diff --git a/IV/amalgamate1.png b/IV/amalgamate1.png new file mode 100644 index 0000000..5bf3ed5 Binary files /dev/null and b/IV/amalgamate1.png differ diff --git a/IV/mj-msc.tex b/IV/mj-msc.tex index 633cf66..a43a003 100644 --- a/IV/mj-msc.tex +++ b/IV/mj-msc.tex @@ -283,13 +283,29 @@ direction are topographic: bends over a relatively long distance) implies greater slope, more water, and/or faster flow. - \item Bendy river, on the contrary, implies slower flow, smaller slope, + \item Bendy river, on the contrary, implies slower flow, slighter slope, and/or less water. \end{itemize} -Both {\VW} and {\DP} have a tendency to remove the small bends altogether, -which is a valuable characterization of the river. Therefore, a more robust +Both {\VW} and {\DP} have a tendency to remove the small bends altogether, a +valuable characterization of the river. + +Sometimes low-water rivers in slender slopes have many bends next to each +other. In low resolutions (either in small-DPI screens or paper, or when the +river is sufficiently zoomed out, or both), the small bends will amalgamate to +a unintelligible blob. Figure~\onpage{fig:amalgamate1} and +figure~\onpage{fig:amalgamate2} are real-world examples where a river, normally +1 or 2 pixels wide, creates a few pixels wide blob due to a number of bends. + +\begin{figure}[h] + \includegraphics[width=\textwidth]{amalgamate1} + \caption{Narrow bends amalgamating into large unintelligible blobs} + \label{fig:pixel-amalgamation} +\end{figure} + + +Therefore, a more robust generalization algorithm is worthwhile for lookout. \subsubsection{Modern approaches}