Available in LEADTOOLS Imaging Pro, Vector, Document, and Medical Imaging toolkits.
Raster Image Functions: Image Processing Fourier Transform Functions
LBitmap::AllocFTArray
LBitmap::DFT
LBitmap::FFT
LBitmap::FreeFTArray
LBitmap::FTDisplay
LBitmap::FrqFilter
LBitmap::FrqFilterMask