White balance adjusting method with scene detection and device thereof

A white balance adjusting device with scene detection, comprising:

• a data input interface to receive source image data from an image capture unit in which the source image data include a plurality of sensing units;
• a white balance calculating unit, coupled to the data input interface, to generate an initial white balance gain according to the source image data;
• an image parameter calculating unit, coupled to the data input interface, to generate at least one image parameter corresponding to a plurality of parameter elements according to the source image data;
• a decision unit, coupled to the image parameter calculating unit, to determine whether at least one preset condition is satisfied based on the at least one image parameter and accordingly generate a decision result;
• and
• a scene determining unit, coupled to the decision unit and the white balance calculating unit, to determine whether the source image data are associated to 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,
• wherein 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.