MATLAB: Wavelets

image processingMATLABwavelet

difference b/w the functions dwt2 and wavedec2

Best Answer

Hi Aavula, dwt2 gives you the 2D (separable) discrete wavelet transform at one level.
wavedec2 gives you the 2D (separable) discrete wavelet transform at a number of levels if you wish (provided as an input argument). wavedec2 uses dwt2 to iterate on the LL component.
Hope that helps,
Wayne
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