Patent ID: 8648968

Claim:
A saturation adjusting apparatus for processing a pixel of a RGB color model, the pixel having three color components each having a value falling within a range defined by upper and lower extreme values, the saturation adjusting apparatus comprising: an extreme value controller for determining a maximum extreme value threshold and a minimum extreme value threshold for ensuring that the values of the color components of the pixel after undergoing linear color correction processing based on a correction indicator (sa) fall within the range defined by the upper and lower extreme values; and a component adjuster including a decision-making unit for choosing the correction indicator (sa) from a group of values, the group including the maximum extreme value threshold, the minimum extreme value threshold, a saturation setting, and a retarding saturation signal for limiting the correction factor (sa), wherein the correction indicator (sa) is chosen based on the saturation setting, and a color corrector for performing linear color correction processing on the three color components of the pixel using the correction indicator (sa).