REVERSIBLE IMAGE DATA HIDING WITH CONTRAST ENHANCEMENT

Abstract

A novel approach to digital image processing is described in this research as reversible data hiding (RDH). Keeping the PSNR number high isn't given much weight in the proposed strategy. Conversely, it enhances the visual appeal of a primary image by drawing more attention to the contrasts between its constituent layers. The two largest histogram bins can hold data. It becomes more simpler to apply the approach to equalize the histogram repeatedly in this way. There is additional data in the host image in addition to the message bits. Thanks to this, we can get the original photo back to its original state. Both sets of images prove that the strategy is effective. Using reversible data hiding (RDH) technology to enhance contrast appears to be a first. Even after adding several message bits to images to make them more readable, the study found that the images maintained their visual integrity. When compared to three other popular MATLAB methods, this one significantly boosts image contrast.