In the color management system, output profile of each connected output device
is detected and a color reproduction region which is a region in color space is
obtained. The color reproduction region is a range of color which can be reproduced
by the output device. The conjunction of all color reproduction regions is obtained
as a common color reproduction region and an edit profile restricted to the common
color reproduction region is generated and updated. The range of the color information
in image data for image editing is restricted to the common color reproduction
region. Thereby, color space compression is unnecessary when outputting an image
from each output device, and output images from output devices have the same color tone.
