摘要
3D_LUT是目前普遍使用的打印机色彩校正方法,实践证明均匀3D_LUT有更高的校正精度和效率。针对3D_LUT均匀化问题,文章给出了一种先用Neugebauer方程建立打印输入/输出关系的近似描述,进而直接生成近似均匀3D_LUT的方法,并给出了对应的快速查找算法。与现有反向均匀化方法相比,新方法不附加反向插值误差,可提高色彩校正精度。
D_LUT technology is now widely used in color printer calibration,and uniform3D_LUT technology is proved to have higher precision and efficiency.To make the3D_LUT uniform directly,this paper proposes a new method to apply Neugebauer model first and then build an approximate uniform3D_LUT.The algorithm of swiftly looking up approximate uniform3D_LUT is described in detail.Compared with the inverse uniformity technology,the new approach avoids the additional inverse interpolating error and improves the precision in color calibration.
出处
《计算机工程与应用》
CSCD
北大核心
2003年第32期76-77,107,共3页
Computer Engineering and Applications
基金
部委预研基金资助
