Need help in implementing Fresnel Transform

[sree99]

I am  new to LabVIEW and need help in performing Fresnel Transform. What my project is to grab images using a camera and to perform fresnel transform.First the image should be mutiplied to an exponential factor exp(−iπ/λd(k²x² + l²y²)) then  perform IFFT. Please help me,,.

     Thanks for your time