From fae2456b490af7a52c097599b244b8ac2fcab38f Mon Sep 17 00:00:00 2001
From: Juan Nunez-Iglesias <juan.n@unimelb.edu.au>
Date: Thu, 31 Oct 2013 14:52:01 +1100
Subject: [PATCH] Allow OverlayPlugin to return the current overlay

---
 skimage/viewer/plugins/overlayplugin.py | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/skimage/viewer/plugins/overlayplugin.py b/skimage/viewer/plugins/overlayplugin.py
index dc5ca060..049f81a5 100644
--- a/skimage/viewer/plugins/overlayplugin.py
+++ b/skimage/viewer/plugins/overlayplugin.py
@@ -107,3 +107,19 @@ class OverlayPlugin(Plugin):
         # clear overlay from ImageViewer on close
         self.overlay = None
         super(OverlayPlugin, self).closeEvent(event)
+
+    def output(self):
+        """Return the overlaid image.
+
+        Parameters
+        ----------
+        None
+
+        Returns
+        -------
+        overlay : array, same shape as image
+            The overlay currently displayed.
+        data : None
+        """
+        return (self.overlay, None)
+