휘도값에 가변하는 닻점을 이용한 영상 의존 색역 사상 방법 = Image Dependent Gamut Mapping Using the Variable Anchor Point Based on lightness

다국어 초록 (Multilingual Abstract)

Currently many devices reproduce electronic images in the various ways. However the color that is reproduced in any device is different from the original color due to the differences in the gamut between devices. In this paper, an image dependent gamut mapping method is proposed. This method clips the chroma with compensating for the change of lightness caused by the lightness scaling. The anchor point, which is the center point in the mapping, is set as a lower point by the proposed method than a point by the conventional mapping method. This reduces the color difference between the original image on the monitor and the results on the printer after mapping toward this anchor point. In addition, to heighten the color contrast on the constant hue, the different two mapping methods are applied to the printer gamut which is divided in two regions, bright region and dark region. Consequently, the printer output image was highly consistent with the corresponding monitor image.