文章基本信息

标题：Image denosing in underwater acoustic noise using discrete wavelet transform with different noise level estimation
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作者：Yasin Yousif Al-Aboosi ; Radhi Sehen Issa ; Ali Khalid Jassim 等
期刊名称：TELKOMNIKA (Telecommunication Computing Electronics and Control)
印刷版ISSN：2302-9293
出版年度：2020
卷号：18
期号：3
页码：1439-1446
DOI：10.12928/telkomnika.v18i3.14381
出版社：Universitas Ahmad Dahlan
摘要：In many applications, Image de-noising and improvement represent essential processes in presence of colored noise such that in underwater. Power spectral density of the noise is changeable within a definite frequency range, and autocorrelation noise function is does not like delta function. So, noise in underwater is characterized as colored noise. In this paper, a novel image de-noising method is proposed using multi-level noise power estimation in discrete wavelet transform with different basis functions. Peak signal to noise ratio (PSNR) and mean squared error represented performance measures that the results of this study depend on it. The results of various bases of wavelet such as: Daubechies (db), biorthogonal (bior.) and symlet (sym.), show that denoising process that uses in this method produces extra prominent images and improved values of PSNR than other methods.
关键词：colored noise; denoising; estimation; PSNR; wavelet transform;