| 摘要 |
A color conversion method robust for unstableness of color reproduction in a color image device is provided. A color converting device 103 includes color data input means 1 for reading therein color device values and measured color data thereof of a color image device, a color data storage memory 2 for storing color device values and measured color data, Delaunay diagram constructing and shaping means 8 for constructing a Delaunay diagram using measured data distributed in a three-dimensional color space and deleting unnecessary Delaunay tetrahedrons, a Delaunay tetrahedron storage memory 4 for storing subdivision information of Delaunay tetrahedrons, Delaunay tetrahedron searching and color device value calculating means 9 for searching for a Delaunay tetrahedron including input colors and calculating associated color device values, and paste processing and associated color calculating means 7 for pasting, when the Delaunay tetrahedron including the input colors cannot be retrieved, the input colors to a point on a triangular plane of one of the Delaunay tetrahedrons and calculating associated color device values.
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