DFT processing for Image Data Hiding
Debnath Bhattacharyya, Ronnie D. Caytiles, Yvette E. Gelogo, Mi-Jeon Yang, Tai-hoon Kim · Proceedings of KIIT Summer Conference · 2011
The discrete Fourier transform (DFT) is a specific kind of discrete transform, used in Fourier analysis. It transforms one function into another, which is called the frequency domain representation, or simply the DFT, of the original function. In this paper a novel technique, Discrete Fourier Transformation based Image Authentication has been proposed to authenticate an image and with its own application one can also transmit secret message or image over the network.