Patent ID: 7515732
Filing Date: 2009-04-07
Classification: G06T,H04N

Abstract:
1. A method for printing hard copy images with enhanced color fidelity in a multi-reproduction system, comprising: producing a hard copy of an original hard copy image containing a digital watermark encoding color information about the original hard cop image, comprising: extracting color information from the original hard copy image; embedding and encoding the extracted color information in the digital watermark associated with the original image; printing a copy of the original hard copy image containing the digital watermark; printing a copy of the printed image containing the digital watermark, comprising: scanning the printed image containing the digital watermark; decoding the color information contained in the watermark; comparing the decoded color information with the scanned image; generating a color-correction table from the differences between the decoded color information and the scanned image; performing color correction on the scanned image using the correction table; and printing the color corrected scanned image.