Image white balance processing method, device and terminal device

Abstract

The invention discloses an image white balance processing method, device and terminal equipment, wherein the method includes: calculating a first gain value for the image according to a face white balance algorithm used to adjust the face in the image to the skin color. According to the grayscale world algorithm, the second gain value is calculated for the image. It is judged whether the first gain value is similar to the second gain value. If the first gain value is similar to the second gain value, perform white balance processing on the image according to the second gain value; if the first gain value is not similar to the second gain value, perform white balance processing on the image according to the first gain value. Solve the technical problem that selecting the white balance algorithm through the user setting method will easily cause the white balance algorithm to not match the actual scene, resulting in poor white balance processing effect.

Description

technical field [0001] The present invention relates to the technical field of mobile terminals, in particular to an image white balance processing method, device and terminal equipment. Background technique [0002] The human visual system has color constancy, which can obtain the invariant characteristics of the surface color of the object from the changing lighting environment and imaging conditions. For example, humans perceive a white object as white whether viewed indoors under tungsten lighting or in dim light. This is due to the continuous growth of human beings, and the human brain has adapted to the color of objects under different light. [0003] However, the imaging device does not have such an adjustment function, and it is necessary to select an appropriate color balance algorithm to eliminate the influence of the lighting environment on color appearance. There are various white balance algorithms in the prior art, all of which can be used to calculate the ga...

AI Technical Summary

Problems solved by technology

[0005] For this reason, the first purpose of the present invention is to propose a white balance processing method for images, which solves the problem of choosing a white balance algorithm in a way set by the user, which may easily lead to a mismatch between the white balance algorithm and the actual scene, resulting in a white balance processing effect. poor technical issues

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