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# dct

Copyright (C) 2005 IENT-RWTH Aachen

template<class G1,class G2> void dct(const Vector<G1> &X, Vector<G2> &Y)
template<class G> PROMOTE2(float,Vector<G>) dct(const Vector<G> &X)
template<class G1,class G2> inline void dct(const Matrix<G1> &X, Matrix<G2> &Y)
template<class G> PROMOTE2(float,Matrix<G>) dct(const Matrix<G> &X)

Discrete Cosine Transform

Parameters

Y | The DCT
X | A signal

Returns

Dense array

Example

    DenseVector<float>::self X(8, 1);
    DenseVector<float>::self Y = dct(X);

    DenseVector<double>::self X(8, 1);
    dct(X,X); // in place