Image encrypting method, and image decrypting method

Details Image encrypting method, and image decrypting method Image encrypting method, and image decrypting method

2003-05-01

2008-08-19

Chai, Longbit (Department: 2131)

Electrical computers and digital processing systems: support

Multiple computer communication using cryptography

Particular communication authentication technique

C713S177000, C713S178000, C713S179000, C713S180000, C713S181000, C380S246000, C382S162000, C382S163000, C382S164000, C382S165000

Reexamination Certificate

active

07415612

ABSTRACT:
An image decrypting apparatus derives spectral reflectance of the face of an original on the basis of obtained original image data, built-in light source data and basis function data, and obtains weighted coefficients of each pixel as object color component data. The apparatus stores a file including the basis function data used at the time of obtaining the spectral reflectance as a key file, and stores a file including the object color component data as an encrypted file. From each of the key file and the encrypted file, the original image data cannot be reproduced. By using the key file and the encrypted file in a correct combination, the original image data can be reproduced. In such a manner, the original image data can be protected.

REFERENCES:
patent: 5809160 (1998-09-01), Powell et al.
patent: 6549653 (2003-04-01), Osawa et al.
patent: 6901514 (2005-05-01), Iu et al.
patent: 2005/0185820 (2005-08-01), Yoshida et al.
patent: 7-222015 (1995-08-01), None
patent: 8-023442 (1996-01-01), None
patent: 9-130620 (1997-05-01), None
patent: 9-181929 (1997-07-01), None
patent: 10-191017 (1998-07-01), None
patent: 2001-103291 (2001-04-01), None
U.S. Appl. No. 09/593,458, filed Jun. 14, 2000.
IEICE technical report, vol. 92, No. 355, Dec. 7, 1992, pp. 19-28. (W/English Summary).

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3997608