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The Discrete Cosine Transform

The Discrete Cosine Transform. The 1-D discrete cosine transform (DCT) is defined as: DCT belongs to the family of sinusoidal transforms. Its basis functions are sinusoidal waveforms. It can be computed from the DFT. Therefore it has fast algorithm derived from the FFT.

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The Discrete Cosine Transform

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  1. The Discrete Cosine Transform • The 1-D discrete cosine transform (DCT) is defined as: • DCT belongs to the family of sinusoidal transforms. Its basis functions are sinusoidal waveforms. • It can be computed from the DFT. Therefore it has fast algorithm derived from the FFT.

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