Discrete cosine transform: algorithms, advantages, applications
Discrete cosine transform: algorithms, advantages, applications
New fast recursive algorithms for the computation of discretecosine and sine transforms
IEEE Transactions on Signal Processing
Sturm root counting using chebyshev expansion
ACM Communications in Computer Algebra
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An in-place algorithm for the fast, direct computation of the forward and inverse discrete cosine transform is presented and evaluated. The transform length may be an arbitrary power of two.