Image analysis – Applications
Reexamination Certificate
2007-09-11
2007-09-11
LaRose, Colin (Department: 2624)
Image analysis
Applications
C382S284000, C358S003280
Reexamination Certificate
active
10377929
ABSTRACT:
A first digital image is combined with a transformed first digital image to authenticate and reconstruct the first digital image. When viewed in the standard manner, the combined image appears to be the first digital image. The transformed first digital image cannot be seen. When the bits within each pixel of the combined image are reversed, i.e. the least significant bit (LSB) is exchanged with the most significant bit (MSB), and the resultant image is viewed, then the transformed first digital image is seen. In this way, the transformed first digital image can be hidden inside the noise bits of the first digital image. The method is applied to color pixels by treating each color byte independently. The transformed first digital image can be encrypted before combining with the first digital image. The transformed first digital image can be inversely transformed back to the first digital image for authentication and reconstruction.
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patent: 6671388 (2003-12-01), Op De Beeck et al.
patent: 6731774 (2004-05-01), Hosaka et al.
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patent: 6968072 (2005-11-01), Tian
LaRose Colin
Oliff & Berridg,e PLC
Xerox Corporation
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