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Discrete cosine transform

specifies
the type of discrete cosine transform to compute. See Discrete Cosine Transform for details. This option can be combined with
any of the previous syntaxes.`y`

= dct(___,'Type',`dcttype`

)

[1] Jain, A. K. *Fundamentals of
Digital Image Processing*. Englewood Cliffs, NJ: Prentice-Hall,
1989.

[2] Oppenheim, Alan V., Ronald W.
Schafer, and John R. Buck. *Discrete-Time Signal Processing*. 2nd
Ed. Upper Saddle River, NJ: Prentice Hall, 1999.

[3] Pennebaker, W. B., and J. L. Mitchell. *JPEG Still Image
Data Compression Standard*. New York: Van Nostrand Reinhold,
1993.