  In prepress department RGB image has to be converted to CMYK image. To
control that amount of black, cyan, magenta and yellow has to be controlled by
using color separation method. Graycolor separation method is selected to
control the amounts of these colors because it increase the quality of printing
also. A single printer used for printing the same image on different paper also
results in different printed images. To remove this problem a different ICC
profile based on gray level control is developedand a sheet offset printer is
calibrated using that profile and a subjective evaluation shows satisfactory
results for different quality papers.
