New scrambling algorithm for hiding scanned documents
This paper introduces a new technique to hide scanned document in a digital image. It is a one-to-one matching between the pixels from the cover image to the pixel in scanned documents image. The proposed algorithm is an efficient computer-based steganographic method for embedding secret messages into images without producing noticeable changes is implemented. There is no need of referencing the original...
In this paper, a natural dual of an injective semimodule which was obtained by reversing the arrows in the definition of injective semimodule and replacing epimorphsims with monomorphisms was considered. These new objects are called “projective semimodules”. Key words: Projective semimodule, epimorphisim, left regular exact sequence, proper exact sequence.