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Reversible Secure Steganography Based On Lifting Transform

Vasanthi J, Ranjith Balakrishnan

An enhancement of data protection system for secret communication using reserve room in encrypted images based on texture analysis with lifting wavelet is proposed here. The reserving space to conceal text messages was the reserve space. RSA asymmetric key encryption is used here to encrypt secret text before hiding for increasing the security. Adaptive least significant bit algorithm utilized for concealing the encrypted text into the effectively done in an image spectral domain and chaos crypto system used to encrypt the image frequency components except reserved space. An experimental result shows that used methodologies generated minimal error with high PSNR rate at various data hiding capacity.