Study of DCT Watermarking Methods |
In digital watermarking, information are hiding into audio, image and video files with the main goal to be invisible at the human visual or hearing system and robust to some piracy attacks. Nowadays many technics of watermarking has been developed and are based on spatial domain (Least Significant Bit (LSB)) and transform domain (Discrete Cosine Transform (DCT) and Discrete Wavelet Transform (DWT)). The basic DCT watermarking technics has been implemented in this project to study its strength and weaknesses and moreover how it is possible to improve a watermarking process and what does it cost.
Buchaillet V, Ambroze MA