US 2002/0054692 A1 · Image processing system

Abstract

It is an object of this invention to provide an image processing system capable of detecting at a high speed whether copy-protected information is embedded in image data. For this purpose, the image processing system that practices this invention uses image data having a low resolution in detecting the embedded position of the copy-protected information. When the position is detected, the neighboring image is extracted in units of blocks on the basis of the pattern size and compared with the pattern image. If a specific pattern is detected as the result of comparison, the image is regarded as an original to be copy-protected, and appropriate processing is executed.

Claims40

Dependent claims

An image processing apparatus characterized by comprising:

a determiner for determining whether image data contains specific information for at least one block extracted from the image data;
and
an image processor for executing predetermined processing for the image data which is determined by said determiner to contain the specific information.

Dependencies are inferred from the claim text.

Facts

Application

09/768,331Filed 25 Jan 2001

Priority

JP 2000-02228531 Jan 2000

Published

9 May 2002

Term ends

Not estimatedThe source records don’t support an estimate.

Classification10 codes

G06T 1/005
Image watermarking: robust watermarking, e.g. average attack or collusion attack resistant
H04N 1/00843
Determining the necessity for prevention: based on recognising a copy prohibited original, e.g. a banknote
H04N 1/00848
Based on recognising a copy prohibited original, e.g. a banknote: by detecting a particular original
H04N 1/00859
Preventive measures: issuing an alarm or the like

Image processing system

Life of this patent

Image processing system

Life of this patent

Abstract

Claims40