From 9285898d39b5e6de09041f480e0b8c82e612311a Mon Sep 17 00:00:00 2001
From: Tony S Yu <tsyu80@gmail.com>
Date: Wed, 25 Jul 2012 00:41:54 -0400
Subject: [PATCH] DOC: Add class docstring

---
 skimage/viewer/plugins/canny.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/skimage/viewer/plugins/canny.py b/skimage/viewer/plugins/canny.py
index 3431c6af..7c7bfb3b 100644
--- a/skimage/viewer/plugins/canny.py
+++ b/skimage/viewer/plugins/canny.py
@@ -5,6 +5,7 @@ from ..widgets import Slider, ComboBox
 
 
 class CannyPlugin(OverlayPlugin):
+    """Canny filter plugin to show edges of an image."""
 
     name = 'Canny Filter'