A Study on Image Steganography Approaches in Digital Images
Rubi Yadav, Deepak Singh Tomar, R. K. Baghel · 2014
Steganography is the process of embedding information in a carrier in order to protect the secrecy in the terms of text, music, video and images. Steganography is the art of hiding information. Normally information are embedded in images it remain unvisible in the majority of commercial image databases, such as Getty (gettyimages.ie) or iStock Photo (istockphoto.com). Thus the advantage of using steganographic techniques for information hiding is that the existgence is resistant to detection and consequently to tampering. Robustness is a characteristic of critical importance. In this paper, we present the key concepts and the representation of steganography area is graphically & mathematically shown. Distinctions between steganography, cryptography and watermarking in terms of technique and intent are summarized. The common approaches used for embedding information into images are shown in detail. Methods applied for hiding messages are also explored. Steganography tools are highlighted.