White balance adjusting method with scene detection and device thereof

摘要

A white balance adjusting method with scene detection comprises: receiving source image data corresponding to a plurality of sensing units; generating an initial white balance gain according to the source image data; generating an image parameter corresponding to a plurality of parameter elements according to the source image data; determining whether a preset condition is satisfied according to the image parameter to generate a decision result; determining whether the source image data are associated with any of built-in scenes according to the decision result in which the built-in scenes include a first scene in connection with a first-scene adjustment rule; and if the source image data are associated with the first scene, adjusting the initial white balance gain or processing the source image data according to the first-scene adjustment rule to thereby obtain a scenic white balance gain and adjust the source image data with it.

主权项

1. A white balance adjusting method with scene detection carried out by a white balance adjusting device, comprising:
receiving source image data corresponding to a plurality of sensing units; generating an initial white balance gain according to the source image data; generating at least one image parameter corresponding to a plurality of parameter elements according to the source image data, wherein the at least one image parameter includes at least one of a brightness parameter, a chrominance parameter and a texture parameter; determining whether at least one preset condition is satisfied according to the at least one image parameter, and thereby generating a decision result, wherein the step of generating the decision result includes:
determining whether an element number or a percentage of the parameter elements in compliance with a predetermined color is higher than a predetermined threshold according to the chrominance parameter to thereby generate a chrominance decision result;determining whether an average or weighted brightness value of the parameter elements in compliance with the predetermined color is higher or lower than a predetermined brightness value according to the brightness parameter to thereby generate a brightness decision result; andgenerating the decision result according to the chrominance decision result and the brightness decision result; determining whether the source image data are associated with any of built-in scenes and/or an association between the source image data and the built-in scenes according to the decision result in which the built-in scenes include a first scene in connection with a first-scene adjustment rule; and if the source image data are associated with the first scene, adjusting the initial white balance gain or processing the source image data according to the first-scene adjustment rule to thereby obtain a scenic white balance gain and adjust the source image data with the scenic white balance gain.