Patent ID: 7773804

Claim:
An apparatus for adjusting specific color attributes, comprising: a processor comprising a color space transforming unit, for receiving a color input signal with luminance and chrominance not separated, and transforming it into a color intermediate signal with separated luminance and chrominance; a color controlling unit, for computing the hue of the color input signal to generate a hue signal, computing the color input signal to generate an adjustment parameter, generating a hue fine-tune signal, a saturation fine-tune signal and an intensity fine-tune signal according to the hue signal, and adjusting the saturation fine-tune signal according to the adjustment parameter to generate an adjusted saturation fine-tune signal or adjusting the intensity fine-tune signal according to the adjustment parameter to generate an adjusted intensity fine-tune signal, wherein the color controlling unit comprises a hue computing unit, for computing the hue of the color input signal to generate the hue signal, and computing the color input signal to generate the adjustment parameter; a fine-tune mapping table, for generating the hue fine-tune signal, the saturation fine-tune signal and the intensity fine-tune signal according to the hue signal; and a fine-tune signal adjusting unit, for generating a weight factor according to the adjustment parameter, and adjusting the saturation fine-tune signal and the intensity fine-tune signal by using the weight factor to generate the adjusted saturation fine-tune signal and the adjusted intensity fine-tune signal; and a color adjusting unit, for adjusting the color intermediate signal according to the hue fine-tune signal, the adjusted saturation fine-tune signal or the adjusted intensity fine-tune signal to output a color output signal.