Patent ID: 8355165
Filing Date: 2013-01-15
Classification: H04N

Abstract:
1. An apparatus for processing luminance data and color-difference data of color image data, the apparatus comprising: a processing unit configured to perform first data amount reduction processing on the luminance data to output reduced luminance data, and configured to output the color-difference data without reducing a data amount thereof at a reduction ratio equal to or higher than a reduction ratio in the first data amount reduction processing; a generation unit configured to generate digital watermark image data by encoding the reduced luminance data and the color-difference data output from the processing unit; and a production unit configured to produce a print product based on the luminance data before being subjected to the first data amount reduction processing and the digital watermark image data generated by the generation unit, wherein the luminance data and the digital watermark image data are output as luminance component data and no data as color-difference component data, and wherein the print product produced by the production unit based on the digital watermark image data and the luminance data as output luminance component data is configured to be used to generate color image data.