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Screen luminance adjusting method, device and terminal

A technology of screen brightness and adjustment method, applied in TV, color TV parts, electrical components, etc., can solve the problem of difficult to photograph human faces, and achieve the effect of improving user experience and good shooting effect.

Inactive Publication Date: 2016-12-07
BLACKSHARK TECH NANCHANG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when we are taking pictures, if the ambient brightness of the target scene is dark and the imaging sensor is fully exposed, we will find that it is still difficult for us to capture the face clearly.

Method used

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  • Screen luminance adjusting method, device and terminal
  • Screen luminance adjusting method, device and terminal

Examples

Experimental program
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Effect test

Embodiment 1

[0033] The ambient light brightness detected by the S100 may be obtained by sensing the surrounding ambient brightness through a light sensor built in the terminal, or by other methods commonly used in the industry. Comparing the ambient light brightness detected by S100 with a brightness threshold, if the ambient light brightness detected by S100 is greater than or equal to the brightness threshold, then do not perform subsequent steps; if the ambient light brightness is less than the brightness threshold, then perform the subsequent steps A face detection step, the face detection step preferably detects the face in the middle of the picture, and determines the key points of the face. Then proceed to S102 to measure the average distance value of the key points of the face. In this embodiment, the dual-camera distance measurement is adopted. First, the two-camera lens parallax depth distance measurement table needs to be calibrated offline, and then according to the face parall...

Embodiment 2

[0035] The ambient light brightness detected by the S100 may be obtained by sensing the surrounding ambient brightness through a light sensor built in the terminal, or by other methods commonly used in the industry. Comparing the ambient light brightness detected by S100 with a brightness threshold, if the ambient light brightness detected by S100 is greater than or equal to the brightness threshold, then do not perform subsequent steps; if the ambient light brightness is less than the brightness threshold, then perform the subsequent steps A face detection step, the face detection step preferably detects the face in the middle of the picture, and determines the key points of the face. Then S102 is carried out to measure the average distance value of the key points of the face. In this embodiment, laser ranging detection is adopted in this embodiment. The laser ranging sensor is another device on the terminal, which is used to measure the distance between the camera and the hum...

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Abstract

The invention provides a screen luminance adjusting method, device and terminal. The method comprises the following steps: S100, detecting ambient light luminance; S101, starting human face detection and determining the human face key point if the ambient light luminance read by a camera is less than the first threshold value; S102, measuring an average distance value of the human face key point; S103, acquiring the screen luminance level according to the distance and the screen luminance level lookup table, adjusting the screen luminance. Through the adoption of the method of adjusting the screen luminance through human face distance, the shot object or figure is more clear under the low-luminance environment, the shooting effect is better; and meanwhile, the user experience in the self-timing scene is promoted.

Description

technical field [0001] Embodiments of the present invention relate to screen brightness adjustment, in particular to a screen brightness adjustment method, device and terminal. Background technique [0002] With the continuous and rapid development of the electronic information industry, the camera function of smart phones is also constantly improving. Using smartphones to take selfies is becoming more and more popular among users, and at the same time, it has set off an explosive growth of various camera phones. However, when we are taking pictures, if the ambient brightness of the target scene is dark and the imaging sensor is fully exposed, we will find that it is still difficult for us to capture the face clearly. How to make the face clear under the condition of low ambient light is a difficult problem at present. Contents of the invention [0003] The purpose of the present invention is to provide a screen brightness adjustment method, device and terminal. [0004...

Claims

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Application Information

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IPC IPC(8): H04N5/232H04N5/235
CPCH04N23/611H04N23/70
Inventor 邹超洋万美君
Owner BLACKSHARK TECH NANCHANG CO LTD
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