CN106331517A - Method and electronic device for controlling brightness of soft light lamp - Google Patents

Abstract

The present invention provides a soft light brightness control method and electronic equipment. The method includes: determining the detection value of a brightness control parameter, and the brightness control parameter is the currently photographed user in the image captured by the shooting module. Determine the target brightness corresponding to the detection value according to the corresponding relationship between the brightness control parameter and the brightness of the soft light; control the soft light to emit light at the target brightness. Adjusting the brightness of the soft light according to the proportion of the user in the image can reduce the stimulation of the soft light to the user's eyes.

Description

Method and electronic device for controlling brightness of soft light lamp

technical field

The invention relates to the communication field, in particular to a method for controlling the brightness of a soft light lamp and electronic equipment.

Background technique

Taking selfies with electronic devices is becoming more and more popular. In order to achieve better selfie effects and to take selfies at night, electronic devices are equipped with soft lights. When taking a selfie, since the distance between the electronic device and the user's eyes is small, the light from the soft light will strongly stimulate the human eye, and the closer you are to the soft light, the more intense the light from the soft light will be on the human eye. The stronger the stimulating effect on the human eye, the more harmful it is to the human eye. Therefore, there is a problem in the prior art that the light emitted by the soft light lamp can cause damage to human eyes. The above situation also exists in the scene where the rear camera of the electronic device is used for shooting.

Contents of the invention

Embodiments of the present invention provide a method for controlling the brightness of a soft light and an electronic device to solve the problem in the prior art that the light emitted by the soft light can cause damage to human eyes.

In the first aspect, an embodiment of the present invention provides a method for controlling the brightness of a soft light, including:

Determine the detection value of the brightness control parameter, the brightness control parameter is the proportion of the current shooting user in the image captured by the shooting module;

Determine the target brightness corresponding to the detected value according to the corresponding relationship between the brightness control parameter and the brightness of the soft light lamp. In the corresponding relationship, when the distance corresponding to the first brightness control parameter is smaller than the distance corresponding to the second brightness control parameter, the The brightness of the first soft light corresponding to the first brightness control parameter is not greater than the brightness of the second soft light corresponding to the second brightness control parameter, and in the correspondence relationship, the third soft light corresponding to the third brightness control parameter When the brightness of the lamp is less than the brightness of the fourth soft light corresponding to the fourth brightness control parameter, the distance corresponding to the third brightness control parameter is smaller than the distance corresponding to the fourth brightness control parameter;

and controlling the soft light to emit light at the target brightness.

In the second aspect, the embodiment of the present invention also provides an electronic device, including:

The first determination module is used to determine the detection value of the brightness control parameter, the brightness control parameter is the proportion of the current shooting user in the image captured by the shooting module;

The second determining module is configured to determine the target brightness corresponding to the detection value according to the correspondence between the brightness control parameter and the brightness of the soft light, and in the correspondence, the distance corresponding to the first brightness control parameter is smaller than the second brightness When controlling the distance corresponding to the parameter, the brightness of the first soft light corresponding to the first brightness control parameter is not greater than the brightness of the second soft light corresponding to the second brightness control parameter, and in the corresponding relationship, the third brightness When the brightness of the third soft light corresponding to the control parameter is smaller than the brightness of the fourth soft light corresponding to the fourth brightness control parameter, the distance corresponding to the third brightness control parameter is smaller than the distance corresponding to the fourth brightness control parameter;

A control module, configured to control the soft light to emit light at the target brightness.

In the embodiment of the present invention, the detection value of the brightness control parameter is determined, and the brightness control parameter is the proportion of the current shooting user in the image captured by the shooting module; according to the brightness control parameter and soft light The corresponding relationship between the brightness of the lamps determines the target brightness corresponding to the detection value. In the corresponding relationship, when the distance corresponding to the first brightness control parameter is smaller than the distance corresponding to the second brightness control parameter, the first brightness control parameter The brightness of the corresponding first soft light is not greater than the brightness of the second soft light corresponding to the second brightness control parameter, and in the correspondence relationship, the brightness of the third soft light corresponding to the third brightness control parameter is smaller than the fourth brightness When controlling the brightness of the fourth soft light corresponding to the parameter, the distance corresponding to the third brightness control parameter is smaller than the distance corresponding to the fourth brightness control parameter; and the soft light is controlled to emit light at the target brightness. In this way, when the user uses the soft light to take a selfie, the electronic device can adjust the brightness of the soft light according to the distance between the current shooting user and the electronic device or the proportion of the current shooting user in the image, so when the user is relatively close to the electronic device , it can reduce the stimulation of the light emitted by the soft light to the user's eyes.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments of the present invention. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained based on these drawings without any creative effort.

Fig. 1 is a flowchart of a soft light brightness control method provided by the first embodiment of the present invention;

Fig. 2 is a flow chart of another soft light brightness control method provided by the second embodiment of the present invention;

Fig. 3 is a flow chart of another soft light brightness control method provided by the third embodiment of the present invention;

Fig. 4 is a structural diagram of an electronic device provided by a fourth embodiment of the present invention;

Fig. 5 is a structural diagram of another electronic device provided by the fifth embodiment of the present invention.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

first embodiment

Step 101. Determine the detection value of a brightness control parameter, where the brightness control parameter is the proportion of the current shooting user in the image captured by the shooting module.

In step 101, the detection value of the brightness control parameter is determined, that is, the proportion of the currently captured user in the image is determined. First, the user turns on the camera, and the current shooting user appears in the image, and then the area occupied by the current shooting user in the image is obtained, that is, the target area. Finally, calculate the proportion of the target area in the image, namely:

The detection value of the determined brightness control parameter is specifically:

Obtain the image captured by the shooting module;

Performing person recognition on the image, and determining a target area where the person in the image is located;

Calculate the proportion of the target area in the image.

When obtaining the area occupied by the current shooting user in the image, there are two situations, one is that there is only one current shooting user, and the other is that there are multiple current shooting users.

In the above step 101, when there is only one current shooting user, the area occupied by the unique user in the image is determined as the detection value of the brightness control parameter.

However, regardless of whether the front camera is used to take a selfie or the rear camera is used to shoot, there may be multiple people in the captured image (that is, there are multiple current shooting users), and the scheme of the specific embodiment of the present invention is to weaken the The light emitted by the soft light stimulates the eyes of the user, and the light emitted by the soft light stimulates the eyes of the user closest to the electronic device the most. Therefore, in a specific embodiment of the present invention, when there are multiple current shooting users, The current shooting user closest to the electronic device shall prevail, namely:

The step of performing person recognition on the image and determining the target area where the person in the image is located is specifically:

performing person recognition on the image;

judging whether there are multiple characters in the image;

When there are multiple persons in the image, determine that the area of the person closest to the electronic device in the image is the target area, otherwise determine the area of the only person in the image as the target area .

Step 102: Determine the target brightness corresponding to the detection value according to the correspondence between the brightness control parameter and the brightness of the soft light. In the correspondence, the distance corresponding to the first brightness control parameter is smaller than the distance corresponding to the second brightness control parameter , the brightness of the first soft light corresponding to the first brightness control parameter is not greater than the brightness of the second soft light corresponding to the second brightness control parameter, and in the correspondence relationship, the brightness of the first soft light corresponding to the third brightness control parameter When the brightness of the third soft light is smaller than the brightness of the fourth soft light corresponding to the fourth brightness control parameter, the distance corresponding to the third brightness control parameter is smaller than the distance corresponding to the fourth brightness control parameter.

In step 102, the target brightness is determined according to the corresponding relationship between the brightness control parameters and the brightness of the soft light, and the purpose of this embodiment of the present invention is to reduce the stimulation of the light emitted by the soft light to the user's eyes, and the closer the distance is, the The greater the stimulus, therefore, the corresponding relationship between the brightness control parameters and the brightness of the soft light in the specific embodiment of the present invention has the following two characteristics:

1. The brightness of the soft light corresponding to the brightness control parameter corresponding to a smaller distance is not greater than the brightness of the soft light corresponding to the brightness control parameter corresponding to a larger distance; The situation where the distance becomes smaller and larger.

2. At least the brightness of the soft light corresponding to the brightness control parameter corresponding to a smaller distance is smaller than the brightness of the soft light corresponding to the brightness control parameter corresponding to a larger distance. The situation where the distance becomes smaller and smaller.

The corresponding relationship that satisfies the above two characteristics can be in the following two ways:

1. Continuous correspondence: in the correspondence, the larger the ratio, the smaller the brightness of the corresponding soft light.

That is, the brightness of the soft light is a continuously decreasing function of the ratio, and the brightness of the soft light becomes smaller as the ratio increases, showing a continuous change.

2. Discrete correspondence: the ratio is divided into multiple continuous intervals within the value range, each interval corresponds to the brightness of a soft light, and among adjacent intervals, the interval with a larger ratio corresponds to the brightness of the soft light The brightness of the soft light corresponding to the range with a smaller ratio.

In other words, the brightness of the soft light is a step function of the ratio, which is a discrete correspondence.

When the user is taking a selfie, there will be a minimum distance at which the soft light can be turned on to the maximum brightness without irritating the human eyes. In the first form of correspondence above, when the distance between the electronic device and the current shooting user When the distance is smaller than the minimum distance, the brightness of the soft light is lower than the maximum brightness, and becomes smaller and smaller as the distance becomes smaller. In the above-mentioned second form of corresponding relationship, when the distance between the electronic device and the current shooting user is less than the minimum distance, the brightness of the soft light is less than the maximum brightness, but the brightness change of the soft light is discrete, As the distance becomes smaller, the change trend of the brightness of the soft light also becomes smaller.

When the distance between the electronic device and the current shooting user is greater than or equal to the minimum distance, in the specific embodiment of the present invention, in order to ensure the effect of the soft light, the soft light can be set to the maximum brightness.

In a specific embodiment of the present invention, it is necessary to use brightness control parameters related to the distance between the electronic device and the current shooting user to determine the target brightness, and the brightness control parameters can be as follows and the distance between the electronic device and the current shooting user Distance-related parameters, such as:

The distance itself between the electronic device and the current user; and

In the captured image, the proportion of the currently captured user in the image.

When the electronic device is closer to the person, the image of the person occupies a larger area in the entire image, so the proportion of the current shooting user in the image captured by the shooting module can be used to describe the The distance between the electronic device and the current capture user.

The following two forms of representation of the combined correspondence relationship are respectively described as follows.

When the corresponding relationship is a continuous corresponding relationship, and the brightness control parameter is the proportion of the current shooting user in the image captured by the shooting module, in specific embodiments of the present invention, the following function can be used to Record the above consecutive correspondences:

V＝t*V _max *(1-Sren/S)

Among them, t is the adjustment parameter, Vmax is the maximum brightness of the soft light, and Sren/S is the proportion of the current shooting user in the image. The ratio can be the ratio of the area occupied by the current shooting user in the image to the total area of the image, or the ratio of the pixel value occupied by the current shooting user in the image to the pixel value occupied by the image, V is the soft light Current brightness.

Therefore, Sren can be the area occupied by the current shooting user in the image, or the pixel value occupied by the current shooting user in the image; S can be the area of the entire image, or the pixels occupied by the entire image value.

In electronic equipment, the adjustment parameter t can be adjusted. If you want to make the brightness of the soft light change faster, you can adjust the parameter t larger. If you want the brightness of the soft light to change slowly, you can Adjust the adjustment parameter t to a smaller value, and the user can set the adjustment parameter t to an appropriate value according to their own needs. After the adjustment parameter t is set to a value that the user thinks is appropriate, the adjustment parameter t will not change until the next adjustment, and the value set by the user before has been maintained. Vmax is the maximum brightness of the soft light, and the maximum brightness of the soft light is fixed. Sren/S is the proportion of the current shooting user in the image. This ratio has a corresponding relationship with the distance from the current shooting user to the electronic device. The closer the distance between the current shooting user and the electronic device, the larger the ratio. The farther the distance between the current shooting user and the electronic device is, the smaller this ratio is.

At this time, the adjustment parameter t and the maximum brightness Vmax of the soft light remain unchanged after setting, so the current brightness V of the soft light is inversely proportional to the proportion of the current shooting user in the image, the larger the ratio , indicating that the distance between the current shooting user and the electronic device is closer, so the brightness of the soft light should be adjusted smaller, and the smaller the ratio, it means that the distance between the current shooting user and the electronic device is farther. bigger ones.

It should be understood that the above-mentioned relationship between V and Sren/S is a functional relationship, and the specific embodiment of the present invention does not limit the specific functional relationship between V and Sren/S, as long as V can vary with Sren/S increase and decrease.

It should be noted that when the brightness of the soft light is adjusted in the above way, as the proportion of the current shooting user in the image changes, the brightness of the corresponding soft light will also change in real time, because the brightness of the soft light is determined by It is controlled by voltage, and different brightness will require different voltages. At this time, it is required that the circuit in the electronic device can control the voltage change in real time to support the real-time change in the brightness of the soft light. This situation is also relatively complicated.

When the corresponding relationship is a discrete corresponding relationship, and the brightness control parameter is the proportion of the current shooting user in the image captured by the shooting module, in specific embodiments of the present invention, the following function can be used to Record the above discrete correspondences:

V＝0.1*Vmax 0.9≤ratio<1.0

V＝0.2*Vmax 0.7≤ratio<0.9

V＝0.3*Vmax 0.5≤ratio<0.7

V＝0.6*Vmax 0.2≤ratio<0.5

V=1.0*Vmax ratio<0.2

In this embodiment, the proportion of the currently shooting user in the image is divided into 5 intervals, and each interval is continuous. The brightness of the soft light corresponding to the interval 0.9-1.0 is 0.1*Vmax, the brightness of the soft light corresponding to the interval 0.7-0.9 is 0.2*Vmax, the brightness of the soft light corresponding to the interval 0.5-0.7 is 0.3*Vmax, and the interval 0.2-0.5 corresponds to The brightness of the soft light is 0.6*Vmax, and the brightness of the soft light corresponding to the interval with a ratio less than 0.2 is 1.0*Vmax. It can be seen that as the proportion of current shooting users in the image increases, that is, with the As the distance between the current shooting user and the electronic device is getting closer, the brightness of the soft light is getting darker and darker. In this way, when the user is closer to the electronic device, the brightness of the soft light will also be darker, which can reduce the softness. The light emitted by the lamp is irritating to the user's eyes.

In this way, only one corresponding soft light brightness needs to be set in the corresponding scale range. In this embodiment, the proportion of the currently shooting user in the image is divided into 5 intervals, correspondingly, there are 5 soft light brightnesses in total, so only 5 corresponding voltages need to be set. This method of adjusting the brightness of the soft light is simpler than the method of adjusting the brightness of the soft light using continuous correspondence.

Divide the proportion of the current shooting user in the image into different intervals, and each interval corresponds to a soft light brightness. When the proportion of the user in the image changes within a certain interval, the corresponding The brightness of the soft light will not change, and it will always maintain the brightness corresponding to that range. In the implementation process of this method, the brightness of the soft light does not need to change frequently with the change of the ratio, which avoids excessive calculation process.

It should be understood that the above-mentioned relationship between V and Sren/S is a functional relationship, and the specific embodiment of the present invention does not limit the specific functional relationship between V and Sren/S, that is, does not limit the partition of Sren/S The number does not limit the rate of change of V corresponding to adjacent intervals, as long as V can be reduced with the increase of Sren/S.

When the corresponding relationship is a continuous corresponding relationship, and the brightness control parameter is the distance between the electronic device detected by the distance sensor and the current shooting user, in specific embodiments of the present invention, the following function can be used to record the above continuous corresponding relationship:

V=t*Vmax*l/L

Among them, t is an adjustment parameter, Vmax is the maximum brightness of the soft light, l is the distance between the current shooting user and the electronic device detected by the distance sensor, L is the user's arm length, and V is the current brightness of the soft light.

In electronic equipment, the adjustment parameter t can be adjusted. If you want to make the brightness of the soft light change faster, you can adjust the parameter t larger. If you want the brightness of the soft light to change slowly, you can Adjust the adjustment parameter t to a smaller value, and the user can set the adjustment parameter t to an appropriate value according to their own needs.

After the adjustment parameter t is set to a value that the user thinks is appropriate, the adjustment parameter t will not change until the next adjustment, and the value set by the user before has been maintained. Vmax is the maximum brightness of the soft light, and the maximum brightness of the soft light is fixed. L is the length of the user's arm. Generally speaking, when the user takes a selfie, the maximum distance between the user and the electronic device is the user's arm length. Here, L can also be set. After setting L to a value, before the next setting, L will always maintain the value set by the user before.

At this time, the adjustment parameter t, the maximum brightness Vmax and L of the soft light remain unchanged after setting, so the current brightness V of the soft light is proportional to the distance l between the current shooting user and the electronic device, The smaller the distance between the current shooting user and the electronic device, the darker the brightness of the soft light will be adjusted, and the larger the distance between the current shooting user and the electronic device, the brighter the brightness of the soft light will be adjusted.

It should be understood that the above-mentioned relationship between l and V is a functional relationship, and the specific embodiment of the present invention does not limit the specific functional relationship between l and V, as long as V can increase with the increase of l.

It should be noted that when the brightness of the soft light is adjusted in the above manner, as the distance between the current shooting user and the electronic device changes, the brightness of the corresponding soft light will also change in real time, because the brightness of the soft light is determined by It is controlled by voltage, and different brightness will require different voltages. At this time, it is required that the circuit in the electronic device can control the voltage change in real time to support the real-time change in the brightness of the soft light. This situation is relatively complicated.

When the corresponding relationship is a discrete corresponding relationship, and the brightness control parameter is the distance between the electronic device detected by the distance sensor and the current shooting user, in specific embodiments of the present invention, the following function may be used to record the above discrete corresponding relationship:

V＝1.0*Vmax 0.9L≤l<1.0L

V＝0.6*Vmax 0.7L≤l<0.9L

V＝0.3*Vmax 0.5L≤l<0.7L

V＝0.2*Vmax 0.2L≤l<0.5L

V＝0.1*Vmax l<0.2L

In this embodiment, the distance between the electronic device detected by the distance sensor and the current shooting user is divided into 5 intervals, and each interval is continuous. The brightness of the soft light corresponding to the interval 0.9L-1.0L is 1.0*Vmax, the brightness of the soft light corresponding to the interval 0.7L-0.9L is 0.6*Vmax, and the brightness of the soft light corresponding to the interval 0.5L-0.7L is 0.3*Vmax , the brightness of the soft light corresponding to the interval 0.2L-0.5L is 0.2*Vmax, and the brightness of the soft light corresponding to the interval smaller than 0.2L is 0.1*Vmax. It can be seen that as the distance between the current shooting user and the electronic device The brightness of the soft light is getting smaller and smaller, so when the user is closer to the electronic device, the brightness of the soft light will be darker, which can reduce the light from the soft light to the user's eyes. Stimulate.

In this way, only one corresponding brightness of the soft light needs to be set in the corresponding distance interval. In this embodiment, the current distance between the shooting user and the electronic device is divided into 5 intervals, correspondingly, there are 5 soft light brightness levels, so only 5 corresponding voltages need to be set. This method of adjusting the brightness of the soft light is simpler than the method of adjusting the brightness of the soft light using continuous correspondence.

Divide the distance between the current shooting user and the electronic device into different intervals, and each interval corresponds to a soft light brightness. When the distance between the user and the electronic device changes within a certain interval, the corresponding The brightness of the soft light will not change, and it will always maintain the brightness corresponding to that range. In this way, the brightness of the soft light does not need to change frequently as the distance changes during the implementation process, which avoids excessive calculation processes.

It should be understood that the above-mentioned relationship between l and V is indicative of a functional relationship. The specific embodiment of the present invention does not limit the specific functional relationship between l and V, that is, the number of partitions of l is not limited, and the relative The rate of change of V corresponding to the adjacent interval, as long as V can grow with the growth of l.

Step 103, controlling the soft light to emit light at the target brightness.

In step 103, after determining the distance between the current shooting user and the electronic device, or determining the proportion of the current shooting user in the image, the soft light can be determined according to the corresponding relationship with the brightness of the soft light The current brightness of the light, control the soft light to emit light at the determined brightness, and the user can shoot at this time.

It should be noted that whether the front camera is used to take selfies or the rear camera is used to take pictures, as the distance between the current shooting user and the electronic device becomes smaller and smaller, the brightness of the soft light will also become darker. . When the shooting module is a rear camera, since the user is far away from the rear camera at this time, the light emitted by the soft light will basically not cause irritation to the user's eyes. However, when using the front camera to take a selfie, the distance between the electronic device and the current shooting user is relatively short, and the light emitted by the soft light is likely to cause irritation to the user's eyes, so the method for controlling the brightness of the soft light in the embodiment of the present invention is better applied For selfies with the front camera.

In the above embodiments, two parameters, the actual distance and the proportion of the user in the image, are used to represent the distance between the electronic device and the current shooting user, but other parameters can also be used to describe the distance, and the brief description is as follows:

For example, a light emitter and a light receiver are installed on an electronic device. The light emitted by the light emitter will be reflected after hitting the face, and the reflected light will be received by the light receiver. When the distance between the electronic device and the current shooting user is greater, , the farther the light travels in the air, the greater the loss. On the contrary, the loss suffered is smaller.

Therefore, the optical power received by the optical receiver can be used to describe the distance between the electronic device and the current shooting user. The greater the optical power, the closer the distance between the electronic device and the current shooting user, and the smaller the brightness of the corresponding soft light .

In the embodiment of the present invention, the above-mentioned electronic device can be any electronic device equipped with a camera module and a soft light, such as a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer), a personal digital assistant (personal digital assistant) digital assistant (PDA for short), mobile Internet device (Mobile Internet Device, MID) or wearable device (Wearable Device), etc.

The brightness control method of the soft light in the embodiment of the present invention determines the detection value of the brightness control parameter, and the brightness control parameter is the proportion of the current shooting user in the image captured by the shooting module; according to The corresponding relationship between the brightness control parameter and the brightness of the soft light determines the target brightness corresponding to the detection value. In the corresponding relationship, when the distance corresponding to the first brightness control parameter is smaller than the distance corresponding to the second brightness control parameter, the The brightness of the first soft light corresponding to the first brightness control parameter is not greater than the brightness of the second soft light corresponding to the second brightness control parameter, and in the corresponding relationship, the third soft light corresponding to the third brightness control parameter When the brightness is less than the brightness of the fourth soft light corresponding to the fourth brightness control parameter, the distance corresponding to the third brightness control parameter is smaller than the distance corresponding to the fourth brightness control parameter; glow. Through the above steps, the electronic device can adjust the brightness of the soft light according to the distance between the current shooting user and the electronic device or the proportion of the current shooting user in the image. Therefore, when the user is relatively close to the electronic device, the stimulation of the light emitted by the soft light to the user's eyes can be reduced.

second embodiment

Referring to Fig. 2, Fig. 2 is a flow chart of another soft light brightness control method provided by an embodiment of the present invention, as shown in Fig. 2, including the following steps:

Step 201, identifying a target face.

In step 201, the face is recognized. When there is only one face in the image, the face is recognized. When there are multiple faces in the image, the face with the largest proportion in the image is identified. face recognition.

Step 202, acquiring the proportion of the target face in the image.

In step 202, obtaining the proportion of the target face in the image can be the ratio of the area of the target face in the image to the area of the entire image, or the ratio of the area occupied by the target face in the image. The ratio of the pixel value to the pixel value occupied by the entire image.

Step 203, adjusting the brightness of the soft light according to the acquired proportion of the target face in the image.

In step 203, the brightness of the soft light is adjusted according to the acquired proportion of the target face in the image, and there are two ways. The first method is to determine the brightness of the soft light by using the continuous corresponding relationship. This method has been explained in the first embodiment and will not be repeated here. The second is to use discrete correspondence to determine the brightness of the soft light, and divide the proportion of the target face in the image into several continuous intervals, each interval corresponds to a soft light brightness, corresponding to a larger proportion The brightness of the soft light corresponding to the interval of is smaller than the brightness of the soft light corresponding to the interval corresponding to a smaller ratio. Determine which range the proportion of the target face in the image falls in, and then adjust the brightness of the soft light to the corresponding brightness. The second manner has also been explained in the first embodiment, and will not be repeated here.

Step 204, adjusting the brightness of the soft light to the brightness determined according to the proportion of the target face in the image.

In step 204, the brightness of the soft light is adjusted to the brightness determined according to the proportion of the target face in the image, and the user can start shooting. At this time, when the user is relatively close to the electronic device, the soft light can be reduced. The light emitted by the lamp is irritating to the user's eyes.

This embodiment is an illustrative example of the present invention. Through the above steps, the electronic device can adjust the brightness of the soft light according to the proportion of the currently captured user in the image. Therefore, when the user is relatively close to the electronic device, the stimulation of the light emitted by the soft light to the user's eyes can be reduced.

third embodiment

Referring to Fig. 3, Fig. 3 is a flow chart of another soft light brightness control method provided by an embodiment of the present invention, as shown in Fig. 3, including the following steps:

Step 301. Obtain the distance between the target face and the electronic device.

In step 301, when there is only one human face in the image, the distance between the human face and the electronic device is obtained; when there are multiple human faces in the image, the distance between the closest human face and the electronic device is obtained. Distance between electronic devices.

Step 302, using the acquired distance to determine the brightness of the soft light.

In step 302, the brightness of the soft light can be determined in two ways. The first method is to determine the brightness of the soft light by using the continuous corresponding relationship. This method has been explained in the first embodiment and will not be repeated here. The second is to use discrete correspondence to determine the brightness of the soft light, and divide the distance between the current shooting user and the electronic device into several continuous intervals, each interval corresponds to a brightness of the soft light, corresponding to a smaller The brightness of the soft light corresponding to the interval of the distance is smaller than the brightness of the soft light corresponding to the interval corresponding to a larger distance. It is judged which interval the acquired distance between the current shooting user and the electronic device falls in, and then the brightness of the soft light is adjusted to the corresponding brightness. The second manner has also been explained in the first embodiment, and will not be repeated here.

Step 303, adjusting the brightness of the soft light to the brightness determined according to the acquired distance.

In step 303, the brightness of the soft light is adjusted to the brightness determined according to the obtained distance, and the user can start shooting. At this time, when the user is relatively close to the electronic device, the light emitted by the soft light can reduce the impact on the user. eye irritation.

This embodiment is an illustrative example of the present invention. Through the above steps, the electronic device can adjust the brightness of the soft light according to the distance between the current shooting user and the electronic device. Therefore, when the user is relatively close to the electronic device, the stimulation of the light emitted by the soft light to the user's eyes can be reduced.

Fourth embodiment

Referring to FIG. 4, FIG. 4 is a structural diagram of an electronic device provided by the implementation of the present invention. As shown in FIG. 4, the electronic device 400 includes a first determination module 401, a second determination module 402, and a control module 403, wherein:

The first determining module 401 is configured to determine the detection value of a brightness control parameter, where the brightness control parameter is the proportion of the current shooting user in the image captured by the shooting module;

The second determination module 402 is configured to determine the target brightness corresponding to the detection value according to the correspondence between the brightness control parameter and the brightness of the soft light, in the correspondence, the distance corresponding to the first brightness control parameter is smaller than the second brightness When controlling the distance corresponding to the parameter, the brightness of the first soft light corresponding to the first brightness control parameter is not greater than the brightness of the second soft light corresponding to the second brightness control parameter, and in the corresponding relationship, the third brightness When the brightness of the third soft light corresponding to the control parameter is smaller than the brightness of the fourth soft light corresponding to the fourth brightness control parameter, the distance corresponding to the third brightness control parameter is smaller than the distance corresponding to the fourth brightness control parameter;

The control module 403 is configured to control the soft light to emit light at the target brightness.

Optionally, in the corresponding relationship, the larger the ratio, the smaller the brightness of the corresponding soft light.

Optionally, the ratio is divided into multiple continuous intervals within the value range, each interval corresponds to the brightness of a soft light, and among adjacent intervals, the brightness of the soft light corresponding to the interval with a larger ratio is smaller than the ratio The smaller range corresponds to the brightness of the soft light.

Optionally, the camera module is a front camera of the electronic device.

Optionally, the first determining module 401 includes:

An acquisition module 4011, configured to acquire images captured by the photographing module;

The third determining module 4012 is configured to perform person recognition on the image, and determine the target area where the person in the image is located;

Calculation module 4013, configured to calculate the proportion of the target area in the image.

Optionally, the third determining module 4012 includes:

A recognition module 40121, configured to perform character recognition on the image;

Judging module 40122, configured to judge whether there are multiple characters in the image;

The fourth determination module 40123 is configured to determine that the area of the person closest to the electronic device in the image is the target area when there are multiple persons in the image, otherwise determine that the only person in the image is The area in is the target area.

The detection value electronic device 400 can implement each process implemented by the electronic device in each method embodiment, and to avoid repetition, details are not repeated here. And the electronic device 400 can adjust the brightness of the soft light according to the distance between the current shooting user and the electronic device or the proportion of the current shooting user in the image. Therefore, when the user is relatively close to the electronic device, the stimulation of the light emitted by the soft light to the user's eyes can be reduced.

fifth embodiment

Referring to FIG. 5, FIG. 5 is a structural diagram of an electronic device provided by the implementation of the present invention. As shown in FIG. Various components in the electronic device 500 are coupled together through the bus system 505 . It can be understood that the bus system 505 is used to realize connection and communication between these components. In addition to the data bus, the bus system 505 also includes a power bus, a control bus and a status signal bus. However, for clarity of illustration, the various buses are labeled as bus system 505 in FIG. 5 .

Wherein, the user interface 503 may include a display, a keyboard or a pointing device (for example, a mouse, a track ball (track ball), a touch panel or a touch screen, and the like.

It can be understood that the memory 502 in the embodiment of the present invention may be a volatile memory or a nonvolatile memory, or may include both volatile and nonvolatile memories. Wherein, the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM, PROM), an erasable programmable read-only memory (Erasable PROM, EPROM), an electronically programmable Erase Programmable Read-Only Memory (Electrically EPROM, EEPROM) or Flash. The volatile memory can be Random Access Memory (RAM), which acts as an external cache. By way of illustration and not limitation, many forms of RAM are available such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (Synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (Double Data RateSDRAM, DDRSDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous connection dynamic random access memory (Synchlink DRAM, SLDRAM) and Direct memory bus random access memory (DirectRambus RAM, DRRAM). Memory 502 of the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

In some implementations, the memory 502 stores the following elements, executable modules or data structures, or their subsets, or their extended sets: an operating system 5021 and an application program 5022 .

Among them, the operating system 5021 includes various system programs, such as framework layer, core library layer, driver layer, etc., for realizing various basic services and processing tasks based on hardware. The application program 5022 includes various application programs, such as a media player (Media Player), a browser (Browser), etc., and is used to implement various application services. The program for realizing the method of the embodiment of the present invention may be included in the application program 5022 .

In the embodiment of the present invention, by calling the program or instruction stored in the memory 502, specifically, the program or instruction stored in the application program 5022, the processor 501 is used to:

Determine the detection value of the brightness control parameter, the brightness control parameter is the proportion of the current shooting user in the image captured by the shooting module;

Determine the target brightness corresponding to the detected value according to the corresponding relationship between the brightness control parameter and the brightness of the soft light lamp. In the corresponding relationship, when the distance corresponding to the first brightness control parameter is smaller than the distance corresponding to the second brightness control parameter, the The brightness of the first soft light corresponding to the first brightness control parameter is not greater than the brightness of the second soft light corresponding to the second brightness control parameter, and in the correspondence relationship, the third soft light corresponding to the third brightness control parameter When the brightness of the lamp is lower than the brightness of the fourth soft light corresponding to the fourth brightness control parameter, the distance corresponding to the third brightness control parameter is smaller than the distance corresponding to the fourth brightness control parameter;

and controlling the soft light to emit light at the target brightness.

The methods disclosed in the foregoing embodiments of the present invention may be applied to the processor 501 or implemented by the processor 501 . The processor 501 may be an integrated circuit chip and has signal processing capability. In the implementation process, each step of the above method can be completed by an integrated logic circuit of hardware in the processor 501 or instructions in the form of software. The above-mentioned processor 501 may be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other available Program logic devices, discrete gate or transistor logic devices, discrete hardware components. Various methods, steps and logic block diagrams disclosed in the embodiments of the present invention may be implemented or executed. A general-purpose processor may be a microprocessor, or the processor may be any conventional processor, and the like. The steps of the methods disclosed in the embodiments of the present invention may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, register. The storage medium is located in the memory 502, and the processor 501 reads the information in the memory 502, and completes the steps of the above method in combination with its hardware.

It should be understood that the embodiments described herein may be implemented by hardware, software, firmware, middleware, microcode or a combination thereof. For hardware implementation, the processing unit can be implemented in one or more application specific integrated circuits (Application Specific Integrated Circuits, ASIC), digital signal processor (Digital Signal Processing, DSP), digital signal processing device (DSP Device, DSPD), programmable logic Device (Programmable LogicDevice, PLD), Field-Programmable Gate Array (Field-Programmable Gate Array, FPGA), general-purpose processor, controller, microcontroller, microprocessor, other electronic units for performing the functions described in this application or a combination thereof.

For a software implementation, the techniques described herein can be implemented through modules (eg, procedures, functions, and so on) that perform the functions described herein. Software codes can be stored in memory and executed by a processor. Memory can be implemented within the processor or external to the processor.

Optionally, the processor 501 executes the correspondence relationship, the larger the ratio, the smaller the brightness of the corresponding soft light.

Optionally, the processor 501 executes that the ratio is divided into multiple continuous intervals within the value range, each interval corresponds to the brightness of a soft light, and among adjacent intervals, the interval with a larger ratio corresponds to the soft light The brightness of the light is smaller than the brightness of the soft light corresponding to the interval with a smaller ratio.

Optionally, the processor 501 executes the camera module as a front camera of the electronic device.

Optionally, the execution by the processor 501 of determining the detection value of the brightness control parameter is specifically:

Obtain the image captured by the shooting module;

Performing person recognition on the image, and determining a target area where the person in the image is located;

Calculate the proportion of the target area in the image.

Optionally, the processor 501 executes the performing the character recognition on the image, and determining the target area where the character in the image is located is specifically:

performing person recognition on the image;

judging whether there are multiple characters in the image;

When there are multiple persons in the image, determine that the area of the person closest to the electronic device in the image is the target area, otherwise determine the area of the only person in the image as the target area .

The detected value electronic device 500 can implement various processes implemented by the electronic device in the foregoing embodiments, and to avoid repetition, details are not described here. And the electronic device 500 can adjust the brightness of the soft light according to the distance between the current shooting user and the electronic device or the proportion of the current shooting user in the image. Therefore, when the user is relatively close to the electronic device, the stimulation of the light emitted by the soft light to the user's eyes can be reduced.

Those skilled in the art can appreciate that the units and algorithm steps of the examples described in conjunction with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed by hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may use different methods to implement the described functions for each specific application, but such implementation should not be regarded as exceeding the scope of the present invention.

Those skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the above-described system, device and unit can refer to the corresponding process in the foregoing method embodiment, which will not be repeated here.

In the embodiments provided in this application, it should be understood that the disclosed devices and methods may be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented. In another point, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment of the present invention.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.

If the functions described above are realized in the form of software function units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the essence of the technical solution of the present invention or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in various embodiments of the present invention. The aforementioned storage medium includes: various media capable of storing program codes such as U disk, mobile hard disk, ROM, RAM, magnetic disk or optical disk.

The above is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Anyone skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present invention. Should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims (10)

1. A soft light brightness control method for an electronic device with a shooting module and a soft light, characterized in that the soft light brightness control method comprises: Determine the detection value of the brightness control parameter, the brightness control parameter is the proportion of the current shooting user in the image captured by the shooting module; Determine the target brightness corresponding to the detected value according to the corresponding relationship between the brightness control parameter and the brightness of the soft light lamp. In the corresponding relationship, when the distance corresponding to the first brightness control parameter is smaller than the distance corresponding to the second brightness control parameter, the The brightness of the first soft light corresponding to the first brightness control parameter is not greater than the brightness of the second soft light corresponding to the second brightness control parameter, and in the correspondence relationship, the third soft light corresponding to the third brightness control parameter When the brightness of the lamp is less than the brightness of the fourth soft light corresponding to the fourth brightness control parameter, the distance corresponding to the third brightness control parameter is smaller than the distance corresponding to the fourth brightness control parameter; and controlling the soft light to emit light at the target brightness. 2 . The method for controlling the brightness of the soft light according to claim 1 , wherein, in the corresponding relationship, the larger the ratio, the smaller the brightness of the corresponding soft light. 3. The soft light brightness control method according to claim 1, wherein the ratio is divided into a plurality of continuous intervals within the value range, each interval corresponds to a soft light brightness, and adjacent Among the intervals, the brightness of the soft light corresponding to the interval with a larger ratio is smaller than the brightness of the soft light corresponding to the interval with a smaller ratio. 4. The method for controlling the brightness of a soft light according to claim 1, 2 or 3, wherein the detection value of the determined brightness control parameter is specifically: Obtain the image captured by the shooting module; Performing person recognition on the image, and determining a target area where the person in the image is located; Calculate the proportion of the target area in the image. 5. The method for controlling the brightness of a soft light lamp according to claim 4, wherein the identifying the person in the image and determining the target area where the person in the image is located is specifically: performing person recognition on the image; judging whether there are multiple characters in the image; When there are multiple persons in the image, determine that the area of the person closest to the electronic device in the image is the target area, otherwise determine the area of the only person in the image as the target area . 6. An electronic device, characterized in that it comprises: The first determination module is used to determine the detection value of the brightness control parameter, the brightness control parameter is the proportion of the current shooting user in the image captured by the shooting module; The second determining module is configured to determine the target brightness corresponding to the detection value according to the correspondence between the brightness control parameter and the brightness of the soft light, and in the correspondence, the distance corresponding to the first brightness control parameter is smaller than the second brightness When controlling the distance corresponding to the parameter, the brightness of the first soft light corresponding to the first brightness control parameter is not greater than the brightness of the second soft light corresponding to the second brightness control parameter, and in the corresponding relationship, the third brightness When the brightness of the third soft light corresponding to the control parameter is smaller than the brightness of the fourth soft light corresponding to the fourth brightness control parameter, the distance corresponding to the third brightness control parameter is smaller than the distance corresponding to the fourth brightness control parameter; A control module, configured to control the soft light to emit light at the target brightness. 7 . The electronic device according to claim 6 , wherein, in the corresponding relationship, the larger the ratio, the smaller the brightness of the corresponding soft light. 8. The electronic device according to claim 6, wherein the ratio is divided into a plurality of continuous intervals within the value range, each interval corresponds to the brightness of a soft light, and in adjacent intervals, the ratio The brightness of the soft light corresponding to a larger interval is smaller than the brightness of the soft light corresponding to a smaller interval. 9. The electronic device according to claim 6, 7, or 8, wherein the first determining module comprises: An acquisition module, configured to acquire images captured by the photographing module; The third determining module is configured to perform person recognition on the image, and determine the target area where the person in the image is located; A calculation module, configured to calculate the proportion of the target area in the image. 10. The electronic device according to claim 9, wherein the third determining module comprises: A recognition module, configured to perform character recognition on the image; A judging module, configured to judge whether there are multiple characters in the image; A fourth determining module, configured to determine that the area of the person closest to the electronic device in the image is the target area when there are multiple persons in the image, otherwise determine that the only person is in the image The area of is the target area.