Returns the minimum number N that is greater to equal to size0, such that DFT of a vector of size N can be computed fast. In the current implementation N=2^p x 3^q x 5^r for some p, q, r.

public static int cvGetOptimalDFTSize(
	int size0
)

Public Shared Function cvGetOptimalDFTSize ( _
	size0 As Integer _
) As Integer

public:
static int cvGetOptimalDFTSize(
	int size0
)