Explore MATLAB source code curated for "轮廓波变换" with clean implementations, documentation, and examples.
MATLAB source code for Contourlet transform implementation featuring image denoising algorithm based on Contourlet decomposition, including subband thresholding and reconstruction techniques.
During Laplacian pyramid decomposition in contourlet transform, the resulting bandpass images exhibit oscillations near singularity points, which degrades image denoising performance. To address this issue, we propose an improved Laplacian pyramid decomposition that eliminates edge oscillations. This enhanced method implements contourlet transform using the modified pyramid structure and incorporates adaptive denoising techniques. Experimental results demonstrate significant improvement in peak signal-to-noise ratio (PSNR) compared to conventional contourlet transform adaptive denoising algorithms, along with substantial visual quality enhancement.
Contourlet Transform Toolbox - A powerful tool recently gaining significant traction in image denoising and fusion applications
This code program implements the contourlet transform process through systematic signal processing operations including smoothing, filtering, and polynomial fitting techniques.