1. An image processing apparatus for vision reproduction, comprising: image storage means for storing an input image to be used for the vision reproduction; vision characteristics data storage means for storing vision characteristics data of XYZ chromaticity coordinates for a simulated person; color converting means for performing conversion of values of the XYZ chromaticity coordinates in accordance with the vision characteristics data and correcting the input image; and means for outputting an image reproducing a visual situation of the simulated person in accordance with the corrected image.