Description: Abstract wavelet transform is the local time frequency analysis, it can shift computing through telescopic right signal Multiscale gradually thinning. This paper is based on wavelet transform in the field of image processing performance of the multi-scale analysis of the wavelet transform piston ring Edge detection method, the method of wavelet transform two-dimensional images of the local extreme value to detect the edges in the image information. Experiments show that this method is effective.
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