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Next: 13.3.5.1.2 Vertical Edges Up: 13.3.5.1 Line detection Previous: 13.3.5.1 Line detection   Contents

13.3.5.1.1 Horizontal Edges

\begin{displaymath}
\left[
\begin{array}{r r r}
-1 & -1 & -1 \\
2 & 2 & 2 \\
-1 & -1 & -1 \\
\end{array}
\right]
\end{displaymath}



2001-01-10