Invention Grant
US08351098B2 Image processing apparatus, image forming apparatus, methods of controlling image processing apparatus and image forming apparatus to reconstruct an electronic color image from a printed color image
有权
图像处理装置，图像形成装置，控制图像处理装置的方法以及从打印的彩色图像重建电子彩色图像的图像形成装置
- Patent Title: Image processing apparatus, image forming apparatus, methods of controlling image processing apparatus and image forming apparatus to reconstruct an electronic color image from a printed color image
- Patent Title (中): 图像处理装置，图像形成装置，控制图像处理装置的方法以及从打印的彩色图像重建电子彩色图像的图像形成装置
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Application No.: US12179328Application Date: 2008-07-24
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Publication No.: US08351098B2Publication Date: 2013-01-08
- Inventor: Yukihiro Shindo , Yukichika Ichihashi
- Applicant: Yukihiro Shindo , Yukichika Ichihashi
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Canon U.S.A, Inc. IP Division
- Priority: JP2007-198949 20070731
- Main IPC: G03F3/08
- IPC: G03F3/08 ; H04N1/60 ; H04N1/40 ; G06K9/00
Abstract:
A color printed image with compressed colors produced by printing an electronic color image is reconstructed into an electronic color image similar to an original color image by using digital watermark image data with a reduced data size. The digital watermark image data is produced using color difference data of the color image data including luminance data and the color difference data. The digital watermark image data either does not include luminance data or includes luminance data with a data size reduced at a very large ratio.
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