White balance adjustment method, device and terminal equipment

Abstract

The invention discloses a white balance adjustment method and device and terminal equipment. Colours, presented under different light sources, of skin is measured in advance to obtain mapping relation of the colours of the light sources and the colours, presented under the light sources, of the skin, so that the mapping relation of the colour of the light source and the colour, presented under the light source, of the skin is inquired by virtue of a first colour, presented under a target light source, of the skin in a human face region of the frame image when white balance adjustment is carried out on a frame image, so as to obtain a second colour of the target light source corresponding to the first colour, and carrying out the white balance adjustment on the frame image according to the second colour. Skin colour of human face is relatively stable, the colour of the light source can be obtained on the basis, so that the white balance adjustment is carried out on the frame image, colour cast problem under the condition of large-area colour mixing is avoided, and the technical problem that imaging effect is poor in the prior art is solved.

Description

technical field [0001] The present invention relates to the technical field of photographing, in particular to a white balance adjustment method, device and terminal equipment. Background technique [0002] White balance is a very important concept in the field of photographic imaging, through which a series of problems of color reproduction and tone processing can be solved, and it is one of the important indicators for color evaluation. White balance is a very abstract concept, and the process of adjusting white balance is called white balance adjustment. [0003] In the prior art, when adjusting the white balance, an automatic white balance (Automatic white balance, AWB) adjustment method is usually used. The mainstream adjustment method is to achieve white balance adjustment based on the statistical information of the entire frame, but this method is more susceptible to the influence of most images, for example, when there is a large area of ​​color mixing, the face par...

AI Technical Summary

Problems solved by technology

The mainstream adjustment method is to achieve white balance adjustment based on the statistical information of the entire frame, but this method is more susceptible to the influence of most images, for example, when there is a large area of ​​color mixing, the face part of the entire frame Under the influence of color mixing, identifiable color cast is easy to appear, resulting in poor imaging effect

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