International Journal of Computer Applications
The growth of high speed communication networks and that of the Internet, in particular, has increased the ease of information communication. Steganography is the art and science of writing hidden messages in such a way that no one apart from the sender and intended recipient even realizes there is a hidden message. Steganography is mainly used to embed important information within images for encryption. This approach is better than cryptography in secure data transfer. Original message is being hidden within a carrier like images or video in such a way that the change in image or video is not observable. So the hidden message is difficult to detect without retrieval.