A color image control system and method are provided for improving the
image control of printing systems, including digital front-end
processors, color printers and post-finishing system. This automatic
image control system, including measurement and calibration, by
registering the captured reproduced document with the extracted virtual
device document and automatically locating a plurality of regions in
which to measure captured color values, using colorimetric measurements
of an aim reproduction of the document at these same region positions,
and finally relating the captured color values, the colorimetric color
values, and the virtual device color values to create the an accurate
color mapping. One embodiment of this method combines a global regression
polynomial with local mapping refinement.