| 摘要 |
In the different mapping planes, described by plane coordinates, of the color space in which colors to map are represented, a uniformity testing curve can be found that intersects all mapping trajectories of this mapping plane and, at any intersection of a mapping trajectory with said uniformity testing curve, the gradients calculated in said plane coordinates of the intersecting mapping lines and the first derivation along this uniformity testing of these gradients are continuous. Thank to the invention, colors are better preserved after mapping, even if there are different mapping methods in the same mapping plane.
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