Function vips_sys::im_correl

pub unsafe extern "C" fn im_correl(
    ref_: *mut VipsImage, 
    sec: *mut VipsImage, 
    xref: c_int, 
    yref: c_int, 
    xsec: c_int, 
    ysec: c_int, 
    hwindowsize: c_int, 
    hsearchsize: c_int, 
    correlation: *mut f64, 
    x: *mut c_int, 
    y: *mut c_int
) -> c_int