| 摘要 |
<p>UCR (under color removal) amount is determined, which can satisfy printing conditions as desired easily and within short time. Gray balance for Y, M and C is inputted from input means 13. A control means 9 interpolates the inputted gray balance as necessary and instructs a test pattern generator 12 and an output unit 7 to output a test pattern so that matrix is formed by Y, M, C and K. Based on the outputted test pattern, a print plate is prepared, and a sample of matrix is prepared by 4-plate overlapping printing. Each density of matrix is measured, and said measured density value is inputted from the input means 13. The control unit 9 incorporates each density and calculates the amount of UCR, which satisfies the input gray balance from interrelation of the density of Y, M, C and K of the matrix. <IMAGE></p> |
