wavelet transform

Question

Aseel H 2012-2-18

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/29537-wavelet-transform

I use the function: X_InPlace = lwt2(I,LS,level,'typeDEC',typeDEC); CA = X_InPlace(1:2:end,1:2:end); CH = X_InPlace(2:2:end,1:2:end); CV = X_InPlace(1:2:end,2:2:end); CD = X_InPlace(2:2:end,2:2:end);

then, I change in the values of CA,CH,CV and CD

How can compound new subbands in one matrix as X_InPlace?

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Answer 1

Wayne King 2012-2-18

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/29537-wavelet-transform#answer_37879

在 MATLAB Online 中打开

            % assuming I was your input image
            X_newInPlace = zeros(size(I));
            CA = X_newInPlace(1:2:end,1:2:end);
            CH = X_newInPlace(2:2:end,1:2:end);
            CV = X_newInPlace(1:2:end,2:2:end);
            CD = X_newInPlace(2:2:end,2:2:end);