INTERNATIONAL JOURNAL OF PURE AND APPLIED RESEARCH IN ENGINEERING AND TECHNOLOGY A PATH FOR HORIZING YOUR INNOVATIVE WORK DIFFERENT IMAGE STEGANOGRAPHIC TECHNIQUES AND THEIR COMPARISION

Abstract Data hiding techniques have taken important role with the rapid growth of intensive transfer of multimedia content and secret communications. Steganography is the art of hiding information in ways that prevent detection. Steganography is the art and science of communicating in such a way that the presence of a message cannot be detected. It includes the concealment of information within computer files. As increasingly more material becomes available electronically, the influence of steganography on our lives will continue to grow. Many confidential information were leaked to a rival firm using steganographic tools that hide the information in music and picture files. The application of steganography is an important motivation for feature selection. Steganography means hiding a secret message (the embedded message) within a larger one (source cover) in such a way that an observer cannot detect the presence of contents of the hidden message. Many different carrier file formats can be used, but digital images are the most popular because of their frequency on the Internet. For hiding secret information in images, there exists a large variety of Steganography techniques some are more complex than others and all of them have respective strong and weak points. Different applications have different requirements of the Steganography technique used. This paper intends to give an overview of image Steganography, its uses and techniques