pub unsafe extern "C" fn optical_flow_mg(
ImageT1: Hobject,
ImageT2: Hobject,
VectorField: *mut Hobject,
Algorithm: *const c_char,
SmoothingSigma: f64,
IntegrationSigma: f64,
FlowSmoothness: f64,
GradientConstancy: f64,
MGParamName: *const c_char,
MGParamValue: *const c_char,
) -> Herror