80 страниц. 2014 год. LAP Lambert Academic Publishing The rapid growths of the computer technologies have been increased over the last half ?century in terms of the amount and complexity of data. Also, access to the data has become ?much easier due to the rapid growth of the networks such as the Internet. Furthermore, most of ?the people use images to represent information and it is transferred throughout the Internet. Digital ?watermarking techniques are used to protect the copyrights of multimedia data by ?embedding secret information inside them, for example, embedding in images, audios, or videos.