Decoding hidden data from imagery
First Claim
Patent Images
1. A method of processing image data to recover hidden information, comprising:
- discerning, from said image data, a message hidden therein, said discerning including performing an algorithmic registration process to resolve an initially unknown variable needed to discern the message from the image data, said image data corresponding to an encoded image corrupted by a geometrical transformation process, wherein the message is discerned notwithstanding said geometrical image transformation.
9 Assignments
0 Petitions
Accused Products
Abstract
A digital image in which hidden information has been encoded, is processed to discern the hidden information. This processing can include identifying geometric distortions of the image (e.g., cropping, scaling, rotation), and compensating for such identified distortions.
-
Citations
20 Claims
-
1. A method of processing image data to recover hidden information, comprising:
discerning, from said image data, a message hidden therein, said discerning including performing an algorithmic registration process to resolve an initially unknown variable needed to discern the message from the image data, said image data corresponding to an encoded image corrupted by a geometrical transformation process, wherein the message is discerned notwithstanding said geometrical image transformation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
-
19. A method of processing image data to recover digital data hidden therein, comprising:
-
geometrically transforming said image data to correspond to reference image data; determining a difference pattern between the geometrically-transformed image data and said reference image data; and processing the difference pattern to decode digital data encoded therein. - View Dependent Claims (20)
-
Specification