Comparison of PNG&JPEG Format for LSB Steganography

with increasing number of inventions and innovations in technology which have become an integral part for humans thus, the urge for same amount in field of security and privacy is felt. The techniques likes cryptography, watermarking, steganography have been able to provide some relief. Steganography of all these have recently caught the highlight and constant research and development is taking place with steganography as centre point. This paper aim at contributing to towards steganography by analysing various mediums and formats on which it can be applied and most specifically compare between PNG and JPEG format for image based steganography.