FAVORITE COLOR CORRECTION FOR REFERENCE COLOR

In TV system, the viewer can adjust the color control at the receiver for optimal color reproduction, but frequent incorrect color adjustmen t is the most common problem experienced by the viewer. Another proble m for the viewer is that he does not have a reference color to compare the reproduced colors. In this paper, we propose a favorite color cor rection circuit which represents the favorite color to the viewer on d emand. The proposed circuit reproduces flesh tone which is widely used as a reference color in TV system; blue color which is directly relat ed to tri-stimulus values; and green color which has higher visual sen sitivity. In the proposed algorithm, the variation range of phase dete ctor output voltage was minimized for the favorite color saturation ch anges and also the color signal phase is readjusted from the color bur st signal. Thus, the favorite color was easily detected from the other colors without overlapping of correction range and it provides refere nce color to viewer.