Multimedia watermarking techniques with low distortion

Abstract

System and methodologies are provided herein for low-distortion image watermarking. Parity relationships between multiple pixels and / or regions of an image can be leveraged as described herein to reduce the amount of toggling required to embed a watermark in an image, thereby increasing watermark efficiency and reducing visual artifacts introduced in a watermarked image. Various algorithms for leveraging parity relationships are described herein, including a Block-Overlapping Parity Check (BOPC) algorithm, a Champagne Pyramid Parity Check (CPPC) algorithm, and a Tree-Based Parity Check (TBPC)algorithm.

Description

[0001] cross reference [0002] This application claims the benefit of US Provisional Patent Application Serial No. 60 / 907,513, filed April 4, 2007, entitled "MULTIMEDIAWATERMARKING TECHNIQUES WITH LOW DISTORTION." technical field [0003] The present disclosure relates generally to image processing, and more particularly to techniques for embedding watermark information into images. Background technique [0004] With the increasing popularity of multimedia applications and the advancement of technology related to the Internet and wireless technology, there has been a rapid growth in the use of digital media such as images. For example, many images are now accessible via the World Wide Web. However, because of the accessibility of these digital images, they can be easily downloaded and used by unauthorized users for unintended purposes. As a result, digital watermarking techniques are commonly used to prove ownership and authenticity of digital media by hiding information,...

AI Technical Summary

Problems solved by technology

However, most existing data hiding algorithms cannot be easily applied to embed data into these and / or similar halftone signals

Images