Color reproduction corrector for image input device and color reproduction correction method

A color reproduction correcting device for an image data picked up by an image input apparatus which outputs information regarding a type of an image pick-up light source and information containing chromaticity point data of the image pick-up light source, that is to say information on the estimated result of the image pick-up light source, the color reproduction correcting device for an image input apparatus characterized by comprising:

• white balance matrix production means for receiving the chromaticity point data from the image input apparatus to produce a correction matrix for white balance;
• light source type determination means for receiving information on the image pick-up light source from the image input apparatus to determine the types of an image pick-up light source and an image color reproduction light source;
• transformation matrix production means for producing a transformation matrix reflecting the optical characteristics of the picked-up object, using predetermined color matching function data, spectral characteristic data regarding the image pick-up light source and color reproduction light source of the types determined by the light source type determination means, optical characteristic data on a predetermined picked-up object and the correction matrix data for white balance;
• and
• color correction processing means for performing color reproduction correction with respect to the image data, using the transformation matrix.