FourierMultImg

DESCRIPTION

Multiplies two complex frequency domain images, effectively producing the frequency domain representation of their time domain convolution. The inputs must have equal sizes and must be frequency domain images in the packed format produced by the ForwardFFTImg module (see format description in ForwardFFTImg documentation). The Fourier transformation and the cross correlation are discussed in:

Digital Image Processing, Gonzales, R.C., Wintz, P., Addison Wesley, Second Edition, 1987, pp 61--137.

INPUTS

Port: First Img In
Type: Lattice
Constraints: 1..3-D
First frequency domain image.

Port: Second Img In
Type: Lattice
Constraints: 1..3-D
Second frequency domain image.

WIDGETS

OUTPUTS

Port: Img Out
Type: Lattice
Constraints: 1..3-D
Product of frequency domain images.

KNOWN PROBLEMS

SEE ALSO

ForwardFFTImg, InverseFFTImg, FourierPwrImg.
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© The Numerical Algorithms Group Ltd, Oxford UK. 2000