splitComplex


Input


An integer between 0 and 116 specifying the input image frame number. A value of 0 represents the DMA memory buffer of the video device. Values in the range of 100116 correspond to hidden frames.


Output1, Output2


Integers between 1 and 116 specifying the output frame numbers for the Real and Imaginary components in case the input image is in the Cartesian mode, or for the Amplitude and Phase components in case the input image is in the Polar mode. Values in the range of 100116 correspond to hidden frames.


ERR_OK


The flag set if successful.


ERR_FAILED


The flag set if failed.

This set of statements grabs an image from the video device, applies the fast Fourier transform to it and splits the resulting complex image into the Amplitude and Phase components. Then the amplitude component is scaled up with the factor function, and both components merge back into a complex image. The inverse Fourier transform recreates the original image with an increased contrast.


Inp=1

Cmpl=100

Amp=2

Ph=3

Out=4

Koef=1.5

GrabIm(Inp)

fourier (Inp, Cmpl, M_DIRECT, F_FFT)

splitComplex (Cmpl, Amp,Ph)

factorIm (Amp,Amp,Koef,M_CLIP)

mergeComplex (Amp,Ph,Cmpl,C_POLAR)

fourier (Cmpl,Out,M_INVERSE,F_FFT)

