Color conversion table construction conversion method and computer-readable recording medium having color conversion table construction conversion program recorded thereon

A computer-readable recording medium having a color conversion table construction conversion program recorded thereon, the color conversion table construction conversion program causing, in order to convert a construction of a color conversion table representative of corresponding relationships of colors between a first color space and a second color space, a computer to execute:

• a data production interval setting procedure that sets data production intervals in the first color space based on a data dispersion in one of the first color space and the second color space;
• a data production procedure that increases the number of data representative of the corresponding relationships of colors at the data production intervals obtained by the data production interval setting procedure;
• a first data selection procedure that selects a data which has not been registered in an originally constructed color conversion table from said increased data;
• a second data selection procedure that selects a data present at or closer to a grid point of said second color space from either one of data of the color conversion table and the data increased by the data production procedure;
• and
• a converted color conversion table construction procedure that constructs a converted color conversion table based on the selected data.

A method of converting construction of a color conversion table representative of corresponding relationships of colors between a first color space and a second color space, comprising:

• producing data corresponding to relationships between colors in the second color space and coefficients necessary for production calculation of colors in the first color space corresponding to the colors in the second color space to increase a number of data representative of the corresponding relationships of colors;
• selecting a data which has not been registered in an originally constructed color conversion table from said increased data;
• selecting a data at or closer to a grid point of said second color space from either one of the data of the the color conversion table and the increased data;
• calculating, regarding the selected data, colors in the first color space from coefficients necessary for color production calculation in the first color space generated by the produced data, and
• constructing a converted color conversion table based on the selected data.

A computer-readable recording medium having a color conversion table construction conversion program recorded thereon, wherein to construct a converted color conversion table representative of corresponding relationships of colors between a first color space and a second color space the color conversion table construction conversion program causing a computer to execute:

• a data production procedure that produces corresponding relationships between colors in the second color space and coefficients necessary for production calculation of colors in the first color space corresponding to the colors in the second color space to increase data representative of the corresponding relationships of colors;
• a first data selection procedure that selects a data which has not been registered in an originally constructed color conversion table from said increased data;
• a second data selection procedure that selects a data present at or closer to a grid point of said second color space from either one of data of the color conversion table and the data increased by the data production procedure;
• a color calculation procedure that calculates, regarding the selected data selected, colors in the first color space from coefficients necessary for color production calculation in the first color space produced by the data production procedure;
• and
• a converted color conversion table construction procedure that constructs a converted color conversion table based on results of the color calculation procedure.