Method and apparatus for data hiding in images

Details Method and apparatus for data hiding in images Method and apparatus for data hiding in images

1997-11-17

1999-02-09

Mancuso, Joseph

Image analysis

Image compression or coding

380 54

Patent

active

058704990

ABSTRACT:
A method of hiding a pattern in a host image increases and decreases parameter values at randomly selected host image locations assigned to respective first and second groups. The alteration modifies the statistical behavior of a test statistic equivalent to a linear combination of a large number of instances of respective functions, associated with the pattern, of the parameter values at first and second group locations. The presence or absence of the pattern in a test image is determined by comparing the experimental value of the test statistic associated with the pattern with the expected value of the same sum for an unaltered host image.

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patent: 4499551 (1985-02-01), Frank
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patent: 4783840 (1988-11-01), Song
patent: 5243423 (1993-09-01), DeJean et al.
patent: 5398283 (1995-03-01), Virga
Hecht, David L, "Embedded Data Glyph Technology for Hardcopy Digital Documents", SPIE, vol. 2171, pp. 341-352 (1994).
Hecht, Embedded Data Glyph Technology for Hardcopy Digital Documents, 1994, pp. 341-352, SPIE vol. 2171.

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