초록 ▼

An identification code signal is impressed on a carrier to be identified (such as an electronic data signal or a physical medium) in a manner that permits the identification signal later to be discerned and the carrier thereby identified. The method and apparatus are characterized by robustness desp

An identification code signal is impressed on a carrier to be identified (such as an electronic data signal or a physical medium) in a manner that permits the identification signal later to be discerned and the carrier thereby identified. The method and apparatus are characterized by robustness despite degradation of the encoded carrier, and by permeation of the identification signal throughout the carrier.

대표청구항 ▼

[ I claim:] [1.] In a method of processing image data, the method including providing image processing equipment including a computer, a storage medium, and an image processing program stored in said medium and executing on said computer, said program permitting editing of images, and providing to s

[ I claim:] [1.] In a method of processing image data, the method including providing image processing equipment including a computer, a storage medium, and an image processing program stored in said medium and executing on said computer, said program permitting editing of images, and providing to said equipment data corresponding to an input image, an improvement comprising:discerning, from said input image data, an N-bit code signal steganographically encoded therein, where N is greater than or equal to two, said discerning including performing an algorithmic registration process to resolve an initially unknown variable needed to discern the code signal from the image, wherein the input image is an originally encoded image corrupted by a process selected from a group consisting of: scaling or rotation of the originally encoded image, wherein the multi-bit code signal is discerned no withstanding said corruption; andcontrolling operation of the equipment depending on the code signal discerned from the image.