The invention provides a method for representing a device color gamut as a detail directed hierarchical distance field. A distance field representing the device color gamut is enclosed with a bounding box. The enclosed distance field is partitioned into a plurality of cells. Each cell has a size corresponding...http://www.google.de/patents/US6483518?utm_source=gb-gplus-sharePatent US6483518 - Representing a color gamut with a hierarchical distance field
