PDP에서의 의사 윤곽 감소를 위한 LUT기반의 오차 확산 방법

초록

PDPs(Plasma display panels) represent the gray levels by the pulse number modulation technique that results in undesirable dynamic false contours on the moving images. This paper proposes a LUT(Look-up table) based error diffusion algorithm for the dynamic false contour reduction. In the proposed method, the gray level pair of previous and current frame is utilized as an index for searching new gray level in the LUT constructed in advance. The gray level of the current frame is changed to minimize the dynamic false contours. In order to compensate for the gray level change, an error diffusion algorithm is applied.