www.gusucode.com > 小波分析理论与Matlab 7实现 > 小波分析理论与Matlab 7实现/code/Ch14/例程14-10.m
% 使用Haar小波,得到相应的提升方案 lshaar = liftwave('haar'); % 添加ELS 到提升方案 els = {'p',[-0.125 0.125],0}; lsnew = addlift(lshaar,els); % 对于简单信号,尺度为1进行LWT x = 1:8; [cA,cD] = lwt(x,lsnew); % 对上面的信号,进行整数LWT lshaarInt = liftwave('haar','int2int'); lsnewInt = addlift(lshaarInt,els); [cAint,cDint] = lwt(x,lsnewInt); % 进行逆变换 xRec = ilwt(cA,cD,lsnew); err = max(max(abs(x-xRec))) xRecInt = ilwt(cAint,cDint,lsnewInt); errInt = max(max(abs(x-xRecInt)))