Why Wavelet 1-D Denoising in Matlab can only happen on approximation coefficients?
2 visualizaciones (últimos 30 días)
Mostrar comentarios más antiguos
I have been trying to get familiar with Wavelet toolbox in matlab for denoising purposes. I understand that wavelets assumes noise does not affect much low frequency bands which is why thresholding to denoise can only happen on details.
I also understand that details are for HPF and approximation are for the LPF part of the decomposition.
How can I apply thresholding on the approximation coefficients?
Also since my input to the Wavelet 1-D is discrete data without sampling frequency information how are the filter banks frequencies dictated when forming the decomposition?
0 comentarios
Respuestas (0)
Ver también
Categorías
Más información sobre Denoising and Compression en Help Center y File Exchange.
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!