Composite Reversible Data Hiding Scheme for Secure Image Reconstruction

Abstract

AbstractIntense growth of information technologies has ameliorated the means of access to digital information. Digital image processing manages the digital content to store, share more efficiently with lesser time and space complexity. However, these approaches beach the privacy of digital content. Recent research focuses on protecting digital content from illegal use and distribution by hiding reversible data scheme to handle the risk of privacy violations for digital content. In this paper, a Composite Reversible data hiding (CRDH) scheme is proposed. CRDH used the Integer Wavelet Transform (HAAR transform) with the HH band's Eigenvalue decomposition. The proposed CRDH initially applied the IWT transformation on the cover image (CI) and parsed it into four subsequent frequency sub-bands namely LL, HL, LH, and HH. Confidential data of the proposed scheme are embedded by combining the HH band of the cover image's individual values with the encrypted Eigenvalues of the confidential data. The selection of casing art is such a manner where values lie within a range. The Confidential data image and HH band's frequency band are approximately identical; therefore, changing the individual values significantly does not trigger the quality of the confidential data image and the HH band's content. The proposed scheme's main objective is to develop a data hiding scheme that prevents the verification of digital information by maintaining a high rate of PSNR. The PSNR of the current technology is less than 50% for the entire available data set. The PSNR value indicates the image's visual quality, where the PSNR improves the higher image quality, so hiding data is necessary for the scheme that prevents authentication and maintaining a high rate of PSNR. The proposed method achieves this goal, gains a PSNR rate of over 50%, and reaches 57% for Tiffany and high SSIM which represent the quality of image.KeywordsDigital image processingInteger wavelet transformHAAR transformRevisable data hidingSecure image reconstructionPSNR ratioMSE