Fragile Watermark in Medical Image Based on Prime Number Distribution Theory

Wei, Xiuyuan; Zhang, Wenyin; Yang, Bo; Wang, Jiuru; Xia, Ziyun

doi:10.1007/s10278-021-00524-4

Cited by 6 publications

(1 citation statement)

References 32 publications

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“…and high-security requirements. Therefore, from the perspective of improving imperceptibility and embedding ability, this paper uses the RC4 encryption algorithm to ensure the security of watermark embedding, uses the distribution of prime numbers within 0-255 to realize watermark embedding [13] [14], and proposes a method based on prime numbers A distribution-theoretic fragile watermarking scheme for color images. The experimental results show that this method decomposes the RGB channel of the color image and embeds three equally large binary watermark images at one time, which can realize large-capacity watermark information embedding and has strong imperceptibility.…”

Section: Introductionmentioning

confidence: 99%

Large-capacity fragile watermarking scheme for color images based on prime number distribution theory

Hao,

Xie,

et al. 2023

SIViP

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Color image digital watermarking technology is an important security protection technology to realize secret communication and content authentication. To better achieve the purpose of color image copyright protection, this paper proposes three watermark embedding schemes for color images based on the prime number distribution theory, embedding the RGB three channels of the color carrier image into binary watermark images of the same size to realize large-capacity watermark embedding. The scheme uses the Rivest Cipher 4 (RC4) encryption algorithm to securely encrypt the image information. During the watermark embedding process, the appropriate pixel value is selected for pixel replacement according to the division of the prime number set within 0-255. The experimental results show that the PSNR values of the three schemes are all greater than 40dB, and the NC values are all close to 1. Compared with the existing algorithms, the scheme proposed in this paper has a large embedding capacity, which can resist common image processing attacks while ensuring good imperceptibility of the watermark, and has good tamper detection and localization capabilities.

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Section: Introductionmentioning

confidence: 99%