CN113630535A

CN113630535A - Television-based face shooting light supplementing method, equipment, storage medium and device

Info

Publication number: CN113630535A
Application number: CN202110905716.6A
Authority: CN
Inventors: 黄源勤
Original assignee: Shenzhen Skyworth RGB Electronics Co Ltd
Current assignee: Shenzhen Skyworth RGB Electronics Co Ltd
Priority date: 2021-08-06
Filing date: 2021-08-06
Publication date: 2021-11-09
Anticipated expiration: 2041-08-06
Also published as: CN113630535B

Abstract

The invention discloses a television-based face shooting light supplementing method, equipment, a storage medium and a device, which are used for identifying the face position of a current image acquired by a television camera and determining a preset light supplementing area according to the face display position; and when the human face picture does not reach the optimal light state, adjusting the display parameters corresponding to the preset light supplement area so as to enable the human face picture to reach the optimal light state. According to the method, the face is supplemented with light according to the preset light supplementing area on the television screen, and the display parameters corresponding to the preset light supplementing area are adjusted to enable the face picture in the shot image to reach the optimal light state.

Description

Television-based face shooting light supplementing method, equipment, storage medium and device

Technical Field

The invention relates to the field of televisions, in particular to a method, equipment, a storage medium and a device for supplementing light for face shooting based on a television.

Background

At present, as the indispensable electrical equipment for household use, the television is becoming higher and higher along with the development of scientific technology and the functional requirements of people on television products. For bringing more functions and experiences to users, a camera product is carried on a plurality of televisions, and the users can use a large screen to do video chat, live broadcast interaction, make-up and the like in front of the televisions. Therefore, the mobile phone and the PAD have unique functions that are difficult to replace. Under a large screen picture, the improvement of the picture effect of television camera shooting is particularly important for improving the user experience. However, in the prior art, the camera of the television is very poor in image effect due to dark ambient light or uneven ambient light distribution, especially, high face light and dark shadow contrast are obvious, and the user experience effect is seriously influenced.

The above is only for the purpose of assisting understanding of the technical aspects of the present invention, and does not represent an admission that the above is prior art.

Disclosure of Invention

The invention mainly aims to provide a method, equipment, a storage medium and a device for supplementing light for face shooting based on a television, and aims to solve the technical problem that a television camera in the prior art is poor in shooting effect due to uneven light distribution of the environment.

In order to achieve the above object, the present invention provides a light supplement method for face shooting based on a television, which comprises the following steps:

acquiring a current image acquired by a television camera;

carrying out face position identification on the current image to acquire a face display position of a face picture on a display screen;

determining a preset light supplementing area according to the face display position;

detecting whether the face picture reaches an optimal light state;

and when the human face picture does not reach the optimal light state, adjusting display parameters corresponding to the preset light supplement area so as to enable the human face picture in subsequent images collected by the television camera to reach the optimal light state.

Optionally, the preset light supplement area comprises a human face light supplement light emitting area and an auxiliary light supplement area;

the step of determining the preset light supplementing area according to the face display position comprises the following steps:

acquiring the screen size of the display screen, and determining the area zoom ratio according to the screen size;

zooming the area corresponding to the face display position according to the area zooming ratio to determine the face light supplementing light emitting area;

and taking the region except the human face light supplementing light emitting region in the preset light supplementing region as the auxiliary light supplementing region.

Optionally, the step of detecting whether the face image reaches the optimal light state includes:

acquiring facial light parameters of a face picture in the current image, wherein the facial light parameters comprise brightness, brightness uniformity and/or saturation complexion;

and detecting whether the face picture in the current image reaches the optimal light state or not according to the face light parameters.

Optionally, when the face picture does not reach the optimal light state, adjusting display parameters corresponding to the preset light compensation region to enable the face picture in subsequent images acquired by the television camera to reach the optimal light state includes:

and when the human face picture does not reach the optimal light state, adjusting the display parameters of the human face light supplementing light emitting area and/or the display parameters of the auxiliary light supplementing area so as to enable the human face picture in the subsequent images collected by the television camera to reach the optimal light state.

Optionally, the display parameter includes a screen brightness value, and the optimal light condition includes an optimal brightness condition;

when the face picture does not reach the optimal light state, adjusting display parameters of the face light supplement light emitting area and/or display parameters of the auxiliary light supplement area so as to enable the face picture in subsequent images collected by the television camera to reach the optimal light state, wherein the step comprises the following steps of:

when the face picture does not reach the optimal light state, acquiring an initial screen brightness value of the face light supplementing light emitting area and/or an initial screen brightness value of the auxiliary light supplementing area;

and dynamically adjusting the initial screen brightness value of the face light supplementing light emitting area and/or the initial screen brightness value of the auxiliary light supplementing area according to a preset step value so as to enable the face pictures in subsequent images acquired by the television camera to reach the optimal brightness state.

Optionally, the display parameter comprises a color temperature parameter, and the optimal light condition comprises an optimal color temperature condition;

when the face picture does not reach the optimal light state, performing skin color analysis on the face picture, and acquiring skin color temperature deviation and ambient light color temperature according to a skin color analysis result;

and when the skin color temperature deviation is not in a preset color temperature deviation range, adjusting the color temperature parameter of the face supplementary lighting area and/or the color temperature parameter of the auxiliary supplementary lighting area according to the ambient light color temperature so as to enable the face picture in the subsequent image collected by the television camera to reach the optimal color temperature state.

Optionally, before the step of obtaining the current image acquired by the television camera, the method further includes:

acquiring the current ambient light intensity;

judging whether a screen light supplement mode is started or not according to preset ambient light intensity and the current ambient light intensity;

and when the current ambient light intensity is less than the preset ambient light intensity, starting a screen light supplement mode, and executing the step of acquiring the current image acquired by the television camera.

In addition, in order to achieve the above object, the present invention further provides a television-based face shooting supplementary lighting apparatus, where the television-based face shooting supplementary lighting apparatus includes a memory, a processor, and a television-based face shooting supplementary lighting program stored in the memory and capable of running on the processor, and the television-based face shooting supplementary lighting program is configured to implement the above steps of the television-based face shooting supplementary lighting method.

In addition, in order to achieve the above object, the present invention further provides a storage medium, where a television-based face shooting supplementary lighting program is stored on the storage medium, and when executed by a processor, the television-based face shooting supplementary lighting program implements the steps of the television-based face shooting supplementary lighting method.

In addition, in order to achieve the above object, the present invention further provides a light supplement device for face shooting based on a television, where the light supplement device for face shooting based on a television includes:

the image acquisition module is used for acquiring a current image acquired by a television camera;

the position determining module is used for carrying out face position identification on the current image so as to obtain a face display position of a face picture on a display screen;

the area determining module is used for determining a preset light supplementing area according to the face display position;

the state detection module is used for detecting whether the face picture reaches the optimal light state;

and the parameter adjusting module is used for adjusting the display parameters corresponding to the preset light supplementing area when the face picture does not reach the optimal light state, so that the face picture in the subsequent images collected by the television camera reaches the optimal light state.

The method comprises the steps of acquiring a current image acquired by a television camera; carrying out face position identification on the current image to acquire a face display position of a face picture on a display screen; determining a preset light supplementing area according to the face display position; detecting whether the face picture reaches the optimal light state; and when the human face picture does not reach the optimal light state, adjusting display parameters corresponding to the preset light supplement area so as to enable the human face picture in subsequent images collected by the television camera to reach the optimal light state. Because the invention carries out face position recognition on the collected image according to the camera arranged on the television, thereby determining the face display position on the display screen, supplementing light to the face according to the preset light supplementing area on the television screen, and adjusting the display parameters corresponding to the preset light supplementing area to enable the face picture in the shot image to reach the optimal light state, compared with the prior art, the invention can cause very poor shot image effect due to dark ambient light or uneven ambient light distribution of the camera of the television, especially has obvious contrast between high light and dark shadow on the face, thereby seriously influencing the user experience effect, realizing that the shot image can be intelligently analyzed, supplementing light can be adjusted according to the defects to improve the shooting quality, and the light can be emitted through the television area, and the face in front of the television can be accurately supplemented with light to achieve accurate face light supplementation, the picture with better shooting effect is shot, so that the effect and quality of the television on the face shooting are improved, and the user experience is improved.

Drawings

Fig. 1 is a schematic structural diagram of a television-based face camera light supplement device in a hardware operating environment according to an embodiment of the present invention;

fig. 2 is a schematic flow chart of a television-based face shooting light supplement method according to a first embodiment of the present invention;

fig. 3 is a schematic diagram of a television according to a first embodiment of the light supplementing method for face shooting based on the television of the present invention;

FIG. 4 is a side view of a screen for supplementing light when a camera shoots a picture according to the first embodiment of the method for supplementing light for human face shooting based on a television of the present invention

Fig. 5 is a schematic flow chart of a television-based face camera light supplement method according to a second embodiment of the present invention;

FIG. 6 is a schematic diagram of screen light supplement of a second embodiment of the method for supplementing light for face shooting based on a television set according to the present invention

Fig. 7 is a schematic flow chart of a television-based face camera light supplement method according to a third embodiment of the present invention;

fig. 8 is a block diagram of a first embodiment of a light supplement apparatus for human face photographing based on a television according to the present invention.

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a television-based face camera light supplement device in a hardware operating environment according to an embodiment of the present invention.

As shown in fig. 1, the television-based face camera light supplement device may include: a processor 1001, such as a Central Processing Unit (CPU), a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. Wherein a communication bus 1002 is used to enable connective communication between these components. The user interface 1003 may include a Display screen (Display), and the optional user interface 1003 may further include a standard wired interface and a wireless interface, and the wired interface for the user interface 1003 may be a USB interface in the present invention. The network interface 1004 may optionally include a standard wired interface, a Wireless interface (e.g., a Wireless-Fidelity (Wi-Fi) interface). The Memory 1005 may be a Random Access Memory (RAM) or a Non-volatile Memory (NVM), such as a disk Memory. The memory 1005 may alternatively be a storage device separate from the processor 1001.

Those skilled in the art will appreciate that the configuration shown in fig. 1 does not constitute a limitation of the television-based face camera fill-in light device, and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.

As shown in fig. 1, a memory 1005, identified as a computer storage medium, may include an operating system, a network communication module, a user interface module, and a television-based facial camera fill-in program.

In the television-based face camera light supplement device shown in fig. 1, the network interface 1004 is mainly used for connecting a background server and performing data communication with the background server; the user interface 1003 is mainly used for connecting user equipment; the television-based face camera light supplement device calls a television-based face camera light supplement program stored in a memory 1005 through a processor 1001, and executes the television-based face camera light supplement method provided by the embodiment of the invention.

Based on the hardware structure, the embodiment of the face shooting light supplement method based on the television is provided.

Referring to fig. 2, fig. 2 is a schematic flow chart of a television-based face shooting light supplement method according to a first embodiment of the present invention, and the first embodiment of the television-based face shooting light supplement method according to the present invention is provided.

In this embodiment, the light supplementing method for face shooting based on a television includes the following steps:

step S10: and acquiring a current image acquired by a television camera.

It should be noted that the execution subject in this embodiment may be a face shooting light supplement system based on a television, or may be a device including a face shooting light supplement function. The device may be a computer, a notebook, a computer, a mobile phone, a television, and the like, which is not limited in this embodiment. In the present embodiment, a face shooting light supplement system is taken as an execution subject for explanation.

It should be understood that the television side is integrated with a camera, an ambient light sensor, a microphone or infrared receiver, a main board module, a power supply module, and a display screen (OLED screen or LCD screen). The camera is used for completing photographing and identifying functions; the system end judges whether to take a picture or identify whether to trigger a light supplementing measure according to the intensity value; the microphone and the infrared receiver are used for receiving instructions, the microphone is suitable for far-field voice control, the infrared receiver is suitable for a remote controller control mode, and if the remote controller is a Bluetooth voice remote controller, Bluetooth sending of the instructions can be achieved, or voice control can be achieved; the main board module is responsible for operating an intelligent television operating system and is responsible for realizing functions of photographing, recognition, light supplement control, image display and the like in the embodiment; the power supply module is responsible for supplying energy to the mainboard and the screen; the display screen (OLED screen or LCD screen) is responsible for supplementing light to the environment. The face shooting light supplement system can comprise a main control unit, a camera and a display screen, and the camera and the display screen are connected to the same main control unit. The picture shot by the camera is transmitted to the main control unit, and the main control unit transmits the shot picture information to the display screen for display after signal processing and conversion. And meanwhile, the face position is identified and optically analyzed according to the shot picture, and the light is supplemented to the face accurately by adjusting the face position of the light supplementing area of the television screen to emit light.

It is understood that the current image may include a face image and a scene image, the face image may be a single person or a plurality of persons, and the scene image may be other scene images around the face. The current image may be one frame image.

In specific implementation, the human face shooting light supplement system can collect the current image through a television camera. For further explanation, referring to the schematic diagram of the television in fig. 3 and a side view of the screen supplementary lighting when the camera in fig. 4 takes a picture, 101 is a camera embedded in the top of the television, and is used for taking a video screen or a photo and displaying the video screen or the photo in the screen of the television. 102 and 103 are television display areas. 102 is an area for displaying the shot picture on the screen of the television, and is used for displaying the real-time picture shot by the camera of the television. 103, a light-supplementing light-emitting area is provided for the camera shooting picture by the screen, and a surface light source is added to the shot human face by adjusting the light emission of a certain specific position in the area. A camera is shown at 201, and a solid line area shown at 202 is a shooting range covered by the camera. 203 is a television screen and 204 shows the direction of the screen's luminous emission. 205 is the position of the face photographed by the camera. The light emitted by the television screen can just irradiate the surface of the shot object, so that the shot object can receive a very good surface light source, and the picture shot by the camera is better.

Step S20: and carrying out face position identification on the current image to acquire a face display position of a face picture on a display screen.

The human face position recognition can be that a human face image recognition function carried by the camera finds out the human face position accurately through a shot image picture, the human face image recognition function can determine the position information of each main facial organ of the human face position and the size through an input human face image or a video stream, and the characteristics contained in the human face image can be dynamic target tracking through skin color characteristics, structural characteristics and collected face appearance, so that the human face display position of the human face picture on a display screen is accurately determined in the shooting process.

It can be understood that the face display position of the face picture on the display screen may be a face display position corresponding to a small screen, or a face display position corresponding to a large screen or a full screen.

In specific implementation, the light supplement system for face shooting can identify the face position of the current image to obtain the face display position of the face picture on the display screen.

Step S30: determining a preset light supplement area according to the face display position

It should be noted that the preset light supplement area may be an area for supplementing light to a face of a user, and the preset light supplement area may determine an area range according to a position size of the face.

Step S40: and detecting whether the face picture reaches the optimal light state.

It should be noted that the optimal light state may be a light state corresponding to an optimal effect achieved according to a shot human face picture, and the light state may include a state corresponding to ambient light and screen fill light. The state corresponding to the ambient light may refer to states of ambient light intensity, ambient light color temperature, and the like, and the state corresponding to the screen fill light may refer to states of screen fill light brightness, fill light color temperature, and the like.

In the specific implementation, the face shooting light supplement system can detect whether the face picture reaches the optimal light state when the face display position is located in the preset light supplement area of the display screen, so that the optimal portrait shooting effect is achieved.

Step S50: and when the human face picture does not reach the optimal light state, adjusting display parameters corresponding to the preset light supplement area so as to enable the human face picture in subsequent images collected by the television camera to reach the optimal light state.

It should be noted that the display parameter corresponding to the preset light supplement region may be a screen brightness parameter corresponding to the preset light supplement region, or may be a screen color temperature, a screen color tone, or other parameters.

It can be understood that the subsequent image may be the next frame of image collected by the camera when the face picture does not reach the optimal light state.

In specific implementation, the human face shooting light supplement system can supplement light to the human face by adjusting display parameters corresponding to the preset light supplement area, namely, by adjusting parameters such as screen brightness and color temperature of the preset light supplement area, so that human face pictures in subsequent images acquired by a television camera reach the optimal light state.

In the embodiment, the current image acquired by the television camera is acquired; carrying out face position identification on the current image to acquire a face display position of a face picture on a display screen; determining a preset light supplementing area according to the face display position; detecting whether the face picture reaches the optimal light state; and when the human face picture does not reach the optimal light state, adjusting display parameters corresponding to the preset light supplement area so as to enable the human face picture in subsequent images collected by the television camera to reach the optimal light state. Because the invention carries out face position recognition on the collected image according to the camera arranged on the television, thereby determining the face display position on the display screen, supplementing light to the face according to the preset light supplementing area on the television screen, and adjusting the display parameters corresponding to the preset light supplementing area to enable the face picture in the shot image to reach the optimal light state, compared with the prior art, the embodiment can cause very poor shot image effect due to dark ambient light or uneven ambient light distribution of the television camera, especially has obvious contrast between high light and dark shadow on the face, and seriously affects the user experience effect, the embodiment realizes that the shot image can be analyzed, the supplemented light can be adjusted according to the defects to improve the shooting quality, and the light can be supplemented to the face in front of the television accurately through the light emitting of the television area, so as to achieve accurate face light supplementing, the picture with better shooting effect is shot, so that the effect and quality of the television on the face shooting are improved, and the user experience is improved.

Referring to fig. 5, fig. 5 is a schematic flow chart of a light supplement method for face shooting based on a television according to a second embodiment of the present invention, and the second embodiment of the light supplement method for face shooting based on a television according to the present invention is proposed based on the first embodiment shown in fig. 2.

In this embodiment, the preset light compensation region includes a human face light compensation light emitting region and an auxiliary light compensation region, and step S30 includes:

step S301: and acquiring the screen size of the display screen, and determining the area scaling ratio according to the screen size.

It should be noted that the screen size may refer to the size of the display screen of the television, and the area zoom ratio is related to the size of the screen of the television.

Step S302: and zooming the area corresponding to the face display position according to the area zooming ratio to determine the face light supplementing luminous area.

It should be noted that, because the light emitted from the screen of the television has divergence, the light emitting area of the fill-in screen is scaled according to the actual display area and the area scaling ratio, and the area scaling ratio is related to the size of the screen.

In a specific implementation, the zoom ratio a (%), the screen size b (inch), and the relationship between a and b is (115-b)/100, for example, the light-supplementing light-emitting area of a 65-inch television face is 50%. This algorithm is only applicable to televisions within 50-85 inches. Other sizes of televisions may adjust the algorithm by actual development. The supplementary lighting light can accurately irradiate the position of the human face. The zoom ratio and the screen size are not particularly limited in this embodiment.

Step S303: and taking the region except the human face light supplementing light emitting region in the preset light supplementing region as the auxiliary light supplementing region.

It should be noted that the screen of the television can be divided into three areas, namely a display area, a face light supplementing light emitting area and an auxiliary light supplementing area.

In specific implementation, for further explanation, reference may be made to a light supplement schematic diagram of a screen in fig. 6, and a face position is accurately found out through a face image recognition function of an image picture shot by a camera. The position 301 of the face in the picture is shot as follows, and when the picture is displayed in a full screen by simulation, the position and the size of the face are found, and the area is the face light supplement light emitting area 302 for supplementing light to the face. And the luminance and the color temperature of the light supplement area are adjusted through an intelligent algorithm to accurately supplement light to the face. The other light supplement areas of the screen are auxiliary light supplement areas 303. The brightness of the auxiliary light supplement area can be set to be not more than 30% of the brightness of the face light supplement area, and the face light supplement effect is prevented from being influenced.

In this embodiment, the step S40 includes:

step S401: and acquiring facial light parameters of a face picture in the current image, wherein the facial light parameters comprise brightness, brightness uniformity and/or saturation complexion.

It should be noted that the facial light parameters may include parameters such as face background brightness, brightness uniformity, and/or saturation skin color, where the brightness may refer to facial brightness corresponding to a face picture in a current image, the brightness uniformity may refer to a uniformity degree of the brightness corresponding to the face picture, that is, a brightness-dark transition degree of a light and shadow corresponding to the face picture in the collected face picture, and the facial saturation skin color may refer to facial skin color saturation corresponding to the face picture in the current image, or may refer to normal saturation skin color corresponding to the face picture in a history shot image, that is, saturation corresponding to normal skin color shot under normal light, or may refer to skin color saturation corresponding to normal skin color obtained after processing (for example, there is no problem of redness, yellowing, and the like). In this embodiment, the facial light parameters are not limited to human faces, and may also include light parameters corresponding to the exposed skin of the person in the current image, for example: light parameters of neck, arm, etc. positions.

The human face shooting light supplement system can convert the collected shooting pictures into HSV spaces in RGB spaces, perform threshold segmentation in the HSV spaces to obtain segmentation graphs, and perform edge enhancement, median filtering and other processing on the segmentation graphs, so that facial light parameters are accurately obtained.

Step S402: and detecting whether the face picture in the current image reaches the optimal light state or not according to the face light parameters.

It should be noted that the face shooting light supplement system can detect whether the face picture in the current image reaches the optimal light state according to the face light parameters, so as to facilitate the subsequent accurate light supplement step.

In this embodiment, the step S50 includes: and when the human face picture does not reach the optimal light state, adjusting the display parameters of the human face light supplementing light emitting area and/or the display parameters of the auxiliary light supplementing area so as to enable the human face picture in the subsequent images collected by the television camera to reach the optimal light state.

In the specific implementation, when the face picture does not reach the optimal light state, the face shooting light supplement system can enable the face picture in the subsequent image collected by the television camera to reach the optimal light state by adjusting the display parameters of the face light supplement light emitting area or adjusting the display parameters of the auxiliary light supplement area, and can also enable the face picture in the subsequent image collected by the television camera to reach the optimal light state by adjusting the display parameters of the face light supplement light emitting area and adjusting the display parameters of the auxiliary light supplement area. In this embodiment, the display parameters of the light emitting region for face supplementary lighting and the display parameters of the auxiliary light emitting region may be adjusted individually or together.

In this embodiment, the display parameters include screen brightness values, and the optimal light condition includes an optimal brightness condition; when the face picture does not reach the optimal light state, adjusting display parameters of the face light supplement light emitting area and/or display parameters of the auxiliary light supplement area so as to enable the face picture in subsequent images collected by the television camera to reach the optimal light state, wherein the step comprises the following steps of: when the face picture does not reach the optimal light state, acquiring an initial screen brightness value of the face light supplementing light emitting area and/or an initial screen brightness value of the auxiliary light supplementing area; and dynamically adjusting the initial screen brightness value of the face light supplementing light emitting area and/or the initial screen brightness value of the auxiliary light supplementing area according to a preset step value so as to enable the face pictures in subsequent images acquired by the television camera to reach the optimal brightness state.

It should be noted that the initial screen brightness may be brightness during a black screen or adjusted screen brightness, and the preset step value may be a preset adjustment value corresponding to the adjusted screen brightness.

It can be understood that the initial screen brightness value of the face supplementary lighting light emitting region and the initial screen brightness value of the auxiliary supplementary lighting region may be different brightness values, and the screen brightness of the face supplementary lighting light emitting region and/or the auxiliary supplementary lighting region may be used when the brightness of the screen is adjusted.

In specific implementation, the human face shooting light supplement system can set the screen light supplement brightness value to be 0-n, wherein 0 is the minimum brightness, namely the brightness when the screen is a black screen, and n is the maximum brightness of the screen, and if the adjustment stepping value is 1, the maximum brightness value n is set to be n equal divisions. For example: if n is set to 50, the maximum brightness value of the screen fill light is divided into 50 equal parts. Firstly, when the light supplement mode is started, the screen firstly supplements light for a scene (including a human face) by a bright value of 1, the camera shoots a frame of picture in real time and transmits the frame of picture to the main control unit for analysis, at the moment, whether the picture reaches an optimal brightness state or not is judged, if the picture does not reach the optimal brightness state, the brightness value is adjusted to 2, the camera continues sampling analysis, and so on until the picture shot by the main control unit is analyzed to be the optimal effect, and at the moment, the brightness value of the supplemented light is the optimal brightness value. The process is carried out in real time, and when the shot scenery changes, the light supplementing operation can be adjusted accordingly.

In this embodiment, the display parameters include color temperature parameters, and the optimal light condition includes an optimal color temperature condition; when the face picture does not reach the optimal light state, adjusting display parameters of the face light supplement light emitting area and/or display parameters of the auxiliary light supplement area so as to enable the face picture in subsequent images collected by the television camera to reach the optimal light state, wherein the step comprises the following steps of: when the face picture does not reach the optimal light state, performing skin color analysis on the face picture, and acquiring skin color temperature deviation and ambient light color temperature according to a skin color analysis result; and when the skin color temperature deviation is not in a preset color temperature deviation range, adjusting the color temperature parameter of the face supplementary lighting area and/or the color temperature parameter of the auxiliary supplementary lighting area according to the ambient light color temperature so as to enable the face picture in the subsequent image collected by the television camera to reach the optimal color temperature state.

It should be noted that, when the light supplement system for face photography performs light supplement operation, adjusting the screen brightness and adjusting the color temperature parameter may be performed simultaneously or separately, that is, the parameters to be adjusted are specifically adjusted according to the face picture, for example: when the collected human face picture is in the optimal light state only by adjusting the brightness, namely only by adjusting the brightness of the screen, and when the collected human face picture is in the optimal light state only by adjusting the color temperature parameter, namely only by adjusting the color temperature parameter of the screen, and when the collected human face picture is in the optimal light state only by adjusting the brightness and the color temperature parameter of the screen, the human face shooting light supplement system can adjust the brightness of the screen, and the main control unit can also analyze the skin color according to the shot human face picture and adjust the color temperature parameter of the human face light supplement light emitting region and/or the color temperature parameter of the auxiliary light supplement region according to the ambient light color temperature, so that the human face picture in the subsequent image collected by the television camera can reach the optimal color temperature state.

It can be understood that if the color temperature of the skin color is deviated, the color temperature of the screen light supplementing area can be adjusted, the camera shoots, samples and compares the color temperature, and when the color temperature is deviated, the light supplementing color temperature is adjusted to correct the color temperature of the ambient light. So as to achieve the best portrait shooting effect. The face shooting light supplement system can supplement light by setting different shooting scenes and displaying different colors on different scene screens, for example, as follows: in the standard mode, the screen is switched to a white field mode for light supplement, and the shot picture is in the standard mode; in the warm color mode, the screen is switched to warm yellow to supplement light, and the shot photos are in the warm mode; and other color modes. The embodiment does not limit the specific mode of the fill-in color temperature.

It should be understood that the color temperatures of the light supplementing light emitting area and the auxiliary light supplementing area can be locally adjusted, and specifically, the color temperatures can be adjusted according to the requirements of human face pictures.

In the specific implementation, the television camera shoots a picture, the collected picture is transmitted to the main control unit for processing, the picture can be displayed in a display area on the display screen, a face light supplement position area is found through intelligent recognition, the face picture is detected to reach an optimal state through an image recognition algorithm, when the face picture does not reach the optimal state, the main control unit can adjust the brightness and/or the color temperature of a preset light supplement area (a face light supplement luminous area and/or an auxiliary light supplement area) through a control screen, so that the face picture in subsequent images collected by the television camera reaches the optimal light state, and when the face picture in the subsequent images collected by the television camera reaches the optimal light state, the optimal image effect is displayed.

In the embodiment, the current image acquired by the television camera is acquired; and carrying out face position identification on the current image to acquire the face display position of the face picture on the display screen. The preset light supplementing area comprises a face light supplementing light emitting area and an auxiliary light supplementing area, the screen size of a display screen is obtained, and the area scaling ratio is determined according to the screen size; zooming the area corresponding to the display position of the face according to the area zooming ratio to determine a light supplementing luminous area of the face; and taking the region except the human face light supplementing light emitting region in the preset light supplementing region as an auxiliary light supplementing region. Acquiring facial light parameters of a face picture in a current image, wherein the facial light parameters comprise brightness, brightness uniformity and/or saturation complexion; whether the face picture in the current image reaches the optimal light state is detected according to the face light parameters, and when the face picture does not reach the optimal light state, display parameters corresponding to a preset light supplement area are adjusted, so that the face picture in a subsequent image collected by a television camera reaches the optimal light state. The display parameters comprise a screen brightness value and a color temperature parameter, because the embodiment analyzes the facial light parameter of the shot picture, and when the human face picture does not reach the optimal light state, the embodiment adjusts the screen brightness value and/or the color temperature parameter of the preset light supplement region (the human face light supplement luminous region and/or the auxiliary light supplement region) to enable the human face picture in the subsequent images collected by the television camera to reach the optimal light state, compared with the prior art, the embodiment causes very poor shot image effect due to dark ambient light or uneven ambient light distribution, especially obvious facial highlight and shadow contrast, seriously affects the user experience effect, the embodiment realizes that the supplementary light can be adjusted according to the analysis shot image and the deficiency to improve the shooting quality, and the region of the television can emit light, the accurate people face to before the TV set carries out the light filling to reach accurate people face light filling, shoot the better picture of effect, thereby improve the TV set and make a video recording effect and quality to the face, promote user experience.

Referring to fig. 7, fig. 7 is a schematic flow chart of a light supplement method for face shooting based on a television according to a third embodiment of the present invention, and the third embodiment of the light supplement method for face shooting based on a television according to the present invention is proposed based on the first embodiment shown in fig. 2.

In this embodiment, before the step S10, the method further includes:

step S01: and acquiring the current ambient light intensity.

It should be noted that, in this embodiment, the photographing instruction may be initiated through voice or remote control, and the face photographing light supplement system receives the photographing instruction, detects the current ambient light intensity first, and obtains the current ambient light intensity.

It can be understood that the human face shooting and light supplementing system can automatically detect the intensity of ambient light by using the ambient light sensor. When the ambient light sensor detects that the external light is too strong, the camera aperture is automatically adjusted to ensure that the photographing is not over exposed

In the concrete realization, according to the ambient light intensity that detects, automatic adjustment screen white field luminance for the light intensity of shooing is the optimum intensity, avoids the light filling light to lead to shooing overexposure excessively strong, ensures the photo quality of shooing best.

Step S02: and judging whether a screen light supplement mode is started or not according to preset ambient light intensity and the current ambient light intensity.

It should be noted that the preset ambient light intensity may be set according to a user requirement, or may be the ambient light intensity set in advance according to parameters of a television set accessory, and the preset ambient light intensity is used to determine whether the light supplement mode needs to be started.

It can be understood that the ambient light intensity detected at the moment of photographing is compared with the preset ambient light intensity through the preset ambient light intensity, and the light supplementing operation of white field switching is performed or photographing is directly performed according to the comparison result.

Step S03: and when the current ambient light intensity is less than the preset ambient light intensity, starting a screen light supplement mode, and executing the step of acquiring the current image acquired by the television camera.

It should be noted that the face camera shooting light supplementing system can set a shooting flash prompt, after a user sends a shooting instruction, the system judges that the screen needs to be switched to a white field for light supplementing according to the detected light intensity, a light supplementing option pops out before switching, and the user selects to switch to the white field after light supplementing, so that the user can make psychological preparation in advance, and the phenomenon that the user experience is reduced due to sudden white field switching is avoided.

In the specific implementation, the human face shooting light supplementing system can judge whether the ambient light intensity is higher than a threshold value T corresponding to the preset ambient light intensity, if the ambient light intensity is smaller than the threshold value, the system firstly switches the screen into a white field mode (or other colors), meanwhile, the brightness is adjusted to be the maximum, then the camera performs shooting, image data are transmitted to the system, after the shooting is completed, the system switches the screen back to a normal mode and reduces the brightness to the normal brightness, and finally, the shot image data are displayed on the screen. If the ambient light intensity is higher than the set threshold value T, the camera directly completes the photographing action, the screen does not trigger the light supplementing action, and the picture is directly displayed on the screen after the photographing is completed. If the light supplement count-down prompt is smaller than the threshold value, the system can enable a user to prepare by popping up the light supplement count-down prompt, after the prompt is finished, the screen is switched to a certain area to display the identification image, the rest part is completely switched to a white field (or other color scenes), the brightness is adjusted to be the maximum, then the camera collects the image information and transmits the image information to the system, and the system operates an identification algorithm to identify and executes corresponding actions according to the identification result. And if the ambient light intensity is higher than the set threshold value T, directly executing camera image information acquisition and transmission, and not switching the white field on the screen.

Further, before the step S10, the method further includes: acquiring geographical position information and current time information of a television; judging whether a screen light supplement mode is started or not according to the geographical position information and the current time information of the television; and when the geographical position information of the television meets the preset geographical position and the current time information meets the preset time, controlling the television to start a screen light supplement mode, and executing the step of acquiring the current image acquired by the television camera.

It should be noted that, if the ambient light sensor is not used in this embodiment, the step of acquiring the current image acquired by the camera of the television may be executed by acquiring the current position of the television and determining whether the current time is dark or daytime according to the current time information, so as to control the light supplement mode to be turned on.

In specific implementation, the human face camera light supplement system can judge whether the current television is dark or daytime according to the current time information by acquiring the position of the current television, so as to control to start the light supplement mode and execute the step of acquiring the current image acquired by the television camera. For example: the Beijing is dark at 17 pm in winter, and the light supplement is automatically turned on by photographing when the television detects that the Beijing is currently located and the time information is 17 pm in winter.

In the embodiment, the current ambient light intensity is obtained; judging whether a screen light supplement mode is started or not according to preset ambient light intensity and current ambient light intensity; and when the current ambient light intensity is less than the preset ambient light intensity, starting a screen light supplement mode, and executing the step of acquiring the current image acquired by the television camera. Carrying out face position identification on the current image to acquire a face display position of a face picture on a display screen; determining a preset light supplementing area according to the face display position; detecting whether the face picture reaches the optimal light state; and when the human face picture does not reach the optimal light state, adjusting display parameters corresponding to the preset light supplement area so as to enable the human face picture in subsequent images collected by the television camera to reach the optimal light state. According to the embodiment, the photographing and identifying instructions are initiated through automatic detection of the ambient light intensity and voice or remote control, the system judges the current ambient light intensity when receiving the instructions, if the ambient light intensity is lower than a threshold value (set to T), a light supplementing mechanism is triggered to supplement light, and if the ambient light intensity is higher than the threshold value (set to T), the photographing and identifying functions are completed under the current ambient light intensity. The color of the supplementary lighting can be set, and different photo style requirements of a photographer can be met in the aspect of photographing; in the aspect of discernment, object image information under the different colours is provided, the degree of accuracy of reinforcing discernment, this embodiment is because of the ambient light is darker for TV set camera among the prior art, perhaps the ambient light distribution is uneven, can cause the image effect of shooting very poor, especially face highlight and shadow contrast are obvious, user experience effect has been seriously influenced, this embodiment has realized can shooting the image according to environment intelligent analysis, supplement light according to the weak point adjustment, in order to improve the quality of making a video recording, and through the regional luminous of TV set, accurate people's face to before the TV set carries out the light filling, in order to reach accurate light filling people's face, the better picture of effect of making a video recording, thereby improve the TV set and to face effect and quality of making a video recording, promote user experience.

Referring to fig. 8, fig. 8 is a block diagram illustrating a first embodiment of a light supplement apparatus for human face photographing based on a television according to the present invention.

As shown in fig. 8, a light supplement device for face shooting based on a television set according to an embodiment of the present invention includes:

the image acquisition module 10 is used for acquiring a current image acquired by a television camera;

a position determining module 20, configured to perform face position identification on the current image to obtain a face display position of a face picture on a display screen;

the region determining module 30 is configured to determine a preset light compensation region according to the face display position;

the state detection module 40 is used for detecting whether the face picture reaches an optimal light state;

and the parameter adjusting module 50 is configured to adjust display parameters corresponding to the preset light compensation area when the face picture does not reach the optimal light state, so that the face picture in a subsequent image acquired by the television camera reaches the optimal light state.

Further, the region determining module 30 is further configured to obtain a screen size of the display screen, and determine a region scaling ratio according to the screen size; zooming the area corresponding to the face display position according to the area zooming ratio to determine the face light supplementing light emitting area; and taking the region except the human face light supplementing light emitting region in the preset light supplementing region as the auxiliary light supplementing region.

Further, the state detection module 40 is further configured to obtain facial light parameters of a face picture in the current image, where the facial light parameters include brightness, brightness uniformity, and/or saturation skin color; and detecting whether the face picture in the current image reaches the optimal light state or not according to the face light parameters.

Further, the parameter adjusting module 50 is further configured to adjust the display parameters of the face light compensation light emitting area and/or the display parameters of the auxiliary light compensation area when the face picture does not reach the optimal light state, so that the face picture in the subsequent image acquired by the television camera reaches the optimal light state.

Further, the parameter adjusting module 50 is further configured to obtain an initial screen brightness value of the face light supplement light emitting area and/or an initial screen brightness value of the auxiliary light supplement area when the face picture does not reach the optimal light state; and dynamically adjusting the initial screen brightness value of the face light supplementing light emitting area and/or the initial screen brightness value of the auxiliary light supplementing area according to a preset step value so as to enable the face pictures in subsequent images acquired by the television camera to reach the optimal brightness state.

Further, the parameter adjusting module 50 is further configured to perform skin color analysis on the face picture when the face picture does not reach the optimal light state, and obtain a skin color temperature deviation and an ambient light color temperature according to a skin color analysis result; and when the skin color temperature deviation is not in a preset color temperature deviation range, adjusting the color temperature parameter of the face supplementary lighting area and/or the color temperature parameter of the auxiliary supplementary lighting area according to the ambient light color temperature so as to enable the face picture in the subsequent image collected by the television camera to reach the optimal color temperature state.

Further, the television-based face camera light supplement device further comprises: the ambient light acquisition module is used for acquiring the current ambient light intensity; judging whether a screen light supplement mode is started or not according to preset ambient light intensity and the current ambient light intensity; and when the current ambient light intensity is less than the preset ambient light intensity, starting a screen light supplement mode, and executing the step of acquiring the current image acquired by the television camera.

Other embodiments or specific implementation manners of the face shooting light supplement device based on the television can refer to the above method embodiments, and details are not repeated here.

In addition, an embodiment of the present invention further provides a storage medium, where a television-based face shooting supplementary lighting program is stored in the storage medium, and when executed by a processor, the television-based face shooting supplementary lighting program implements the steps of the television-based face shooting supplementary lighting method described above.

It should be understood that the above is only an example, and the technical solution of the present invention is not limited in any way, and in a specific application, a person skilled in the art may set the technical solution as needed, and the present invention is not limited thereto.

It should be noted that the above-described work flows are only exemplary, and do not limit the scope of the present invention, and in practical applications, a person skilled in the art may select some or all of them to achieve the purpose of the solution of the embodiment according to actual needs, and the present invention is not limited herein.

In addition, the technical details that are not described in detail in this embodiment may be referred to a method for supplementing light for face shooting based on a television according to any embodiment of the present invention, and are not described herein again.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.

The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The use of the words first, second, third, etc. do not denote any order, but rather the words first, second, third, etc. are to be interpreted as names.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention or portions thereof that contribute to the prior art may be embodied in the form of a software product, where the computer software product is stored in a storage medium (e.g., a Read Only Memory (ROM)/Random Access Memory (RAM), a magnetic disk, an optical disk), and includes several instructions for enabling a terminal device (which may be a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present invention.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A light supplement method for face shooting based on a television is characterized by comprising the following steps:

acquiring a current image acquired by a television camera;

detecting whether the face picture reaches an optimal light state;

2. The television-based face camera light supplement method according to claim 1, wherein the preset light supplement area comprises a face light supplement light emitting area and an auxiliary light supplement area;

3. The light supplementing method for human face shooting based on a television set as claimed in claim 1, wherein the step of detecting whether the human face picture reaches the optimal light state includes:

4. The light supplementing method for human face photographing based on a television set according to claim 2, wherein when the human face picture does not reach the optimal light condition, the step of adjusting the display parameters corresponding to the preset light supplementing region so as to enable the human face picture in the subsequent images collected by the television camera to reach the optimal light condition comprises the steps of:

5. The method for supplementing light during human face photographing based on the television as claimed in claim 4, wherein the display parameters include screen brightness values, and the optimal light state includes an optimal brightness state;

6. The light supplementing method for human face shooting based on the television as claimed in claim 4, wherein the display parameters include color temperature parameters, and the optimal light state includes an optimal color temperature state;

7. The light supplementing method for human face photographing based on the television as claimed in any one of claims 1 to 6, wherein before the step of obtaining the current image collected by the television camera, the method further comprises:

acquiring the current ambient light intensity;

8. The utility model provides a people's face light filling equipment of making a video recording based on TV set which characterized in that, people's face light filling equipment of making a video recording based on TV set includes: the television-based face shooting supplementary lighting method comprises a memory, a processor and a television-based face shooting supplementary lighting program which is stored on the memory and can run on the processor, wherein when the television-based face shooting supplementary lighting program is executed by the processor, the television-based face shooting supplementary lighting method according to any one of claims 1 to 7 is realized.

9. A storage medium, wherein a television-based face camera fill-in program is stored on the storage medium, and when being executed by a processor, the television-based face camera fill-in program implements the television-based face camera fill-in method according to any one of claims 1 to 7.

10. The utility model provides a supplementary lighting device makes a video recording of people's face based on TV set which characterized in that, the supplementary lighting device makes a video recording of people's face based on TV set includes: