Robust Method for Protecting Electronic Document on Waterway Transport with Steganographic Means by Embedding Digital Watermarks into Images

摘要

Waterway transport, depending on the availability of safe controls, navigation and communication systems, is obliged to pay special attention to the technological updating of industry, the implementation of high-performance automation systems, the use of innovative technologies. To store and transfer such vast amounts of information relevant automation system is required, which allows making the entire procedure of processing the documents of various kinds safe. Thus, the development of information technologies in transport companies and, in particular, on ships is directly related to the establishment of information processing systems. The scope of this paper is the development and analysis of algorithms for implementation of the digital watermark (DWM) on the basis of the brightness modulation in blocks of graphic documents, allowing at the same time providing covert insertion of any sequence of a given amount of information and authentication of the image, in which Digital Watermark was incorporated. To enhance the robustness of embedded digital watermark attachments, it is required to apply the same transformations in compression of graphic documents in stegoalgorithm like in the compression algorithms for these files.