Hadamard defense mechanisms for rice grain image privacy

Abstract This paper proposes a novel Hadamard Transformation-based image defense methodology tailored for rice grain images, targeting enhanced security and computational efficiency. The pipeline includes halftoning, share generation, secret sharing via Hadamard transformation, and quality-enhanced...

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Bibliographic Details
Main Authors: D. Suma, V. G. Narendra, M. Raviraja Holla, M. Darshan Holla
Format: Article
Language:English
Published: Springer 2025-07-01
Series:Discover Applied Sciences
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Online Access:https://doi.org/10.1007/s42452-025-07340-3
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Summary:Abstract This paper proposes a novel Hadamard Transformation-based image defense methodology tailored for rice grain images, targeting enhanced security and computational efficiency. The pipeline includes halftoning, share generation, secret sharing via Hadamard transformation, and quality-enhanced reconstruction. Privacy-sensitive regions are isolated and resized to reduce processing overhead. The method is evaluated using metrics such as pixel-wise difference, entropy, histogram analysis, radar charts (PSNR/SSIM), and featural integrity, and compared with benchmark techniques. The proposed model achieves 97.01% reconstruction accuracy, 45 ms processing time, 60 KB memory usage, and demonstrates strong robustness (score: 0.89), scalability (60 images/s), and energy efficiency (0.035 J/image), outperforming existing approaches in security and performance.
ISSN:3004-9261