An Analysis of the Effectiveness of Various Techniques in Reversible Watermarking in the Field of Image Processing and Biomedical Imaging

one of the most favored way to lessen data complexity is to conceal details or redundant information. Watermarking is a technique which consists in inserting a robust and imperceptible brand in a host image, in order to defend it against illegal plagiarism. Being reversible, the watermarking information like numbers, texts and images can be embedded digital media formats such as Audio, Video and Image. Fragile watermarking techniques i.e. reversible watermarking is one of the most widely used watermarking techniques. This paper represents the work carried on the need of enhancement in performance of reversible watermarking technique that presents the change in fundamental algorithm of this technique. Prediction Error Expansion (PEE) for computing threshold value is tailored with Otsu's method which enables equable augmentation in performance measures like PSNR. The PSNR values are checked to evaluate the proposed watermarking technique