Image processor

Details Image processor Image processor

2006-03-21

2009-11-17

Alavi, Amir (Department: 2624)

Image analysis

Image compression or coding

Pyramid, hierarchy, or tree structure

C382S218000, C382S100000

Reexamination Certificate

active

07620257

ABSTRACT:
An image processor includes a JPEG 2000 codec. The JPEG 2000 codec generates a plurality of levels of encoded data, and a checksum circuit integrates the encoded data for each of the levels to determine a checksum. The determined checksum is written together with the encoded data into a header of a stream. In decoding a desired level of the encoded data, a checksum is determined again on the basis of the encoded data and compared with the checksum written in the header. Accordingly, if the two matches with each other, it is concluded that the encoded data is not tampered. If the two does not match with each other, it is concluded that the encoded data is tampered and a warning message is displayed on a monitor.

REFERENCES:
patent: 5883978 (1999-03-01), Ono
patent: 6144769 (2000-11-01), Sato et al.
patent: 6343100 (2002-01-01), Fujiwara et al.
patent: 6453073 (2002-09-01), Johnson
patent: 6496539 (2002-12-01), Watanabe et al.
patent: 6917712 (2005-07-01), Tsushima et al.
patent: 6941022 (2005-09-01), Shibata et al.
patent: 6980143 (2005-12-01), Linzmeier et al.
patent: 7187780 (2007-03-01), Tian et al.
patent: 7246065 (2007-07-01), Tanaka et al.
patent: 2005/0265613 (2005-12-01), Fukuhara et al.
patent: 2006/0236200 (2006-10-01), Tanaka et al.

Affiliated with

Also associated with

Rating

Image processor 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 processor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Image processor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4088035