Does MATLAB implement the dual tree wavelet transform to get the co-efficients of an image?

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Pat 2012-1-3

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I have an image (say lena.jpg), and I want to get coefficients of the image by performing a dual tree wavelet transform. Is this possible in MATLAB or with the Wavelet Toolbox?

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Walter Roberson 2012-1-3

Is "dual tree wavelet transform" possible to implement in *some* deterministic programming language? Can the transform be applied to images? If the answer to both is Yes, then Yes, it is possible, provided that you have enough memory accessible and enough time to wait.

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Answer 1

Wayne King 2012-1-3

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Hi Pat, the dual tree wavelet transform is not currently supported in the MathWorks' Wavelet Toolbox, but Professor Ivan Selesnick provides code for the dual tree wavelet transform at his website. I believe Professor Nick Kingsbury also provides MATLAB code on request.

Keep in mind that you cannot implement the dual tree transform with arbitrary wavelet and scaling filters.