Method and device for identifying and adjusting human face luminance based on photographing

Abstract

The invention relates to a method and a device for identifying and adjusting human face luminance based on photographing. The device comprises an identifying unit, a comparing unit and an adjusting unit, wherein the identifying unit is used for acquiring an image to be photographed and identifying a human face region in the image; the comparing unit is used for obtaining pixel luminance in the human face region and dividing the human face region into at least two regions according to the pixel luminance and a pre-set strategy; and the adjusting unit is used for adjusting a luminance value of the region according to a size comparing result of the luminance value of each region and a pre-set luminance range so that the luminance value of the human face region in the photographed image is uniform. By the aid of the method and the device for identifying and adjusting the human face luminance based on photographing, different parts of the human face region in the photographed image can be subjected to luminance adjustment so that the brightness of the human face region in the photographed image is more uniform and the individualized requirements of users are met.

Description

technical field [0001] The present invention relates to the technical field of photographing, in particular to a method and device for adjusting the brightness of a human face based on photographing recognition. Background technique [0002] At present, when using the camera of the terminal device to shoot portraits or faces, due to the complex light conditions outside, it is very easy to produce overexposure or underexposure in the face area. For example, due to the influence of light diffusion, for general oily skin or highly makeup skin, it is easy to cause overexposure of local areas of the face. For example, if you use a flash in a dark environment, once the brightness or angle of the flash is not appropriate, it is very easy to cause underexposure of some areas of the face. In view of the above situation, the camera of the existing terminal equipment has a face automatic exposure function when shooting, that is, metering is performed according to the face part, so as ...

AI Technical Summary

Problems solved by technology

However, this technology controls the exposure of the entire shooting screen, and sometimes the forehead area of ​​the face will be overexposed, or the corners of the eyes, eye sockets and other areas will be underexposed.

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