ImageEn, unit ievision

TIEVisionImage.DFT

TIEVisionImage.DFT


Declaration

procedure DFT(dest: TIEVisionImage; flags: TIEVisionDFTFlags; nonZeroRows: int32_t = 0); safecall;


Description

Performs a forward or inverse Discrete Fourier Transform of a 1D or 2D floating-point image.

Parameter Description
dest Container for the resulting image.
flags Transformation flags.
nonZeroRows When the parameter is not zero, the function assumes that only the first nonzeroRows rows of the input image (ievDFT_INVERSE is not set) or only the first nonzeroRows of the output image (ievDFT_INVERSE is set) contain non-zeros.