Journal ArticleDOI
Efficient reversible data hiding in encrypted images based on multi-stage integer wavelet transform
Guangyao Ma,Jianjun Wang +1 more
TLDR
Experimental results demonstrate that the proposed algorithm significantly improves the embedding capacity and the reconstructed image quality compared with some existing state-of-the-art schemes.Abstract:
Recently, reversible data hiding in encrypted images has drawn increasing interest. We theoretically analyze the feasibility of reversibly hiding secret data into encrypted images using integer transform and propose an efficient reversible data hiding scheme in encrypted images based on integer wavelet transform (IWT) in this paper. The cover image is first encrypted. Then the encrypted image is decomposed with IWT to get coefficients of four sub-bands. Location maps are generated according to the most significant bit-planes of high frequency coefficients. The location maps are further lossless compressed and embedded with secret data into the most significant bits of high frequency wavelet coefficients by bits replacement. Ratio correction (RC) is applied in the pre-processing phase to make sure the efficiency and validity of the proposed scheme. To achieve higher capacity, multi-stage IWT and multi-level embedding are performed. In addition, we then propose an adaptive correction (AC) algorithm which allows the scheme to accommodate more payload. On the receiving side, a recipient can correctly extract embedded secret message with data hiding key. The original image can be perfectly recovered with both the data hiding key and the encryption key. Experimental results demonstrate that the proposed algorithm significantly improves the embedding capacity and the reconstructed image quality compared with some existing state-of-the-art schemes.read more
Citations
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Journal ArticleDOI
Digital steganography and watermarking for digital images: a review of current research directions
TL;DR: An overview of promising research in the specified area is provided and an analysis of identified problems in the field of digital steganography and digital watermarking is concluded.
Journal ArticleDOI
Reversible data hiding based on multiple histograms modification and deep neural networks
TL;DR: Zhang et al. as discussed by the authors proposed a deep neural networks (DNN) based method for dynamical multiple histograms generation, which is able to establish the histograms with different sizes for a better redundancy exploitation.
Journal ArticleDOI
Digital image steganography: A literature survey
TL;DR: Steganography is the art of concealing information in a cover media in such a way that the presence of the information is unknown as discussed by the authors , which has been driven to the frontrunner of present security systems by the amazing development in computational power, the rise in security consciousness.
Journal ArticleDOI
Algorithm of error-free information embedding into the DCT domain of digital images based on the QIM method using adaptive masking of distortions
TL;DR: This paper proposes a new algorithm for hiding data in the frequency domain of digital images using the discrete cosine transform, which uses quantization index modulation (QIM) as the basic embedding operation.
Journal ArticleDOI
An efficient watermarking algorithm for medical images
Ali Al-Haj,Heba Abdel-Nabi +1 more
TL;DR: A novel and efficient algorithm is proposed which provides security services for transmitted medical images in tele-medicine applications and employs joint encryption/watermarking procedures to provide the required security services, as well as to provide control access privileges at the receiving side.
References
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Reversible data embedding using a difference expansion
TL;DR: The redundancy in digital images is explored to achieve very high embedding capacity, and keep the distortion low, in a novel reversible data-embedding method for digital images.
Journal ArticleDOI
Reversible data hiding
TL;DR: It is proved analytically and shown experimentally that the peak signal-to-noise ratio of the marked image generated by this method versus the original image is guaranteed to be above 48 dB, which is much higher than that of all reversible data hiding techniques reported in the literature.
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Proceedings ArticleDOI
Reversible data hiding
TL;DR: A prediction-based conditional entropy coder which utilizes static portions of the host as side-information improves the compression efficiency, and thus the lossless data embedding capacity.
Journal ArticleDOI
Reversible Data Hiding in Encrypted Image
TL;DR: This work proposes a novel reversible data hiding scheme for encrypted image, where the additional data can be embedded into the image by modifying a small proportion of encrypted data.
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