CN112637405A - Brightness adjusting method, terminal and computer readable storage medium - Google Patents
Brightness adjusting method, terminal and computer readable storage medium Download PDFInfo
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- CN112637405A CN112637405A CN202011456405.8A CN202011456405A CN112637405A CN 112637405 A CN112637405 A CN 112637405A CN 202011456405 A CN202011456405 A CN 202011456405A CN 112637405 A CN112637405 A CN 112637405A
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Abstract
The invention provides a brightness adjusting method, a terminal and a computer readable storage medium, aiming at the defect that the existing light sensor cannot accurately judge the ambient light condition. Acquiring ambient light through a light sensor to acquire ambient light information; acquiring environmental image information of an environment where the terminal is located through an image acquisition unit; and adjusting the brightness of a display screen of the terminal according to the environment light information and the environment image information. The problem of because of sheltering from when leading to the ambient light change or only a bunch of pointolite to shine the light sensor region, screen brightness automatically regulated to a state that does not adapt to current environment, that is to say that light sensor can't accurately judge whether current ambient light can really reflect the surrounding environment condition is solved, realized through the supplementary calibration function of camera, accurate detection surrounding environment luminance has improved user's use comfort.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a brightness adjustment method, a terminal, and a computer-readable storage medium.
Background
The automatic brightness adjusting function of the mobile phone screen can help people to realize automatic adjustment of the brightness of the mobile phone screen under different ambient light intensities, so that a user can use the mobile phone product more easily and comfortably. At present, a mobile phone is provided with a light sensor, the light sensor is used for automatically adjusting brightness by metering light, but the situation of misjudgment often occurs in the scheme, and the situation of ambient light cannot be accurately obtained so as to adjust the brightness of a mobile phone screen to adapt to eyes of a user. If a point light source irradiates the light sensor area, the ambient light is not obviously brightened, but the screen brightness can be automatically adjusted to a state which is not suitable for the current environment, and the use of a user is influenced.
Disclosure of Invention
The invention aims to solve the technical problem that when the ambient light changes due to shielding or only one point light source irradiates a light sensor area, the screen brightness can be automatically adjusted to a state which is not suitable for the current environment.
In order to solve the above technical problem, the present invention provides a brightness adjusting method, including:
acquiring ambient light through a light sensor to acquire ambient light information;
acquiring environmental image information of an environment where the terminal is located through an image acquisition unit;
and adjusting the brightness of a display screen of the terminal according to the environment light information and the environment image information.
Optionally, the acquiring, by the image acquisition unit, the environment image information of the environment where the terminal is located includes: judging the difference between the current ambient light information and the historical ambient light information acquired by the light sensor;
and if the difference between the current ambient light information and the historical ambient light information is larger than or equal to a first preset threshold value, acquiring the ambient image information of the environment where the terminal is located through an image acquisition unit.
Optionally, the environment image information and the current environment light information correspond to the same environment characteristic, and the environment characteristic includes:
and the difference between the environment brightness corresponding to the environment image information and the current environment light information is less than or equal to a second preset threshold value.
Optionally, the adjusting the brightness of the display screen of the terminal according to the ambient light information and the ambient image information includes:
and if the environment image information and the current environment light information correspond to the same environment characteristics, adjusting the brightness of a terminal display screen according to the current environment light information.
Optionally, in the acquiring, by the image acquisition unit, environment image information of an environment where the terminal is located, the environment image information includes at least one of the following:
image information of the environment where the terminal is located; and the image acquisition unit acquires corresponding light inlet amount information when the image is acquired.
Optionally, when the environment image information includes image information of an environment where the terminal is located, the adjusting the brightness of the display screen of the terminal according to the environment light information and the environment image information includes:
and if the ambient light information reflects that the ambient brightness is reduced and the image information reflects that a shielding object exists within the preset distance of the terminal, keeping the brightness of the display screen of the terminal unchanged.
Optionally, there is the shelter in the terminal preset distance, include:
and if the image information shows that the whole image is fuzzy or the shadow area is larger than or equal to a third preset threshold value, a shelter is arranged in the preset distance of the terminal.
Optionally, when the environment image information includes light-entering amount information corresponding to an image acquired by the image acquisition unit, the adjusting the brightness of the display screen of the terminal according to the environment light information and the environment image information includes:
and if the environment light information reflects that the environment brightness is improved, and the difference between the corresponding light inlet quantity information and the environment brightness corresponding to the current environment light information when the image acquisition unit acquires the image is larger than a second preset threshold value, keeping the brightness of the terminal display screen unchanged.
Furthermore, the invention also provides a terminal, which comprises a processor, a memory and a communication bus; the communication bus is used for realizing connection communication between the processor and the memory; the processor is used for executing one or more programs stored in the memory to realize the steps of the brightness adjusting method.
Further, the present invention also provides a computer-readable storage medium storing one or more programs, which are executable by one or more processors to implement the steps of the above-described brightness adjustment method.
Advantageous effects
The invention provides a brightness adjusting method, a terminal and a computer readable storage medium, aiming at the defect that the existing light sensor cannot accurately judge the ambient light condition. Acquiring ambient light through a light sensor to acquire ambient light information; acquiring environmental image information of an environment where the terminal is located through an image acquisition unit; and adjusting the brightness of a display screen of the terminal according to the environment light information and the environment image information. The problem of because of sheltering from when leading to the ambient light change or only a bunch of pointolite to shine the light sensor region, screen brightness automatically regulated to a state that does not adapt to current environment, that is to say that light sensor can't accurately judge whether current ambient light can really reflect the surrounding environment condition is solved, realized through the supplementary calibration function of camera, accurate detection surrounding environment luminance has improved user's use comfort.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
fig. 1 is a schematic diagram of a hardware structure of an optional mobile terminal for implementing various embodiments of the present invention.
FIG. 2 is a diagram of a wireless communication system for the mobile terminal shown in FIG. 1;
fig. 3 is a basic flowchart of a brightness adjustment method according to a first embodiment of the present invention;
FIG. 4 is a detailed flowchart of a brightness adjustment method according to a second embodiment of the present invention;
fig. 5 is a schematic structural diagram of a terminal according to a third embodiment of the present invention.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the following description, suffixes such as "module", "component", or "unit" used to denote elements are used only for facilitating the explanation of the present invention, and have no specific meaning in itself. Thus, "module", "component" or "unit" may be used mixedly.
The terminal may be implemented in various forms. For example, the terminal described in the present invention may include a mobile terminal such as a mobile phone, a tablet computer, a notebook computer, a palmtop computer, a Personal Digital Assistant (PDA), a Portable Media Player (PMP), a navigation device, a wearable device, a smart band, a pedometer, and the like, and a fixed terminal such as a Digital TV, a desktop computer, and the like.
The following description will be given by way of example of a mobile terminal, and it will be understood by those skilled in the art that the construction according to the embodiment of the present invention can be applied to a fixed type terminal, in addition to elements particularly used for mobile purposes.
Referring to fig. 1, which is a schematic diagram of a hardware structure of a mobile terminal for implementing various embodiments of the present invention, the mobile terminal 100 may include: RF (Radio Frequency) unit 101, WiFi module 102, audio output unit 103, a/V (audio/video) input unit 104, sensor 105, display unit 106, user input unit 107, interface unit 108, memory 109, processor 110, and power supply 111. Those skilled in the art will appreciate that the mobile terminal architecture shown in fig. 1 is not intended to be limiting of mobile terminals, which may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.
The following describes each component of the mobile terminal in detail with reference to fig. 1:
the radio frequency unit 101 may be configured to receive and transmit signals during information transmission and reception or during a call, and specifically, receive downlink information of a base station and then process the downlink information to the processor 110; in addition, the uplink data is transmitted to the base station. Typically, radio frequency unit 101 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 101 can also communicate with a network and other devices through wireless communication. The wireless communication may use any communication standard or protocol, including but not limited to GSM (Global System for Mobile communications), GPRS (General Packet Radio Service), CDMA2000(Code Division Multiple Access 2000), WCDMA (Wideband Code Division Multiple Access), TD-SCDMA (Time Division-Synchronous Code Division Multiple Access), FDD-LTE (Frequency Division duplex Long Term Evolution), and TDD-LTE (Time Division duplex Long Term Evolution).
WiFi belongs to short-distance wireless transmission technology, and the mobile terminal can help a user to receive and send e-mails, browse webpages, access streaming media and the like through the WiFi module 102, and provides wireless broadband internet access for the user. Although fig. 1 shows the WiFi module 102, it is understood that it does not belong to the essential constitution of the mobile terminal, and may be omitted entirely as needed within the scope not changing the essence of the invention.
The audio output unit 103 may convert audio data received by the radio frequency unit 101 or the WiFi module 102 or stored in the memory 109 into an audio signal and output as sound when the mobile terminal 100 is in a call signal reception mode, a call mode, a recording mode, a voice recognition mode, a broadcast reception mode, or the like. Also, the audio output unit 103 may also provide audio output related to a specific function performed by the mobile terminal 100 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 103 may include a speaker, a buzzer, and the like.
The a/V input unit 104 is used to receive audio or video signals. The a/V input Unit 104 may include a Graphics Processing Unit (GPU) 1041 and a microphone 1042, the Graphics processor 1041 Processing image data of still pictures or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 106. The image frames processed by the graphic processor 1041 may be stored in the memory 109 (or other storage medium) or transmitted via the radio frequency unit 101 or the WiFi module 102. The microphone 1042 may receive sounds (audio data) via the microphone 1042 in a phone call mode, a recording mode, a voice recognition mode, or the like, and may be capable of processing such sounds into audio data. The processed audio (voice) data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 101 in case of a phone call mode. The microphone 1042 may implement various types of noise cancellation (or suppression) algorithms to cancel (or suppress) noise or interference generated in the course of receiving and transmitting audio signals.
The mobile terminal 100 also includes at least one sensor 105, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor that can adjust the brightness of the display panel 1061 according to the brightness of ambient light, and a proximity sensor that can turn off the display panel 1061 and/or a backlight when the mobile terminal 100 is moved to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally, three axes), can detect the magnitude and direction of gravity when stationary, and can be used for applications of recognizing the posture of a mobile phone (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer and tapping), and the like; as for other sensors such as a fingerprint sensor, a pressure sensor, an iris sensor, a molecular sensor, a gyroscope, a barometer, a hygrometer, a thermometer, and an infrared sensor, which can be configured on the mobile phone, further description is omitted here.
The display unit 106 is used to display information input by a user or information provided to the user. The Display unit 106 may include a Display panel 1061, and the Display panel 1061 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.
The user input unit 107 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the mobile terminal. Specifically, the user input unit 107 may include a touch panel 1071 and other input devices 1072. The touch panel 1071, also referred to as a touch screen, may collect a touch operation performed by a user on or near the touch panel 1071 (e.g., an operation performed by the user on or near the touch panel 1071 using a finger, a stylus, or any other suitable object or accessory), and drive a corresponding connection device according to a predetermined program. The touch panel 1071 may include two parts of a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 110, and can receive and execute commands sent by the processor 110. In addition, the touch panel 1071 may be implemented in various types, such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. In addition to the touch panel 1071, the user input unit 107 may include other input devices 1072. In particular, other input devices 1072 may include, but are not limited to, one or more of a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and the like, and are not limited to these specific examples.
Further, the touch panel 1071 may cover the display panel 1061, and when the touch panel 1071 detects a touch operation thereon or nearby, the touch panel 1071 transmits the touch operation to the processor 110 to determine the type of the touch event, and then the processor 110 provides a corresponding visual output on the display panel 1061 according to the type of the touch event. Although the touch panel 1071 and the display panel 1061 are shown in fig. 1 as two separate components to implement the input and output functions of the mobile terminal, in some embodiments, the touch panel 1071 and the display panel 1061 may be integrated to implement the input and output functions of the mobile terminal, and is not limited herein.
The interface unit 108 serves as an interface through which at least one external device is connected to the mobile terminal 100. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 108 may be used to receive input (e.g., data information, power, etc.) from external devices and transmit the received input to one or more elements within the mobile terminal 100 or may be used to transmit data between the mobile terminal 100 and external devices.
The memory 109 may be used to store software programs as well as various data. The memory 109 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 109 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.
The processor 110 is a control center of the mobile terminal, connects various parts of the entire mobile terminal using various interfaces and lines, and performs various functions of the mobile terminal and processes data by operating or executing software programs and/or modules stored in the memory 109 and calling data stored in the memory 109, thereby performing overall monitoring of the mobile terminal. Processor 110 may include one or more processing units; preferably, the processor 110 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 110.
The mobile terminal 100 may further include a power supply 111 (e.g., a battery) for supplying power to various components, and preferably, the power supply 111 may be logically connected to the processor 110 via a power management system, so as to manage charging, discharging, and power consumption management functions via the power management system.
Although not shown in fig. 1, the mobile terminal 100 may further include a bluetooth module or the like, which is not described in detail herein.
In order to facilitate understanding of the embodiments of the present invention, a communication network system on which the mobile terminal of the present invention is based is described below.
Referring to fig. 2, fig. 2 is an architecture diagram of a communication Network system according to an embodiment of the present invention, where the communication Network system is an LTE system of a universal mobile telecommunications technology, and the LTE system includes a UE (User Equipment) 201, an E-UTRAN (Evolved UMTS Terrestrial Radio Access Network) 202, an EPC (Evolved Packet Core) 203, and an IP service 204 of an operator, which are in communication connection in sequence.
Specifically, the UE201 may be the terminal 100 described above, and is not described herein again.
The E-UTRAN202 includes eNodeB2021 and other eNodeBs 2022, among others. Among them, the eNodeB2021 may be connected with other eNodeB2022 through backhaul (e.g., X2 interface), the eNodeB2021 is connected to the EPC203, and the eNodeB2021 may provide the UE201 access to the EPC 203.
The EPC203 may include an MME (Mobility Management Entity) 2031, an HSS (Home Subscriber Server) 2032, other MMEs 2033, an SGW (Serving gateway) 2034, a PGW (PDN gateway) 2035, and a PCRF (Policy and Charging Rules Function) 2036, and the like. The MME2031 is a control node that handles signaling between the UE201 and the EPC203, and provides bearer and connection management. HSS2032 is used to provide registers to manage functions such as home location register (not shown) and holds subscriber specific information about service characteristics, data rates, etc. All user data may be sent through SGW2034, PGW2035 may provide IP address assignment for UE201 and other functions, and PCRF2036 is a policy and charging control policy decision point for traffic data flow and IP bearer resources, which selects and provides available policy and charging control decisions for a policy and charging enforcement function (not shown).
The IP services 204 may include the internet, intranets, IMS (IP Multimedia Subsystem), or other IP services, among others.
Although the LTE system is described as an example, it should be understood by those skilled in the art that the present invention is not limited to the LTE system, but may also be applied to other wireless communication systems, such as GSM, CDMA2000, WCDMA, TD-SCDMA, and future new network systems.
Based on the above mobile terminal hardware structure and communication network system, the present invention provides various embodiments of the method.
First embodiment
Fig. 3 is a basic flowchart of a brightness adjustment method provided in this embodiment, where the brightness adjustment method includes:
s301, collecting ambient light through a light sensor to obtain ambient light information;
s302, acquiring environment image information of the environment where the terminal is located through an image acquisition unit;
and S303, adjusting the brightness of a display screen of the terminal according to the environment light information and the environment image information.
In S301, ambient light is collected by the light sensor to obtain ambient light information, that is, current ambient light information is obtained in real time. The light sensor converts the collected light signal into telecommunication signal, and the telecommunication signal can be further controlled to regulate automatically according to the light of the environment of the mobile phoneMobile phone screenThe brightness of the light source (c) is,and completing automatic control.
In order to improve the accuracy of the light sensor, in S302, the image acquisition unit is used to acquire the environmental image information of the environment where the terminal is located, that is, the image acquisition unit is used to acquire the environmental image information of the environment where the terminal is located to assist the light sensor in judging the ambient light, so as to determine the ambient light more accurately.
Specifically, in S302, it is determined whether there is a difference between the current ambient light information and the historical ambient light information acquired by the light sensor, and if the difference between the current ambient light information and the historical ambient light information is greater than or equal to a first preset threshold, the image acquisition unit is used to acquire the ambient image information of the environment where the terminal is located. That is, whether the ambient light changes is judged, if the ambient light changes, and the change exceeds a first preset threshold value, the image acquisition unit is called to acquire the ambient image information of the environment where the terminal is located, namely, a mobile phone camera is opened, ambient light is detected, and an object in front of the lens is subjected to image imaging. This step is through judging the ambient light that the camera detected, and/or whether the imaging effect through the camera leads to ambient light to appear the difference because there is the object to shelter from to supplementary light sensor judges ambient light, with the precision that improves the sensor and detect.
In step S302, an image acquisition unit acquires environment image information of an environment in which the terminal is located, where the environment image information includes at least one of the following: image information of the environment where the terminal is located; the image acquisition unit acquires images so as to enable corresponding light inlet amount information to be obtained.
That is, in step S302, only image information of the environment where the terminal is located may be acquired, and the determination may be performed by the image information, only light entering amount information corresponding to the image captured by the image capturing unit may be acquired, and the determination may be performed by the light entering amount information, or the image information of the environment where the terminal is located and the light entering amount information corresponding to the image captured by the image capturing unit may be acquired, and the determination may be performed by both the image information and the light entering amount information, thereby implementing the brightness adjusting method.
In S303, adjusting the brightness of the terminal display screen according to the environment light information and the environment image information, including adjusting the brightness of the terminal display screen according to the current environment light information if the environment image information corresponds to the same environment feature as the current environment light information.
Specifically, if the image information of the environment where the terminal is located and/or the difference between the light incoming amount information corresponding to the image collected by the image collecting unit and the current environment light information is less than or equal to a second preset threshold, the brightness of the display screen of the terminal is adjusted according to the current environment light information.
Whether the brightness of a display screen of the terminal is adjusted or not can be judged through the difference between the image information of the environment where the terminal is located and the current environment light information, specifically, when the image information of the environment where the terminal is located is displayed as a long shot, such as a wall, a roof, a face of a user and the like, it is indicated that no object is shielded in front of a camera, and at this time, if the difference between the current environment light information detected by a light sensor and the image information is less than or equal to a second preset threshold value, it is indicated that the current environment light information really reflects the ambient environment conditions, so the brightness of the display screen of the terminal is adjusted according to the current environment light information.
Whether the brightness of the terminal display screen is adjusted or not can be judged through the difference between the light incoming amount information corresponding to the image collected by the image collecting unit and the current environment light information, and specifically, when the difference between the current environment light information detected by the light sensor and the light incoming amount information corresponding to the image collected by the image collecting unit is smaller than or equal to a second preset threshold value, the current environment light really reflects the ambient environment condition, so that the brightness of the terminal display screen is adjusted according to the current environment light information.
Whether the brightness of the display screen of the terminal is adjusted or not can be judged through the image information of the environment where the terminal is located and the difference between the light incoming amount information corresponding to the image collected by the image collecting unit and the current environment light information, specifically, when the image information of the environment where the terminal is located is displayed as a long shot, namely, under the condition that no object is shielded in front of the camera, the difference between the light incoming amount information of the image collected by the image collecting unit and the current environment light information is further judged, and if the difference is smaller than or equal to a second preset threshold value, the current environment light information really reflects the ambient environment condition, so the brightness of the display screen of the terminal is adjusted according to the current environment light information.
In S303, when the environment image information includes image information of an environment where the terminal is located, the brightness of the display screen of the terminal is adjusted according to the environment light information and the environment image information, and if the environment light information reflects that the environment brightness is reduced and the image information reflects that a shielding object exists within a preset distance of the terminal, the brightness of the display screen of the terminal is kept unchanged. And if the image information shows that the whole image information is fuzzy or the shadow area is larger than or equal to a third preset threshold value, a shelter is arranged in the preset distance of the terminal.
Specifically, when obtaining the image information of the environment where the terminal is located, that is to say when the mobile phone camera opens the imaging function and images the object in front of the lens, if there is the object too close to the camera distance, it can't focus to lead to the camera, and the formation of image shows fuzziness this moment, then thinks that there is the object in front of the mobile phone to shelter from, does not adjust the luminance of terminal display screen this moment. When the distance between the article and the camera is far but still within the preset distance, the camera can be focused, but although light rays are emitted into the lens in the imaging display of the image information, a large-area black shadow still exists, for example, a hand of a person appears in a certain range in front of the lens, a certain gap exists between fingers, the light rays are emitted to the position of the terminal through the gap, the camera can be focused at the moment, in the imaging display, the hand of the person is equivalent to the black shadow part, the light rays emitted through the gap between the fingers are equivalent to the bright part, the area of the black shadow is larger than the bright area and exceeds a preset threshold value, the front of the mobile phone is still considered to be shielded by the object, namely, the brightness of the display screen of the terminal is kept unchanged when the area of the black shadow displayed in the imaging effect of the image is larger than or equal to a third preset threshold value at the.
In S303, when the environment image information includes light-entering amount information corresponding to an image acquired by the image acquisition unit, the brightness of the display screen of the terminal is adjusted according to the environment light information and the environment image information, and if the environment light information indicates that the environment brightness is increased and a difference between the light-entering amount information corresponding to the image acquired by the image acquisition unit and the environment brightness corresponding to the current environment light information is greater than a second preset threshold, the brightness of the display screen of the terminal is kept unchanged.
Specifically, when the light sensor detects that the current ambient light information reflects the improvement of the ambient brightness, and the difference between the light incoming amount information corresponding to the image collected by the image collecting unit and the current ambient light information is greater than a second preset threshold value, the brightness of the display screen of the terminal is not adjusted. That is to say, when a beam of light irradiates the area where the light sensor is located, the ambient brightness reflected by the current ambient light information collected by the light sensor is higher than the ambient brightness reflected by the light entering amount information corresponding to the image collected by the image collecting unit, that is, the difference between the current ambient light information collected by the light sensor and the light entering amount information corresponding to the image collected by the image collecting unit is greater than or equal to the second preset threshold, and the brightness of the terminal display screen is not adjusted at this time. For example, a bundle of point light sources only irradiates at the position of the mobile phone light sensor, the current ambient light information detected by the light sensor at this time necessarily reflects the situation that the ambient brightness becomes bright, that is, the light incoming amount information corresponding to the image collected by the image collection unit is obviously lower than the current ambient light information collected by the light sensor at this time, and the light incoming amount information corresponding to the image collected by the image collection unit necessarily truly reflects the ambient situation, when the difference between the current ambient light information and the light incoming amount is greater than or equal to a second preset threshold value, it is indicated that the current ambient light information collected by the light sensor cannot truly reflect the ambient situation, and therefore, the brightness of the terminal display screen is kept unchanged.
The invention provides a brightness adjusting method, a terminal and a computer readable storage medium, aiming at the defect that the existing light sensor cannot accurately judge the ambient light condition. Acquiring ambient light through a light sensor to acquire ambient light information; acquiring environmental image information of an environment where the terminal is located through an image acquisition unit; and adjusting the brightness of a display screen of the terminal according to the environment light information and the environment image information. The problem of because of sheltering from when leading to the ambient light change or only a bunch of pointolite to shine the light sensor region, screen brightness automatically regulated to a state that does not adapt to current environment, that is to say that light sensor can't accurately judge whether current ambient light can really reflect the surrounding environment condition is solved, realized through the supplementary calibration function of camera, accurate detection surrounding environment luminance has improved user's use comfort.
Second embodiment
Fig. 4 is a detailed flowchart of a brightness adjustment method according to a second embodiment of the present invention, where the brightness adjustment method includes:
s401, detecting ambient light change through a light sensor;
s402, detecting the surrounding environment through a camera;
s403, judging whether an object is shielded in front of the camera;
s404, judging whether the light inlet quantity detected by the camera is consistent with the light sensation numerical value;
s405, adjusting the screen brightness according to the camera detection result of the mobile phone and the light sensation detection result detected by the light sensor.
In step S401, the ambient light change is detected by the light sensor, specifically, when the ambient light detected by the light sensor of the mobile phone has not changed, the result is defined as the light sensing result at time a, and when the ambient light detected by the light sensor is different from the light sensing result at time a, the result is defined as the light sensing result at time B.
When the detection result of the light sensor of the mobile phone changes from the light sensing detection result at the time point a to the light sensing detection result at the time point B, in order to improve the accuracy of determining the ambient light, step S402 is executed to detect the ambient environment through the camera, in other words, the camera is used to detect the ambient light and image the ambient environment to assist the light sensor in determining the ambient light.
Opening the camera and carrying out image formation to the object in front of the camera lens, in order to improve the accuracy of auxiliary judgment, executing step S403, judging whether there is object shielding in front of the camera, namely judging whether there is difference in ambient light because there is object shielding in a short distance through the imaging effect of the camera.
Specifically, in S4031, if the distance between the camera and the object is too close, and the camera cannot be focused, and there is an object occlusion in front of the lens, it is determined that the light sensing result at the time point B detected by the light sensor is generated due to the object occlusion, in other words, the light sensing result at the time point B cannot truly reflect the illumination intensity of the ambient light.
S4032, if the camera can be focused, but a large area of shadow exists in the image display, that is, the shadow area in the image is much larger than the light area, for example, a beam of light is injected from a curtain slit, or the camera is shielded by a human hand within a certain distance, and at this time, the entire environment is in the shade, it is determined that there is an object shielding in front of the camera, and it is determined that the light sensing result of the time point B detected by the light sensor is generated due to the object shielding, in other words, the light sensing result of the time point B cannot truly reflect the illumination intensity of the ambient light at this time.
S4033, if the camera can focus and the image of the lens is a long shot, such as the image of the lens shows a wall, a ceiling, or a user' S face, it is determined that there is no object in front of the mobile phone.
When it is determined that there is no object in front of the mobile phone, step S404 is executed to determine whether the light entering amount detected by the camera is consistent with the light sensation value. Specifically, S4041 converts the light entering amount detected by the lens into an ambient light value, and compares the ambient light value detected by the light sensor with the ambient light detection value detected by the lens, where the light entering amount detected by the lens truly reflects the ambient environment condition, and if the light entering amount detected by the lens is lower than the ambient light detection value detected by the light sensor, for example, a bundle of point light sources only irradiates the area where the light sensor is located, the ambient light detection value detected by the light sensor will become high at this time, but actually, the environment where the terminal is located is not obviously bright, that is, the light sensing result at the time point B cannot truly reflect the illumination intensity of the ambient light at this time.
S4042, if the amount of light entering the lens is substantially the same as the ambient light detection value detected by the light sensor, the light sensation detection result at the time point B is considered to actually reflect the illumination intensity of the ambient light.
In step S405, the screen brightness is adjusted according to the state of the light sensation detection result detected by the light sensor, specifically, when the detection result of the camera of the mobile phone and the detection result of the light sensation satisfy steps S4031, S4032, and S4041, the screen maintains the original brightness. That is, when there is an object in front of the lens for blocking, or there is no object in front of the lens for blocking but a beam of point light source directly irradiates the area where the light sensor is located, in other words, when the light sensing result of the light sensing detection result time point B detected by the light sensor is generated due to the object blocking, that is, the light sensing detection result of the time point B cannot truly reflect the illumination intensity of the ambient light, the screen brightness maintains the original brightness at this time; and when the detection result of the camera of the mobile phone and the detection result of the light sensation meet the step S4042, controlling the screen brightness to change according to the intensity of the ambient light. That is, when the light sensing result detected by the light sensor at the light sensing result time point B is the light intensity that truly reflects the ambient light, the screen brightness is controlled to change according to the ambient light intensity, so that the screen adapts to the current environmental situation.
Third embodiment
The present embodiment further provides a mobile phone terminal, as described in fig. 5, which includes a processor 51, a memory 52 and a communication bus 53, wherein: the communication bus 53 is used for realizing connection communication between the processor 51 and the memory 52;
the processor 51 is configured to execute the program for automatically adjusting the screen brightness stored in the memory 52 to implement the steps of the brightness adjusting method in the first and second embodiments.
Fourth embodiment
The present embodiment also provides a computer-readable storage medium storing one or more programs, which are executable by one or more processors to implement the steps of the brightness adjustment method in the first and second embodiments.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. A luminance adjustment method, characterized in that the luminance adjustment method comprises:
acquiring ambient light through a light sensor to acquire ambient light information;
acquiring environmental image information of an environment where the terminal is located through an image acquisition unit;
and adjusting the brightness of a display screen of the terminal according to the environment light information and the environment image information.
2. The brightness adjustment method according to claim 1, wherein the obtaining of the environmental image information of the environment where the terminal is located through the image acquisition unit comprises:
judging the difference between the current ambient light information and the historical ambient light information acquired by the light sensor;
and if the difference between the current ambient light information and the historical ambient light information is larger than or equal to a first preset threshold value, acquiring the ambient image information of the environment where the terminal is located through an image acquisition unit.
3. The brightness adjusting method according to claim 2, wherein the adjusting the brightness of the display screen of the terminal according to the ambient light information and the ambient image information comprises:
and if the environment image information and the current environment light information correspond to the same environment characteristics, adjusting the brightness of a terminal display screen according to the current environment light information.
4. The method of claim 3, wherein the ambient image information and the current ambient light information correspond to the same ambient characteristic comprises:
and the difference between the environment brightness corresponding to the environment image information and the current environment light information is less than or equal to a second preset threshold value.
5. The brightness adjustment method according to claim 1 or 2, wherein the environment image information of the environment where the terminal is located is obtained by the image acquisition unit, and the environment image information includes at least one of the following:
image information of the environment where the terminal is located; and the image acquisition unit acquires corresponding light inlet amount information when the image is acquired.
6. The brightness adjustment method according to claim 5, wherein when the environment image information includes image information of an environment in which the terminal is located, the adjusting the brightness of the display screen of the terminal according to the environment light information and the environment image information includes:
and if the ambient light information reflects that the ambient brightness is reduced and the image information reflects that a shielding object exists within the preset distance of the terminal, keeping the brightness of the display screen of the terminal unchanged.
7. The brightness adjusting method according to claim 6, wherein the terminal has a shelter within a preset distance, comprising:
and if the image information shows that the whole image is fuzzy or the shadow area is larger than or equal to a third preset threshold value, a shelter is arranged in the preset distance of the terminal.
8. The brightness adjusting method according to claim 5, wherein when the environment image information includes light-entering amount information corresponding to an image captured by an image capturing unit, the adjusting the brightness of the display screen of the terminal according to the environment light information and the environment image information includes:
and if the environment light information reflects that the environment brightness is improved, and the difference between the corresponding light inlet quantity information and the environment brightness corresponding to the current environment light information when the image acquisition unit acquires the image is larger than a second preset threshold value, keeping the brightness of the terminal display screen unchanged.
9. A terminal, characterized in that the terminal comprises a processor, a memory and a communication bus;
the communication bus is used for realizing connection communication between the processor and the memory;
the processor is configured to execute one or more programs stored in the memory to implement the steps of the brightness adjustment method according to any one of claims 1-8.
10. A computer-readable storage medium, characterized in that the computer-readable storage medium stores one or more programs which are executable by one or more processors to implement the steps of the brightness adjustment method according to any one of claims 1 to 8.
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