现在小波的发展越来越快，在小波的基础上又出现了超小波，轮廓波也是一种很重要的超小波，对于提取图像特征有很大的帮助-Now increasingly rapid development of wavelet, wavelet has emerged on the basis of super-wavelet contour wave is also a very important super wavelets for image feature extraction is very helpfu