CN103220421B - Method and device for using mobile terminal to carry out self photographing - Google Patents

Abstract

The present invention discloses a method and device for taking a selfie with a mobile terminal. The method includes: step S1, opening a front camera in a mobile terminal; Measure the light intensity of the current environment; step S3, adjust the screen brightness of the mobile terminal according to the light intensity of the environment; step S4, use the light emitted by the screen of the mobile terminal as a light source for Selfie, use the front camera selfie. Implementing the present invention, when the user turns on the front camera of a mobile device such as a mobile phone or a tablet computer to take a selfie in a low-light environment, the light sensor can automatically adjust the brightness of the backlight of the screen to provide more light sources for the face. At the same time, you can choose your favorite background light source according to the user's wishes, thereby improving the photo effect to a certain extent and enhancing the user experience.

Description

Method and device for self-portrait using mobile terminal

technical field

The invention relates to the field of photographing, in particular to a method and device for self-portraiting by using a mobile terminal.

Background technique

In the prior art, users usually take selfies through the front cameras of mobile terminals such as mobile phones and tablet computers. When using a mobile terminal such as a mobile phone or a tablet computer to take a selfie, it usually cannot achieve the same shooting effect as shooting other scenes. If the outside light is low, the picture quality of the selfie will often be poor or even completely dark. At the same time, due to the poor pixel and imaging effect of the front camera, even if a clearly identifiable photo is successfully taken, the user often needs to modify it after shooting to improve the visual effect, which increases the burden on the user. A way to improve your shots when you're done.

Contents of the invention

Aiming at the defects in the prior art that the pixels and imaging effects of the front camera of mobile terminals such as mobile phones and tablet computers are poor, and they also do not have a front flash, and the Selfie effect of the user is poor in a dark environment, the present invention proposes A method and device for self-portraiting using a mobile terminal are provided for a mobile terminal.

The technical solution adopted by the present invention to solve the problems of the prior art is to construct a method for taking selfies using a mobile terminal, the method comprising:

Step S1, open the front camera in a mobile terminal;

Step S2: Sensing the light intensity of the current environment through the light sensor of the mobile terminal, judging whether the light intensity of the environment is lower than a preset value, and if the current light intensity of the environment is lower than the preset value, proceed to step S3;

Step S3, increasing the brightness of the screen, and further increasing the brightness of the screen when the light intensity of the environment is further reduced; by adjusting the display content of the mobile terminal, thereby adjusting the luminous color of the screen;

Step S4, using the light emitted by the screen of the mobile terminal as a light source for taking a selfie, and using the front camera to take a selfie.

The method also includes the steps of:

Step S5, after using the mobile terminal to take the selfie, turn off the front camera, and restore the screen brightness value and the luminous color of the screen before adjustment.

A selfie device using a mobile terminal, comprising:

Front camera for user selfies;

The control module is used to open the front camera in a mobile terminal;

A light sensor for sensing the light intensity of the current environment;

A judging module, configured to judge whether the light intensity of the environment is lower than a preset value;

A processing module, configured to adjust the screen brightness of the mobile terminal according to the light intensity of the environment, and the device uses the light emitted by the screen of the mobile terminal as a light source for taking selfies;

Wherein, the processing module includes a screen brightness adjustment unit and a screen color adjustment unit;

The screen brightness adjustment unit is used to increase the brightness of the screen when the light intensity of the environment is lower than a preset value, and further increase the brightness of the screen when the light intensity of the environment is further reduced;

The screen color adjustment unit is used to adjust the display content of the mobile terminal, so as to adjust the luminous color of the screen.

The processing module further includes a recovery unit, which is used to restore the screen brightness value before adjustment and the luminous color of the screen when the control module turns off the front camera.

Implementing the present invention, when the user turns on the front camera of a mobile device such as a mobile phone or a tablet computer to take a selfie in a low-light environment, the light sensor can automatically adjust the brightness of the backlight of the screen to provide more light sources for the face. At the same time, you can choose your favorite background light source according to the user's wishes, thereby improving the photo effect to a certain extent and enhancing the user experience.

Description of drawings

The present invention will be further described below in conjunction with accompanying drawing and embodiment, in the accompanying drawing:

Fig. 1 is the flow chart of main steps of the method for using a mobile terminal to take a selfie provided by a preferred embodiment of the present invention;

Fig. 2 is a flow chart of specific steps of a method for taking selfies using a mobile terminal provided by a preferred embodiment of the present invention;

Fig. 3 is a structural block diagram of a device for taking selfies using a mobile terminal provided by a preferred embodiment of the present invention.

detailed description

As shown in FIG. 1 , it is a flowchart of a method for taking selfies using a mobile terminal provided by a preferred embodiment of the present invention.

As shown, the method includes the following steps:

Step S1, open the front camera in a mobile terminal. It can be understood that the mobile terminal includes a mobile phone, a tablet computer and other mobile terminals, and meanwhile, the mobile terminal has a front camera. Taking a mobile phone as an example, the existing smart phones generally have a front camera, and the user can turn on the front camera to take a selfie, but there is generally no flash for supplementary light near the front camera.

In step S2, the light intensity of the current environment is sensed by the light sensor of the mobile terminal. As mentioned in the above example, after the user turns on the front camera on the mobile terminal, the light sensor of the mobile terminal senses the light intensity of the current environment. The light sensor (or light sensor, light sensor) senses the light intensity of the current environment and records the light intensity, which belongs to the prior art means, and need not be repeated here. At the same time, a preset value of light intensity is set on the mobile terminal, and the preset value is set by the user or preset in the device by the mobile device. When the light sensor senses that the light intensity of the current environment is lower than the preset value, the mobile terminal changes the brightness of the screen to provide higher light intensity. As mentioned in the above example, when the light sensor of the mobile phone records the light intensity, the mobile phone judges whether the light intensity is within the preset value. If the light intensity is higher than the preset value, it means that the current light intensity is enough to provide the user with Sufficient light is suitable for taking selfies. If the light intensity is less than the preset value, go to step S3, and the mobile phone will adjust the screen accordingly.

Step S3, adjusting the brightness of the screen of the mobile terminal according to the current ambient light intensity, and using the light emitted by the screen of the mobile terminal as a light source for taking selfies. When the light intensity sensed by the light sensor of the mobile device is less than a preset value, the mobile device adjusts the brightness of the screen of the mobile terminal according to the light intensity at this time. In the prior art, the screen types of mobile terminals include LED screens, LCD screens, etc., and there are TFT, IPS, SLCD, ASV, NOVA, AMOLED, Super AMOLED and other categories according to materials. Mobile devices usually adjust the brightness of the screen through system setting options. Adjustment, mobile devices with a light sensor can also automatically set the screen brightness through the light sensor, the automatic setting rules vary according to different mobile devices, but the basic way is that the lower the current ambient light, the lower the screen brightness. As described in the above example, in this step, the mobile phone adjusts the screen brightness of the mobile phone according to the current light intensity, that is, the lower the current light intensity, the higher the screen brightness of the mobile phone. It can be understood that the adjustment method is that the current light intensity is linearly related to the brightness of the mobile phone screen, or other correlations are used, or an equivalent stepwise adjustment method is adopted, that is, every time the current light intensity decreases by N candela (light intensity unit), The screen brightness increase of the mobile phone corresponds to N'candela (it can be understood that N is linearly or non-linearly related to N').

Fig. 2 is a supplementary flowchart of a method for taking selfies using a mobile terminal provided by a preferred embodiment of the present invention.

Step S1, judging whether a mobile terminal has a front camera. Because some existing mobile phones and tablet computers do not have a front-facing camera, this method first detects whether the mobile terminal has a front-facing camera. The detection method can be by enumerating the hardware configuration of the mobile device, from the Filter to determine whether there is a front camera. If it is determined that the mobile device does not have a front camera, the method ends; if it is determined that the mobile device has a front camera, then enter step S2.

Step S11, open the front camera in the mobile terminal. When the user needs to take a selfie or use the front camera, the front camera is turned on in the mobile terminal. Usually, the user uses the front camera to take a selfie, or uses the front camera as a camera of a peripheral device such as a computer. It can be understood that the manner of turning on the front camera may be manually operated by the user or operated by the user's voice command.

In step S2, the light intensity of the current environment is sensed by the light sensor of the mobile terminal.

Step S21, judging whether the light intensity is within a preset value. This step and step S2 are the same as the step S2 described in the above example, and will not be repeated here.

Step S3, further increasing the brightness of the screen when the light intensity of the environment is further reduced. This step is the same as step S3 in the above example, and will not be repeated here.

Step S31, adjusting the luminous color of the screen. In this step, the luminous color of the screen is adjusted by adjusting the display content of the mobile terminal. For example, when the background of the screen is set to be a solid red color in the mobile device, the luminous color of the screen of the mobile device is red. For example, when the user turns on the front camera of the mobile phone to take a selfie in low light, after improving the light intensity through this method, the luminous color of the screen can also be used to bring better effects to the user's selfie, for example, the screen's When the display content is adjusted to a solid red color or a solid yellow color, the screen emits red or yellow light, which brings a better selfie effect to the user.

Step S4, using the light emitted by the screen of the mobile terminal as a light source for taking a selfie, and using the front camera to take a selfie. This step is the same as step S4 in the above example, and will not be repeated here.

Step S5, when the front-facing camera is turned off in the mobile terminal, restore the screen brightness value and screen display content before adjustment. Since strong light is likely to irritate the human eyes in a dark environment, when the user uses the front camera to take a selfie or other purposes, restore the screen brightness value and screen display content before adjustment. As mentioned in the above example, if the mobile phone turns on the front camera to take a selfie, the screen brightness increases by N'candela, and the screen switches from the camera preview interface to a yellow solid color background. When the user completes the selfie, the screen brightness of the mobile phone is restored, and at the same time , the screen displays the camera preview interface, or the captured photo preview interface, or the main interface of the mobile phone from the solid yellow background.

Fig. 3 is a structural block diagram of a device for taking selfies using a mobile terminal provided by a preferred embodiment of the present invention.

As shown, the unit includes:

The control module 10 is used to open the front camera in a mobile terminal;

Light sensor 20, is used for sensing the light intensity of current environment;

The processing module 30 is configured to adjust the brightness of the screen of the mobile terminal according to the light intensity, and the device uses the light emitted by the screen of the mobile terminal as a light source for taking selfies.

In this device, the front camera is turned on through the control module 10 . It can be understood that the device includes a mobile phone, a tablet computer and other mobile terminals, and at the same time, the mobile terminal has a front camera, and the front end of the terminal is not provided with a flashlight for supplementary light. Taking a mobile phone as an example, an existing smart phone generally has a front camera, and the user can turn on the front camera to take a selfie.

In this device, the light intensity of the current environment is sensed by the light sensor 20 . As mentioned in the above example, after the user turns on the front camera on the mobile terminal, the light sensor 20 of the mobile terminal senses the light intensity of the current environment. The light sensor 20 (or light sensor, light sensor) senses the light intensity of the current environment, and records the light intensity, which belongs to the prior art means, which need not be repeated here. At the same time, a preset value of light intensity is set on the mobile terminal, and the preset value is set by the user or preset in the device by the mobile device. When the light sensor 20 detects that the light intensity of the current environment is lower than the preset value, the processing module 30 changes the brightness of the screen to provide higher light intensity. As described in the above example, after the light sensor 20 of the mobile phone records the light intensity, the mobile phone judges whether the light intensity is less than the preset value, and if the light intensity is higher than the preset value, it means that the current light intensity is sufficient. Sufficient light is provided to the user, which is suitable for taking selfies. If the light intensity is less than the preset value, the processing module 30 is used to make corresponding adjustments to the screen.

In this device, the processing module 30 further includes a screen brightness adjustment unit 32, and the screen brightness adjustment unit 32 adjusts the screen brightness of the mobile terminal according to the light intensity. When the light intensity of the environment further decreases, the screen brightness adjustment unit 32 further increases the screen brightness. When the light intensity sensed by the light sensor 20 of the mobile device is less than a preset value, the screen brightness adjustment unit 32 adjusts the screen brightness of the mobile terminal according to the light intensity at this time. In the prior art, the screen types of mobile terminals include LED screens, LCD screens, etc., and there are TFT, IPS, SLCD, ASV, NOVA, AMOLED, Super AMOLED and other categories according to materials. Mobile devices usually adjust the brightness of the screen through system setting options. Adjustment, the mobile device with the light sensor 20 can also automatically set the screen brightness through the light sensor 20, the automatic setting rules are different according to different mobile devices, but the basic way is that the lower the current ambient light, the lower the screen brightness . As described in the above example, in the device, the screen brightness adjustment unit 32 adjusts the screen brightness of the mobile phone according to the current light intensity, that is, the lower the current light intensity, the higher the screen brightness of the mobile phone. It can be understood that the adjustment method is that the current light intensity is linearly related to the brightness of the mobile phone screen, or other correlations are used, or an equivalent stepwise adjustment method is adopted, that is, every time the current light intensity decreases by N candela (light intensity unit), The screen brightness of the phone increases corresponding to N'candela.

The processing module 30 further includes a screen color adjustment unit 31, and the screen color adjustment unit 31 adjusts the luminous color of the screen according to the content displayed on the screen. In this device, the display content of the mobile terminal is adjusted by the screen color adjustment unit 31, thereby adjusting the luminous color of the screen. For example, when the background of the screen is set to be a solid red color in the mobile device, the luminous color of the screen of the mobile device is red. For example, when the user turns on the front camera of the mobile phone to take a selfie when the light is dark, after improving the light intensity through the screen brightness adjustment unit 32, it can also use the luminous color of the screen to bring better effects for the user's selfie, for example, When the screen color adjustment unit 31 adjusts the display content of the screen to a solid red color or a solid yellow color, the screen emits red or yellow light, which brings a better Selfie effect to the user.

The device also includes a restoration module 50. When the front camera is turned off in the mobile terminal, the restoration module 50 restores the screen brightness value and screen display content before adjustment. Since strong light is likely to irritate human eyes in a dark environment, so when the user uses the front camera to take a selfie or other purposes, the restoration module 50 restores the screen brightness value and screen display content before adjustment. . As mentioned in the above example, if the mobile phone turns on the front camera to take a selfie, the brightness of the screen increases by N' candela, and the screen is switched from the camera preview interface to a yellow solid color background. When the user completes the selfie, the restoration module 50 restores the screen of the mobile phone Brightness, at the same time, the recovery module 50 restores the screen display from the yellow solid color background to the camera preview interface, or the photo preview interface taken, or the main interface of the mobile phone.

It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the protection scope of the appended claims of the present invention.

Claims (4)

1. use mobile terminal to carry out a method of autodyning, it is characterized in that, comprising:

Step S1, opens front-facing camera in a mobile terminal;

Step S2, by the light intensity of the photosensor senses current environment of this mobile terminal, judges that whether environmental light intensity is lower than a preset value, if current environment light intensity is lower than described preset value, then enters step S3;

Step S3, improves screen intensity, and improves screen intensity further when the light intensity of environment reduces further; By adjusting the displaying contents of mobile terminal, thus the glow color of adjustment screen;

Step S4, the light utilizing the screen of this mobile terminal to send, as light source when autodyning, uses described front-facing camera to autodyne.

2. use mobile terminal according to claim 1 carries out the method for autodyning, and it is characterized in that, further comprising the steps of:

Step S5, after this mobile terminal of use completes auto heterodyne, closes described front-facing camera, and the glow color of the screen brightness value recovered before adjustment and screen.

3. use mobile terminal to carry out a device of autodyning, it is characterized in that, comprising:

Front-facing camera, autodynes for user;

Control module, for opening front-facing camera in a mobile terminal;

Optical sensor, for sensing the light intensity of current environment;

Judge module, for judging that whether the light intensity of environment is lower than a preset value;

Processing module, for adjusting the screen intensity of this mobile terminal according to the light intensity of described environment, the light that this device utilizes the screen of this mobile terminal to send is as light source when autodyning;

Wherein, described processing module comprises screen intensity adjustment unit and screen color adjustment unit;

Described screen intensity adjustment unit, for when the light intensity of environment is lower than preset value, improves screen intensity, and improves screen intensity further when the light intensity of environment reduces further;

Described screen color adjustment unit, for adjusting the displaying contents of mobile terminal, thus the glow color of adjustment screen.

4. use mobile terminal according to claim 3 carries out the device of autodyning, it is characterized in that, described processing module also comprises recovery unit, and described recovery unit is used for, when control module closes front-facing camera, recovering the glow color of the screen brightness value before adjustment and screen.