A Study of Performance of Above Image Watermarking Approaches with Fuzzy Inference System

Electronics & communication Engineering

Digital media has led to extensive threat in terms of piracy of copyrighted material. Protecting integrity, validity and ownership of digital multimedia has become a major issue today. Reliable transmission of data over Internet and verification of originality of this data has become a challenge. The ways and means are required to restrict access to digital media and detect copyright violation. Consequently, digital watermarking has been widely studied as a component of Digital Rights Management (DRM) and protection mechanism in Intellectual Property Rights (IPR). This has encouraged development of digital watermarking and has emerged as effective means to address these problems. Digital watermarking involves embedding a pattern called as watermark in original media to mark ownership. The original media in which watermark is to be inserted is referred to as host media or cover media. The media after embedding watermark should convey same information as original media and is called as watermarked media. This watermark can be extracted from watermarked multimedia whenever required. Digital watermarking is an effective tool for protecting digital multimedia data from copyright infringement. It discourages unauthorized copying of data. The information extracted from watermarked multimedia is used to identify ownership.The digital watermark embedded in host media is a pattern of bits that helps to identify creator’s copyright information. It is perceptible or imperceptible identification code embedded in the host image which uniquely identifies its ownership. Invisible digital watermark is used for data hiding in steganography. Media in this research work refers to digital image as the focus is on developing digital image watermarking.

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