L_COMPLEX

typedef struct tagCOMPLEX
{
   L_DOUBLE r;
   L_DOUBLE i;
}L_COMPLEX, *pCOMPLEX;

The COMPLEX structure contains a complex number representing a specific frequency component in Fourier Transform functions.

Member

Description

r

Real part of a complex number.

i

Imaginary part of a complex number.

Comments

This structure is used only by the Fourier Transform functions:

L_AllocFTArray

L_DFTBitmap

L_FFTBitmap

L_FreeFTArray

L_FTDisplayBitmap

L_FrqFilterBitmap

L_FrqFilterMaskBitmap