Jianwei Zhang1, Ze Qin1, Shunfeng Wang1, *
Journal of Cyber Security, Vol.2, No.1, pp. 25-36, 2020, DOI:10.32604/jcs.2020.06429
Abstract Digital images have been applied to various areas such as evidence in courts.
However, it always suffers from noise by criminals. This type of computer network
security has become a hot issue that can’t be ignored. In this paper, we focus on noise
removal so as to provide guarantees for computer network security. Firstly, we introduce
a well-known denoising method called Expected Patch Log Likelihood (EPLL) with
Gaussian Mixture Model as its prior. This method achieves exciting results in noise
removal. However, there remain problems to be solved such as preserving the edge and
meaningful… More >
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