Patent ID: 8218866

Claim:
A saturation adjustment method comprising: sectioning a color wheel into a plurality of hue regions, each hue region having a corresponding preset full-scale saturation; adjusting the preset full-scale saturation corresponding to a first hue edge of a first hue region of the hue regions to become a first full-scale saturation, wherein the first full-scale saturation is greater than the preset full-scale saturation; setting a first critical saturation corresponding to the first hue edge of the first hue region based on the first full-scale saturation and the preset full-scale saturation; and adjusting a first saturation within a range between the first critical saturation and the first full-scale saturation corresponding to the first hue edge of the first hue region based on the preset full-scale saturation, the first full-scale saturation and the first critical saturation.