An adaptive denoising method for colour images of mobile phone based on bivariate shrinkage function Online publication date: Mon, 22-Oct-2018
by Xuehui Wu; Xiaobo Lu; Xue Han; Chunxue Liu
International Journal of Embedded Systems (IJES), Vol. 10, No. 6, 2018
Abstract: The photography function of mobile phones has become the current trend, and the requirements for image denoising performance are higher and higher. It is different from traditional image denoising because mobile phone image denoising needs faster speed, less computing time and higher efficiency. Wavelet transform denoising algorithm can meet the denoising demand of mobile phone images because of its rapidity, validity and so on. However, denoising by wavelet transform is optimal for Gaussian noise, and the actual noise of images taken by mobile phones does not completely conform to Gaussian distribution, and then down-sampling method is adopted to simulate the Gaussian noise. In this article, an adaptive denoising method for colour images of mobile phone based on bivariate shrinkage function is proposed. Simulation and actual experimental results showed that the method can get better denoising effect compared with other methods.
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