A Robust Image Watermarking Technique With an Optimal DCT-Psychovisual Threshold

Ernawan, Ferda; Kabir, Muhammad Nomani

doi:10.1109/access.2018.2819424

Cited by 114 publications

(101 citation statements)

References 24 publications

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“…As per paper [1] proposed a robust blind image watermarking scheme with the use of a combination of DCT, SVD, and DWT transform domain with using a logistic chaotic map and least-square curve fitting. As per paper [2] presents a digital watermarking technique using DCT and psycho visual threshold which achieves good imperceptibility and robustness for copyright protection.…”

Section: Literature Reviewmentioning

confidence: 99%

Design and Development of Semi-Blind Image Steganography Algorithm using DCT for Securing Text Documents which Resist against JPEG Compression

Mehta*,

Bhatti

2019

IJEAT

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Semi-blind Image Steganography algorithm development proposed by using DC coefficients of DCT technique. Create KEY vector and potential block matrix while embedding the secret data. Embed one secret character in one DCT block using the DC value of each block. Convert DC coefficient to binary representation and store positions for secret data. Apply JPEG compression on Stego Image. While extracting the secret data from compressed Stego Image, with the use of a KEY vector extracts secret data bits from potential blocks. After creating simulation, perform some test on a standard dataset and compare the results with target results

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Section: Literature Reviewmentioning

confidence: 99%

Design and Development of Semi-Blind Image Steganography Algorithm using DCT for Securing Text Documents which Resist against JPEG Compression

Mehta*,

Bhatti

2019

IJEAT

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“…Como as altas frequências têm um grande impacto visual e as baixas frequências apresentam fraquezas a diferentes ataques, a inserção da marca d'águá e feita nas frequências médias [1], [20], mostradas naárea hachurada da Fig. 1 (as posições de um bloco da DCT em que a marcaé inserida estão hachuradas, sendo denominadas de sub-bloco).…”

Section: Algoritmo Propostounclassified

“…sendo µ O e µ W a média da imagem original e da imagem com marca d'água, respectivamente, σ 2 O e σ 2 W as variâncias das duas imagens, ρ OW a covariância entre C O e C W , α e β são constantes, sendo α = 2, 55 e β = 7, 65 [20].…”

Section: A Relação Sinal Ruído De Picounclassified

“…Neste trabalho, adotaremos df = 0, 35, o que implica em um PSNR próximo de 50 dB e um SIMM próximo de 0,998. Os valores de PSNR e SSIM para o método proposto (com df = 0, 35) e para os métodos aprresentados em [20] e [21] são comparados na Tabela III. Os resultados mostrados nesta tabela foram obtidos com imagens de tamanho 512 × 512 píxeis e imagem de marca d'água W de tamanho 32 × 32 bits [20], [21].…”

Section: A Relação Sinal Ruído De Picounclassified

“…Os valores de PSNR e SSIM para o método proposto (com df = 0, 35) e para os métodos aprresentados em [20] e [21] são comparados na Tabela III. Os resultados mostrados nesta tabela foram obtidos com imagens de tamanho 512 × 512 píxeis e imagem de marca d'água W de tamanho 32 × 32 bits [20], [21]. Observa-se que o método proposto com df = 0, 35 apresenta resultados melhores que os obtidos em [20]…”

Section: A Relação Sinal Ruído De Picounclassified

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Sistema de Marca d'água em Imagens Utilizando Sequências Caóticas

Morales¹,

Chaves²,

Pimentel³

2019

Anais De XXXVII Simpósio Brasileiro De Telecomunicações E Processamento De Sinais

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Resumo-Este artigo descreve um esquema de marca d'água robusto. Os bits inseridos na imagem são os bits de paridade de um código corretor de erro cuja mensagemé formada pela combinação dos bits de marca d'água com bits caóticos. Uma estratégia que propicia robustez e segurançaà marca d'água. A inserção se dá em frequências específicas da transformada discreta do cosseno da imagem. A robustez do método propostó e testada para vários ataques utilizados em processamentos de sinais e ataques geométricos. Comparações com resultados da literatura revelam que a técnica proposta apresenta maior imperceptibilidade e robustez. Palavras-Chave-Marca d'água robusta, códigos corretores de erro, mapas caóticos, ataques geométricos.

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A multiple transform based approach for robust and blind image copyright protection

Sinhal

Ansari

2022

Concurrency and Computation

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Digital image sharing and utilization have increasing in a speedy manner at present time. Therefore, copyright/ownership protection for digital images has been an essential requirement in the modern world of digital advancements. This work offers an image watermarking scheme to provide ownership/copyright verification in an effective manner with no conciliation with imperceptibility. The image is first partitioned into small size blocks. During embedding, a multilevel transform domain-based framework is employed to embed the watermark information into blocks. Additionally, the block selection process is made randomize (key-based) to offer high security against illegal manipulations/access. Before embedding, the watermark is encrypted using the Arnold transform-based approach for additional security. The scheme has blind nature, high imperceptibility and it is robust enough to endure a different variety of processing attacks. Experimental results on different images illustrate that the proposed watermarking approach has high imperceptibility, high robustness, decent embedding capacity, and significant security features. The relative comparison with the existing robust watermarking schemes (having the same payload)shows the superiority of the proposed work over existing methods presented in the recent past.

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A Robust Image Watermarking Technique With an Optimal DCT-Psychovisual Threshold

Cited by 114 publications

References 24 publications

Design and Development of Semi-Blind Image Steganography Algorithm using DCT for Securing Text Documents which Resist against JPEG Compression

Design and Development of Semi-Blind Image Steganography Algorithm using DCT for Securing Text Documents which Resist against JPEG Compression

Sistema de Marca d'água em Imagens Utilizando Sequências Caóticas

A multiple transform based approach for robust and blind image copyright protection

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