An Image Edge Detection Method based on Lifting Wavelet Transform

In order to extract the image edge information,this paper uses the properties of wavelet transform,proposed one kind of edge detection method based on the lifting wavelet transform.Through the lifting wavelet transform to image is decomposed into one low fre quency coefficients and three high frequency coefficients.The low frequency coefficients of the edge extraction,respectively of the high fre quency coefficients smoothing,the edges of the image and the high frequency coefficients are inverse transform of the lifting wavelet to ob tain maximum edge information of source images.