Chaotic based secure watermarking approach for medical images

Thakur, Sriti; Singh, Amit Kumar; Ghrera, Satya Prakash; Mohan, Anand

doi:10.1007/s11042-018-6691-0

Cited by 70 publications

(19 citation statements)

References 29 publications

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“…The satisfactory results are found by the experiment. A non-sub-sampled contourlet transform (NSCT), redundant DWT (RDWT), and SVD based medical image watermarking method is developed for improving robustness and imperceptibility [27]. The watermarked medical host image is encrypted by two dimensional (2D) logistic map-based chaotic map for enhancing security.…”

Section: Related Workmentioning

confidence: 99%

Implementation of Secured and Robust DFT-Based Image Watermark Through Hybridization with Decomposition Algorithm

Begum

Uddin

2021

SN COMPUT. SCI.

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Robust as well as secure image watermarking is capable of providing a promising solution in many copyright protection applications. In this paper, an improved image watermarking scheme based on DFT with a decomposition algorithm is proposed. First, two dimensional (2D) Fast Fourier Transform (FFT) is applied to the host image, and then its singular value decomposition (SVD) is performed. Second, the watermark image is encrypted with a chaotic map for ensuring security against unauthorized detection, and then its 2D FFT and SVD are also performed. Third, the singular values of the watermark image are embedded into the singular values of the host image. The hybridization of DFT with SVD ensures the increasing performance of the watermarking system from the perspectives of visual distortion and robustness. Experimental results show that our proposed method is highly robust and also imperceptible with a large watermark size and increased security than the classical DFT-based methods.

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Section: Related Workmentioning

confidence: 99%

Implementation of Secured and Robust DFT-Based Image Watermark Through Hybridization with Decomposition Algorithm

Begum

Uddin

2021

SN COMPUT. SCI.

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“…Usage of DWT increases computational complexity of the technique. Therefore, in order to overcome this short coming of DWT various other transforms such as RDWT [37,38], NSCT [32,36,39] which possess shift invariance property can be used to reduce the computational complexity . However, false positive problem which tends to occur with usage of SVD transform needs to be eliminated.…”

Section: Main Significance Of the Proposed Workmentioning

confidence: 99%

“…Though it appears that developed scheme attains low imperceptibility but since it uses RSA algorithm which increases security of the developed scheme. In [32] a watermarking technique is discussed where two watermarks are simultaneously embedded inside a medical host image by using combination of non-subsampled contourlet transform (NSCT) -RDWT -SVD transforms. For providing more security to the technique chaotic encryption is employed.…”

Section: Introductionmentioning

confidence: 99%

A Novel Dual Image Watermarking Technique Using Homomorphic Transform and DWT

Khare

Srivastava

2020

Journal of Intelligent Systems

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In this paper a new technique of dual image watermarking is proposed for protection of ownership rights which utilizes salient properties of homomorphic transform (HT), discrete wavelet transform (DWT), singular value decomposition (SVD) and Arnold transform (AT). In embedding algorithm host image is splitted into reflectance and illumination components using HT, DWT is further applied to the reflectance component resulting in frequency subbands (HL and LH) which are transformed by SVD. Two image watermarks are selected for embedding process whereas security of proposed algorithm is strengthen by performing scrambling of second watermark through AT. Both watermarks are transformed with DWT and SVD. Singular values (SVs) of both transformed watermark are embedded into SVs of host image. Simulation results clearly signifies for high robustness and imperceptibility of proposed algorithm as it is examined under various attacks. Superiority of proposed technique is illustrated by comparing it with other reported methods.

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“…In addition, images were processed on a channel basis and two different chaotic maps called Arnold and Tent maps were used for encryption. Thakur et al proposed a chaotic-based safe medical image watermarking approach in their study [32]. Their proposed method used non-subsampled contourlet transform (NSCT), redundant discrete wavelet transform (RDWT) and singular value decomposition (SVD) for imperceptibility and robustness.…”

Section: Introductionmentioning

confidence: 99%

Nested Two-Layer RGB Based Reversible Image Steganography Method

Durdu

2021

ITC

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In this study, a new reversible image steganography method based on Red-Green-Blue (RGB) which hides thecolored image into the colored images in two layers nested is proposed. The proposed method hides the 24-bitimage to be hidden by hiding two layers of data firstly in the resized version of the cover image with the LSBmethod, and then hides the resized cover image to the original cover image with the 4-bit method. The proposedmethod offers a secure communication environment as it hides the hidden image in two layers. When thirdparties extract data by using the LSB method, they only access the resized version of the cover image. The 4-bitmethod divides the image to be hidden into 8-bit segments. While the first 4 bits, which are the most importantbits of 8-bit data, are hidden directly, 4 bits that can be neglected with less significance are completed by roundingat approximate value through the method function. In this way, since the 8-bit data is reduced to 4-bits, themethod performs lossy hiding, but doubles the hiding capacity. Peak signal to noise ratio (PSNR), structuralsimilarity quality criterion (SSIM) and chi-square steganalysis method, which are frequently used in the literature,are used to measure the immunity level of the proposed method. When it is concealed at the same ratewith the LSB method and the proposed method, a higher measurement value is obtained in the PSNR imagecriterion, which is 1.2 dB, SSIM 0.0025, BER 0.0129 and NCC image criterion 0.00027. In additional, it wasshown that the proposed method achieved more successful results in chi-square steganalysis and histogramtests compared to the traditional LSB method.

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Chaotic based secure watermarking approach for medical images

Cited by 70 publications

References 29 publications

Implementation of Secured and Robust DFT-Based Image Watermark Through Hybridization with Decomposition Algorithm

Implementation of Secured and Robust DFT-Based Image Watermark Through Hybridization with Decomposition Algorithm

A Novel Dual Image Watermarking Technique Using Homomorphic Transform and DWT

Nested Two-Layer RGB Based Reversible Image Steganography Method

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