A Robust DFT-based Digital Watermarking method for Image Authentication

Abstract

The advanced era of the digital world illuminates the necessity of the copyright protection and integrity of the authenticated user data, and emerged as a crucial issue to maintain communication channels, moreover transferring and handling the data in large databases. During passing the user data over an erroneous network, data may be tampered with or manipulated which could be maleficent for critical data of various firms such as defense and hospitals. Hence, to secure the data from malicious attacks image authentication is one such fundamental approach in multimedia programs. To accomplish the rapid protection, we have come up with a zero watermarking technique carrying the solution for the security of user data especially images facts without modifying it. This system utilizes Discrete Fourier Transform (DFT) using images data for feature extraction in conjunction with the standard singular value decomposition (SVD).  In this paper, by using user information a digital operation has been performed with the proposed work to create the individual identification code. In other words, the unique identification key intends to elicit the user details ensuring data security and pristine the data of the original image without tampering with it. Various experimental results on randomly selected images show in practical scenarios it is suitable for digital watermarking. This proposed technology resulted in an individual identification key and authentication of images data, integrity, and also manifest the strong robustness against various image maleficent attacks.