FourierDivImg
DESCRIPTION
Forms the quotient of two frequency domain images. The first input is
taken as the numerator and the second as the denominator.
The numerator value is used for the quotient if the denominator at that
point is zero. This operation is useful for image filtering and
restoration operations. The inputs 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
Numerator frequency domain image.
Port: Second Img In
Type: Lattice
Constraints: 1..3-D
Denominator frequency domain image.
WIDGETS
OUTPUTS
Port: Img Out
Type: Lattice
Constraints: 1..3-D
Quotient frequency domain image.
KNOWN PROBLEMS
SEE ALSO
ForwardFFTImg,
InverseFFTImg,
FourierMultImg,
FourierPwrImg.
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© The Numerical Algorithms Group Ltd, Oxford UK. 2000