Environmental brightness detection method and device

Abstract

The application discloses an environment brightness detection method and device, and relates to the technical field of image recognition. The specific implementation scheme is: perform color space conversion on each pixel of the acquired first environment image; acquire initial brightness information of the first environment image according to each converted pixel; acquire contrast information of the first environment image; The initial brightness information and contrast information of the environment image, to obtain the environment brightness value. The present application can accurately calculate the brightness value of the real environment of the acquired environment image by using the acquired initial brightness information and contrast information of the first environment image.

Description

Environmental brightness detection method and device technical field [0001] The present application relates to the technical field of image processing, in particular to the technical field of image recognition. Background technique When the mobile terminal adjusts the brightness of the device screen, it needs to rely on the light sensor on the screen of the mobile terminal. It can detect the brightness of the environment, so as to adjust the brightness of the screen according to the detection results. Therefore, light sensors are indispensable for mobile terminals. The lack of hardware structure, if there is no light sensor, the automatic adjustment function of the screen brightness of the mobile terminal cannot be realized. [0003] However, measuring the brightness of the environment by the light sensor still has certain drawbacks. The essence of the light sensor is Detects the reflected light of objects, however dark objects themselves reflect less light, in this ...

AI Technical Summary

Problems solved by technology

Therefore, the light sensor is an indispensable hardware structure of the mobile terminal. If there is no light sensor, the automatic adjustment function of the screen brightness of the mobile terminal cannot be realized.

[0003] However, there are still some disadvantages in measuring the brightness of the environment through the light sensor

The essence of the light sensor is to detect the reflected light of the object. However, the dark object itself reflects less light. In this case, it is difficult for the light sensor to detect the brightness of the environment.

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