White balance adjusting system and white balance adjusting method

The invention discloses a white balance adjusting system. According to the white balance adjusting system, a processing module is used for pretreatment of image data, and the image data after the pretreatment is output. A white balance module is used to receive the image data output by the processing module. In an RGB color space, the white balance module is used for the white balance calculation of the image data to acquire the first yield value of the image data. In a CMY color space, the white balance module is used for the pixel array conversion of the image data, and then according to the conversion matrix of the RGB color space and the conversion matrix of the CMY color space, the white balance calculation of the image data in the CMY color space is carried out to acquire the second yield value of the image data. The processing module is used to receive the first yield value or the second yield value, and is used for the white balance adjustment of the image data according to the first yield value or th