WATERMARKING PROTECTING ONE'S WORK FROM BEING HIJACKED

WATERMARKING PROTECTING ONE'S WORK FROM BEING HIJACKED

ABSTRACT

    The recent growth of internet usage and networking multimedia systems has necessitated the need for the protection of digital media. This is especially critical for the protection and enforcement of intellectual property rights. Copyright protection involves the authentication of object (text/image/video) ownership, and the identification of illegal copies of a (possibly forged/fake) object. Techniques are needed to prevent the copying, forgery and unauthorized distribution of images and video sequences on a public network puts them at risk of theft and alteration.
    This paper presents the characteristics, implementation methods and various applications of Watermark.It also deals with various types of Watermark attacks. It emphasizes the need for watermarking to protect one’s work from being hijacked. The need for watermarking emanates from the following: A designer has created an image and wants to make it available on the network. When unauthorized copies or forgeries of the image appear elsewhere on the network, the designer needs to prove his ownership of the image. One also needs to determine if and by how much the image has been changed from the original. This way the person can prove ownership by illustrating the difference between the forged image and the original.

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