Data hiding based on neighborhood attributes

Details Data hiding based on neighborhood attributes Data hiding based on neighborhood attributes

1999-11-03

2000-10-24

Johns, Andrew W.

Image analysis

Applications

380 54, G06K 900, G06T 900

Patent

active

061378925

ABSTRACT:
Plural-bit data is encoded in an image without leaving apparent evidence of image alteration. The image is represented by data elements (e.g., pixels) whose values are changed to effect the encoding. The particular data elements to be changed are selected not on their individual values, but rather on an attribute of a neighboring group of data elements.

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