Abstract
The current paper presents a new digital watermarking method through bit replacement technology, which stores mul-tiple copies of the same data that is to be hidden in a scrambled form in the cover image. In this paper an indigenous approach is described for recovering the data from the damaged copies of the data under attack by applying a majority algorithm to find the closest twin of the embedded information. A new type of non-oblivious detection method is also proposed. The improvement in performance is supported through experimental results which show much enhancement in the visual and statistical invisibility of hidden data.
Highlights
Recent history has witnessed the rapid development in information technologies that has given an extended and easy access to digital information
The current paper presents a new digital watermarking method through bit replacement technology, which stores multiple copies of the same data that is to be hidden in a scrambled form in the cover image
The following results describe that the proposed algorithm is quite efficient for salt and pepper noise up to 40% and JPEG compression resulting in image quality distortion = 95%
Summary
Recent history has witnessed the rapid development in information technologies that has given an extended and easy access to digital information. In this paper we utilize the invisible watermarking technique. This is used in public information settings such as digital image libraries, museums, and art galleries and in defense communication where data security is of prime importance [4]. Copyright protection is achieved by robust watermarking [6] while image authentication is usually achieved by fragile watermarking techniques [7,8,9]. Robust watermarking technique ensures the quality of the hidden information by several protection algorithms. Invertible watermarking is a new process which enables the exact recovery of the original image upon extraction of the embedded information. Confidentiality means that only the entitled persons have access to the images. Availability is the capacity that an image is available to the entitled persons in the normal conditions of access and exercise [13]
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