A real time watermarking of grayscale images without altering it's content

Sakthivel, S. M.; Sankar, A. Ravi

doi:10.1109/vlsi-sata.2015.7050469

Cited by 9 publications

(4 citation statements)

References 13 publications

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“…In this section, we compare the obtained results of the suggested system with results relative to the systems cited in the related work section. For this comparison, we consider the most typical and recent related papers [6,[18][19][20]. The latter represent almost the most important works addressing watermarking systems hardware design with interesting results.…”

Section: Discussion Of the Proposed Schemementioning

confidence: 99%

“…Ref [18] ------Ref [19] 29.07 0.847 Proposed algorithm 18.09 0.410 extracted and inserted watermarks has shown that our implemented system is robust against median-filter attacks (NC is greater than 0.7 for a window size coefficient less than or equal to [5x5]) and keeps the visual appearance of the image after watermarking. As illustrated in Table 6, in general, the proposed architecture gives relatively good results.…”

Section: Cropping 25%mentioning

confidence: 99%

“…The principal advantage of the proposed work was the operation frequency (more than 98.76 MHz). In [18], Sakthivel and S.M. et al put forward a VLSI architecture of a digital image watermarking system.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

FPGA Implementation of Digital Images Watermarking System Based on Discrete Haar Wavelet Transform

Hajjaji

Gafsi

Abdelali

et al. 2019

Security and Communication Networks

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In this paper we propose a novel and efficient hardware implementation of an image watermarking system based on the Haar Discrete Wavelet Transform (DWT). DWT is used in image watermarking to hide secret pieces of information into a digital content with a good robustness. The main advantage of Haar DWT is the frequencies separation into four subbands (LL, LH, HL, and HH) which can be treated independently. This permits ensuring a better compromise between robustness and visibility factors. A Field Programmable Gate Array (FPGA) that is based on a very large scale integration architecture of the watermarking algorithm is developed to accelerate media authentication. A hardware cosimulation strategy using the Matlab-Xilinx system generator (XSG) was applied to prove the validity of the suggested implementation. The hardware cosimulation results show the effectiveness of the developed architecture in terms of visibility and robustness against several attacks. The proposed hardware system presents also a high performance in terms of the operating speed.

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Section: Discussion Of the Proposed Schemementioning

confidence: 99%

Section: Cropping 25%mentioning

confidence: 99%

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FPGA Implementation of Digital Images Watermarking System Based on Discrete Haar Wavelet Transform

Hajjaji

Gafsi

Abdelali

et al. 2019

Security and Communication Networks

View full text Add to dashboard Cite

show abstract

“…Especially digital image watermarking techniques have been widely researched in recent years. There are two kinds of digital image watermarking techniques [1]: spatial domain technique [2] and frequency domain technique [3] [4]. The simplest spatial domain technique method is the least significant bit (LSB) algorithm [5], in which the watermark information is embedded into the LSB or multiple bit layers of images.…”

Section: Introductionmentioning

confidence: 99%