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+.. _edge2:
+
+.. index::
+ pair: command line option; edge2
+ pair: menu item; Edge detection2
+ pair: filter; Edge detection2
+
+Edge detection2
+===============
+
+This filter is a standard edge detection algorithm; solid areas are filled in
+black. Some fractals look very interesting with this filter (and some areas of
+some fractals just look like noise). This version of the filter produces
+relatively tight lines, so is useful at lower resolutions. The filter
+:ref:`edge detection <edge>` makes thinner lines, for the high resolution
+modes.
+
+:ref:`More information about filters <filter>`
+
+**Available as**: menu item, command line option