CN113810677A

CN113810677A - Screen brightness adjusting method, terminal and readable storage medium

Info

Publication number: CN113810677A
Application number: CN202111055362.7A
Authority: CN
Inventors: 贾勇
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2021-09-09
Filing date: 2021-09-09
Publication date: 2021-12-17

Abstract

The application discloses a screen brightness adjusting method, a terminal and a computer readable storage medium. The brightness adjusting method comprises the following steps: acquiring an original image through a shooting module on a terminal, and acquiring parameter information when the shooting module acquires the original image; acquiring reference brightness of a current environment according to an original image; acquiring comprehensive brightness according to the reference brightness and parameter information when the shooting module acquires the original image; and adjusting the brightness of the screen according to the comprehensive brightness. According to the method and the device, the comprehensive brightness is obtained through the original image obtained by the shooting module and the parameter information of the shooting module when the original image is shot, and the screen brightness is adjusted according to the comprehensive brightness. Therefore, the brightness of the screen can be adjusted to be suitable for brightness, and a user can see the content on the screen and the real scenery outside the terminal clearly.

Description

Screen brightness adjusting method, terminal and readable storage medium

Technical Field

The present disclosure relates to the field of dimming technologies, and in particular, to a method for adjusting brightness of a screen, a terminal and a computer-readable storage medium.

Background

Generally, a light sensing device is arranged on a terminal, and the terminal dynamically adjusts the brightness of a terminal screen according to ambient light parameters acquired by the light sensing device. However, when the environment where the terminal is located has a large brightness difference from the target environment seen by human eyes, the user cannot see the content displayed on the screen or the target environment content even if the terminal adjusts the brightness of the screen according to the ambient light illuminance obtained by the light sensing device.

Disclosure of Invention

The embodiment of the application provides a screen brightness adjusting method, a terminal and a computer readable storage medium.

The embodiment of the application provides a method for adjusting the brightness of a screen. The brightness adjusting method comprises the following steps: acquiring an original image through a shooting module of the terminal, and acquiring parameter information when the shooting module acquires the original image; acquiring reference brightness of the current environment according to the original image; acquiring comprehensive brightness according to the reference brightness and parameter information when the shooting module acquires the original image; and adjusting the brightness of the screen according to the comprehensive brightness.

The embodiment of the application also provides a terminal. The device comprises a support, at least one screen, a shooting module and one or more processors. The screen with the support, the shooting module sets up on the support, just the shooting module is used for acquireing original image. The processor is coupled with the shooting module and the screen, and is used for acquiring an original image through the shooting module of the terminal and acquiring parameter information when the shooting module acquires the original image; acquiring reference brightness of the current environment according to the original image; acquiring comprehensive brightness according to the reference brightness and parameter information when the shooting module acquires the original image; and adjusting the brightness of the screen according to the comprehensive brightness.

The embodiment of the present application also provides a nonvolatile computer readable storage medium containing a computer program. The computer program, when executed by a processor, causes the processor to perform a brightness adjustment method of a screen. The brightness adjusting method comprises the following steps: acquiring an original image through a shooting module of the terminal, and acquiring parameter information when the shooting module acquires the original image; acquiring reference brightness of the current environment according to the original image; acquiring comprehensive brightness according to the reference brightness and parameter information when the shooting module acquires the original image; and adjusting the brightness of the screen according to the comprehensive brightness.

According to the screen brightness adjusting method, the terminal and the computer readable storage medium in the embodiment of the application, the screen brightness is adjusted according to the original image acquired by the shooting module and the comprehensive brightness acquired by the parameter information of the shooting module when the original image is shot, and the screen brightness is adjusted according to the comprehensive brightness. Therefore, the brightness of the screen can be adjusted to be suitable, and compared with the condition that the brightness of the screen is adjusted only according to the ambient brightness around the terminal, the situation that a user cannot clearly see the content displayed on the screen or the content of the target environment when the environment where the terminal is located and the target environment seen by human eyes have large brightness difference can be avoided. Additional aspects and advantages of embodiments of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.

Drawings

The above and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic flow chart of a brightness adjustment method according to some embodiments of the present disclosure;

fig. 2 and 3 are schematic structural diagrams of a terminal according to some embodiments of the present application;

FIG. 4 is a flow chart illustrating a brightness adjustment method according to some embodiments of the present disclosure;

fig. 5 and 6 are schematic diagrams illustrating a method for adjusting brightness according to an original image to obtain reference brightness of a current environment according to some embodiments of the present disclosure;

fig. 7 to 11 are schematic flowcharts of a brightness adjusting method according to some embodiments of the present disclosure;

FIG. 12 is a graph of a function of the relationship between integrated luminance and adjusted luminance according to some embodiments of the present application;

fig. 13 to 15 are schematic flow charts of brightness adjustment methods according to some embodiments of the present disclosure;

FIG. 16 is a graph of a function relating ambient brightness to adjusted brightness in some embodiments of the present application;

FIG. 17 is a schematic diagram of an interaction between a non-volatile computer-readable storage medium and a processor in some embodiments of the present application.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary only for the purpose of explaining the embodiments of the present application, and are not to be construed as limiting the embodiments of the present application.

The terminal is taken as intelligent glasses (for example, AR glasses or VR glasses) as an example, a screen capable of displaying content is arranged on the intelligent glasses, and a user can see the content on the screen and can see a target object outside the glasses through the intelligent glasses. The ambient light level at the location of the smart glasses may be different from the ambient light level at the location of the target object. For example, the smart glasses are in a brighter environment and the target object is in a darker environment. If the screen brightness is still adjusted according to the ambient illuminance acquired by the light sensing device on the intelligent glasses, the brightness of the screen can be adjusted to be very high because the intelligent glasses are in a brighter environment at the moment. However, the target object is in a dark environment, the screen brightness of the smart glasses is very high, and at the moment, the user can see the target object clearly through the smart glasses. As another example, the smart glasses are in a darker environment and the target object is in a brighter environment. If the screen brightness is still adjusted according to the ambient light intensity obtained by the light sensing device on the intelligent glasses, the brightness of the screen can be reduced because the intelligent glasses are in a darker environment. However, the brightness of the target object is high and the brightness of the screen is low, which may cause the user to be unable to see the contents displayed on the screen.

Referring to fig. 1 and 2, to solve the above problem, the present embodiment provides a method for adjusting brightness of a screen 10 of a terminal 100. The brightness adjusting method comprises the following steps:

01: acquiring an original image through a shooting module 20 of the terminal 100, and acquiring parameter information when the shooting module 20 acquires the original image;

02: acquiring reference brightness of a current environment according to an original image;

03: acquiring comprehensive brightness according to the reference brightness and the parameter information when the shooting module 20 acquires the original image; and

04: the brightness of the screen 10 is adjusted according to the integrated brightness.

Referring to fig. 2 and fig. 3, the present invention further provides a terminal 100. The terminal 100 includes a stand 40, at least one screen 10, a photographing module 20, and one or more processors 30. The screen 10 is disposed on the stand 40, the photographing module 20 is used for acquiring an original image, and the one or more processors 30 are coupled with the photographing module 20 and the screen 10. The

steps

01, 02, 03 and 04 can be implemented by one or more processors. That is, the one or more processors 30 are configured to obtain an original image through the shooting module 20 on the terminal 100, and obtain parameter information when the shooting module 20 obtains the original image; acquiring reference brightness of a current environment according to an original image; acquiring comprehensive brightness according to the reference brightness and the parameter information when the shooting module 20 acquires the original image; and adjusts the brightness of the screen 10 according to the integrated brightness.

The brightness adjusting method of the screen 10 and the terminal 100 in the embodiment of the present application adjust the brightness of the screen 10 according to the comprehensive brightness obtained according to the original image obtained by the shooting module 20 and the parameter information of the shooting module 20 when the original image is shot. In this way, the brightness of the screen 10 can be adjusted to an appropriate brightness, and compared with the brightness of the screen 10 adjusted only according to the ambient brightness around the terminal 100, it is avoided that the user cannot clearly see the content displayed on the screen 10 or the target environment content when the environment of the terminal 100 and the target environment seen by human eyes have a large brightness difference.

Specifically, the processor 30 acquires an original image through the photographing module 20 on the terminal 100, and simultaneously acquires parameter information of the photographing module 20 when the original image is photographed. The direction in which the photographing module 20 acquires the original image is the same as the direction in which the user looks at the environment through the terminal 100. That is, the original image obtained by the camera module 20 can simulate the picture seen by the human eyes of the user through the terminal 100.

It should be noted that in some embodiments, the screen 10 of the terminal 100 displays content, and the screen 10 can also transmit light, so that the user can see both the content displayed on the screen 10 and the content in the environment through the terminal 100. In particular, in some embodiments, the screen 10 includes a light guide structure (not shown), such that the brightness of the screen 10 is adjusted by adjusting the brightness of the light guide structure. The terminal 100 may be at least one of a mobile phone, a notebook computer, a tablet computer, and a wearable device (e.g., AR glasses or VR glasses), without limitation. In particular, in some embodiments, when the terminal 100 is AR glasses or VR glasses, the screen 10 of the terminal 100 includes an optical waveguide (not shown), and the brightness of the screen 10 is adjusted by adjusting the brightness of the optical waveguide. In the following embodiments, the terminal 100 is taken as an example of a smart glasses.

Referring to fig. 3, in some embodiments, terminal 100 further includes at least one lens 50 disposed on support 40. The photographing module 20 is disposed on the stand 40, and the screen 10 is disposed on the lens 50. When the user uses the terminal 100 in this way, the user can see the content displayed on the screen 10 on the lens 50 by the eyes, and can see the real picture outside the terminal 100 through the lens 50. It should be noted that the number of the lenses 50 may be one or two; each lens 50 is provided with a screen 10, or only one lens 50 is provided with a screen 10; the number of the camera modules 20 may be one or more, which is not limited herein.

When only one lens 50 is disposed on the bracket 40, or only one lens 50 is disposed on the screen 10, the shooting module 20 is disposed at a position of the bracket 40 corresponding to the lens 50. For example, in one example, the camera module 20 may be disposed directly above the lens 50. Therefore, the original image acquired by the shooting module 20 is closer to the picture seen by human eyes through the lens 50, which is beneficial to subsequently adjusting the brightness of the screen 10 to a proper brightness, so that the user can see the content on the screen 10 and the real scenery outside the terminal 100 clearly. Of course, the camera module 20 may be disposed at other positions of the bracket 40, and is not limited herein.

When only two lenses 50 are disposed on the support 40, and each lens 50 has a screen 10 disposed thereon, in some embodiments, the terminal 100 includes two shooting modules 20, and each shooting module 20 corresponds to one lens 50. For example, the terminal 100 includes a first photographing module 20 and a second photographing module 20, the first photographing module 20 corresponds to the lens 50 disposed on the left side, and the second photographing module 20 corresponds to the lens 50 disposed on the right side. Thus, the original image obtained by the first photographing module 20 can simulate the picture seen by the left eye of the user through the lens 50, and the brightness of the screen 10 of the left lens 50 is adjusted according to the original image obtained by the first photographing module 20; the original image obtained by the second photographing module 20 can simulate the picture seen by the right eye of the user through the lens 50, and the brightness of the screen 10 of the lens 50 on the right side is adjusted according to the original image obtained by the second photographing module 20. When only two lenses 50 are disposed on the support 40 and each lens 50 is disposed with a screen 10, in other embodiments, one shooting module 20 is disposed on the support 40 and the shooting module 20 can correspond to the screens 10 on the two lenses 50, that is, the original image obtained by the shooting module 20 simulates a picture seen by two eyes of a user through the terminal 100. Since the brightness of each scene in the image seen by both eyes is generally the same, the original image obtained by setting one camera module 20 simulates the image seen by both eyes of the user through the terminal 100, and compared with setting two camera modules 20 corresponding to the left eye and the right eye respectively, the weight and the manufacturing cost of the terminal 100 can be reduced. In particular, in an example, the photographing module 20 corresponding to both of the two lenses 50 may be disposed above the lenses 50, and the distances from the photographing module 20 to the two lenses 50 are the same, so that the original image acquired by the photographing module 20 is closer to the image seen by the user through the terminal 100, which is beneficial to adjusting the brightness of the screen 10 to a suitable brightness, and thus the user can see both the content on the screen 10 and the real scenery outside the terminal 100. Of course, the shooting module 20 corresponding to both of the two lenses 50 can be disposed at other positions, and is not limited herein.

In particular, in some embodiments, the camera module 20 has an auto-exposure function to automatically adjust parameter information when the original image is captured, so as to obtain a clear original image. Therefore, the obtained original image is closer to the picture seen by human eyes through the terminal 100, and the reference information of the current environment can be obtained through the original image in the following process. In some embodiments, the field angle of the camera module 10 is greater than or equal to the field angle of the user's eyes. In this way, the screen information included in the original image acquired by the camera module 10 is greater than or equal to the screen information that the user can see through the terminal 100. This is advantageous for obtaining reference information of the current environment through the original image.

After the original image is acquired, the processor 30 acquires the reference brightness of the current environment according to the original image. Specifically, referring to fig. 1 and 4, in some embodiments, step 02: acquiring the reference brightness of the current environment according to the original image, wherein the method comprises the following steps:

021: acquiring the brightness value of a target area of an original image; and

022: and taking the brightness value of the target area as the current reference brightness.

Referring to fig. 2, in some embodiments,

steps

021 and 022 may be performed by one or more processors 30 of the terminal 100. That is, the one or more processors 30 are also configured to obtain luminance values of the target region of the original image; and taking the brightness value of the target area as the current reference brightness.

After acquiring the original image, the processor 30 first acquires the brightness value of the target area (the area in the line frame in the right diagram of fig. 5) of the original image, and takes the brightness value of the target area as the current reference brightness. When the user uses the terminal 100, the human eye can see a picture including a sensitive area and a non-sensitive area, and the human eye is more sensitive to the brightness of the scenery in the sensitive area intersecting with the brightness of the scenery in the non-sensitive area. The central position that can be observed by human eyes when the eyes are looking at is a sensitive area (an area in a line frame in the left image of fig. 5), and the target area in the original image corresponds to the sensitive area. Because human eyes are sensitive to the brightness of the scenery in the sensitive area, the brightness value of the target area corresponding to the sensitive area of the human eyes is used as the current reference brightness to adjust the screen 10 subsequently, which is beneficial to adjusting the brightness of the screen 10 to be proper brightness subsequently, so that a user can see the content on the screen 10 clearly and see the real scenery outside the terminal 100 clearly.

Specifically, in some embodiments, the position parameter of the target area frame (i.e. the wire frame in the right diagram of fig. 5) in the original image is obtained in advance according to the position of the shooting module 10 on the terminal 100 and the position of the human eye of the user corresponding to the terminal 100 when the user uses the terminal 100. The area enclosed by the target area frame corresponds to the front visual sensitive area of the human eye using the terminal 100, so that the picture in the target area frame of the original image corresponds to the target area visible to the human eye through the terminal 100. After the original image is obtained, the target area frame is placed at the corresponding position of the original image according to the position parameters of the target area frame in the original image, and the area in the target area frame is the target area. In some embodiments, the shooting angle of the shooting module 20 may also be adjusted in advance, so that the center of the environment of the image shot by the shooting module 20 is consistent with the center of the environment that can be seen by human eyes of the user, and the center of the preset target area frame is aligned with the center of the environment of the image to obtain the target area. Of course, the target area may also be obtained in other manners, and it is only necessary that the picture in the target area corresponds to the front-view front visual sensitive area of the terminal 100 used by the human eyes, which is not limited herein.

Referring to fig. 6, in some embodiments, the target region may include a plurality of sub-regions, each having a corresponding weight value. The areas of the plurality of sub-regions in the target region may be all the same or may be partially the same. In addition, the weight values corresponding to each sub-region may be different or partially the same, and are not limited herein.

In particular, since the human eye also has a difference in sensitivity to each position in its sensitive region, for example, the human eye has a higher sensitivity to the central position of its sensitive region than to the periphery of its sensitive region. Thus, in some embodiments, the target area is further subdivided into a plurality of sub-areas by the sensitivity of the human eye to each location in its sensitive area. The weight value of the subarea corresponding to the area with high human eye sensitivity is larger than that of the subarea corresponding to the area with low human eye sensitivity. Because the weight value of the sub-region corresponding to the region with higher human eye sensitivity is larger, the comprehensive brightness value obtained by subsequent calculation is closer to the brightness of the real scene actually seen by the user through the terminal 100, which is beneficial to subsequently adjusting the brightness of the screen 10 to be proper, so that the user can see the content on the screen 10 and the real scene outside the terminal 100 clearly.

For example, in some embodiments, as shown in fig. 6, the target region includes a first sub-region D1, a second sub-region D2, a third sub-region D3, a fourth sub-region D4, a fifth sub-region D5, a sixth sub-region D6, a seventh sub-region D7, an eighth sub-region D8, and a ninth sub-region D9. The fifth subregion D5 is disposed at the center of the target region, and the fourth subregion D4 and the sixth subregion D6 are disposed at the left and right sides of the fifth subregion D5, respectively; the second subregion D2 and the eighth subregion D8 are respectively disposed at upper and lower sides of the fifth subregion D5; the first sub-region D1 and the third sub-region D3 are respectively disposed on the left and right sides of the second sub-region D2; the seventh sub-region D7 and the ninth sub-region D9 are disposed on the left and right sides of the eighth sub-region D8, respectively. At this time, the fifth subregion D5 corresponds to a most sensitive region of human eyes, and thus the fifth subregion D5 corresponds to the first weight value c 1; the fourth subregion D4 and the sixth subregion D6 correspond to the sub-sensitive regions of the human eyes, and therefore the fourth subregion D4 and the sixth subregion D6 both correspond to the second weight value c 2; the second subregion D2 and the eighth subregion D8 correspond to regions that are relatively sensitive to human eyes, and thus both the second subregion D2 and the eighth subregion D8 correspond to the third weight value c 3; the first, third, and ninth sub-areas D1, D3, D7, and D9 correspond to regions of relatively low sensitivity among human eye sensitive regions, so the first, third, and ninth sub-areas D1, D3, D7, and D9 all correspond to the fourth weight value c4, and the first, second, and third weight values c1, c2, c3, and c4, respectively. In one example, the first weight value c1 is 1; the second weight value c2 is 0.8; the third weight value c3 is 0.7; the fourth weight value c4 is 0.6.

Referring to fig. 4 and 7, in some embodiments, the original image may be a black and white image. The target region may comprise a plurality of sub-regions, each having a corresponding weight value. Step 021: acquiring the brightness value of a target area of an original image, wherein the method comprises the following steps:

0211: calculating the region brightness value of the sub-region according to the brightness values of all pixels in the sub-region and the weight values corresponding to the sub-region;

0212: and calculating the brightness value of the target area of the original image according to the area brightness value of the sub-area and the number of pixels of the target area.

Referring to fig. 2, in some embodiments, the

steps

0211 and 0212 can be implemented by one or more processors 30 of the terminal 100. That is, the one or more processors 30 may be further configured to calculate a region brightness value of the sub-region according to the brightness values of all pixels in the sub-region and the weight values corresponding to the sub-region; and calculating the brightness value of the target area of the original image according to the area brightness value of the sub-area and the number of pixels of the target area.

It should be noted that, when the original image is a black-and-white image, the shooting module 20 may be a black-and-white camera, and the black-and-white original image is directly obtained by shooting through the shooting module 20. Of course, in some cases, the photographing module 20 may also be a color camera, and in this case, after the photographing module 20 acquires the color image, the color image may be subjected to a gray scale process or a normalization process to obtain a black and white original image, which is not limited herein.

The target region includes a plurality of sub-regions, each having a corresponding weight value, and each having at least one pixel therein. And calculating the region brightness value of the sub-region according to the brightness values of all pixels in the sub-region and the weight values corresponding to the region. For example, in some embodiments, the region luminance value of a sub-region is equal to the sum of the luminance values of all pixels in the region, multiplied by the corresponding weight value for the region. For example. The first sub-region D1 corresponds to the first weight value C1, and the first sub-region D1 includes n pixels, then a1 ═ a1+ a2+ A3+ -.. + An) × C1, where a1 represents the region luminance of the first sub-region D1, An represents the luminance value of the nth pixel in the first region D1 (a1, a2, A3 represent the luminance values of the 1 st, 2 nd, and 3 rd pixels in the first region D1, respectively), and C1 represents the first weight value corresponding to the first sub-region D1.

After the area brightness values of all the sub-areas are calculated according to the method, the brightness value of the target area of the original image is calculated according to the area brightness values of all the sub-areas and the number of pixels of the target area. Illustratively, in some embodiments, the luminance value of the target region is equal to the sum of the region luminance values of all the sub-regions, divided by the number of pixels of the target region. For example, as shown in fig. 6, the target region includes a first sub-region D1, a second sub-region D2, a third sub-region D3, a fourth sub-region D4, a fifth sub-region D5, a sixth sub-region D6, a seventh sub-region D7, an eighth sub-region D8, and a ninth sub-region D9, then Y ═ is (a1+ a2+ a3+ a4+ a5+ a6+ a7+ a8+ a9)/N, where Y denotes a luminance value of the target region, a1 denotes a region luminance of the first sub-region D1, a2 denotes a region luminance of the second sub-region D2, a3 denotes a region luminance of the third sub-region D3, a4 denotes a region luminance of the fourth sub-region D4, a5 denotes a region luminance of the fifth sub-region D5, a6 denotes a region luminance of the sixth sub-region D6, a7 denotes a region luminance of the seventh sub-region D7, a8 denotes a region luminance of the eighth sub-region D8, a9 denotes a region luminance of the ninth sub-region D9, and N denotes the number of pixels included in the target region.

Referring to fig. 4 and 8, in some embodiments, the original image is a color image. The target region includes a plurality of sub-regions, each sub-region having a corresponding weight value, each sub-region including at least one pixel therein, each pixel having a corresponding first color component value, second color component value, and third color component value. Step 021: acquiring the brightness value of a target area of an original image, wherein the method comprises the following steps:

0213: calculating a first color component value, a second color component value and a third color component value of each sub-region according to the first color component value, the second color component value and the third color component value of all pixels in the sub-region and the weight values corresponding to the sub-regions;

0214: and calculating the brightness value of the target area of the original image according to the first color component value, the second color component value and the third color component value of all the subregions, wherein the first preset weight corresponds to the first color, the second preset weight corresponds to the second color, and the third preset weight corresponds to the third color.

Referring to fig. 2, in some embodiments, the

steps

0213 and 0214 can be implemented by one or more processors 30 of the terminal 100. That is, the one or more processors 30 may be further configured to calculate the first color component value, the second color component value, and the third color component value of each sub-region according to the first color component value, the second color component value, and the third color component value of all pixels in the sub-region, and the weight values corresponding to the sub-regions; and calculating the brightness value of the target area of the original image according to the first color component value, the second color component value and the third color component value of all the sub-areas, wherein the first preset weight corresponds to the first color, the second preset weight corresponds to the second color, and the third preset weight corresponds to the third color.

When the original image is a color image, the image capturing module 20 is a color camera.

The object region comprises a plurality of sub-regions, each sub-region having a corresponding weight value, each region comprising at least one pixel, each pixel having a corresponding first color component value, second color component value, and third color component value. The first color component value, the second color component value and the third color component value of each sub-region are calculated according to the first color component value, the second color component value and the third color component value of all pixels in the sub-region and the weight values corresponding to the sub-regions. Illustratively, the first color component value of a sub-region is equal to the sum of the first color component values of all pixels of the region, multiplied by the corresponding weight value of the region. Similarly, the second color component value of the sub-region is equal to the sum of the second color component values of all pixels of the region, multiplied by the weight value corresponding to the region; the third color component value of the sub-region is equal to the sum of the third color component values of all pixels of the region multiplied by the corresponding weight value of the region. For example, the first sub-region D1 corresponds to the first weight value C1, and the first sub-region D1 includes n pixels, then E1 ═ C1 (E1+ E2+ E3+ ·. · En) × C1; f1 ═ F1+ F2+ F3+.. + Fn) × C1; g1 ═ G1+ G2+ G3+. + Gn × C1. Where E1 denotes a first color component value of the first sub-region D1, En denotes a first color component value of the nth pixel in the first region D1 (E1, E2, E3 denote first color component values of the 1 st, 2 nd and 3 rd pixels in the first region D1, respectively), and C1 denotes a first weight value corresponding to the first sub-region D1; f1 represents the second color component value of the first sub-region D1, Fn represents the second color component value of the nth pixel in the first region D1 (F1, F2, F3 represent the second color component values of the 1 st, 2 nd and 3 rd pixels, respectively, in the first region D1); g1 represents the third color component value of the first sub-region D1, and Gn represents the third color component value of the nth pixel in the first region D1 (G1, G2, G3 represent the third color component values of the 1 st, 2 nd and 3 rd pixels, respectively, in the first region D1).

After the first color component value, the second color component value and the third color component value of all the sub-regions are calculated according to the method, the brightness value of the target region of the original image is calculated according to the first color component value, the second color component value and the third color component value of all the sub-regions. Illustratively, in some embodiments, the first color component of the target region is first calculated from the sum of the first color component values of all sub-regions, divided by the number of pixels in the target region; calculating a second color component of the target region by dividing the sum of the values of the second color components of all the sub-regions by the number of pixels in the target region; the third color component of the target region is calculated from the sum of the third color component values of all sub-regions, divided by the number of pixels in the target region. And then, calculating a first product according to the first color component of the target area multiplied by a first preset value, calculating a second product according to the second color component of the target area multiplied by a second preset value, calculating a third product according to the third color component of the target area multiplied by a third preset value, and taking the sum of the first product, the second product and the third product as the brightness value of the target area.

For example, as shown in fig. 6, the target region includes a first sub-region D1, a second sub-region D2, a third sub-region D3, a fourth sub-region D4, a fifth sub-region D5, a sixth sub-region D6, a seventh sub-region D7, an eighth sub-region D8, and a ninth sub-region D9, and e is always (e1+ e2+ e3+ e4+ e5+ e6+ e7+ e8+ e 9)/N. Where e collectively represents a first color component value of the target region, e1 represents a first color component value of the first sub-region D1, e2 represents a first color component value of the second sub-region D2, e3 represents a first color component value of the third sub-region D3, e4 represents a first color component value of the fourth sub-region D4, e5 represents a first color component value of the fifth sub-region D5, e6 represents a first color component value of the sixth sub-region D6, e7 represents a first color component value of the seventh sub-region D7, e8 represents a first color component value of the eighth sub-region D8, e9 represents a first color component value of the ninth sub-region D9, and N represents the number of pixels included in the target region. Similarly, the specific implementation of calculating the second color component value and the third color component value of the object region is the same as the obtaining of the first color component value of the object region in the above embodiments, and is not repeated herein. After the first color component value, the second color component value, and the third color component value of the target region are obtained, the luminance value of the target region may be obtained through calculation by a calculation formula Y of k1 × e total + k2 × f total + k3 × g total. Wherein e generally represents a first color component value of the target area, f generally represents a second color component value of the target area, g generally represents a third color component value of the target area, k1 represents a first preset weight, k2 represents a second preset weight, and k3 represents a third preset weight.

It is noted that, in some embodiments, the first color component, the second color component, and the third color component may be a red color component, a green color component, and a blue color component, respectively. That is, each pixel in the object region has a red component value, a green component value, and a blue component value. Of course, in other embodiments, the first color component, the second color component and the third color component may be other color components, and are not limited herein. In particular, when the first color component, the second color component and the third color component can be a red color component, a green color component and a blue color component, respectively, in one example, the first predetermined weight k1 is 0.299, the second predetermined weight k2 is 0.587, and the third predetermined weight k3 is 0.114.

And after the brightness value of the target area is acquired, taking the brightness value of the target area as a reference brightness value. And acquiring the comprehensive brightness according to the reference brightness value and the parameter information corresponding to the original image. Referring to fig. 9, in some embodiments, the parameter information includes sensitivity and exposure time. Step 03: acquiring comprehensive brightness according to the reference brightness and the parameter information corresponding to the original image, wherein the comprehensive brightness comprises the following steps:

031: and calculating the comprehensive brightness according to preset adjusting parameters, reference brightness, sensitivity and exposure time.

Referring to fig. 2, step 031 can also be implemented by one or more processors 30 of the terminal 100. That is, the one or more processors 30 are further configured to calculate the integrated brightness according to the preset adjustment parameters, the reference brightness, the sensitivity, and the exposure time.

For example, in some embodiments, the formula X — B × Y × M/T may be calculated, where X is the integrated brightness, B is the adjustment parameter, Y is the reference brightness value, M is the sensitivity set by the shooting module 20 when the original image is shot, and T is the exposure time set by the shooting module 20 when the original image is shot. It should be noted that the adjustment parameter may be preset. Of course, in some embodiments, the parameter information further includes light sensation adjustment data of the original image captured by the capturing module 20, and the adjustment parameter may also correspond to the light sensation adjustment data. Since the parameters of the photographing module 20 may be different each time the original image is photographed, that is, the brightness of the original image is already adjusted, there may be a difference between the reference brightness of the current environment obtained through the original image and the brightness of the actual environment. Therefore, the comprehensive brightness is obtained according to the reference brightness and the parameter information corresponding to the original image, and then the subsequent operation is performed according to the comprehensive brightness value, which is beneficial to subsequently adjusting the brightness of the screen 10 to a proper brightness, so that the user can see not only the content on the screen 10 but also the real scenery outside the terminal 100.

After the integrated brightness is obtained, the brightness of the screen 10 is adjusted according to the integrated brightness. Referring to fig. 1 and 10, in some embodiments, step 04: the brightness of the screen 10 is adjusted according to the integrated brightness, including:

041: determining the target brightness of the screen 10 according to a preset relation function between the comprehensive brightness and the adjusted brightness and the comprehensive brightness; and

042: the brightness of the screen 10 is adjusted according to the target brightness.

Referring to fig. 2, in some embodiments, the

steps

041 and 042 may be implemented by one or more processors 30 of the terminal 100. That is, the one or more processors 30 are further configured to determine a target brightness of the screen 10 according to a preset function regarding a relationship between the integrated brightness and the adjusted brightness and the integrated brightness; and adjusts the brightness of the screen 10 according to the target brightness.

More specifically, referring to fig. 10 and 11, in some embodiments, the target brightness includes a first brightness. At this point, step 041: acquiring the target brightness of the screen according to a preset relation function between the comprehensive brightness and the adjusted brightness and the comprehensive brightness, wherein the method comprises the following steps:

0411: and acquiring first brightness according to a preset relation function between the comprehensive brightness and the adjusted brightness and the comprehensive brightness.

Step 042: adjusting the brightness of the screen 10 according to the target brightness includes:

051: the brightness of the screen 10 is adjusted according to the first brightness.

Referring to fig. 2, in some embodiments,

steps

0411 and 051 may be implemented by one or more processors 30 of terminal 100. That is, the one or more processors 30 are further configured to obtain the first brightness according to the preset relation function between the integrated brightness and the adjusted brightness and the integrated brightness; and adjusting the brightness of the screen 10 according to the first brightness.

For example, referring to fig. 12, in some embodiments, a function diagram of a relationship between the integrated brightness and the adjusted brightness is pre-stored in the terminal 100, and each integrated brightness has a corresponding adjusted brightness. After the comprehensive brightness is obtained, the adjusted brightness corresponding to the comprehensive brightness is searched in a relation function graph related to the comprehensive brightness and the adjusted brightness, and the adjusted brightness is used as the first brightness. After the first brightness is obtained, the brightness of the screen 10 is directly adjusted to the first brightness. This enables the user to see both the contents on the screen 10 and the real scenery outside the terminal 100.

Referring to fig. 10 and 13, in some embodiments, step 042: adjusting the brightness of the screen 10 according to the target brightness, further comprising:

052: if the difference between the first brightness and the current brightness of the screen 10 is less than the first threshold, maintaining the current brightness of the screen 10; if the difference between the first brightness and the current brightness of the screen 10 is greater than the first threshold, the brightness of the screen 10 is adjusted according to the first brightness.

Referring to fig. 2, in some embodiments, step 052 may be implemented by one or more processors 30 of terminal 100. That is, the one or more processors 30 are further configured to maintain the current brightness of the screen 10 if the difference between the first brightness and the current brightness of the screen 10 is less than the first threshold; if the difference between the first brightness and the current brightness of the screen 10 is greater than the first threshold, the brightness of the screen 10 is adjusted according to the first brightness.

Illustratively, after the first brightness is obtained, the first brightness is compared with the current brightness of the screen 10, and if the difference between the first brightness and the current brightness of the screen 10 is smaller than the first threshold, it is considered that even if the current brightness is adopted by the screen 10, the user can see both the content on the screen 10 and the real scene outside the terminal 100. Therefore, the brightness of the screen 10 is not adjusted at this time, that is, the current brightness of the screen 10 is maintained, so that the brightness of the screen 10 is not adjusted while the user can see both the content on the screen 10 and the real scenery outside the terminal 100, thereby prolonging the service life of the screen 10. If the difference between the first brightness and the current brightness of the screen 10 is greater than the first threshold, it is considered that the user cannot see the real scene outside the screen 10 and/or the terminal 100 clearly when the current brightness is adopted by the screen 10, and at this time, the brightness of the screen 10 is adjusted according to the first brightness, that is, the brightness of the screen 10 is adjusted to the first brightness. This enables the user to see both the contents on the screen 10 and the real scenery outside the terminal 100.

Referring to fig. 1, 10, 14 and 15, in some embodiments, the photographing module 20 operates at a first power to obtain an original image. The target luminance includes the first luminance and the second luminance, and then step 041: acquiring the target brightness of the screen according to a preset relation function between the comprehensive brightness and the adjusted brightness and the comprehensive brightness, wherein the method comprises the following steps:

0411: acquiring first brightness according to a preset relation function between the comprehensive brightness and the adjusted brightness and the comprehensive brightness;

0412: the light sensing module 60 of the control terminal 100 obtains the current ambient brightness, and obtains a second brightness according to the ambient brightness;

step 042: adjusting the brightness of the screen according to the target brightness, comprising:

053: if the difference value between the first brightness and the second brightness is greater than the second threshold value, adjusting the brightness of the screen 10 according to the first brightness, and keeping the shooting module 20 working at the first power;

054: if the difference between the first brightness and the second brightness is smaller than the second threshold, the brightness of the screen 10 is adjusted according to the second brightness, and the shooting module 20 is controlled to operate at a second power, where the second power is smaller than the first power.

Referring to fig. 2, step 0411, step 0412, step 053 and step 054 may be implemented by one or more processors 30 of terminal 100. That is, the one or more processors 30 are further configured to obtain the first brightness according to the preset relation function between the integrated brightness and the adjusted brightness and the integrated brightness; the light sensing module 60 of the control terminal 100 obtains the current ambient brightness, and obtains a second brightness according to the ambient brightness; if the difference between the first brightness and the second brightness is greater than the second threshold, the brightness of the screen 10 is adjusted according to the first brightness, and the shooting module 20 is kept operating at the first power. If the difference between the first brightness and the second brightness is smaller than the second threshold, the brightness of the screen 10 is adjusted according to the second brightness, and the shooting module 20 is controlled to operate at a second power, where the second power is smaller than the first power.

Illustratively, in some embodiments, the camera module 20 operates at a first power to capture the raw image. The terminal 100 further includes a photo sensor module 60, and the photo sensor module 60 is used for detecting the ambient brightness around the terminal 100. The target brightness includes a first brightness and a second brightness. The specific implementation of obtaining the first brightness is the same as that of obtaining the first brightness in the above embodiments, and is not described herein again.

The light sensing module 60 of the control terminal 100 obtains the current ambient brightness and obtains the second brightness according to the ambient brightness. In some embodiments, the second brightness may be obtained according to a relation function between the ambient brightness and the adjusted brightness and the ambient brightness. For example, as shown in fig. 16, in one example, a function graph relating to the relationship between the ambient brightness and the adjusted brightness is pre-stored in the terminal 100, and each ambient brightness has a corresponding adjusted brightness. The ambient brightness is obtained through the photo sensing module 60, and after obtaining the ambient brightness, an adjusted brightness corresponding to the ambient brightness is found in a function graph related to a relationship between the ambient brightness and the adjusted brightness, and the adjusted brightness is used as a second brightness. It should be noted that, in some embodiments, the relationship function between the integrated brightness and the adjusted brightness is the same as the relationship function between the ambient brightness and the adjusted brightness. That is, if the integrated luminance is the same as the ambient luminance, the corresponding adjusted luminances are also the same, i.e., the first luminance is also the same as the second luminance.

After the first brightness and the second brightness are obtained, a difference value between the first brightness and the second brightness is obtained. If the difference between the first brightness and the second brightness is greater than the second threshold, it can be considered that the difference between the brightness of the environment where the terminal 100 is located and the brightness of the scenery observed by the user is greater at this time, the brightness of the screen 10 is adjusted according to the first brightness; if the difference between the first brightness and the second brightness is smaller than the second threshold, it can be considered that the difference between the brightness of the environment where the terminal 100 is located and the brightness of the scenery observed by the user is smaller, the brightness of the screen 10 is adjusted according to the second brightness, and the shooting module 20 is controlled to operate at the second power, where the second power is smaller than the first power. If the difference between the first brightness and the second brightness is equal to the second threshold, it can be considered that the difference between the brightness of the environment where the terminal 100 is located and the brightness of the scenery observed by the user is larger at this time, and the brightness of the screen 10 is adjusted according to the first brightness; it can also be considered that the difference between the brightness of the environment where the terminal 100 is located and the brightness of the scene observed by the user is smaller, the brightness of the screen 10 is adjusted according to the second brightness, and the photographing module 20 is controlled to operate at the second power. On one hand, when the brightness of the environment where the terminal 100 is located is different from the brightness of the scenery observed by the user greatly, the brightness of the screen 10 is adjusted by the first brightness obtained according to the original image shot by the shooting module 20, so that the user can see not only the content on the screen 10 but also the real scenery outside the terminal 100 clearly; on the other hand, when the brightness of the environment where the terminal 100 is located is different from the brightness of the scenery observed by the user, the brightness of the screen 10 is adjusted by directly adopting the second brightness obtained by the light sensing module 60, and the power of the shooting module 20 is reduced, so that the user can be ensured to see not only the content on the screen 10 but also the real scenery outside the terminal 100, and the power consumption of the terminal 100 can be reduced.

Referring to fig. 17, the present application also provides a non-transitory computer readable storage medium 400 containing a computer program 410. The computer program, when executed by the processor 420, causes the processor 420 to perform the brightness adjustment method of any of the above embodiments.

Referring to FIG. 1, for example, when the computer program 410 is executed by the processor 420, the processor 420 is caused to perform the methods in 01, 02, 021, 0211, 0212, 0213, 0214, 022, 03, 031, 04, 041, 042, 0411, 0412, 051, 052, 053, 054. For example, the following brightness adjustment method is performed

It should be noted that the processor 420 may be disposed in the terminal 100, that is, the processor 420 and the processor 30 are the same processor, and of course, the processor 420 may not be disposed in the terminal 100, that is, the processor 420 and the processor 30 are not the same processor, which is not limited herein.

In the description herein, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example" or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and the scope of the preferred embodiments of the present application includes other implementations in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present application.

Although embodiments of the present application have been shown and described above, it is to be understood that the above embodiments are exemplary and not to be construed as limiting the present application, and that changes, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.

Claims

1. A method for adjusting the brightness of a screen of a terminal is characterized by comprising the following steps:

acquiring an original image through a shooting module of the terminal, and acquiring parameter information when the shooting module acquires the original image;

acquiring reference brightness of the current environment according to the original image;

acquiring comprehensive brightness according to the reference brightness and parameter information when the shooting module acquires the original image; and

and adjusting the brightness of the screen according to the comprehensive brightness.

2. The brightness adjustment method according to claim 1, wherein a field angle of the camera module is greater than or equal to a field angle of a human eye of a user.

3. The brightness adjustment method according to claim 1, wherein the obtaining of the reference brightness of the current environment from the original image comprises:

acquiring a brightness value of a target area of the original image; and

and taking the brightness value of the target area as the current reference brightness.

4. The method according to claim 3, wherein the original image is a black-and-white image, the target region includes a plurality of sub-regions, each sub-region has a corresponding weight value, and the obtaining the brightness value of the target region of the original image includes:

calculating the region brightness value of the sub-region according to the brightness values of all pixels in the sub-region and the weight values corresponding to the sub-region;

and calculating the brightness value of the target area of the original image according to the area brightness value of the sub-area and the number of pixels of the target area.

5. The method of adjusting brightness according to claim 3, wherein the original image is a color image, the object region comprises a plurality of sub-regions, each sub-region has a corresponding weight value, the sub-regions comprise at least one pixel, each pixel has a corresponding first color component value, second color component value and third color component value, the obtaining the brightness value of the object region of the original image comprises:

calculating a first color component value, a second color component value and a third color component value of each sub-region according to the first color component value, the second color component value and the third color component value of all pixels in the sub-region and the weight values corresponding to the sub-regions respectively;

and calculating the brightness value of the target area of the original image according to the first color component value, the second color component value and the third color component value of all the sub-areas, wherein the first preset weight corresponds to the first color, the second preset weight corresponds to the second color, and the third preset weight corresponds to the third color.

6. The luminance adjustment method according to claim 1, wherein the parameter information includes sensitivity and exposure time; acquiring comprehensive brightness according to the current reference brightness and the parameter information corresponding to the current original image, wherein the acquiring comprehensive brightness comprises the following steps:

and calculating the comprehensive brightness according to preset adjusting parameters, the reference brightness, the sensitivity and the exposure time.

7. The brightness adjustment method according to claim 1, wherein adjusting the brightness of the screen based on the integrated brightness comprises:

determining the target brightness of the screen according to a preset relation function between the comprehensive brightness and the adjusted brightness and the comprehensive brightness; and

and adjusting the screen brightness according to the target brightness.

8. The method according to claim 7, wherein the target brightness comprises a first brightness, and the obtaining the target brightness of the screen according to a preset function regarding a relationship between a combined brightness and an adjusted brightness and the combined brightness comprises:

obtaining first brightness according to a preset relation function between the comprehensive brightness and the adjusted brightness and the comprehensive brightness;

the adjusting the brightness of the screen according to the target brightness comprises:

adjusting the screen brightness according to the first brightness; or

If the difference value between the first brightness and the current brightness of the screen is smaller than a first threshold value, keeping the current brightness of the screen; and if the difference value between the first brightness and the current brightness of the screen is greater than a first threshold value, adjusting the brightness of the screen according to the first brightness.

9. A terminal, comprising:

a support;

at least one screen disposed on the stand;

the shooting module is arranged on the bracket and used for acquiring an original image; and

one or more processors coupled to the camera module and the screen;

wherein the one or more processors are to:

10. The terminal of claim 9, further comprising at least one lens disposed on the cradle, the screen being disposed on the lens.

11. The terminal of claim, wherein the field angle of the camera module is greater than or equal to the field angle of the user's eyes.

12. The terminal of claim 9, wherein the processor is further configured to:

acquiring a brightness value of a target area of the original image; and

13. The terminal of claim 12, wherein the original image is a black and white image, wherein the target region comprises a plurality of sub-regions, each sub-region having a corresponding weight value, and wherein the processor is further configured to:

14. The terminal of claim 12, wherein the original image is a color image, wherein the object region comprises a plurality of sub-regions, each sub-region having a corresponding weight value, wherein at least one pixel is included in the sub-region, wherein each pixel has a corresponding first color component value, second color component value, and third color component value, and wherein the processor is further configured to:

15. The terminal of claim 9, wherein the parameter information includes sensitivity and exposure time; the processor is further configured to:

16. The terminal of claim 9, wherein the process is further configured to:

and adjusting the screen brightness according to the target brightness.

17. The terminal of claim 16, wherein the target brightness comprises a first brightness, and wherein the processor is further configured to:

adjusting the screen brightness according to the first brightness; or

18. A non-transitory computer-readable storage medium containing a computer program, wherein the computer program, when executed by a processor, causes the processor to execute the brightness adjustment method according to any one of claims 1 to 8.