Function prewitt 

pub fn prewitt<A, D>(
    data: &ArrayRef<A, D>,
    axis: Axis,
    mode: BorderMode<A>,
) -> Array<A, D>
where
    A: Copy + Signed + ScalarOperand + FromPrimitive + PartialOrd,
    for<'a> &'a [A]: SymmetryStateCheck,
    D: Dimension,

Calculate a Prewitt filter.

• data - The input N-D data.
• axis - The axis of input along which to calculate.
• mode - Method that will be used to select the padded values. See the CorrelateMode enum for more information.