In a system and a method for profiling a digital-image input device,
profiling of the digital-image input device is performed based at least
on an image of a color chart and an estimated illumination of the color
chart generated by comparing illumination of device-dependent coordinate
values for the image of the color chart with illumination of
device-independent coordinate values of the color chart. Because the
estimated illumination of the color chart is performed on data pertaining
to the color chart, the present invention may generate a profile without
reference to data pertaining to scenery in the image outside of the color
chart. Consequently, the present invention may generate a profile
irrespective of the relative exposure of the color chart with respect to
other scenery in the image.