A mobile phone secondary screen light supplement control method, device, equipment and storage medium

Abstract

The application discloses a mobile phone auxiliary screen light supplement control method, device, equipment and storage medium. The application receives a video signal from a Scaler module through a picture processing module; controls a light sensing module to monitor environmental brightness in real time and transmits environmental brightness data to the picture processing module; controls the picture processing module to compare the environmental brightness data with a preset brightness value to determine whether to turn on a light supplement lamp; after turning on the light supplement lamp, controls the picture processing module to confirm the initial brightness of the light supplement lamp; controls the picture processing module to perform picture analysis and processing on a video display picture according to the video signal; determines a color compensation value and a brightness compensation value of the video display picture according to the result of the picture analysis and processing; and performs color compensation and brightness compensation on the video display picture according to the color compensation value and the brightness compensation value of the video display picture. The application can automatically and intelligently adjust light supplement according to the environmental brightness of a mobile phone auxiliary screen device, and can realize color difference compensation of a video display picture, thereby improving the picture display effect.

Description

Technical Field

[0001] The present invention relates to the field of display control technology, and in particular to a method, device, equipment and storage medium for controlling fill light on a secondary screen of a mobile phone. Background Art

[0002] With the popularity of smartphones, people are increasingly accustomed to using their phones to take selfies or live stream. However, when using the phone's rear camera for selfies or live streams, users often cannot see the phone's screen, making it impossible to accurately judge whether the image meets their needs. To solve this problem, a mobile phone secondary screen device has emerged in the prior art. By placing the secondary screen and the phone back to back, users can see the image captured by the phone's rear camera when taking selfies or live streams. The mobile phone secondary screen device provides users with instant visual feedback, allowing them to better control the content and quality of the image when taking selfies and live streams.

[0003] Video signal processing technology has been applied to mobile phone secondary screen devices. Within the video signal processing system of a mobile phone secondary screen device, the image processing module is responsible for receiving and processing video signals such as LVDS, EDP, VBO, MIPI, and TTL. However, existing mobile phone secondary screen video signal processing systems often ignore the impact of ambient light on image quality when processing video signals.

[0004] First, in low-light environments, fill light is often required to maintain image quality. Existing fill light control technologies rely primarily on manual intervention and lack automatic adjustment. Furthermore, the fill light's brightness adjustment range is limited, making it difficult to meet the needs of diverse environments. Furthermore, existing image processing modules typically perform unified processing on the entire image when performing image analysis, failing to fully consider the differences in brightness and color across different image regions. This results in poor fill light performance and fails to meet user demands for high-quality images.

[0005] Therefore, how to reliably and efficiently solve the problem of controlling the fill light of the mobile phone's secondary screen has become an urgent problem to be solved by technicians in this field. Summary of the Invention

[0006] In response to the above-mentioned defects, the embodiments of the present invention provide a method, device, equipment and storage medium for controlling the fill light of a secondary screen of a mobile phone, so as to solve the problems existing in the prior art.

[0007] To solve the above technical problems, an embodiment of the present invention provides a method for controlling fill light of a mobile phone secondary screen, the method comprising:

[0008] Control the image processing module to receive the video signal from the Scaler module;

[0009] Control the light sensing module to monitor the ambient brightness in real time and transmit the ambient brightness data value to the image processing module;

[0010] Controlling the image processing module to determine whether to turn on the fill light based on the ambient brightness data value;

[0011] After turning on the fill light, controlling the image processing module to confirm the initial brightness of the fill light;

[0012] Controlling the image processing module to perform image analysis processing on the video display image according to the video signal;

[0013] Determining a color compensation value and a brightness compensation value of the video display image based on a result of the image analysis processing;

[0014] Color compensation and brightness compensation are performed on the video display picture according to the color compensation value and the brightness compensation value of the video display picture.

[0015] Preferably, controlling the image processing module to determine whether to turn on the fill light based on the ambient brightness data value includes:

[0016] Controlling the image processing module to compare the ambient brightness data value with a preset brightness value;

[0017] If the ambient brightness data value is less than the preset brightness value, turn on the fill light.

[0018] Preferably, after turning on the fill light, controlling the image processing module to confirm the initial brightness of the fill light includes:

[0019] Determine a linear mapping relationship between the ambient brightness data value and the lumen value of the fill light;

[0020] The initial brightness of the fill light is determined according to the linear mapping relationship.

[0021] Preferably, controlling the image processing module to perform image analysis processing on the video display image according to the video signal includes:

[0022] Controlling the image processing module to divide the video display image into regions according to the resolution;

[0023] Get the RGB color value and brightness signal of each partition area;

[0024] According to the RGB three-color value and the brightness signal of each of the partitioned areas, the color missing value and the brightness missing value of the video display screen are determined according to a preset calculation algorithm.

[0025] Preferably, determining the color compensation value and the brightness compensation value of the video display picture according to the result of the picture analysis processing includes:

[0026] Determining a color compensation value of the video display screen according to the color loss value of the video display screen;

[0027] A brightness compensation value of the video display picture is determined according to the brightness missing value of the video display picture.

[0028] Preferably, determining the color missing value and the brightness missing value of the video display screen according to a preset calculation algorithm based on the RGB three-color value and the brightness signal of each partition area includes:

[0029] Determining the RGB three-color value of each of the partitioned areas according to the RGB color perception brightness calculation formula;

[0030] The sum of the RGB grayscale values ​​of each pixel is calculated to confirm the color missing value and brightness missing value of each partition area.

[0031] Preferably, the determining the color missing value and the brightness missing value of the video display screen according to a preset calculation algorithm based on the RGB three-color value and the brightness signal of each partitioned area further includes:

[0032] RGB color perception brightness calculation formula: Brightness = 0.3*R+0.6*G+0.1*B.

[0033] To solve the above technical problems, an embodiment of the present invention provides a device for controlling the fill light of a secondary screen of a mobile phone, the device comprising:

[0034] The signal receiving module is used to control the image processing module to receive the video signal from the Scaler module;

[0035] An environmental brightness monitoring module is used to control the light sensing module to monitor the environmental brightness in real time and transmit the environmental brightness data value to the image processing module;

[0036] A fill light control module, configured to control the image processing module to determine whether to turn on the fill light based on the ambient brightness data value;

[0037] An initial brightness control module, configured to control the image processing module to determine the initial brightness of the fill light after the fill light is turned on;

[0038] A picture analysis and processing module, used to control the picture processing module to perform picture analysis and processing on the video display picture according to the video signal;

[0039] The compensation confirmation module is used to determine the color compensation value and brightness compensation value of the video display screen according to the result of the screen analysis processing;

[0040] The color and brightness compensation module is used to perform color compensation and brightness compensation on the video display screen according to the color compensation value and brightness compensation value of the video display screen.

[0041] To solve the above technical problems, an embodiment of the present invention provides a mobile phone secondary screen fill light control device, including: at least one processor, at least one memory and computer program instructions stored in the memory. When the computer program instructions are executed by the processor, the method of the first aspect of the above embodiment is implemented.

[0042] To solve the above technical problems, an embodiment of the present invention provides a storage medium on which computer program instructions are stored. When the computer program instructions are executed by a processor, the method of the first aspect of the above embodiment is implemented.

[0043] In summary, the embodiments of the present invention provide a method, device, equipment and storage medium for controlling the fill light of a mobile phone's secondary screen. The present invention controls the picture processing module to receive a video signal from the Scaler module; controls the light sensing module to monitor the ambient brightness in real time, and transmits the ambient brightness data value to the picture processing module; controls the picture processing module to compare the ambient brightness data value with a preset brightness value to determine whether to turn on the fill light; after turning on the fill light, controls the picture processing module to confirm the initial brightness of the fill light; controls the picture processing module to perform picture analysis processing on the video display picture according to the video signal; determines the color compensation value and brightness compensation value of the video display picture according to the result of the picture analysis processing; and performs color compensation and brightness compensation on the video display picture according to the color compensation value and brightness compensation value of the video display picture. Therefore, the present invention can automatically and intelligently adjust the fill light according to the ambient brightness of the mobile phone's secondary screen device, and can achieve color difference compensation of the video display picture, thereby improving the picture display effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0045] Figure 1 This is a flow chart of a method for controlling fill light on a secondary screen of a mobile phone according to an embodiment of the present invention.

[0046] Figure 2 This is a flowchart of an embodiment of the present invention for controlling the image processing module to determine whether to turn on the fill light based on the ambient brightness data value.

[0047] Figure 3 This is a flow chart of controlling the image processing module to confirm the initial brightness of the fill light after the fill light is turned on according to an embodiment of the present invention.

[0048] Figure 4 This is a flowchart of an embodiment of the present invention for controlling the image processing module to perform image analysis processing on the video display image according to the video signal.

[0049] Figure 5 It is a structural schematic diagram of a mobile phone secondary screen fill light control device according to an embodiment of the present invention.

[0050] Figure 6 It is a structural schematic diagram of a mobile phone secondary screen fill light control device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0051] The features and exemplary embodiments of various aspects of the present invention will be described in detail below. In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below in conjunction with the accompanying drawings and Examples. It should be understood that the specific embodiments described herein are only configured to explain the present invention and are not configured to limit the present invention. For those skilled in the art, the present invention can be implemented without the need for some of these specific details. The following description of the embodiments is merely to provide a better understanding of the present invention by illustrating examples of the present invention.

[0052] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, the elements defined by the phrase "comprising..." do not exclude the presence of other identical elements in the process, method, article, or device comprising the elements.

[0053] See Figure 1 , Figure 1 This application provides a method for controlling the fill light of a mobile phone secondary screen, which includes the following steps:

[0054] S1, control the image processing module to receive the video signal from the Scaler module;

[0055] Specifically, in the present embodiment, the Scaler module receives video signals of different signal sources such as HDMI, Typec, USB, DP, etc. Therefore, the present application supports multiple signal sources, and the system is flexible and applicable. Among them, the different signal sources such as HDMI, Typec, USB, DP, etc. can come from one or more of a mobile phone, a computer, and a camera, which are not specifically limited here.

[0056] Specifically, the Scaler module is called "Scaling Module" in full, which is a key component in display technology, used for scaling and displaying image processing of video signals to adapt to the requirements of different display devices.

[0057] S2, control the light sensing module to monitor the ambient brightness in real time, and transmit the ambient brightness data value to the picture processing module;

[0058] S3, control the picture processing module to determine whether to turn on the light supplement lamp according to the ambient brightness data value;

[0059] Specifically, in the present embodiment, the picture processing module determines whether to turn on the light supplement lamp according to the ambient brightness data value. If the ambient brightness is low (for example, the brightness data value is lower than a certain threshold), it is considered that the light supplement lamp needs to be turned on.

[0060] S4, after turning on the light supplement lamp, control the picture processing module to confirm the initial brightness of the light supplement lamp;

[0061] Specifically, in the present embodiment, if it is decided to turn on the light supplement lamp, the picture processing module confirms the initial brightness of the light supplement lamp. This brightness can be determined according to the ambient brightness data and the preset brightness adjustment strategy.

[0062] S5, control the picture processing module to perform picture analysis processing on the video display picture according to the video signal;

[0063] Specifically, in the present embodiment, the picture processing module performs picture analysis processing on the video display picture according to the video signal, including color analysis and brightness analysis.

[0064] S6, according to the result of picture analysis processing, determine the color compensation value and the brightness compensation value of the video display picture;

[0065] S7, according to the color compensation value and the brightness compensation value of the video display picture, perform color compensation and brightness compensation on the video display picture.

[0066] Specifically, in the present embodiment, according to the result of picture analysis processing, the color compensation value and the brightness compensation value of the video display picture are determined. These compensation values are used to adjust the color and brightness of the picture to improve the display effect of the display picture.

[0067] It is worth mentioning that in the present application, the ambient brightness of the mobile phone secondary screen device can be automatically and intelligently adjusted, the picture processing of the mobile phone secondary screen is more intelligent and flexible, the color difference of the video display picture can be compensated, different use scenarios and user needs can be better adapted to, and the user experience and the performance of the device are improved.

[0068] In summary, the present application provides a mobile phone secondary screen light supplement control method. In the present application, the picture processing module receives the video signal from the Scaler module; the light sensing module monitors the ambient brightness in real time and transmits the ambient brightness data value to the picture processing module; the picture processing module compares the ambient brightness data value with the preset brightness value to determine whether to turn on the light supplement lamp; after turning on the light supplement lamp, the picture processing module confirms the initial brightness of the light supplement lamp; the picture processing module analyzes and processes the video display picture according to the video signal; according to the result of the picture analysis and processing, the color compensation value and the brightness compensation value of the video display picture are determined; and the video display picture is color compensated and brightness compensated according to the color compensation value and the brightness compensation value of the video display picture. Therefore, the present application can automatically and intelligently adjust the ambient brightness of the mobile phone secondary screen device, and can compensate the color difference of the video display picture, thereby improving the picture display effect.

[0069] On the basis of the above-mentioned embodiments:

[0070] Please refer to Figure 2 , Figure 2 A flowchart for controlling the picture processing module to determine whether to turn on the light supplement lamp according to the ambient brightness data value is provided in the present application.

[0071] As a preferred embodiment, the control of the picture processing module to determine whether to turn on the light supplement lamp according to the ambient brightness data value comprises:

[0072] S31, the picture processing module compares the ambient brightness data value with the preset brightness value;

[0073] S32, if the ambient brightness data value is less than the preset brightness value, the light supplement lamp is turned on.

[0074] Specifically, in the present embodiment, the system sets a brightness threshold (50). When the brightness value returned by the light sensing module is lower than the threshold, the system automatically turns on the light supplement lamp.

[0075] Please refer to Figure 3 , Figure 3 A flowchart for controlling the picture processing module to confirm the initial brightness of the light supplement lamp after turning on the light supplement lamp is provided in the present application.

[0076] As a preferred embodiment, after the light compensation lamp is turned on, the control of the picture processing module to confirm the initial brightness of the light compensation lamp comprises:

[0077] S41, determining a linear mapping relationship between the ambient brightness data value and the lumen value of the light compensation lamp;

[0078] S42, determining the initial brightness of the light compensation lamp according to the linear mapping relationship.

[0079] Specifically, in this embodiment, the brightness adjustment range of the light compensation lamp is set to 60 to 3000 lumens. The system converts the brightness value (1-50) returned by the light sensing module into the lumen value (3000-60) of the light compensation lamp in a linear mapping manner. Specifically, for every increase of 1 in the brightness value, the lumen value of the light compensation lamp decreases by 60. Alternatively, in another embodiment, the value of the lumen value of the light compensation lamp that decreases for every increase of 1 in the brightness value can be set as needed, which is not specifically limited here.

[0080] Specifically, in this embodiment, when the ambient brightness is high (for example, the data returned by the light sensing module is greater than 50), the system defaults to not turn on the light compensation lamp. However, if the user thinks that light compensation is needed, the light compensation lamp can be manually turned on through a button.

[0081] Please refer to Figure 4 , Figure 4 A flowchart for controlling the picture processing module to perform picture analysis processing on the video display picture according to the video signal is provided for the present application.

[0082] As a preferred embodiment, the control of the picture processing module to perform picture analysis processing on the video display picture according to the video signal comprises:

[0083] S51, controlling the picture processing module to divide the video display picture into regions according to the resolution size;

[0084] Specifically, the picture processing module divides the entire video display picture into N small regions according to the resolution. For example, a picture with a resolution of 1920x1080 can be divided into 400 regions, each region containing 96x54 pixels. In this embodiment, the number of partition regions is not specifically limited. It can be understood that the number of partition regions is in a positive correlation with the analysis precision of the picture brightness and color.

[0085] S52, obtaining the RGB three-color value and the brightness signal of each partition region;

[0086] S53, confirming the color missing value and the brightness missing value of the video display picture according to the RGB three-color value and the brightness signal of each partition region according to a preset operation algorithm.

[0087] Specifically, for each partition, the system analyzes the brightness and color information of the R, G, B three color channels to determine the color deficiency of each partition.

[0088] Specifically, in this embodiment, the system comprehensively compares the analysis results of all partitions to determine the most likely missing color and the required light compensation brightness of the entire picture.

[0089] As a preferred embodiment, the determining the color compensation value and the brightness compensation value of the video display picture according to the results of the picture analysis processing comprises:

[0090] determining the color compensation value of the video display picture according to the color deficiency value of the video display picture;

[0091] determining the brightness compensation value of the video display picture according to the brightness deficiency value of the video display picture.

[0092] Specifically, in this embodiment, according to the analysis results, the system adjusts the R, G, B three color values (in the range of 0-255) and brightness of the light compensation lamp to compensate for the missing color and brightness.

[0093] As a preferred embodiment, the determining the color deficiency value and the brightness deficiency value of the video display picture according to the RGB three color values and the brightness signal of each partition area according to a preset operation algorithm comprises:

[0094] determining the RGB three color values of each partition area according to the RGB color perception brightness calculation formula;

[0095] calculating the total sum of the RGB gray scale quantities of each pixel to determine the color deficiency value and the brightness deficiency value of each partition area.

[0096] As a preferred embodiment, the determining the color deficiency value and the brightness deficiency value of the video display picture according to the RGB three color values and the brightness signal of each partition area according to a preset operation algorithm further comprises:

[0097] The RGB color perception brightness calculation formula is: Brightness = 0.3 * R + 0.6 * G + 0.1 * B.

[0098] Specifically, in this embodiment, after partitioning, the system analyzes the total sum of one order of each of the RGB three colors in each partition area. Assuming that each partition area contains 96*54 = 5184 pixel points, based on the sense of the human eye, the formula for calculating the color perception brightness of RGB is Brightness = 0.3 * R + 0.6 * G + 0.1 * B.

[0099] Specifically, in the embodiment, the missing color value is obtained by calculating the total sum of the RGB gray scale of each pixel after the formula for calculating the color perception brightness of RGB is calculated. For example, if the number of pixels with red data gray scale of 255 in a certain area accounts for more than half of the total number of pixels in the partition area, it is determined that the red brightness is too high, and the red light of the light compensation lamp is turned off and the green or blue light is adjusted to be higher.

[0100] As a preferred embodiment, the brightness of the color can also be compensated by the image processing chip, and a gain method is adopted, for example, the red input is 200 gray scales, and then the preset coefficient 200*1.02=204 is multiplied, so that the input gray scale value is changed by the light compensation lamp, which is not limited specifically herein.

[0101] As a preferred embodiment, the partition area requiring color enhancement can also be set by a nine-square grid, and the user can select one or more areas from 1 to 9 to set whether the cold color or the warm color, which is not limited specifically herein.

[0102] Please refer to Figure 5 , Figure 5 A structure schematic diagram of a mobile phone secondary screen light compensation control device provided by the application.

[0103] The embodiment of the application provides a mobile phone secondary screen light compensation control device, which comprises:

[0104] A signal receiving module 1 is used for controlling a picture processing module to receive a video signal from a Scaler module;

[0105] An ambient brightness monitoring module 2 is used for controlling a light sensing module to monitor the ambient brightness in real time and transmitting an ambient brightness data value to the picture processing module;

[0106] A light compensation lamp control module 3 is used for controlling the picture processing module to determine whether the light compensation lamp is to be turned on according to the ambient brightness data value;

[0107] An initial brightness control module 4 is used for controlling the picture processing module to confirm the initial brightness of the light compensation lamp after the light compensation lamp is turned on;

[0108] A picture analysis processing module 5 is used for controlling the picture processing module to perform picture analysis processing on a video display picture according to the video signal;

[0109] A compensation confirmation module 6 is used for determining the color compensation value and the brightness compensation value of the video display picture according to the result of the picture analysis processing;

[0110] The color brightness compensation module 7 is configured to compensate the color and brightness of the video display picture according to the color compensation value and the brightness compensation value of the video display picture.

[0111] In addition, in combination with Figure 1 The mobile phone secondary screen light compensation control method described in the embodiments of the present application can be implemented by a mobile phone secondary screen light compensation control device. Figure 6 A hardware structure schematic diagram of the mobile phone secondary screen light compensation control device provided by the embodiments of the present application is shown.

[0112] The mobile phone secondary screen light compensation control device can include a processor 401 and a memory 402 storing computer program instructions.

[0113] Specifically, the processor 401 can include a central processing unit (CPU), or an application specific integrated circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of the present application.

[0114] The memory 402 can include a mass storage for data or instructions. By way of example and not limitation, the memory 402 can include a hard disk drive (HDD), a floppy disk drive, a flash memory, an optical disk, a magneto-optical disk, a magnetic tape, or a universal serial bus (USB) drive or a combination of two or more of these. Where appropriate, the memory 402 can include removable or non-removable (or fixed) media. Where appropriate, the memory 402 can be internal or external to the data processing apparatus. In certain embodiments, the memory 402 is non-volatile solid-state memory. In certain embodiments, the memory 402 includes read-only memory (ROM). Where appropriate, this ROM can be mask-programmed ROM, programmable ROM (PROM), erasable PROM (EPROM), electrically erasable PROM (EEPROM), electrically alterable ROM (EAROM), or flash memory, or a combination of two or more of these.

[0115] The processor 401 reads and executes the computer program instructions stored in the memory 402 to implement any of the mobile phone secondary screen light compensation control methods described in the embodiments.

[0116] In one example, the mobile phone secondary screen light compensation control device can further include a communication interface 403 and a bus 410. Wherein, as Figure 6 shown, the processor 401, the memory 402, and the communication interface 403 are connected through the bus 410 and complete communication among each other.

[0117] The communication interface 403 is mainly used to implement communication between various modules, devices, units and / or equipment in the embodiment of the present invention.

[0118] The bus 410 includes hardware, software, or both, coupling the components of the mobile phone secondary screen fill light control device to each other. By way of example and not limitation, the bus may include an accelerated graphics port (AGP) or other graphics bus, an enhanced industry standard architecture (EISA) bus, a front-side bus (FSB), a hypertransport (HT) interconnect, an industry standard architecture (ISA) bus, an infinite bandwidth interconnect, a low pin count (LPC) bus, a memory bus, a microchannel architecture (MCA) bus, a peripheral component interconnect (PCI) bus, a PCI-Express (PCI-X) bus, a serial advanced technology attachment (SATA) bus, a video electronics standard association local (VLB) bus, or other suitable buses or a combination of two or more of the above. Where appropriate, the bus 410 may include one or more buses. Although the embodiments of the present invention describe and illustrate specific buses, the present invention contemplates any suitable bus or interconnect.

[0119] In addition, in conjunction with the mobile phone secondary screen fill light control method in the above-mentioned embodiment, the present invention can provide a computer-readable storage medium for implementation. The computer-readable storage medium stores computer program instructions; when the computer program instructions are executed by a processor, any of the mobile phone secondary screen fill light control methods in the above-mentioned embodiment is implemented.

[0120] It should also be noted that the exemplary embodiments described herein describe methods or systems based on a series of steps or devices. However, the present invention is not limited to the order of the steps described above. In other words, the steps may be performed in the order described in the embodiments, or in a different order, or several steps may be performed simultaneously.

[0121] The above description is only a specific embodiment of the present invention. Those skilled in the art will clearly understand that for the convenience and brevity of description, the specific working processes of the systems, modules and units described above can refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here. It should be understood that the protection scope of the present invention is not limited to this. Any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be included in the protection scope of the present invention.

Claims

1. A method for controlling fill light of a mobile phone secondary screen, characterized in that: The method comprises: Control the image processing module to receive the video signal from the Scaler module; Control the light sensing module to monitor the ambient brightness in real time and transmit the ambient brightness data value to the image processing module; Controlling the image processing module to compare the ambient brightness data value with a preset brightness value to determine whether to turn on the fill light; After turning on the fill light, controlling the image processing module to confirm the initial brightness of the fill light; Controlling the image processing module to perform image analysis processing on the video display image according to the video signal includes: Controlling the image processing module to divide the video display image into regions according to the resolution; Get the RGB color value and brightness signal of each partition area; Determining the color missing value and the brightness missing value of the video display screen according to the RGB three-color value and the brightness signal of each of the partitioned areas according to a preset calculation algorithm; Determining a color compensation value and a brightness compensation value of the video display image based on a result of the image analysis processing; Color compensation and brightness compensation are performed on the video display picture according to the color compensation value and the brightness compensation value of the video display picture.

2. The method for controlling the fill light of the secondary screen of a mobile phone according to claim 1, characterized in that: The controlling the image processing module to compare the ambient brightness data value with a preset brightness value to determine whether to turn on the fill light includes: Controlling the image processing module to compare the ambient brightness data value with a preset brightness value; If the ambient brightness data value is less than the preset brightness value, turn on the fill light.

3. The method for controlling the fill light of the secondary screen of a mobile phone according to claim 1, characterized in that: After the fill light is turned on, controlling the image processing module to confirm the initial brightness of the fill light includes: Determine a linear mapping relationship between the ambient brightness data value and the lumen value of the fill light; The initial brightness of the fill light is determined according to the linear mapping relationship.

4. The method for controlling the fill light of the secondary screen of a mobile phone according to claim 3, characterized in that: Determining the color compensation value and the brightness compensation value of the video display image based on the result of the image analysis processing includes: Determining a color compensation value of the video display screen according to the color loss value of the video display screen; A brightness compensation value of the video display picture is determined according to the brightness missing value of the video display picture.

5. The method for controlling the fill light of the secondary screen of a mobile phone according to claim 4, characterized in that: The step of determining the color missing value and the brightness missing value of the video display screen according to a preset calculation algorithm based on the RGB three-color value and the brightness signal of each partitioned area includes: Determining the RGB three-color value of each of the partitioned areas according to the RGB color perception brightness calculation formula; The sum of the RGB grayscale values ​​of each pixel is calculated to confirm the color missing value and brightness missing value of each partition area.

6. The method for controlling the fill light of the secondary screen of a mobile phone according to claim 5, characterized in that: The determining of the color missing value and the brightness missing value of the video display screen according to a preset calculation algorithm based on the RGB three-color value and the brightness signal of each partitioned area further includes: RGB color perception brightness calculation formula: Brightness=0.3*R+0.6*G+0.1*B.

7. A mobile phone secondary screen fill light control device, characterized in that: The device comprises: The signal receiving module is used to control the image processing module to receive the video signal from the Scaler module; An environmental brightness monitoring module is used to control the light sensing module to monitor the environmental brightness in real time and transmit the environmental brightness data value to the image processing module; A fill light control module, configured to control the image processing module to compare the ambient brightness data value with a preset brightness value to determine whether to turn on the fill light; An initial brightness control module, configured to control the image processing module to determine the initial brightness of the fill light after the fill light is turned on; The picture analysis and processing module is used to control the picture processing module to perform picture analysis and processing on the video display picture according to the video signal, including: Controlling the image processing module to divide the video display image into regions according to the resolution; Get the RGB color value and brightness signal of each partition area; Determining the color missing value and the brightness missing value of the video display screen according to the RGB three-color value and the brightness signal of each of the partitioned areas according to a preset calculation algorithm; The compensation confirmation module is used to determine the color compensation value and brightness compensation value of the video display screen according to the result of the screen analysis processing; The color and brightness compensation module is used to perform color compensation and brightness compensation on the video display screen according to the color compensation value and brightness compensation value of the video display screen.

8. A mobile phone secondary screen fill light control device, characterized in that: include: At least one processor, at least one memory, and computer program instructions stored in the memory, which implement the method according to any one of claims 1 to 6 when the computer program instructions are executed by the processor.

9. A storage medium having computer program instructions stored thereon, characterized in that: When the computer program instructions are executed by a processor, the method according to any one of claims 1 to 6 is implemented.

Images