Discrete wavelet transform generates low-order wavelet details that keep invariant with the total order number; while changing the total order number can only increase wavelet details of the highest orders and degree of smoothness of the final approximati
Discrete wavelet transform generates low-order wavelet details that keep invariant with the total order number; while changing the total order number can only increase wavelet details of the highest orders and degree of smoothness of the final approximati
离散二维小波变换产生的低阶小波细节具有尺度不变的特徵，它们不随小波变换的总阶数改变，而总阶数的增加仅增加高阶小波细节的个数和改变最后的高阶逼近。