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Wavelab Toolbox >> Wavelab Toolbox > 2-d Wavelet- and Cosine- Packet Tools > dct2_iv

dct2_iv

2-dimensional discrete cosine transform (type IV)

Calling Sequence

c = dct2_iv(x)

Parameters

Inputs:

x :

2-d image (n by n array, n dyadic)

Outputs:

c :

2-d cosine transform

Description

A two-dimensional DCT is computed for the array x. To reconstruct, use the same function: x = dct2_iv(c)

See also

Authors

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