1. A color processing apparatus comprising: an input unit configured to input plural measurement values for generating a color separation table, which are obtained by measuring a plurality of color patches included in a color chart; an estimator configured to estimate measurement values corresponding to the input plural measurement values other than supervised input plural measurement values, using the supervised input plural measurement values; a calculator configured to calculate color differences between the estimated measurement values and the corresponding input plural measurement values; and a determiner configured to determine whether printing of the plurality of color patches or measurement of the plurality of color patches has been performed correctly, based on the color differences calculated by the calculator.