/CN2017/107184 CN2017107184W WO2018161591A1 WO 2018161591 A1 WO2018161591 A1 WO 2018161591A1 CN 2017107184 W CN2017107184 W CN 2017107184W WO 2018161591 A1 WO2018161591 A1 WO 2018161591A1
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WIPO (PCT)
Prior art keywords
screen
grayscale
gray level
background image
current
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PCT/CN2017/107184
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English (en)
French (fr)
Inventor
郑志勇
易永鹏
苟生俊
袁晓日
甘高亭
杨海
彭德良
Original Assignee
广东欧珀移动通信有限公司
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Application filed by 广东欧珀移动通信有限公司 filed Critical 广东欧珀移动通信有限公司
Publication of WO2018161591A1 publication Critical patent/WO2018161591A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0261—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level
    • H04W52/0267—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by controlling user interface components
    • H04W52/027—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by controlling user interface components by controlling a display operation or backlight unit
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/724—User interfaces specially adapted for cordless or mobile telephones
    • H04M1/72448—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present application relates to the field of electronic devices, and in particular, to a method, an apparatus, a storage medium, and an electronic device for switching background gray scales for power saving.
  • Backlight control functions such as content adaptation to backlight control (Content Adaptive Brightness The Control, CABC function is used to adjust the relationship between the grayscale value of the image and the brightness of the screen backlight according to the image content displayed on the terminal screen, and can effectively reduce the brightness of the screen backlight while maintaining the image display quality.
  • CABC function Content Adaptive Brightness The Control
  • the power saving effect based on the backlight control function is currently poor, and the terminal still has a problem of high power consumption.
  • the embodiments of the present application provide a method, a device, a storage medium, and an electronic device for switching background gray scales for power saving, which can reduce power consumption of the terminal.
  • an embodiment of the present application provides a method for switching a background grayscale to save power, including:
  • the grayscale and screen backlight brightness are adjusted on the updated screen display screen based on the backlight control function.
  • the embodiment of the present application provides a device for switching a background gray scale to save power, including:
  • An image grayscale detection module is configured to detect a current grayscale of a currently displayed image in the screen if the backlight control function is in an on state;
  • a screen grayscale reduction module configured to reduce a grayscale of the screen background image to update the screen display screen if the current grayscale is higher than the first grayscale threshold
  • the backlight adjustment module is configured to adjust the grayscale and screen backlight brightness of the updated screen display screen based on the backlight control function.
  • an embodiment of the present disclosure provides a storage medium, where the storage medium stores a plurality of instructions, where the instructions are adapted to be loaded by a processor to perform a switching background grayscale provided by any one of the embodiments of the present invention. Electrical method.
  • an embodiment of the present application provides a mobile electronic device, including a memory, a processor, and a computer program stored on the memory and executable on the processor, where the processor implements the computer program The following steps:
  • the grayscale and screen backlight brightness are adjusted on the updated screen display screen based on the backlight control function.
  • the embodiments of the present application provide a method, a device, a storage medium, and an electronic device for switching background gray scales for power saving, which can reduce power consumption of the terminal.
  • FIG. 1 is a schematic flowchart of a method for switching a background gray scale to save power according to an embodiment of the present application
  • FIG. 2 is a schematic diagram of a current display image provided in an embodiment of the present application.
  • FIG. 3 is a schematic flowchart of still another method for switching a background gray scale to save power according to an embodiment of the present application
  • FIG. 4 is a schematic structural diagram of an apparatus for switching a background gray scale to save power according to an embodiment of the present application
  • FIG. 5 is a schematic structural diagram of a mobile terminal provided in an embodiment of the present application.
  • An embodiment of the present application provides a method for switching a background gray scale to save power, including:
  • the grayscale and screen backlight brightness are adjusted on the updated screen display screen based on the backlight control function.
  • reducing the grayscale of the background image of the screen includes:
  • selecting and updating a target background image of the screen from the preset at least one power saving background image includes:
  • the gray level of the mapping relationship is higher, and the gray level of the corresponding background picture is lower.
  • reducing the grayscale of the background image of the screen includes:
  • the gray scale of each pixel in the initial background image is subtracted from the preset value.
  • the grayscale boosting amplitude of the updated screen display screen is the same as the screen backlight brightness reduction amplitude based on the backlight control function.
  • detecting the current gray level of the currently displayed image in the screen includes:
  • the gray scale of each pixel of the currently displayed image in the screen is detected, and the gray scale of each pixel is counted and processed to obtain the current gray scale of the currently displayed image.
  • FIG. 1 is a schematic flowchart of a method for switching a background gray scale to save power according to an embodiment of the present disclosure.
  • the method may be performed by a device that switches background gray scales to save power, and the device may be implemented by software and/or hardware. Generally, it can be loaded in an electronic device such as a mobile terminal. As shown in FIG. 1, the method can include:
  • Step 11 If the backlight control function is in the on state, the current gray level of the currently displayed image in the screen is detected.
  • the currently displayed image in the screen may include a background image 01 and a content layer 02, such as the current display image may be an application icon interface, or an image of other application interfaces such as an instant messaging application, a calendar, a text message, or a note.
  • each current display image in the screen includes a plurality of pixels, and the gray scale of each pixel may be different.
  • the gray scale of each pixel of the currently displayed image is detected, and the gray scale of each pixel is calculated and processed to obtain the current gray level of the currently displayed image, such as each of the currently displayed images.
  • the grayscale mean of the pixel is determined to be the current grayscale of the currently displayed image. It is also possible to determine the central region of the currently displayed image, the grayscale mean value of each pixel in the statistical center region, and obtain the grayscale value of the central region according to the statistical result, as the current grayscale of the currently displayed image.
  • Step 12 If the current gray level is higher than the first gray level threshold, reduce the gray level of the screen background image to update the screen display screen.
  • Each sub-pixel in the screen display, the light source behind it can show different brightness levels, and the gray level represents the level of different brightness from the darkest to the brightest.
  • the first grayscale threshold may be an empirical value determined by the user. For example, if the 8-bit panel is still taken as an example, the first grayscale threshold may be 200.
  • the first grayscale threshold may also be determined according to a history of the backlight control function, such as a grayscale value of the historical image content for each historical image content displayed on the screen, and a screen backlight for adjusting the historical image based on the backlight control function. Brightness, each target history image in which the screen backlight brightness is higher than the brightness threshold is determined, and the minimum gray level value among the grayscale values of the respective target history images may be used as the first gray level threshold.
  • the backlight control function saves the power of the dark picture (low grayscale picture) better than the light picture of the light picture (high gray level picture), because the gray picture space of the picture itself can be increased, so the corresponding The space for lowering the brightness of the backlight is also large. Specifically, if the current gray level is higher than the first gray level threshold, the grayscale lifting space of the currently displayed image is smaller, and accordingly, the screen backlight brightness has a smaller space for decreasing. By reducing the grayscale of the background image of the screen, the grayscale of the screen display including the background image of the screen and the content layer can be reduced, thereby increasing the space for reducing the brightness of the screen backlight.
  • Step 13 Adjust the grayscale and the brightness of the screen backlight on the updated screen display screen based on the backlight control function.
  • the backlight control function has the same grayscale increase range as the screen backlight brightness reduction on the updated screen display screen, so that the brightness of the image is substantially consistent before and after the processing.
  • the embodiment of the present application detects the current gray level of the currently displayed image in the screen, and if the detected current gray level is higher than the first gray level threshold, the gray scale of the screen background image is reduced. It can improve the grayscale of the screen display to improve the space, and then adjust the grayscale and screen backlight brightness of the screen display based on the backlight control function. The reduction of the brightness of the screen backlight can be increased, so that the power consumption of the terminal can be reduced.
  • reducing the gray level of the screen background image may include:
  • At least one power saving background image is preset in the terminal, and the power saving background image is used to reduce the gray scale of the currently displayed image in the screen.
  • the second grayscale threshold may be an empirical value determined by the user, or may be determined according to a history of the backlight control function.
  • the gray scale of the screen background image can be directly reduced by the preset power saving background image, which can not only effectively improve the brightness reduction of the screen backlight, but also improve the update efficiency of the screen display screen, thereby improving the efficiency of switching the background gray scale for power saving.
  • reducing the gray level of the background image of the screen may further include:
  • the gray scale of each pixel in the initial background image is subtracted from the preset value.
  • the initial background image refers to the background image of the currently displayed image.
  • the preset background value corresponding to the initial background image may be one, or may be multiple. If the current display image is divided into multiple sub-regions, the grayscale mean values of the sub-regions are separately counted, according to the pre-built grayscale mean value and the preset value.
  • the mapping relationship between the sub-regions determines the value corresponding to the gray-scale mean of each sub-region, wherein the higher the gray-scale mean value is, the higher the preset value is.
  • the method for switching the background gray scale to save power may include:
  • Step 21 If the backlight control function is in an on state, the current gray level of the currently displayed image in the screen is detected.
  • Step 22 Determine a current gray level to which the current gray level belongs.
  • the terminal has a plurality of grayscale levels preset, and a grayscale value range corresponding to each grayscale level, so that the current grayscale level to which the current grayscale belongs can be determined.
  • Step 23 Determine, according to a mapping relationship between the preset grayscale level and the background image, a target background image that matches the current grayscale level to update the screen display screen.
  • the gray level of the mapping relationship is higher, and the gray level of the corresponding background picture is lower.
  • the gray level of the background image is lower.
  • Step 24 Perform grayscale and screen backlight brightness adjustment on the updated screen display screen based on the backlight control function.
  • the embodiment of the present application further provides a device for switching background gray scales for power saving, including:
  • An image grayscale detection module is configured to detect a current grayscale of a currently displayed image in the screen if the backlight control function is in an on state;
  • a screen grayscale reduction module configured to reduce a grayscale of the screen background image to update the screen display screen if the current grayscale is higher than the first grayscale threshold
  • the backlight adjustment module is configured to adjust the grayscale and screen backlight brightness of the updated screen display screen based on the backlight control function.
  • the screen grayscale reduction module is specifically configured to:
  • the screen grayscale reduction module is specifically configured to:
  • the gray level of the mapping relationship is higher, and the gray level of the corresponding background picture is lower.
  • the screen grayscale reduction module is specifically configured to:
  • the gray scale of each pixel in the initial background image is subtracted from the preset value.
  • FIG. 4 is a schematic structural diagram of an apparatus for switching a background gray scale to perform power saving according to an embodiment of the present disclosure, where the apparatus may be configured in a mobile terminal.
  • the specific structure of the apparatus for switching the background gray scale to save power may include:
  • the image gray level detecting module 31 is configured to detect a current gray level of the currently displayed image in the screen if the backlight control function is in an on state;
  • the screen grayscale reduction module 32 is configured to reduce the grayscale of the screen background image to update the screen display screen if the current grayscale is higher than the first grayscale threshold;
  • the backlight adjustment module 33 is configured to perform grayscale and screen backlight brightness adjustment on the updated screen display screen based on the backlight control function.
  • the screen grayscale reduction module 32 may be specifically used to:
  • the screen grayscale reduction module 32 may be specifically used to:
  • the screen grayscale reduction module 32 may be specifically used to:
  • the gray scale of each pixel in the initial background image is subtracted from the preset value.
  • the backlight adjustment module 33 adjusts the grayscale increase amplitude of the updated screen display screen to be the same as the reduction of the screen backlight brightness based on the backlight control function.
  • the image grayscale detection module 31 is specifically configured to:
  • the gray scale of each pixel of the currently displayed image in the screen is detected, and the gray scale of each pixel is counted and processed to obtain the current gray scale of the currently displayed image.
  • the method for switching the background gray scale to save power and the method for switching the background gray scale to save power provided by any embodiment of the present application belong to the same inventive concept, and can perform the switching background gray scale provided by any embodiment of the present application.
  • the electrical method has the corresponding functional modules and beneficial effects of performing the method of switching the background gray scale to save power. For the technical details that are not described in detail in this embodiment, refer to the method for switching the background gray scale to save power provided by any embodiment of the present application.
  • An embodiment of the present application provides an electronic device, which may include a memory, a processor, and a computer program stored on the memory and executable on the processor. For example, perform the following steps:
  • the grayscale and screen backlight brightness are adjusted on the updated screen display screen based on the backlight control function.
  • the electronic device may be a device such as a mobile terminal, such as a mobile phone or a tablet computer.
  • FIG. 5 is a schematic structural diagram of a mobile terminal according to an embodiment of the present disclosure.
  • the illustrated smart phone 400 may include: a memory 401 and a central processing unit (Central). Processing Unit, hereinafter referred to as CPU) 402, peripheral interface 403, RF circuit 405, audio circuit 406, speaker 411, power management chip 408, input/output (I/O) subsystem 409, other input/control devices 410, and external ports 404, these components communicate via one or more communication buses or signal lines 407.
  • CPU central processing unit
  • the illustrated smartphone 400 is merely one example of a mobile terminal, and that the smartphone 400 may have more or fewer components than those shown in the figures, two or more components may be combined, or Can have different component configurations.
  • the various components shown in the figures can be implemented in hardware, software, or a combination of hardware and software, including one or more signal processing and/or application specific integrated circuits.
  • the following describes a smart phone for switching the background gray scale for power saving provided in this embodiment.
  • Memory 401 can be accessed by a CPU (abbreviated as processor) 402, a peripheral interface 403, etc., and the memory 401 can include a high speed random access memory, and can also include a non-volatile memory, such as one or more disk storage devices, Flash memory devices, or other volatile solid-state memory devices.
  • processor abbreviated as processor
  • peripheral interface 403 a peripheral interface
  • non-volatile memory such as one or more disk storage devices, Flash memory devices, or other volatile solid-state memory devices.
  • Peripheral interface 403 which can connect the input and output peripherals of the device to CPU 402 and memory 401.
  • I/O Subsystem 409 can connect input and output peripherals on the device, such as touch screen 402 and other input/control devices 410, to peripheral interface 403.
  • the I/O subsystem 409 can include a display controller 4091 and one or more input controllers 4092 for controlling other input/control devices 410.
  • one or more input controllers 4092 receive electrical signals from other input/control devices 410 or transmit electrical signals to other input/control devices 410, and other input/control devices 410 may include physical buttons (press buttons, rocker buttons, etc.) ), dial, slide switch, joystick or click on the wheel.
  • the input controller 4092 can be connected to any of the following: a keyboard, an infrared port, a USB interface, and a pointing device such as a mouse.
  • Touch screen 412 The touch screen 412 is an input interface and an output interface between the user terminal and the user, and displays the visual output to the user.
  • the visual output may include graphics, text, icons, or video.
  • Display controller 4091 in I/O subsystem 409 receives electrical signals from touch screen 412 or transmits electrical signals to touch screen 412.
  • the touch screen 412 detects the contact on the touch screen, and the display controller 4091 converts the detected contact into an interaction with the user interface object displayed on the touch screen 412, ie, realizes human-computer interaction, and the user interface object displayed on the touch screen 412 may be running.
  • the icon of the game, the icon of the network to the corresponding network, and the like.
  • the device may also include a light mouse, which is a touch sensitive surface that does not display a visual output, or an extension of a touch sensitive surface formed by the touch screen.
  • the RF circuit 405 is mainly used for establishing communication between the mobile phone and the wireless network (ie, the network side), and realizing data reception and transmission between the mobile phone and the wireless network. For example, sending and receiving short messages, emails, and the like. Specifically, the RF circuit 405 receives and transmits an RF signal, which is also referred to as an electromagnetic signal, and the RF circuit 405 converts the electrical signal into an electromagnetic signal or converts the electromagnetic signal into an electrical signal, and through the electromagnetic signal and communication network and other devices Communicate.
  • an RF signal which is also referred to as an electromagnetic signal
  • RF circuitry 405 may include known circuitry for performing these functions including, but not limited to, an antenna system, an RF transceiver, one or more amplifiers, a tuner, one or more oscillators, a digital signal processor, a CODEC chip Group, user identification module (Subscriber Identity Module, SIM) and more.
  • an antenna system an RF transceiver, one or more amplifiers, a tuner, one or more oscillators, a digital signal processor, a CODEC chip Group, user identification module (Subscriber Identity Module, SIM) and more.
  • SIM Subscriber Identity Module
  • the audio circuit 406 is mainly used to receive audio data from the peripheral interface 403, convert the audio data into an electrical signal, and transmit the electrical signal to the speaker 411.
  • the speaker 411 is configured to restore the voice signal received by the mobile phone from the wireless network through the RF circuit 405 to sound and play the sound to the user.
  • the power management chip 408 is used for power supply and power management of the hardware connected to the CPU 402, the I/O subsystem, and the peripheral interface.
  • the CPU that is, the processor 402 provided by the embodiment of the present application, implements the computer program to implement the following steps:
  • the grayscale and screen backlight brightness are adjusted on the updated screen display screen based on the backlight control function.
  • the processor 402 is configured to perform the following steps when reducing the grayscale of the background image of the screen:
  • the processor 402 when selecting and updating a target background image of the screen from the preset at least one power saving background image, the processor 402 is configured to perform the following steps:
  • the processor 402 is configured to perform the following steps when reducing the grayscale of the background image of the screen:
  • the gray scale of each pixel in the initial background image is subtracted from the preset value.
  • the gray level of the mapping relationship is higher, and the gray level of the corresponding background picture is lower.
  • the grayscale boosting amplitude of the updated screen display screen is the same as the screen backlight brightness reduction amplitude based on the backlight control function.
  • the processor 402 when detecting the current gray level of the image currently displayed in the screen, the processor 402 is configured to perform the following steps:
  • the gray scale of each pixel of the currently displayed image in the screen is detected, and the gray scale of each pixel is counted and processed to obtain the current gray scale of the currently displayed image.
  • the program may be stored in a computer readable storage medium, and the storage medium may include: Read only memory (ROM, Read Only Memory), Random Access Memory (RAM), disk or CD.
  • ROM Read only memory
  • RAM Random Access Memory

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  • Liquid Crystal Display Device Control (AREA)

Abstract

本申请实施例公开了一种切换背景灰阶进行省电的方法、装置、存储介质及电子设备；该方法包括：若背光控制功能处于开启状态，则检测屏幕中当前显示图像的当前灰阶；若所述当前灰阶高于第一灰阶阈值，则降低屏幕背景图的灰阶，以更新屏幕显示画面；基于背光控制功能对更新的屏幕显示画面进行灰阶和屏幕背光亮度的调整。

Description

切换背景灰阶进行省电的方法、装置、存储介质及电子设备
本申请要求于2017年03月25日提交中国专利局、申请号为201710142356.2、发明名称为“一种切换背景灰阶进行省电的方法、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
本申请涉及电子设备领域，尤其是一种切换背景灰阶进行省电的方法、装置、存储介质及电子设备。
 背景技术
随着移动通信技术和计算机技术的快速发展，诸如智能手机和平板电脑之类的移动终端已经成为人们生活中不可缺少的通信工具。如何兼顾终端的低功耗需求以及屏幕显示的图像质量是图像处理领域亟需解决的问题。
背光控制功能例如内容适应背光控制（Content Adaptive Brightness Control，CABC）功能用于依据终端屏幕显示的图像内容来调整图像的灰阶值与屏幕背光亮度之间的关系，可以在有效降低屏幕背光亮度的同时，保持图像的显示质量。然而，受屏幕显示的图像内容限制，目前基于背光控制功能的省电效果较差，导致终端仍然存在功耗较高的问题。
 技术问题
本申请实施例提供一种切换背景灰阶进行省电的方法、装置、存储介质及电子设备，可以降低终端的功耗。
 技术解决方案
第一方面，本申请实施例提供了一种切换背景灰阶进行省电的方法，包括：
若背光控制功能处于开启状态，则检测屏幕中当前显示图像的当前灰阶；
若所述当前灰阶于第一灰阶阈值，则降低屏幕背景图的灰阶，以更新屏幕显示画面；
基于背光控制功能对更新的屏幕显示画面进行灰阶和屏幕背光亮度的调整。
第二方面，本申请实施例提供了一种切换背景灰阶进行省电的装置，包括：
图像灰阶检测模块，用于若背光控制功能处于开启状态，则检测屏幕中当前显示图像的当前灰阶；
屏幕灰阶降低模块，用于若所述当前灰阶高于第一灰阶阈值，则降低屏幕背景图的灰阶，以更新屏幕显示画面；
背光调整模块，用于基于背光控制功能对更新的屏幕显示画面进行灰阶和屏幕背光亮度的调整。
第三方面，本申请实施例提供了一种存储介质所述存储介质中存储有多条指令，所述指令适于由处理器加载以执行本发明实施例任一提供的切换背景灰阶进行省电的方法。
第四方面，本申请实施例提供了一种移电子设备，包括存储器、处理器及存储在存储器上并可在处理器上运行的计算机程序，其中，所述处理器执行所述计算机程序时实现以下步骤：
若背光控制功能处于开启状态，则检测屏幕中当前显示图像的当前灰阶；
若所述当前灰阶高于第一灰阶阈值，则降低屏幕背景图的灰阶，以更新屏幕显示画面；
基于背光控制功能对更新的屏幕显示画面进行灰阶和屏幕背光亮度的调整。
 有益效果
本申请实施例提供一种切换背景灰阶进行省电的方法、装置、存储介质及电子设备，可以降低终端的功耗。
 附图说明
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域技术人员来讲，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为本申请实施例中提供的一种切换背景灰阶进行省电的方法的流程示意图；
图2为本申请实施例中提供的一种当前显示图像的示意图；
图3为本申请实施例中提供的又一种切换背景灰阶进行省电的方法的流程示意图；
图4为本申请实施例中提供的一种切换背景灰阶进行省电的装置的结构示意图；
图5为本申请实施例中提供的一种移动终端的结构示意图。
 本发明的最佳实施方式
下面结合附图和实施例对本申请作进一步的详细说明。可以理解的是，此处所描述的具体实施例仅仅用于解释本申请，而非对本申请的限定。另外还需要说明的是，为了便于描述，附图中仅示出了与本申请相关的部分而非全部结构。
在更加详细地讨论示例性实施例之前应当提到的是，一些示例性实施例被描述成作为流程图描绘的处理或方法。虽然流程图将各步骤描述成顺序的处理，但是其中的许多步骤可以被并行地、并发地或者同时实施。此外，各步骤的顺序可以被重新安排。当其操作完成时所述处理可以被终止，但是还可以具有未包括在附图中的附加步骤。所述处理可以对应于方法、函数、规程、子例程、子程序等等。
本申请实施例提供了一种切换背景灰阶进行省电的方法，包括：
若背光控制功能处于开启状态，则检测屏幕中当前显示图像的当前灰阶；
若所述当前灰阶高于第一灰阶阈值，则降低屏幕背景图的灰阶，以更新屏幕显示画面；
基于背光控制功能对更新的屏幕显示画面进行灰阶和屏幕背光亮度的调整。在一实施例中，降低屏幕背景图的灰阶，包括：
从预设的至少一个省电背景图中选择并更新屏幕的目标背景图，其中所述省电背景图的灰阶小于第二灰阶阈值，其中所述第二灰阶阈值小于所述第一灰阶阈值。
在一实施例中，从预设的至少一个省电背景图中选择并更新屏幕的目标背景图，包括：
确定所述当前灰阶所属的当前灰阶等级；
依据预设的灰阶等级与背景图片之间的映射关系，确定与所述当前灰阶等级匹配的目标背景图片，以更新屏幕显示画面。
在一实施例中，所述映射关系中灰阶等级越高对应的背景图片的灰阶越低。
在一实施例中，降低屏幕背景图的灰阶，包括：
将所述初始背景图中各像素的灰阶均减去预设数值。
在一实施例中，基于背光控制功能对更新后的屏幕显示画面的灰阶提升幅度与对屏幕背光亮度降低幅度相同。
在一实施例中，检测屏幕中当前显示图像的当前灰阶，包括：
对屏幕中当前显示图像的每一个像素的灰阶均进行检测，统计并处理每个像素的灰阶得到当前显示图像的当前灰阶。
图1为本申请实施例中提供的一种切换背景灰阶进行省电的方法的流程示意图，该方法可以由切换背景灰阶进行省电的装置执行，该装置可由软件和/或硬件实现，一般可加载在电子设备如移动终端中。如图1所示，该方法可以包括：
步骤11、若背光控制功能处于开启状态，则检测屏幕中当前显示图像的当前灰阶。
参考图2，屏幕中当前显示图像可以包含背景图01和内容图层02，如当前显示图像可以是应用图标界面，或者即时通信应用、日历、短信或记事等其他应用界面的图像。
具体的，屏幕中每个当前显示图像均包含多个像素，每个像素的灰阶可以不同。获取屏幕中当前显示图像后，对当前显示图像的每一个像素的灰阶均进行检测，统计并处理每个像素的灰阶得到当前显示图像的当前灰阶，如可以将当前显示图像中每个像素的灰阶均值确定为当前显示图像的当前灰阶。也可以确定当前显示图像的中心区域，统计中心区域中每个像素的灰阶均值，并依据统计结果得到中心区域的灰阶值，作为当前显示图像当前灰阶。
步骤12、若所述当前灰阶高于第一灰阶阈值，则降低屏幕背景图的灰阶，以更新屏幕显示画面。
屏幕显示画面中每个子像素，背后的光源都可以显现出不同的亮度级别，而灰阶代表了由最暗到最亮之间不同亮度的层次级别。这中间层级越多，所能够呈现的画面效果也就越细腻。以8位面板(panel)为例，等于256个亮度层次，即256灰阶。
其中，第一灰阶阈值可以是用户确定的经验值，如仍以8位面板为例第一灰阶阈值可以是200。第一灰阶阈值也可以依据背光控制功能的历史记录确定，如针对屏幕显示的每一历史图像内容，统计该历史图像内容的灰阶值以及基于背光控制功能对该历史图像进行调整的屏幕背光亮度，确定屏幕背光亮度高于亮度阈值的各目标历史图像，并可以将各目标历史图像的灰阶值中的最小灰阶值作为第一灰阶阈值。
背光控制功能对深色画面（低灰阶画面）省电效果好于对浅色画面（高灰阶画面）省电效果，因为深色画面可以提高的画面本身的灰阶空间大，那么相应的往下降低背光亮度的空间也大。具体的，若当前灰阶高于第一灰阶阈值，则当前显示图像的灰阶提升空间较小，相应地屏幕背光亮度的下降空间较小。通过降低屏幕背景图的灰阶，可以降低包含屏幕背景图和内容图层的屏幕显示画面的灰阶，从而可以提高屏幕背光亮度的下降空间。
步骤13、基于背光控制功能对更新的屏幕显示画面进行灰阶和屏幕背光亮度的调整。
具体的，背光控制功能对更新后的屏幕显示画面的灰阶提升幅度与对屏幕背光亮度降低幅度相同，可以使图像的亮度在处理前后基本保持一致。
本申请实施例在背光控制功能处于开启状态过程中，通过检测屏幕中当前显示图像的当前灰阶，若检测到的当前灰阶高于第一灰阶阈值，则降低屏幕背景图的灰阶，可以提高屏幕显示画面的灰阶提高空间，随后基于背光控制功能对屏幕显示画面进行灰阶和屏幕背光亮度的调整。可以提高屏幕背光亮度的下降调整空间，从而可以降低终端的功耗。
在一实施例中，示例性的，降低屏幕背景图的灰阶，可以包括：
从预设的至少一个省电背景图中选择并更新屏幕的目标背景图，其中所述省电背景图的灰阶小于第二灰阶阈值，其中所述第二灰阶阈值小于所述第一灰阶阈值。
其中，终端中预先设置有至少一个省电背景图，省电背景图用于降低屏幕中当前显示图像的灰阶。其中第二灰阶阈值可以是由用户确定的经验值，也可以是依据背光控制功能的历史记录确定的。直接通过预设的省电背景图来降低屏幕背景图的灰阶，不仅可以有效提升屏幕背光亮度降低幅度，还可以提高屏幕显示画面更新效率，从而提高切换背景灰阶进行省电的效率。
在一实施例中，示例性的，降低屏幕背景图的灰阶，还可以包括：
将所述初始背景图中各像素的灰阶均减去预设数值。
其中，初始背景图指的是当前显示图像的背景图。初始背景图对应的预设数值可以是一个，也可以是多个如将当前显示图像划分为多个子区域，分别统计各子区域的灰阶均值，依据预先构建的灰阶均值与预设数值之间的映射关系，确定各子区域的灰阶均值所对应的数值，其中该映射关系中灰阶均值越高对应的预设数值越高。
在上述实施例的基础上，参考图3，为了进一步提高省电效果，切换背景灰阶进行省电的方法可以包括：
步骤21、若背光控制功能处于开启状态，则检测屏幕中当前显示图像的当前灰阶。
步骤22、确定所述当前灰阶所属的当前灰阶等级。
其中，终端中预先设置有多个灰阶等级，以及各灰阶等级对应的灰阶值范围，故可以确定当前灰阶所属的当前灰阶等级。
步骤23、依据预设的灰阶等级与背景图片之间的映射关系，确定与所述当前灰阶等级匹配的目标背景图片，以更新屏幕显示画面。
其中，所述映射关系中灰阶等级越高对应的背景图片的灰阶越低。灰阶等级越高则灰阶提升幅度越低，为了保持降功耗的效果，背景图片的灰阶越低。
步骤24、基于背光控制功能对更新的屏幕显示画面进行灰阶和屏幕背光亮度的调整。
本申请实施例还提供了一种切换背景灰阶进行省电的装置，包括：
图像灰阶检测模块，用于若背光控制功能处于开启状态，则检测屏幕中当前显示图像的当前灰阶；
屏幕灰阶降低模块，用于若所述当前灰阶高于第一灰阶阈值，则降低屏幕背景图的灰阶，以更新屏幕显示画面；
背光调整模块，用于基于背光控制功能对更新的屏幕显示画面进行灰阶和屏幕背光亮度的调整。
在一实施例中，所述屏幕灰阶降低模块具体用于：
从预设的至少一个省电背景图中选择并更新屏幕的目标背景图，其中所述省电背景图的灰阶小于第二灰阶阈值，其中所述第二灰阶阈值小于所述第一灰阶阈值。
在一实施例中，所述屏幕灰阶降低模块具体用于：
确定所述当前灰阶所属的当前灰阶等级；
依据预设的灰阶等级与背景图片之间的映射关系，确定与所述当前灰阶等级匹配的目标背景图片，以更新屏幕显示画面。
在一实施例中，所述映射关系中灰阶等级越高对应的背景图片的灰阶越低。
在一实施例中，所述屏幕灰阶降低模块具体用于：
将所述初始背景图中各像素的灰阶均减去预设数值。
图4为本申请实施例中提供的一种切换背景灰阶进行省电的装置的结构示意图，该装置可以配置于移动终端中。如图4所示，该切换背景灰阶进行省电的装置具体结构可以包括：
图像灰阶检测模块31，用于若背光控制功能处于开启状态，则检测屏幕中当前显示图像的当前灰阶；
屏幕灰阶降低模块32，用于若所述当前灰阶高于第一灰阶阈值，则降低屏幕背景图的灰阶，以更新屏幕显示画面；
背光调整模块33，用于基于背光控制功能对更新的屏幕显示画面进行灰阶和屏幕背光亮度的调整。
在一实施例中，示例性的，所述屏幕灰阶降低模块32具体可以用于：
从预设的至少一个省电背景图中选择并更新屏幕的目标背景图，其中所述省电背景图的灰阶小于第二灰阶阈值，其中所述第二灰阶阈值小于所述第一灰阶阈值。
在一实施例中，示例性的，所述屏幕灰阶降低模块32具体可以用于：
确定所述当前灰阶所属的当前灰阶等级；
依据预设的灰阶等级与背景图片之间的映射关系，确定与所述当前灰阶等级匹配的目标背景图片，以更新屏幕显示画面。
在一实施例中，示例性的，所述映射关系中灰阶等级越高对应的背景图片的灰阶越低。
在一实施例中，示例性的，所述屏幕灰阶降低模块32具体可以用于：
将所述初始背景图中各像素的灰阶均减去预设数值。
在一实施例中，所述背光调整模块33基于背光控制功能对更新后的屏幕显示画面的灰阶提升幅度与对屏幕背光亮度降低幅度相同。
在一实施例中，所述图像灰阶检测模块31，具体用于：
对屏幕中当前显示图像的每一个像素的灰阶均进行检测，统计并处理每个像素的灰阶得到当前显示图像的当前灰阶。
上述切换背景灰阶进行省电的装置，与本申请任意实施例所提供的切换背景灰阶进行省电的方法属于同一发明构思，可执行本申请任意实施例所提供的切换背景灰阶进行省电的方法，具备执行切换背景灰阶进行省电的方法相应的功能模块和有益效果。未在本实施例中详尽描述的技术细节，可参见本申请任意实施例提供的切换背景灰阶进行省电的方法。
本申请实施例提供了一种电子设备，该电子设备可以包括存储器、处理器及存储在存储器上并可在处理器上运行的计算机程序。比如，执行以下步骤：
若背光控制功能处于开启状态，则检测屏幕中当前显示图像的当前灰阶；
若所述当前灰阶高于第一灰阶阈值，则降低屏幕背景图的灰阶，以更新屏幕显示画面；
基于背光控制功能对更新的屏幕显示画面进行灰阶和屏幕背光亮度的调整。
其中，电子设备可以为移动终端等设备，如手机、平板电脑等。
图5为本申请实施例中提供的一种移动终端的结构示意图，如图5所示，图示智能手机400可以包括：存储器401、中央处理器（Central Processing Unit，以下简称CPU）402、外设接口403、RF电路405、音频电路406、扬声器411、电源管理芯片408、输入/输出（I/O）子系统409、其它输入/控制设备410以及外部端口404，这些部件通过一个或多个通信总线或信号线407来通信。
应该理解的是，图示智能手机400仅仅移动终端的一个范例，并且智能手机400可以具有比图中所示出的更多的或者更少的部件，可以组合两个或更多的部件，或者可以具有不同的部件配置。图中所示出的各种部件可以在包括一个或多个信号处理和/或专用集成电路在内的硬件、软件、或硬件和软件的组合中实现。
下面就本实施例提供的用于切换背景灰阶进行省电的智能手机进行详细的描述。
存储器401：存储器401可以被CPU（简称处理器）402、外设接口403等访问，存储器401可以包括高速随机存取存储器，还可以包括非易失性存储器，例如一个或多个磁盘存储器件、闪存器件、或其它易失性固态存储器件。
外设接口403，外设接口可以将设备的输入和输出外设连接到CPU402和存储器401。
I/O子系统409：I/O子系统409可以将设备上的输入输出外设，例如触摸屏402和其它输入/控制设备410，连接到外设接口403。I/O子系统409可以包括显示控制器4091和用于控制其它输入/控制设备410的一个或多个输入控制器4092。其中，一个或多个输入控制器4092从其它输入/控制设备410接收电信号或者向其它输入/控制设备410发送电信号，其它输入/控制设备410可以包括物理按钮（按压按钮、摇臂按钮等）、拨号盘、滑动开关、操纵杆或点击滚轮。值得说明的是，输入控制器4092可以与以下任一个连接：键盘、红外端口、USB接口以及诸如鼠标的指示设备。
触摸屏412：触摸屏412是用户终端与用户之间的输入接口和输出接口，将可视输出显示给用户，可视输出可以包括图形、文本、图标或视频等。
I/O子系统409中的显示控制器4091从触摸屏412接收电信号或者向触摸屏412发送电信号。触摸屏412检测触摸屏上的接触，显示控制器4091将检测到的接触转换为与显示在触摸屏412上的用户界面对象的交互，即实现人机交互，显示在触摸屏412上的用户界面对象可以是运行游戏的图标、联网到相应网络的图标等。值得说明的是，设备还可以包括光鼠，光鼠是不显示可视输出的触摸敏感表面，或者是由触摸屏形成的触摸敏感表面的延伸。
RF电路405，主要用于建立手机与无线网络（即网络侧）的通信，实现手机与无线网络的数据接收和发送。例如收发短信息、电子邮件等。具体地，RF电路405接收并发送RF信号，RF信号也称为电磁信号，RF电路405将电信号转换为电磁信号或将电磁信号转换为电信号，并且通过该电磁信号与通信网络以及其它设备进行通信。RF电路405可以包括用于执行这些功能的已知电路，其包括但不限于天线系统、RF收发机、一个或多个放大器、调谐器、一个或多个振荡器、数字信号处理器、CODEC芯片组、用户标识模块(Subscriber Identity Module，SIM)等等。
音频电路406，主要用于从外设接口403接收音频数据，将该音频数据转换为电信号，并且将该电信号发送给扬声器411。
扬声器411，用于将手机通过RF电路405从无线网络接收的语音信号，还原为声音并向用户播放该声音。
电源管理芯片408，用于为CPU402、I/O子系统及外设接口所连接的硬件进行供电及电源管理。
本申请实施例提供的CPU即处理器402执行所述计算机程序时实现以下步骤：
若背光控制功能处于开启状态，则检测屏幕中当前显示图像的当前灰阶；
若所述当前灰阶高于第一灰阶阈值，则降低屏幕背景图的灰阶，以更新屏幕显示画面；
基于背光控制功能对更新的屏幕显示画面进行灰阶和屏幕背光亮度的调整。
在一实施例中，在降低屏幕背景图的灰阶时，所述处理器402用于执行以下步骤：
从预设的至少一个省电背景图中选择并更新屏幕的目标背景图，其中所述省电背景图的灰阶小于第二灰阶阈值，其中所述第二灰阶阈值小于所述第一灰阶阈值。
在一实施例中，在从预设的至少一个省电背景图中选择并更新屏幕的目标背景图时，所述处理器402用于执行以下步骤：
确定所述当前灰阶所属的当前灰阶等级；
依据预设的灰阶等级与背景图片之间的映射关系，确定与所述当前灰阶等级匹配的目标背景图片，以更新屏幕显示画面。
在一实施例中，在降低屏幕背景图的灰阶时，所述处理器402用于执行以下步骤：
将所述初始背景图中各像素的灰阶均减去预设数值。
在一实施例中，所述映射关系中灰阶等级越高对应的背景图片的灰阶越低。
在一实施例中，基于背光控制功能对更新后的屏幕显示画面的灰阶提升幅度与对屏幕背光亮度降低幅度相同。
在一实施例中，在检测屏幕中当前显示图像的当前灰阶时，所述处理器402用于执行以下步骤：
对屏幕中当前显示图像的每一个像素的灰阶均进行检测，统计并处理每个像素的灰阶得到当前显示图像的当前灰阶。
本领域普通技术人员可以理解上述实施例的各种方法中的全部或部分步骤是可以通过程序来指令相关的硬件来完成，该程序可以存储于一计算机可读存储介质中，存储介质可以包括：只读存储器（ROM，Read Only Memory）、随机存取记忆体（RAM，Random Access Memory）、磁盘或光盘等。
上述仅为本申请的较佳实施例及所运用技术原理。本领域技术人员会理解，本申请不限于这里所述的特定实施例，对本领域技术人员来说能够进行各种明显的变化、重新调整和替代而不会脱离本申请的保护范围。因此，虽然通过以上实施例对本申请进行了较为详细的说明，但是本申请不仅仅限于以上实施例，在不脱离本申请构思的情况下，还可以包括更多其它等效实施例，而本申请的范围由所附的权利要求范围决定。

Claims (20)

  1. 一种切换背景灰阶进行省电的方法，其中，包括：
    若背光控制功能处于开启状态，则检测屏幕中当前显示图像的当前灰阶；
    若所述当前灰阶高于第一灰阶阈值，则降低屏幕背景图的灰阶，以更新屏幕显示画面；
    基于背光控制功能对更新的屏幕显示画面进行灰阶和屏幕背光亮度的调整。
  2. 根据权利要求1所述的方法，其中，降低屏幕背景图的灰阶，包括：
    从预设的至少一个省电背景图中选择并更新屏幕的目标背景图，其中所述省电背景图的灰阶小于第二灰阶阈值，其中所述第二灰阶阈值小于所述第一灰阶阈值。
  3. 根据权利要求2所述的方法，其中，从预设的至少一个省电背景图中选择并更新屏幕的目标背景图，包括：
    确定所述当前灰阶所属的当前灰阶等级；
    依据预设的灰阶等级与背景图片之间的映射关系，确定与所述当前灰阶等级匹配的目标背景图片，以更新屏幕显示画面。
  4. 根据权利要求3所述的方法，其中，所述映射关系中灰阶等级越高对应的背景图片的灰阶越低。
  5. 根据权利要求1所述的方法，其中，降低屏幕背景图的灰阶，包括：
    将所述初始背景图中各像素的灰阶均减去预设数值。
  6. 根据权利要求1所述的方法，其中，基于背光控制功能对更新后的屏幕显示画面的灰阶提升幅度与对屏幕背光亮度降低幅度相同。
  7. 根据权利要求1所述的方法，其中，检测屏幕中当前显示图像的当前灰阶，包括：
    对屏幕中当前显示图像的每一个像素的灰阶均进行检测，统计并处理每个像素的灰阶得到当前显示图像的当前灰阶。
  8. 一种切换背景灰阶进行省电的装置，其中，包括：
    图像灰阶检测模块，用于若背光控制功能处于开启状态，则检测屏幕中当前显示图像的当前灰阶；
    屏幕灰阶降低模块，用于若所述当前灰阶高于第一灰阶阈值，则降低屏幕背景图的灰阶，以更新屏幕显示画面；
    背光调整模块，用于基于背光控制功能对更新的屏幕显示画面进行灰阶和屏幕背光亮度的调整。
  9. 根据权利要求8所述的装置，其中，所述屏幕灰阶降低模块具体用于：
    从预设的至少一个省电背景图中选择并更新屏幕的目标背景图，其中所述省电背景图的灰阶小于第二灰阶阈值，其中所述第二灰阶阈值小于所述第一灰阶阈值。
  10. 根据权利要求9所述的装置，其中，所述屏幕灰阶降低模块具体用于：
    确定所述当前灰阶所属的当前灰阶等级；
    依据预设的灰阶等级与背景图片之间的映射关系，确定与所述当前灰阶等级匹配的目标背景图片，以更新屏幕显示画面。
  11. 根据权利要求10所述的装置，其中，所述映射关系中灰阶等级越高对应的背景图片的灰阶越低。
  12. 根据权利要求8所述的装置，其中，所述屏幕灰阶降低模块具体用于：
    将所述初始背景图中各像素的灰阶均减去预设数值。
  13. 根据权利要求8所述的装置，其中，所述背光调整模块基于背光控制功能对更新后的屏幕显示画面的灰阶提升幅度与对屏幕背光亮度降低幅度相同。
  14. 根据权利要求8所述的装置，其中，所述图像灰阶检测模块，具体用于：
    对屏幕中当前显示图像的每一个像素的灰阶均进行检测，统计并处理每个像素的灰阶得到当前显示图像的当前灰阶。
  15. 一种存储介质，其中，所述存储介质中存储有多条指令，所述指令适于由处理器加载以执行如权利要求1-7任一项所述的方法。
  16. 一种电子设备，包括存储器、处理器及存储在存储器上并可在处理器上运行的计算机程序，其中，所述处理器执行所述计算机程序时实现以下步骤：
    若背光控制功能处于开启状态，则检测屏幕中当前显示图像的当前灰阶；
    若所述当前灰阶高于第一灰阶阈值，则降低屏幕背景图的灰阶，以更新屏幕显示画面；
    基于背光控制功能对更新的屏幕显示画面进行灰阶和屏幕背光亮度的调整。
  17. 根据权利要求16所述的电子设备，其中，在降低屏幕背景图的灰阶时，所述处理器用于执行以下步骤：
    从预设的至少一个省电背景图中选择并更新屏幕的目标背景图，其中所述省电背景图的灰阶小于第二灰阶阈值，其中所述第二灰阶阈值小于所述第一灰阶阈值。
  18. 根据权利要求16所述的电子设备，其中，在从预设的至少一个省电背景图中选择并更新屏幕的目标背景图时，所述处理器用于执行以下步骤：
    确定所述当前灰阶所属的当前灰阶等级；
    依据预设的灰阶等级与背景图片之间的映射关系，确定与所述当前灰阶等级匹配的目标背景图片，以更新屏幕显示画面。
  19. 根据权利要求16所述的电子设备，其中，在降低屏幕背景图的灰阶时，所述处理器用于执行以下步骤：
    将所述初始背景图中各像素的灰阶均减去预设数值。
  20. 根据权利要求16所述的电子设备，其中，所述映射关系中灰阶等级越高对应的背景图片的灰阶越低。
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