<li><a href="matlab:doc('opConvolve')">opConvolve</a>     - One and two dimensional convolution operator</li><li><a href="matlab:doc('opDCT')">opDCT</a>          - Discrete cosine transform (DCT)</li><li><a href="matlab:doc('opDCT2')">opDCT2</a>         -  Two-dimensional discrete cosine transform (DCT)</li><li><a href="matlab:doc('opDFT')">opDFT</a>          - Fast Fourier transform (DFT)</li><li><a href="matlab:doc('opDFT2')">opDFT2</a>         - Two-dimensional fast Fourier transform (DFT)</li><li><a hre