cosine_transform, a FORTRAN90 code which demonstrates some simple properties of the discrete cosine transform (DCT) for real data.
The code is not optimized in any way, and is intended instead for investigation and education.
The computer code and data files described and made available on this web page are distributed under the GNU LGPL license.
cosine_transform is available in a C version and a C++ version and a FORTRAN90 version and a MATLAB version and a Python version.
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