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Transform Domain Techniques for Image Steganography
Abstract
Recent advancement of multimedia technology has posed serious challenges to copyright protection, ownership, and integrity of digital data. This has made information security techniques a vital issue. Cryptography, Steganography, and Watermarking are three major techniques for securing information and ensuring copyright ownership. This chapter presents an overview of transform domain techniques for image steganography. The authors discuss the characteristics and applications of image steganography and briefly review Discrete Cosine and Wavelet transform-based image steganography techniques. They also discuss the various metrics that have been used to assess the performance of steganography techniques and shed light on the future of steganography.
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