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clc,clear all,close all; load woman; %单尺度二维离散小波分解。分解小波函数haar [cA,cH,cV,cD]=dwt2(X,‘haar‘); %单尺度二维离散小波重构(逆变换) Y=idwt2(cA,cH,cV,cD,‘haar‘); figure; subplot(1,2,1),imshow(X,map),title(‘原始图像‘); subplot(1,2,2),imshow(Y,map),title(‘重构图像‘);
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原文地址:http://www.cnblogs.com/xixixing/p/5827599.html