資源簡介
matlab實現連續小波變換,僅供參考,互相學習

代碼片段和文件信息
load?noisbump;
x=noisbump;xx=x(257:768);title(‘原始圖像‘)
x1=[zeros(1256)x(257:768)zeros(1256)];%
x2=wextend(‘1‘‘ppd‘xx256);
x3=wextend(‘1‘‘sym‘xx256);
subplot(221);plot(x);title(‘原始圖像‘);
subplot(222);plot(x1);title(‘零外推圖像‘);
subplot(223);plot(x2);title(‘周期外推圖像‘);
subplot(224);plot(x3);title(‘鏡像外推圖像‘);
xco=cwt(x1‘morl‘);
x1co=cwt(x11‘morl‘);
x2co=cwt(x21‘morl‘);
x3co=cwt(x31‘morl‘);
n=1:1024;
figure;
%?plot(nxco‘o‘nx1co‘*‘)
plot(nxco‘o‘nx1co‘*‘nx2co‘+‘nx3co‘-‘)
%?legend(‘原始圖像‘‘零外推圖像‘‘周期外推圖像‘‘鏡像外推圖像‘)
legend(‘原始數據‘‘零外推數據‘)
%?load?noisbump;
%?x=noisbump;xx=x(257:768);title(‘原始圖像‘)
%?x1=[zeros(1256)x(257:768)zeros(1256)];%
%?x2=wextend(‘1‘‘ppd‘xx256);
%?x3=wextend(‘1‘‘sym‘xx256);
%?subplot(221);plot(x);title(‘原始圖像‘);
%?subplot(222);plot(x1);title(‘零外推圖像‘);
%?subplot(223);plot(x2);title(‘周期外推圖像‘);
%?subplot(224);plot(x3);title(‘鏡像外推圖像‘);
%?
%?xco=cwt(x1‘mexh‘);
%?x1co=cwt(x11‘mexh‘);
%?x2co=cwt(x21‘mexh‘);
%?x3co=cwt(x31‘mexh‘);
%?y=1:1024
%?figure;
%?plot(yxco‘o‘yx1co‘s‘)
%?legend(‘原始數據‘‘零外推數據‘)
?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????文件???????1212??2013-01-07?11:29??CWT\CWT.m
?????文件????????995??2015-05-13?15:40??CWT\wavelet.m
?????目錄??????????0??2015-06-03?11:16??CWT
-----------?---------??----------?-----??----
?????????????????2207????????????????????3
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