Survey on Digital Watermarking

With the rapid development and wide use of the Internet, information transmission faces a big confront of security. People need a protected and safe way to spread information. Digital watermarking is a procedure of data hiding, which provide security of data. The Digital watermarking method provides the quick and inexpensive distribution of digital information over the Internet. This technique provides new ways of ensuring the adequate security of copyright holders in the rational property dispersion process. The property of digital watermarking images allows insertion of additional data in the image without altering the value of the image. This message is secret in unused visual space in the image and stays below the human visible threshold for the image. This paper presents a watermarking technique which least significant bit (LSB), its steps and its process with matlab images. The benefits of the LSB are its simplicity to embed the bits of the message directly into the LSB plane of cover-image and many techniques using these methods.