Function ippiSegmentGradient_8u_C3IR 

pub unsafe extern "C" fn ippiSegmentGradient_8u_C3IR(
    pSrc: *const u8,
    srcStep: i32,
    pMarker: *mut u8,
    markerStep: i32,
    roiSize: IppiSize,
    norm: u32,
    flags: i32,
    pBuffer: *mut u8,
) -> i32