Patent ID: 7148921
Filing Date: 2006-12-12
Classification: H04N

Abstract:
1. A white balance adjustment method comprising: a first color temperature calculation step of calculating a first color temperature from an image signal within a white detection range out of image signals from an image sensing element; a second color temperature calculation step of calculating a second color temperature from an image signal within a chromatic color detection range out of image signals from the image sensing element; and a white balance adjustment step of adjusting white balance on the basis of the first and second color temperatures, wherein the first and second color temperatures are compared; when the first color temperature is substantially equal to the second color temperature or the first color temperature is higher than the second color temperature, the first color temperature is determined as a color temperature of a light source; and when the second color temperature is higher than the first color temperature, the second color temperature is determined as the color temperature of the light source.