CONVERSION MATRIX DETERMINING METHOD, IMAGE PROCESSING APPARATUS, IMAGE PROCESSING PROGRAM AND IMAGING APPARATUS

摘要

In a conversion matrix determining method for determining conversion matrix to be used for color conversion process of a photographed image, data of an image photographed under certain conditions and a color measurement value of a target of the image data under the same conditions are acquired. By using the acquired image data and the color measurement value, the conversion matrix is determined for converting colors of the image signals in a nonlinear color space wherein luminance values nonlinearly change.