Interpolation errors on gray gradations caused by the three-dimensional lookup table method

摘要

Three-dimensional table interpolation techniques are now widely used n color management systems. These techniques are practical because complicated color conversions such as gamma conversion, matrix masking, under color removal, or gamut mapping can be executed at once by use of a three-dimensional lookup table (3D LUT). However, in some cases, the resultant inter- polated reproduction of gradation has visible artifacts that degrade neutral and color gradations.