Comparative analysis of metrics for estimating the introduced distortions in images when injection digital watermarks in the frequency spectrum
С.В. Морковин, A. V. Filimonov, M. S. Rykshin, Olga Tsvetkova · AIP conference proceedings · 2021
The informatization of society and scientific and technological progress contribute to the continuous increase and rapid dissemination of video content on the global network. When distributing unique video information, the task of copyright protection arises, as well as the task of unambiguous identification of the source of the content. Therefore, the preservation of protected, stable and visually imperceptible signs with information about the sources of playback in the structure of the video stream is an urgent task. One way to introduce digital watermarks is to transform in the frequency domain of the image, inserting digital watermarks into the Fourier spectrum. Any changes in the frequency spectrum will inevitably lead to image distortion and the appearance of artifacts. In the process of research in the field of digital watermark implementation, there is a problem of assessing the degree of distortion introduced into the image.