diff a/hat/examples/violajones/src/main/resources/cascades/haarcascade_smile.xml b/hat/examples/violajones/src/main/resources/cascades/haarcascade_smile.xml
--- /dev/null
+++ b/hat/examples/violajones/src/main/resources/cascades/haarcascade_smile.xml
@@ -0,0 +1,8353 @@
+<?xml version="1.0"?>
+<!--
+  Smile detector
+  Contributed by Oscar Deniz Suarez
+  More information can be found at http://visilab.etsii.uclm.es/personas/oscar/oscar.html
+
+//////////////////////////////////////////////////////////////////////////
+| Contributors License Agreement
+| IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
+|   By downloading, copying, installing or using the software you agree
+|   to this license.
+|   If you do not agree to this license, do not download, install,
+|   copy or use the software.
+|
+| Copyright (c) 2011, Modesto Castrillon-Santana (IUSIANI, Universidad de
+| Las Palmas de Gran Canaria, Spain).
+|  All rights reserved.
+|
+| Redistribution and use in source and binary forms, with or without
+| modification, are permitted provided that the following conditions are
+| met:
+|
+|    * Redistributions of source code must retain the above copyright
+|       notice, this list of conditions and the following disclaimer.
+|    * Redistributions in binary form must reproduce the above
+|      copyright notice, this list of conditions and the following
+|      disclaimer in the documentation and/or other materials provided
+|      with the distribution.
+|    * The name of Contributor may not used to endorse or promote products
+|      derived from this software without specific prior written permission.
+|
+| THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+| "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+| LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+| A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+| CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+| EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+| PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+| PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+| LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+| NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+| SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.  Back to
+| Top
+//////////////////////////////////////////////////////////////////////////
+
+-->
+<opencv_storage>
+<!-- Automatically converted from data/classifier, window size = 36x18 -->
+<SmileDetector type_id="opencv-haar-classifier">
+  <size>
+    36 18</size>
+  <stages>
+    <_>
+      <!-- stage 0 -->
+      <trees>
+        <_>
+          <!-- tree 0 -->
+          <_>
+            <!-- root node -->
+            <feature>
+              <rects>
+                <_>
+                  0 0 2 4 -1.</_>
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+                  0 2 2 2 2.</_></rects>
+              <tilted>0</tilted></feature>
+            <threshold>-4.8783610691316426e-004</threshold>
+            <left_val>0.5921934843063355</left_val>
+            <right_val>-0.4416360855102539</right_val></_></_>
+        <_>
+          <!-- tree 1 -->
+          <_>
+            <!-- root node -->
+            <feature>
+              <rects>
+                <_>
+                  34 10 2 8 -1.</_>
+                <_>
+                  34 14 2 4 2.</_></rects>
+              <tilted>0</tilted></feature>
+            <threshold>-4.2209611274302006e-004</threshold>
+            <left_val>0.3031865060329437</left_val>
+            <right_val>-0.3291291892528534</right_val></_></_>
+        <_>
+          <!-- tree 2 -->
+          <_>
+            <!-- root node -->
+            <feature>
+              <rects>
+                <_>
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+              <tilted>0</tilted></feature>
+            <threshold>-4.9940118333324790e-004</threshold>
+            <left_val>0.4856331050395966</left_val>
+            <right_val>-0.4292306005954742</right_val></_></_>
+        <_>
+          <!-- tree 3 -->
+          <_>
+            <!-- root node -->
+            <feature>
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+              <tilted>0</tilted></feature>
+            <threshold>0.0372891984879971</threshold>
+            <left_val>-0.2866730093955994</left_val>
+            <right_val>0.5997999906539917</right_val></_></_>
+        <_>
+          <!-- tree 4 -->
+          <_>
+            <!-- root node -->
+            <feature>
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+              <tilted>1</tilted></feature>
+            <threshold>1.4334049774333835e-003</threshold>
+            <left_val>-0.3489313125610352</left_val>
+            <right_val>0.4048275053501129</right_val></_></_>
+        <_>
+          <!-- tree 5 -->
+          <_>
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+            <left_val>0.7571418881416321</left_val>
+            <right_val>-0.1222594976425171</right_val></_></_>
+        <_>
+          <!-- tree 6 -->
+          <_>
+            <!-- root node -->
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+            <left_val>-0.1665772050619125</left_val>
+            <right_val>0.7509614825248718</right_val></_></_>
+        <_>
+          <!-- tree 7 -->
+          <_>
+            <!-- root node -->
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+            <threshold>-7.7238711528480053e-003</threshold>
+            <left_val>0.6266279220581055</left_val>
+            <right_val>-0.1912745982408524</right_val></_></_>
+        <_>
+          <!-- tree 8 -->
+          <_>
+            <!-- root node -->
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+            <left_val>-0.2394447028636932</left_val>
+            <right_val>0.4484061896800995</right_val></_></_>
+        <_>
+          <!-- tree 9 -->
+          <_>
+            <!-- root node -->
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+            <left_val>-0.1843906939029694</left_val>
+            <right_val>0.0917824134230614</right_val></_></_>
+        <_>
+          <!-- tree 10 -->
+          <_>
+            <!-- root node -->
+            <feature>
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+              <tilted>0</tilted></feature>
+            <threshold>0.0146256200969219</threshold>
+            <left_val>0.1616805940866470</left_val>
+            <right_val>-0.8150117993354797</right_val></_></_></trees>
+      <stage_threshold>-1.2678639888763428</stage_threshold>
+      <parent>-1</parent>
+      <next>-1</next></_>
+    <_>
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+      <trees>
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+            <left_val>-0.3327588140964508</left_val>
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+            <left_val>0.3635309040546417</left_val>
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+        <_>
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+            <left_val>0.7135239243507385</left_val>
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+            <left_val>-0.6348456144332886</left_val>
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+            <left_val>-0.6279314756393433</left_val>
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+            <left_val>-0.2757895886898041</left_val>
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+        <_>
+          <!-- tree 45 -->
+          <_>
+            <!-- root node -->
+            <feature>
+              <rects>
+                <_>
+                  0 12 36 3 -1.</_>
+                <_>
+                  12 13 12 1 9.</_></rects>
+              <tilted>0</tilted></feature>
+            <threshold>0.2262602001428604</threshold>
+            <left_val>-0.0420460589230061</left_val>
+            <right_val>0.7791252136230469</right_val></_></_>
+        <_>
+          <!-- tree 46 -->
+          <_>
+            <!-- root node -->
+            <feature>
+              <rects>
+                <_>
+                  0 13 34 4 -1.</_>
+                <_>
+                  0 13 17 2 2.</_>
+                <_>
+                  17 15 17 2 2.</_></rects>
+              <tilted>0</tilted></feature>
+            <threshold>-0.0293774604797363</threshold>
+            <left_val>-0.5947058796882629</left_val>
+            <right_val>0.0548178702592850</right_val></_></_></trees>
+      <stage_threshold>-1.1933319568634033</stage_threshold>
+      <parent>18</parent>
+      <next>-1</next></_></stages></SmileDetector>
+</opencv_storage>
