Method for image encoding

Details Method for image encoding Method for image encoding

1999-05-24

2000-06-06

Johns, Andrew W.

Image analysis

Applications

380 54, G06K 900, G06T 900

Patent

active

060728884

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 changes are desirably effected in groups, e.g., pixel groupings 5-10 pixels in height and width, and in a manner calculated to keep the changes relatively inconspicuous.

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