A color processing method includes setting a reference color as a reference for mapping, setting a distribution range of mapped points based on a color value of the set reference color, distributing a mapped point corresponding to an input color into the distribution range, and mapping the input color into an output color gamut using the mapped point. Optimization of the computer program code can be performed during compilation of the computer program code and, during the optimization, implicit sequence points can be inserted into the computer program code. A head is associated with an end of this hooking section. Utilizing the charge model, problem solutions are naturally reached and are self-adjusting in response to parameter changes in the problem.