| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a bronzing index value calculation method for calculating an index value which quantitatively indicates the degree of bronzing for a printed object. <P>SOLUTION: The method comprises: a difference calculation step of calculating the difference between a hue angle of a colorimetric value of a printed object with respect to diffuse reflection and a hue angle of a colorimetric value of the printed object with respect to specular reflection; a chroma difference calculation step of calculating the difference between a standard chroma with respect to an observational light source and a chroma of a colorimetric value of the printed object with respect to specular reflection under the observational light source; and an index value calculation step of calculating a bronzing index value on the basis of a value obtained by multiplying the calculated difference of the hue angles by the calculated difference of the chromas. <P>COPYRIGHT: (C)2013,JPO&INPIT |
