Reversible Data Hiding using Increased Peak Histogram
T C Thanuja, R. Nagaraj, Meena Kumari · 2008
In this paper, we present a reversible watermarking algorithm which provides higher embedding capacity and higher PSNR value compared to the existing algorithms. In the proposed algorithm, we utilize a peak point of image histogram and increase the height of the peak by transferring the pixels from the neighbouring gray values to achieve the higher embedding capacity.