StirMark using Octave
Anandha Gopalan and Francis Hoang
Abstract:
Digital watermarking has become very important for copyright protection
and authentication. Broad claims have been made about the `robustness' of
various digital watermarking method. Unfortunately the criteria as well as
the pictures used to demonstrate these claims vary from one system to the
other and recent attacks show that the robustness criteria used until now
are inadequate. This paper shows that majority of attacks implemented in
the Stirmark package can be done in a quick and easy way using Octave.
Given a watermarked image, StirMark will apply several transformations
with various parameters then produce an output image that can be tested
using benchmark to judge the robustness of image watermarking systems.