Function leptonica_sys::pixAverageInRect

pub unsafe extern "C" fn pixAverageInRect(
    pixs: *mut PIX, 
    pixm: *mut PIX, 
    box_: *mut BOX, 
    minval: l_int32, 
    maxval: l_int32, 
    subsamp: l_int32, 
    pave: *mut l_float32
) -> l_ok