1. A method for adjusting a white balance in a digital imaging device, the method comprising: (a) analyzing a histogram of an image to which a white balance algorithm is to be applied in order to determine color distribution values; (b) classifying the image in step (a) according to color distribution determination criteria based on a mean value of the color distribution values, wherein the classifying includes: extracting an achromatic color region through a color temperature estimation; and estimating an accurate white point; and (c) applying the white balance algorithm to the image depending on results of the classification based on color distributions.