Review of Different Transforms used in Digital Image Watermarking

Tanwar, Lavi; Panda, Jeebananda

doi:10.1109/icpeices.2018.8897456

Cited by 6 publications

(6 citation statements)

References 43 publications

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“…Robust watermarks are required to remain in the watermarked image even after it has been manipulated by different attacks whereas the fragile watermarks are designed to be broken easily by image processing operations. In addition, digital watermarking technology can be classified by diverse domains, i.e., spatial domain, transformation domain and compression domain [23]. There are quantities of watermarking schemes [24]- [29] presented to safeguard the digital media, developed in different domains improving robustness and imperceptibility.…”

Section: Related Work a Digital Watermarkingmentioning

confidence: 99%

A Digital Watermarking Encryption Technique Based on FPGA Cloud Accelerator

2020

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Digital watermarking has the properties such as invisibility and anti-aggression, so the digital watermarking technology has been widely used in copyright protection, information hiding. The watermarking technology takes into account the invisibility and robustness of the watermark by controlling the embedding intensity and position of the watermark mainly in the transformation domain. In this paper, discrete cosine transform (DCT) is adopted to transform the given image from spatial domain to frequency domain for adding watermark information. In order to meet the demands of image watermarking batch processing and cloud processing in the future, this paper optimized the DCT algorithm and the data precision, and successfully deployed the designed accelerator kernel on the FPGA cloud platform to speed up the processing of watermarking. The implementation of data processing based on cloud platform is the development trend of big data era. The cloud platform adopted in this paper is based on the OpenCL heterogeneous architecture combining CPU and FPGA. The cloud-based implementation makes digital watermarking application highly extensible, widely shareable, and more secure. The whole system implements a series of complete cloud processes including image decoding, image preprocessing, watermark embedding, and watermarked image encoding. The watermarking algorithm is accelerated by the efficient parallel computing capabilities of FPGA. It can be seen that the result of acceleration is remarkable, providing the state-of-the-art throughput of 1.676 GBps and the highest processing speed of 937 FPS for 800 × 800 sized colorimage. INDEX TERMS Cloud services, parallel operation, integer DCT, data encryption and watermarking, heterogeneous architecture.

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Section: Related Work a Digital Watermarkingmentioning

confidence: 99%

A Digital Watermarking Encryption Technique Based on FPGA Cloud Accelerator

2020

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“…However they have high computational complexity. 29,30 DFT based watermarking methods are resistant to geometrical attacks such as rotation and scaling. On the other hand, they are sensitive to cropping and shearing attacks.…”

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“…Also, DFT based methods have high computational complexity, and are affected by round-off errors. 29,31 SVD based watermarking methods are resistant to geometrical attacks and have high energy compaction capability. However, they have high computational complexity for large-sized images.…”

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confidence: 99%

“…However, they have high computational complexity for large-sized images. 29,30 DWT based watermarking methods have excellent spatial-frequency localization property, and can identify the watermark embedding regions in the cover image to obtain imperceptibility and robustness. 32,33 Also, they are robust against the attacks like low pass filtering, median filtering, and compression.…”

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confidence: 99%

“…On the other hand, DWT based methods involve large compression time and, are less robust against various geometric attacks. [29][30][31] In this work, to obtain more robustness and high transparency by distributively embedding a watermark into a larger cover image, a new color channel multiplexing approach for DWT based robust color image watermarking method is proposed. In the proposed method, N × N × 3 sized original color image is separated into red, green, and blue color channels.…”

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A color channel multiplexing approach for robust discrete wavelet transform based image watermarking

Saritas

Öztürk

2022

Concurrency and Computation

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Summary Copyright protection of digital images has become a consequential issue in recent years. To prevent a breach of copyright for a color image, this article presents a novel discrete wavelet transform (DWT) based robust image watermarking method with a color channel multiplexing approach. In this proposed method, the original color image is separated into red, green, and blue color channels. One of these color channels is copied and a set of four channels is obtained. Then these channels are combined to obtain a new gray‐level cover image. 2‐level DWT is performed on the cover image. Arnold scrambled binary watermark image i embedded into the low‐frequency sub‐band of the cover image. 2‐level inverse DWT is performed to produce a gray‐level watermarked image. Then a demultiplexing process is performed by separating the gray‐level watermarked image into four color channels. The average values of the two copied color channels are calculated and then converted into a single‐color channel. Finally, the watermarked color image is get by merging three different color channels. To approve the performance of the presented method, various experimental tests have been performed and a benchmarking analysis has been conducted. The results show that the proposed method is robust against non‐linear and linear attacks while protecting watermarking imperceptibility.

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Image watermarking using soft computing techniques: A comprehensive survey

Singh

Srivastava

et al. 2020

Multimed Tools Appl

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Review of Different Transforms used in Digital Image Watermarking

Cited by 6 publications

References 43 publications

A Digital Watermarking Encryption Technique Based on FPGA Cloud Accelerator

A Digital Watermarking Encryption Technique Based on FPGA Cloud Accelerator

A color channel multiplexing approach for robust discrete wavelet transform based image watermarking

Image watermarking using soft computing techniques: A comprehensive survey

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