Continued. Use the following row of pixel values $P$ as input to the following questions:

$2E(8$pts$).$ The reason I didn't have you compute the border pixel values is because they

depend on what "border handling" method you use. For the following four common border

handling methods, compute the cross correlation of row of pixels $P$ with $\left[\begin{array}{ccc}1& -2& 1\end{array}\right]$ and fill in

the blanks below.

Border handling method: Zero Padding

Border handling method: Replication

Border handling method: Reflection

X X X X X

Border handling method: Wraparound