A method for enhancing color fidelity in multi-reproduction, includes scanning
an image to be reproduced, wherein the image contains an invisible digital watermark
including color information; decoding the color information contained in the watermark;
comparing the decoded color information with the scanned image; generating a correction
table from the differences between the decoded color information and the scanned
image; and performing color correction on the scanned image using the correction
table. This method confines the color error to one generation, even when copies
go through multiple reproduction.