Order N log2 N WHT/DHT algorithm |
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| Authors: | Hsu C.-X. Wu J.-L. |
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| Affiliation: | Dept. of Electr. Eng., Tatung Inst. of Technol., Taipei; |
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| Abstract: | An efficient algorithm is proposed which computes the coefficients of the higher order discrete Hartley transform (DHT) directly from the coefficients of lower-order DHTs. With this new development, the two-stage Walsh-Hadamard transform/discrete Hartley transform (WHT/DHT) is comparable to the existing fast algorithms. The same approach can also be used for the computation of DCT coefficients |
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