Image analysis – Applications
Reexamination Certificate
2005-03-29
2005-03-29
Boudreau, Leo (Department: 2621)
Image analysis
Applications
C348S032000, C358S002100
Reexamination Certificate
active
06873711
ABSTRACT:
An image processing device is provided to efficiently embed digital watermark information in a gray scale image while suppressing deterioration in the image quality. The image processing device includes an input unit for inputting gray-scale image data in which each pixel is formed of one component. A converter converts the format of the gray-scale image data into color image data in which each pixel is formed of a plurality of components. An embedding unit embeds the digital watermark information in part of the components of the color image data obtained by the converter.
REFERENCES:
patent: 4998165 (1991-03-01), Lindstrom
patent: 5168352 (1992-12-01), Naka et al.
patent: 5210600 (1993-05-01), Hirata
patent: 5332968 (1994-07-01), Brown
patent: 5534915 (1996-07-01), Sandrew
patent: 5652626 (1997-07-01), Kawakami et al.
patent: 6125201 (2000-09-01), Zador
patent: 6332030 (2001-12-01), Manjunath et al.
patent: 6351558 (2002-02-01), Kuwata
patent: 6590996 (2003-07-01), Reed et al.
Chae et al., Color Image Embedding using Multidimensional Lattice Structures, 1998, IEEE, pp. 460-464.*
Piva et al., Exploiting the cross-correlation of RGB-channels for robust watermarking of color images, 1999, IEEE, pp. 306-310.
Hayashi Junichi
Murakami Tomochika
Boudreau Leo
Patel Shefali
LandOfFree
Image processing device, image processing method, and... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Image processing device, image processing method, and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Image processing device, image processing method, and... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3409990