Patent ID: 8194151

Claim:
A video signal adjusting method for use in an image pickup apparatus employing an image pickup device in which pixels coated with different color filters are arranged, the method comprising: separating a video signal outputted from the pixels coated with the different color filters into three color image signals; generating a color balance adjustment signal and a hue adjustment signal from the separated three color image signals; and adjusting the video signal outputted from the pixels coated with the different color filters by using the color balance adjustment signal and the hue adjustment signal, wherein the video signal conveys outputs of the pixels in a preset sequential order, wherein said separating the video signal is performed such that each of the outputs of the pixels is conveyed by one of the three color image signals, and wherein the color balance adjustment signal includes three color balance adjustment coefficients for three different colors and the hue adjustment signal includes three hue adjustment coefficients for the three different colors, and wherein said adjusting the video signal includes: producing a color-balance-adjusted video signal by multiplying each of the outputs of the pixels by one of the three color balance adjustment coefficients; and producing a hue-adjusted video signal by adding each of the adjusted outputs of the pixels in the color-balance-adjusted video signal and one of the three hue adjustment coefficients.