Function leptonica_sys::pixGetPerceptualDiff

pub unsafe extern "C" fn pixGetPerceptualDiff(
    pixs1: *mut PIX,
    pixs2: *mut PIX,
    sampling: l_int32,
    dilation: l_int32,
    mindiff: l_int32,
    pfract: *mut l_float32,
    ppixdiff1: *mut *mut PIX,
    ppixdiff2: *mut *mut PIX
) -> l_ok