An optimization method for automatic white balance, terminal and computer-readable storage medium

Abstract

The embodiment of the invention discloses an automatic white balance optimization method, a terminal and a computer readable storage medium. The automatic white balance optimization method comprises the following steps: obtaining color parameters and brightness parameters corresponding to preset statistical points in a current scene, wherein one preset statistical point corresponds to one color parameter and one brightness parameter; judging whether to perform optimization processing according to the color parameters and the brightness parameters; if it is judged that the optimization processing is performed, determining a first automatic white balance awb value according to the color parameters and the brightness parameters; and determining the optimized awb value according to the first awb value and a pre-stored brightness weight table. By adoption of the automatic white balance optimization method provided by the embodiment of the invention, the accuracy of the awb value in a special scene can be effectively improved.

Description

technical field [0001] The invention relates to terminal technology, in particular to an automatic white balance optimization method, a terminal and a computer-readable storage medium. Background technique [0002] The purpose of automatic white balance (awb) processing is to uniformly compensate the color deviation caused by the color temperature environment and the inherent color channel gain deviation of the terminal itself by changing the gain of the color channel of the terminal, so that the obtained The image can correctly reflect the true color of the object. In the prior art, when calculating the automatic white balance, it usually counts the statistical points corresponding to the current scene, including collection points and light source points, and then according to the position distribution and correspondence of the statistical points in the R / G and B / G coordinate systems The weight value of is calculated. figure 1 It is a schematic diagram of common awb value...

AI Technical Summary

Problems solved by technology

[0003] However, for some special scenes, such as pure color scenes, high-brightness scenes, etc., calculations based on existing methods cannot accurately determine the distribution of awb values ​​in the R / G and B / G coordinate systems, that is, For some special scenarios, the accuracy of the awb value obtained by the existing method is low

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