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Member of the transforms class.

Syntax

c = dct(a)

c = dct(a, b)

Description

Computes the discrete cosine transform. You can invert this transform with the idct function.

Examples

Inputs

Name	Description
a	Specifies the input array. a is an array. If a is a 2D array, dct computes the discrete cosine transform along the first non-singleton dimension of a.
b	Pads a with zeros or truncates a to the length of b. b is a positive integer.

Outputs

Name	Description
c	Returns the discrete cosine transform of a.

Examples

x = cos(0:12);
y = dct(x, 16)

Related Topics

dst
idct
idst