From a07b2323144334536028de4b5c81cc0405d7ca47 Mon Sep 17 00:00:00 2001
From: Davis King <davis@dlib.net>
Date: Fri, 27 May 2011 12:18:11 -0400
Subject: [PATCH] fixed typo in spec

---
 dlib/image_transforms/thresholding_abstract.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dlib/image_transforms/thresholding_abstract.h b/dlib/image_transforms/thresholding_abstract.h
index ebb4aa857..614226e37 100644
--- a/dlib/image_transforms/thresholding_abstract.h
+++ b/dlib/image_transforms/thresholding_abstract.h
@@ -77,7 +77,7 @@ namespace dlib
         >
     void hysteresis_threshold (
         const in_image_type& in_img,
-        const out_image_type& out_img,
+        out_image_type& out_img,
         unsigned long lower_thresh,
         unsigned long upper_thresh
     );