DESCRIPTIONComputes the cross correlation of two images in the frequency domain by multiplying the first input times the conjugate of the second and dividing throughout by the DC component of the first input. 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.
Port: First Img In
First frequency domain image.
Port: Second Img In
Second frequency domain image.
Port: Img Out
Cross correlation in frequency domain.
SEE ALSOForwardFFTImg, InverseFFTImg.
© The Numerical Algorithms Group Ltd, Oxford UK. 2000