Contourlet transform implementation
2016-08-23
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When the Laplacian pyramid decomposition in the contourlet transform obtained from pass-band images near the singularity point Oscillation affect image denoising effect. To solve this problem, proposed a modified Laplacian pyramid decomposition, near the edge of the shock can be eliminated. Using the modified Laplacian pyramid contourlet transform and Adaptive image denoising. Experimental results show that the peak signal to noise ratio of this algorithm Adaptive denoising algorithm based on contourlet transform has significantly improved, and Visual effects has greatly improved
matlab
变换
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