Many reversible watermarking solutions have been proposed since 1996: spread-spectrum approaches, circular
interpretation on histogram approaches, lossless compression approaches, expansion approaches and histogram
approaches. In this paper, we propose a solution whose embedding capacity goes beyond all those reversible
schemes. For certain images, the reach payload of the proposed method is over 2 bpp. This solution is an
improvement of the Coltuc reversible watermarking approach published in ICIP'2007.