diff --git a/MagickCore/segment.h b/MagickCore/segment.h
new file mode 100644
index 0000000..06314da
--- /dev/null
+++ b/MagickCore/segment.h
@@ -0,0 +1,35 @@
+/*
+ Copyright 1999-2011 ImageMagick Studio LLC, a non-profit organization
+ dedicated to making software imaging solutions freely available.
+
+ You may not use this file except in compliance with the License.
+ obtain a copy of the License at
+
+ http://www.imagemagick.org/script/license.php
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+
+ MagickCore image segment methods.
+*/
+#ifndef _MAGICKCORE_SEGMENT_H
+#define _MAGICKCORE_SEGMENT_H
+
+#if defined(__cplusplus) || defined(c_plusplus)
+extern "C" {
+#endif
+
+extern MagickExport MagickBooleanType
+ GetImageDynamicThreshold(const Image *,const double,const double,
+ PixelInfo *,ExceptionInfo *),
+ SegmentImage(Image *,const ColorspaceType,const MagickBooleanType,
+ const double,const double);
+
+#if defined(__cplusplus) || defined(c_plusplus)
+}
+#endif
+
+#endif