An edge detection algorithm based on wavelet transform was presented.Mallat and other scholar had proposed that the singular point of signal can be presented by the local maxima of its wavelet transform,thus the edges by wavelet transform can be detected.But the criteria of selecting local maxima of its wavelet transform directly decides the edge image quality,so a selection method of local maxima of wavelet transform based on module maxima was proposed.The experiment shows that the method is better than th...
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