A REVIEW ON VARIOUS TECHNIQUES FOR DIGITAL IMAGE WATERMARKING.

In today’s Era, message transmissions over the internet have protection problems of the digital data. Hence, protection of secret messages during transmission becomes a difficult subject. Digital watermarking is provide protection of digital information or identifying information against illegitimate exploitations and allocations. Watermarking is a technology to guarantee and make possible data certification, security and copyright defense of the information. The intend of watermarking is to consist of hidden data in multimedia information to ensure security examination. It would be then probable to progress the surrounded message, even if the information was distorted by one or more non-dangerous attacks. In this paper, we present the various types of watermarking techniques and application region where water making technique required. Also a survey on the some new work is done in image watermarking field.