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Embedding Intrinsic Mode Function into Anisotropic Diffusion Equation for Image Denoising |
Dai Fang①②; Xue Jian-ru①; Zheng Nan-ning① |
①Institute of Artificial Intelligence & Robotics, Xi’an Jiaotong University, Xi’an 710049, China;
②School of Science, Xi’an University of Technology, Xi’an 710054, China |
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Abstract In this paper, an image denoising model which embeds intrinsic mode function into Perona-Malik model is proposed. Firstly, the image is decomposed into Intrinsic Mode Functions (IMFs) by using empirical mode decomposition technique; each of IMFs captures the feature information under different scales. Secondly, the first and second IMFs are embedded into Perona-Malik model. Experimental results indicate that this method is more efficient than Perona-Malik model in removing Gaussian noise. Moreover, this method can remove salt and pepper noise.
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Received: 06 April 2007
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