Editing Discrete cosine transform (section)

==External links==
{{Commons category|Discrete cosine transform}}
* Syed Ali Khayam: [https://web.archive.org/web/20150711105353/http://wisnet.seecs.nust.edu.pk/publications/tech_reports/DCT_TR802.pdf The Discrete Cosine Transform (DCT): Theory and Application]
* [http://www.reznik.org/software.html#IDCT Implementation of MPEG integer approximation of 8x8 IDCT (ISO/IEC 23002-2)]
* Matteo Frigo and [[Steven G. Johnson]]: ''FFTW'', [http://www.fftw.org/ FFTW Home Page]. A free ([[GNU General Public License|GPL]]) C library that can compute fast DCTs (types I-IV) in one or more dimensions, of arbitrary size.
* Takuya Ooura: General Purpose FFT Package, [http://www.kurims.kyoto-u.ac.jp/~ooura/fft.html FFT Package 1-dim / 2-dim]. Free C & FORTRAN libraries for computing fast DCTs (types II–III) in one, two or three dimensions, power of 2 sizes.
* Tim Kientzle: Fast algorithms for computing the 8-point DCT and IDCT, [http://drdobbs.com/parallel/184410889 Algorithm Alley].
* [http://ltfat.sourceforge.net/ LTFAT] is a free Matlab/Octave toolbox with interfaces to the FFTW implementation of the DCTs and DSTs of type I-IV.

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[[Category:Discrete transforms]]
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