Color signal correction device and method, and image processing system using the same and method thereof

摘要

A color signal correction device includes a saturation gain calculation unit to calculate saturation gain for incoming luminance_color difference signals, a luminance gain calculation unit to calculate luminance gain for the luminance_color difference signals, a hue calculation unit to calculate hue for the luminance_color difference signals, a hue gain calculation unit to calculate hue gain by reflecting a user adjustable hue adjust value to the hue calculated by the hue calculation unit, a correction gain calculation unit to calculate correction gain of the luminance_color difference signals to be corrected by combining the calculated saturation gain, luminance gain, and hue gain, and a color signal correction unit to correct the luminance_color difference signals based on the correction gain calculated by the correction gain calculation unit. Accordingly, the present color signal correction device reflects the hue adjust value that is adjusted by a user, thus reproducing the user desired color image on a display.