Patent ID: 6952225
Filing Date: 2005-10-04
Classification: H04N

Abstract:
1. An automatic white balance adjustment method, comprising the steps of: (a) determining a luminance level of a subject; (b) dividing an image plane, on which the subject is imaged, into a plurality of areas; (c) acquiring color information of each of the areas; (d) setting at least one determination frame indicating at least a color distribution range of a light source; (e) finding a number of the areas belonging to the determination frame in accordance with the color information of each of the areas acquired at step (c); (f) determining a type of a light source with which the subject is illuminated according to the luminance level of the subject determined at step (a) and the number of the areas belonging to the determination frame found at step (e); and (g) adjusting a white balance according to the type of the light source determined at step (f).