Integration of GWO-LSSVM for time series predictive analysis

Mustaffa, Zuriani; Sulaiman, Mohd Herwan; Yusob, Bariah; Ernawan, Ferda

doi:10.1049/cp.2016.1360

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2021

2024

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Cited by 4 publications

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“…One type of data is a multimedia image. The multimedia image is created using a camera and various available editing software [5]- [11]. The image itself is then uploaded to the social media platform.…”

Section: Introductionmentioning

confidence: 99%

A Blind Robust Image Watermarking on Selected DCT Coefficients for Copyright Protection

Rahardi¹,

Abdulloh²,

Putra³

2022

IJACSA

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This paper proposes a blind and robust image watermarking technique using Discrete Cosine Transform (DCT) for copyright protection on color images called BRIW-DCT. Each channel of the host image is divided into non-overlapping image blocks with the size of 8×8 pixels. Each image block is transformed into a frequency domain using the DCT transformation. The watermark image is embedded into the host image by modifying the 11 th to the 15 th DCT coefficient. The experimental result shows that the watermarked image achieved a high PSNR value of 50.4489 dB and a high SSIM value of 0.9991. Furthermore, various attacks are performed on the watermarked image. BRIW-DCT can successfully recover the watermark image from the tampered image, which produces a high NC value of 0.7805 and a low BER value of 0.1126.

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Section: Introductionmentioning

confidence: 99%