Digital watermarking of geospatial data

Abstract

The rapid development of technology has made archival and transmission of multimedia information such as music, image, and video very convenient. However, it has also introduced new challenges related to privacy and security of data. Therefore, there is a compelling need for ensuring of authenticity and protection of ownership. For providing security of digital data, various techniques are used like encryption, decryption, cryptography, and digital watermarking. Digital watermarking is a technique of embedding selected user information into the digital content like image, video, speech, music. The watermarking algorithm should be able to detect intentional tampering of the original data and retain its integrity within the content even after various manipulation attacks like compression, enhancement, cropping, filtering.