| 摘要 |
PURPOSE:To improve a color reproducibility and to make a color matching most optimum by placing a signal converting processing for compensating a color correction masking in the vicinity of the linear color correction masking due to a simple matrix. CONSTITUTION:A look up table (LUT)14 has a function relevant to an analog logarithmic amplifier, by making digital video signals R0, G0, B0 augments, digital three color density data DR, DG, DB corresponding thereto are generated and a gamma correction of a television system is canceled at that time. Then, the color correction masking by the 3X3 matrix of a rear stage is performed in the information of density. Thereby, equivalent neutral density data DR', DB', DB' are formed from a matrix arithmetic circuit 16. Then, the LUC20 is used, analytic density extremely approximate to colorimetric density is obtained according to the coloring characteristic of the color material of an applied recording medium.
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