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Image steganography is a technique for hiding the secret data in a carrier image. This paper proposes a novel n-right most bit replacement image steganography technique to hide the secret data in an image, where 1 ≤ n ≤ 4. The major objectives of the proposed technique are, (1) improving the peak signal to noise ratio (PSNR), (2) improving the embedding capacity (EC), (3) avoiding the fall of boundary...
This paper proposes an image steganography technique based on the principle of pixel overlapping to improve the embedding capacity (EC) and peak signal-to-noise ratio (PSNR). The proposed technique has two variants: (1) overlapped pixel value differencing with modulus function (OPVDMF), and (2) overlapped pixel value differencing (OPVD). Both the variants operate on pixel blocks of size 1 × 5. The...
With the increasing demand of technology, existing computer make use of graphics spaciously. Windows based operating system exposed to view the file disk file's directory graphically. Many applications provide graphical user interface, which it makes to easier to understand or interpret e.g. internet download manager shows the status of downloading a file graphically. We can understand message (information),...
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