Function leptonica_sys::pixGetColorHistogramMasked

pub unsafe extern "C" fn pixGetColorHistogramMasked(
    pixs: *mut PIX, 
    pixm: *mut PIX, 
    x: l_int32, 
    y: l_int32, 
    factor: l_int32, 
    pnar: *mut *mut NUMA, 
    pnag: *mut *mut NUMA, 
    pnab: *mut *mut NUMA
) -> l_ok