Control method and device for luminance of supplementing light of camera, and terminal

A fill light and fill light technology, applied in color TV parts, TV system parts, TV and other directions, can solve the problems of poor fill light effect, fixed brightness control of fill light, etc., to improve the fill light effect Effect

Active Publication Date: 2017-08-18
QIKU INTERNET TECH SHENZHEN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] When the existing mobile phones, cameras and other terminals with camera functions take pictures, in order to be able to collect higher-quality images in an environment with poor brightness, a supplementary light is usually provided to supplement the light to slow down the impact of the environment on the captured images. However, the brightness control of the fill light in the existing camera functions is relatively fixed. For example, no matter what kind of environment, a brightness is used for fill light, and the brightness is usually artificially set in advance, resulting in poor light effect
[0003] Aiming at the problem of poor fill light effect in the above-mentioned camera functions, no effective solution has been proposed yet

Method used

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  • Control method and device for luminance of supplementing light of camera, and terminal
  • Control method and device for luminance of supplementing light of camera, and terminal
  • Control method and device for luminance of supplementing light of camera, and terminal

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Experimental program
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Embodiment 1

[0031] figure 1 A flow chart of a method for controlling the brightness of a camera supplementary light provided by an embodiment of the present invention is shown. The method can be applied to a terminal equipped with a camera function and a supplementary light. The method includes the following steps:

[0032] Step S102, when the camera function of the terminal captures the preview image, determine the supplementary light influence value of the current photo according to the preview image, and the supplementary light influence value includes at least two of the following parameters: ambient brightness value, face proportion value and Object distance value;

[0033] The aforementioned taking pictures may refer to taking pictures, previewing images, recording videos, and the like.

[0034] Specifically, the ambient brightness value is a parameter reflecting the brightness and darkness of the current photographing environment.

[0035] The face ratio refers to the proportion ...

Embodiment 2

[0059] On the basis of Embodiment 1, this embodiment specifically takes two types of supplementary light influence value including ambient brightness value and human face proportion value as examples to describe in detail. figure 2 It shows a flow chart of a second method for controlling the brightness of a camera fill light provided by an embodiment of the present invention, including the following steps:

[0060] Step S202, when the camera function of the terminal captures the preview image, determine the ambient brightness value and face proportion value of the current photo according to the preview image;

[0061] Specifically, an implementation manner of determining the ambient brightness value is: determining the average brightness of the preview image as the ambient brightness value of the current photograph;

[0062] An implementation method of determining the proportion of a face is: counting the maximum proportion of a face in the preview image, and determining the ...

Embodiment 3

[0088] On the basis of the above-mentioned embodiments, this embodiment specifically takes the three types of supplementary light influence values ​​including ambient brightness value, human face proportion value and subject distance value as examples for detailed description. Figure 4 It shows a flowchart of a fourth method for controlling the brightness of a camera supplementary light provided by an embodiment of the present invention, including the following steps:

[0089] Step S402, when the camera function of the terminal captures the preview image, determine the average brightness of the preview image as the ambient brightness value of the current photo; determine the maximum face ratio in the preview image as the face ratio of the current photo; And determine the subject distance value of the current photo according to the phase difference of the preview image;

[0090] Wherein, determining the subject distance value of the current photo according to the phase differe...

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Abstract

The invention provides a control method for luminance of a supplementing light of a camera, and relates to the technical field of light supplementing control of the camera. The method comprises the steps of determining a light supplementing influence value for current photographing according to a preview image when a camera function of the terminal captures the preview image, wherein the light supplementing influence value comprises two of following parameters: an ambient luminance value, a human face ratio and a subject distance value; determining the best power supply parameter value corresponding to the luminance of the supplementing light according to the light supplementing influence value; and controlling the luminance of the supplementing light when the terminal taking a photograph according to the best power supply parameter value. According to the method and the device provided by the invention, the luminance of the supplementing light of the terminal can be controlled according to the current light supplementing influence value, and thus the light supplementing effect of the camera is enhanced.

Description

technical field [0001] The present invention relates to the technical field of camera supplementary light control, in particular to a method, device and terminal for controlling the brightness of a camera supplementary light. Background technique [0002] When the existing mobile phones, cameras and other terminals with camera functions take pictures, in order to be able to collect higher-quality images in an environment with poor brightness, a supplementary light is usually provided to supplement the light to slow down the impact of the environment on the captured images. However, the brightness control of the fill light in the existing camera functions is relatively fixed. For example, no matter what kind of environment, a brightness is used for fill light, and the brightness is usually artificially set in advance, resulting in The light effect is poor. [0003] Aiming at the problem of poor fill light effect in the above-mentioned camera functions, no effective solution ...

Claims

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Application Information

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IPC IPC(8): H04N5/232H04N5/235
CPCH04N23/62H04N23/74
Inventor 巫吉辉
Owner QIKU INTERNET TECH SHENZHEN CO LTD
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