diff --git a/PyHum/_pyhum_correct.py b/PyHum/_pyhum_correct.py
index f4d6cf7..6bc53fa 100755
--- a/PyHum/_pyhum_correct.py
+++ b/PyHum/_pyhum_correct.py
@@ -201,6 +201,10 @@ def correct(humfile, sonpath, maxW=1000, doplot=1, dofilt=0, correct_withwater=0
       else:
          print "Phase preserving filter will be applied"
 
+    if correct_withwater:
+      correct_withwater = int(correct_withwater)
+      if correct_withwater==1:
+         print "Correction will be applied without removing water column"
 
     # start timer
     if os.name=='posix': # true if linux/mac or cygwin on windows
diff --git a/PyHum/test.py b/PyHum/test.py
index 615a659..6c1eee2 100755
--- a/PyHum/test.py
+++ b/PyHum/test.py
@@ -96,7 +96,7 @@ def dotest():
           
    # correction specific settings
    maxW = 1000 # rms output wattage
-   dofilt = 1 # apply a phase preserving filter (WARNING!! takes a very long time for large scans)
+   dofilt = 0 # 1 = apply a phase preserving filter (WARNING!! takes a very long time for large scans)
    correct_withwater = 0 # don't retain water column in radiometric correction (1 = retains water column for radiomatric corrections)
 
    # for shadow removal
diff --git a/README.md b/README.md
index 7d91cb8..9222661 100755
--- a/README.md
+++ b/README.md
@@ -262,7 +262,7 @@ which carries out the following operations:
           
    # correction specific settings
    maxW = 1000 # rms output wattage
-   dofilt = 1 # apply a phase preserving filter (WARNING!! takes a very long time for large scans)
+   dofilt = 0 # 1=apply a phase preserving filter (WARNING!! takes a very long time for large scans)
    correct_withwater = 0 # don't retain water column in radiometric correction (1 = retains water column for radiomatric corrections)
 
    # for shadow removal
diff --git a/docs/README.rst b/docs/README.rst
index 8095f6f..0632ae5 100755
--- a/docs/README.rst
+++ b/docs/README.rst
@@ -237,7 +237,7 @@ which carries out the following operations::
           
    # correction specific settings
    maxW = 1000 # rms output wattage
-   dofilt = 1 # apply a phase preserving filter (WARNING!! takes a very long time for large scans)
+   dofilt = 0 # 1=apply a phase preserving filter (WARNING!! takes a very long time for large scans)
    correct_withwater = 0 # don't retain water column in radiometric correction (1 = retains water column for radiomatric corrections)
 
    # for shadow removal
diff --git a/docs/_build/doctrees/README.doctree b/docs/_build/doctrees/README.doctree
index d3446c7..4609d6c 100644
Binary files a/docs/_build/doctrees/README.doctree and b/docs/_build/doctrees/README.doctree differ
diff --git a/docs/_build/doctrees/environment.pickle b/docs/_build/doctrees/environment.pickle
index 6040ede..43ba99f 100644
Binary files a/docs/_build/doctrees/environment.pickle and b/docs/_build/doctrees/environment.pickle differ
diff --git a/docs/_build/doctrees/examples.doctree b/docs/_build/doctrees/examples.doctree
index e49961f..529b9b8 100644
Binary files a/docs/_build/doctrees/examples.doctree and b/docs/_build/doctrees/examples.doctree differ
diff --git a/docs/_build/doctrees/index.doctree b/docs/_build/doctrees/index.doctree
index 3d8981f..8541074 100644
Binary files a/docs/_build/doctrees/index.doctree and b/docs/_build/doctrees/index.doctree differ
diff --git a/docs/_build/doctrees/pyhum.map.doctree b/docs/_build/doctrees/pyhum.map.doctree
index 62960a3..5b7268a 100644
Binary files a/docs/_build/doctrees/pyhum.map.doctree and b/docs/_build/doctrees/pyhum.map.doctree differ
diff --git a/docs/_build/doctrees/pyhum.read.doctree b/docs/_build/doctrees/pyhum.read.doctree
index ab241a1..f790e45 100644
Binary files a/docs/_build/doctrees/pyhum.read.doctree and b/docs/_build/doctrees/pyhum.read.doctree differ
diff --git a/docs/_build/html/.buildinfo b/docs/_build/html/.buildinfo
index c3ba668..c47b42c 100644
--- a/docs/_build/html/.buildinfo
+++ b/docs/_build/html/.buildinfo
@@ -1,4 +1,4 @@
 # Sphinx build info version 1
 # This file hashes the configuration used when building these files. When it is not found, a full rebuild will be done.
-config: 71a759cea4207085537259d56964f2c3
+config: 998a16042a5a9e95d517d0501fd75e7e
 tags: 645f666f9bcd5a90fca523b33c5a78b7
diff --git a/docs/_build/html/README.html b/docs/_build/html/README.html
index 988d0cc..9d7f259 100644
--- a/docs/_build/html/README.html
+++ b/docs/_build/html/README.html
@@ -6,7 +6,7 @@
   <head>
     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
     
-    <title>Getting started &mdash; PyHum 1.3.2 documentation</title>
+    <title>Getting started &mdash; PyHum 1.3.3 documentation</title>
     
     <link rel="stylesheet" href="_static/classic.css" type="text/css" />
     <link rel="stylesheet" href="_static/pygments.css" type="text/css" />
@@ -14,7 +14,7 @@
     <script type="text/javascript">
       var DOCUMENTATION_OPTIONS = {
         URL_ROOT:    './',
-        VERSION:     '1.3.2',
+        VERSION:     '1.3.3',
         COLLAPSE_INDEX: false,
         FILE_SUFFIX: '.html',
         HAS_SOURCE:  true
@@ -23,7 +23,7 @@
     <script type="text/javascript" src="_static/jquery.js"></script>
     <script type="text/javascript" src="_static/underscore.js"></script>
     <script type="text/javascript" src="_static/doctools.js"></script>
-    <link rel="top" title="PyHum 1.3.2 documentation" href="index.html" />
+    <link rel="top" title="PyHum 1.3.3 documentation" href="index.html" />
     <link rel="next" title="Modules" href="modules.html" />
     <link rel="prev" title="PyHum: Python program for reading and processing low-cost sidescan sonar data" href="index.html" /> 
   </head>
@@ -40,7 +40,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="index.html" title="PyHum: Python program for reading and processing low-cost sidescan sonar data"
              accesskey="P">previous</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">PyHum 1.3.2 documentation</a> &raquo;</li> 
+        <li class="nav-item nav-item-0"><a href="index.html">PyHum 1.3.3 documentation</a> &raquo;</li> 
       </ul>
     </div>  
 
@@ -244,7 +244,7 @@ <h2>Installation on Amazon Linux EC-2 instance<a class="headerlink" href="#insta
 
 <span class="c"># correction specific settings</span>
 <span class="n">maxW</span> <span class="o">=</span> <span class="mi">1000</span> <span class="c"># rms output wattage</span>
-<span class="n">dofilt</span> <span class="o">=</span> <span class="mi">1</span> <span class="c"># apply a phase preserving filter (WARNING!! takes a very long time for large scans)</span>
+<span class="n">dofilt</span> <span class="o">=</span> <span class="mi">0</span> <span class="c"># 1=apply a phase preserving filter (WARNING!! takes a very long time for large scans)</span>
 <span class="n">correct_withwater</span> <span class="o">=</span> <span class="mi">0</span> <span class="c"># don&#39;t retain water column in radiometric correction (1 = retains water column for radiomatric corrections)</span>
 
 <span class="c"># for shadow removal</span>
@@ -516,7 +516,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="index.html" title="PyHum: Python program for reading and processing low-cost sidescan sonar data"
              >previous</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">PyHum 1.3.2 documentation</a> &raquo;</li> 
+        <li class="nav-item nav-item-0"><a href="index.html">PyHum 1.3.3 documentation</a> &raquo;</li> 
       </ul>
     </div>
     <div class="footer" role="contentinfo">
diff --git a/docs/_build/html/_sources/README.txt b/docs/_build/html/_sources/README.txt
index 8095f6f..0632ae5 100644
--- a/docs/_build/html/_sources/README.txt
+++ b/docs/_build/html/_sources/README.txt
@@ -237,7 +237,7 @@ which carries out the following operations::
           
    # correction specific settings
    maxW = 1000 # rms output wattage
-   dofilt = 1 # apply a phase preserving filter (WARNING!! takes a very long time for large scans)
+   dofilt = 0 # 1=apply a phase preserving filter (WARNING!! takes a very long time for large scans)
    correct_withwater = 0 # don't retain water column in radiometric correction (1 = retains water column for radiomatric corrections)
 
    # for shadow removal
diff --git a/docs/_build/html/examples.html b/docs/_build/html/examples.html
index fd3c8e9..85600c8 100644
--- a/docs/_build/html/examples.html
+++ b/docs/_build/html/examples.html
@@ -6,7 +6,7 @@
   <head>
     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
     
-    <title>&lt;no title&gt; &mdash; PyHum 1.3.2 documentation</title>
+    <title>&lt;no title&gt; &mdash; PyHum 1.3.3 documentation</title>
     
     <link rel="stylesheet" href="_static/classic.css" type="text/css" />
     <link rel="stylesheet" href="_static/pygments.css" type="text/css" />
@@ -14,7 +14,7 @@
     <script type="text/javascript">
       var DOCUMENTATION_OPTIONS = {
         URL_ROOT:    './',
-        VERSION:     '1.3.2',
+        VERSION:     '1.3.3',
         COLLAPSE_INDEX: false,
         FILE_SUFFIX: '.html',
         HAS_SOURCE:  true
@@ -23,7 +23,7 @@
     <script type="text/javascript" src="_static/jquery.js"></script>
     <script type="text/javascript" src="_static/underscore.js"></script>
     <script type="text/javascript" src="_static/doctools.js"></script>
-    <link rel="top" title="PyHum 1.3.2 documentation" href="index.html" />
+    <link rel="top" title="PyHum 1.3.3 documentation" href="index.html" />
     <link rel="prev" title="pyhum.e1e2 module" href="pyhum.e1e2.html" /> 
   </head>
   <body role="document">
@@ -36,7 +36,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="pyhum.e1e2.html" title="pyhum.e1e2 module"
              accesskey="P">previous</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">PyHum 1.3.2 documentation</a> &raquo;</li> 
+        <li class="nav-item nav-item-0"><a href="index.html">PyHum 1.3.3 documentation</a> &raquo;</li> 
       </ul>
     </div>  
 
@@ -99,7 +99,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="pyhum.e1e2.html" title="pyhum.e1e2 module"
              >previous</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">PyHum 1.3.2 documentation</a> &raquo;</li> 
+        <li class="nav-item nav-item-0"><a href="index.html">PyHum 1.3.3 documentation</a> &raquo;</li> 
       </ul>
     </div>
     <div class="footer" role="contentinfo">
diff --git a/docs/_build/html/genindex.html b/docs/_build/html/genindex.html
index 3ff83d2..a809b2d 100644
--- a/docs/_build/html/genindex.html
+++ b/docs/_build/html/genindex.html
@@ -7,7 +7,7 @@
   <head>
     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
     
-    <title>Index &mdash; PyHum 1.3.2 documentation</title>
+    <title>Index &mdash; PyHum 1.3.3 documentation</title>
     
     <link rel="stylesheet" href="_static/classic.css" type="text/css" />
     <link rel="stylesheet" href="_static/pygments.css" type="text/css" />
@@ -15,7 +15,7 @@
     <script type="text/javascript">
       var DOCUMENTATION_OPTIONS = {
         URL_ROOT:    './',
-        VERSION:     '1.3.2',
+        VERSION:     '1.3.3',
         COLLAPSE_INDEX: false,
         FILE_SUFFIX: '.html',
         HAS_SOURCE:  true
@@ -24,7 +24,7 @@
     <script type="text/javascript" src="_static/jquery.js"></script>
     <script type="text/javascript" src="_static/underscore.js"></script>
     <script type="text/javascript" src="_static/doctools.js"></script>
-    <link rel="top" title="PyHum 1.3.2 documentation" href="index.html" /> 
+    <link rel="top" title="PyHum 1.3.3 documentation" href="index.html" /> 
   </head>
   <body role="document">
     <div class="related" role="navigation" aria-label="related navigation">
@@ -33,7 +33,7 @@ <h3>Navigation</h3>
         <li class="right" style="margin-right: 10px">
           <a href="#" title="General Index"
              accesskey="I">index</a></li>
-        <li class="nav-item nav-item-0"><a href="index.html">PyHum 1.3.2 documentation</a> &raquo;</li> 
+        <li class="nav-item nav-item-0"><a href="index.html">PyHum 1.3.3 documentation</a> &raquo;</li> 
       </ul>
     </div>  
 
@@ -95,7 +95,7 @@ <h3>Navigation</h3>
         <li class="right" style="margin-right: 10px">
           <a href="#" title="General Index"
              >index</a></li>
-        <li class="nav-item nav-item-0"><a href="index.html">PyHum 1.3.2 documentation</a> &raquo;</li> 
+        <li class="nav-item nav-item-0"><a href="index.html">PyHum 1.3.3 documentation</a> &raquo;</li> 
       </ul>
     </div>
     <div class="footer" role="contentinfo">
diff --git a/docs/_build/html/index.html b/docs/_build/html/index.html
index 3e5cb79..dbbfc62 100644
--- a/docs/_build/html/index.html
+++ b/docs/_build/html/index.html
@@ -6,7 +6,7 @@
   <head>
     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
     
-    <title>PyHum: python module for Humminbird analysis &mdash; PyHum 1.3.2 documentation</title>
+    <title>PyHum: python module for Humminbird analysis &mdash; PyHum 1.3.3 documentation</title>
     
     <link rel="stylesheet" href="_static/classic.css" type="text/css" />
     <link rel="stylesheet" href="_static/pygments.css" type="text/css" />
@@ -14,7 +14,7 @@
     <script type="text/javascript">
       var DOCUMENTATION_OPTIONS = {
         URL_ROOT:    './',
-        VERSION:     '1.3.2',
+        VERSION:     '1.3.3',
         COLLAPSE_INDEX: false,
         FILE_SUFFIX: '.html',
         HAS_SOURCE:  true
@@ -23,7 +23,7 @@
     <script type="text/javascript" src="_static/jquery.js"></script>
     <script type="text/javascript" src="_static/underscore.js"></script>
     <script type="text/javascript" src="_static/doctools.js"></script>
-    <link rel="top" title="PyHum 1.3.2 documentation" href="#" />
+    <link rel="top" title="PyHum 1.3.3 documentation" href="#" />
     <link rel="next" title="Getting started" href="README.html" /> 
   </head>
   <body role="document">
@@ -36,7 +36,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="README.html" title="Getting started"
              accesskey="N">next</a> |</li>
-        <li class="nav-item nav-item-0"><a href="#">PyHum 1.3.2 documentation</a> &raquo;</li> 
+        <li class="nav-item nav-item-0"><a href="#">PyHum 1.3.3 documentation</a> &raquo;</li> 
       </ul>
     </div>  
 
@@ -161,7 +161,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="README.html" title="Getting started"
              >next</a> |</li>
-        <li class="nav-item nav-item-0"><a href="#">PyHum 1.3.2 documentation</a> &raquo;</li> 
+        <li class="nav-item nav-item-0"><a href="#">PyHum 1.3.3 documentation</a> &raquo;</li> 
       </ul>
     </div>
     <div class="footer" role="contentinfo">
diff --git a/docs/_build/html/modules.html b/docs/_build/html/modules.html
index b621d7a..42be424 100644
--- a/docs/_build/html/modules.html
+++ b/docs/_build/html/modules.html
@@ -6,7 +6,7 @@
   <head>
     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
     
-    <title>Modules &mdash; PyHum 1.3.2 documentation</title>
+    <title>Modules &mdash; PyHum 1.3.3 documentation</title>
     
     <link rel="stylesheet" href="_static/classic.css" type="text/css" />
     <link rel="stylesheet" href="_static/pygments.css" type="text/css" />
@@ -14,7 +14,7 @@
     <script type="text/javascript">
       var DOCUMENTATION_OPTIONS = {
         URL_ROOT:    './',
-        VERSION:     '1.3.2',
+        VERSION:     '1.3.3',
         COLLAPSE_INDEX: false,
         FILE_SUFFIX: '.html',
         HAS_SOURCE:  true
@@ -23,7 +23,7 @@
     <script type="text/javascript" src="_static/jquery.js"></script>
     <script type="text/javascript" src="_static/underscore.js"></script>
     <script type="text/javascript" src="_static/doctools.js"></script>
-    <link rel="top" title="PyHum 1.3.2 documentation" href="index.html" />
+    <link rel="top" title="PyHum 1.3.3 documentation" href="index.html" />
     <link rel="next" title="PyHum package" href="pyhum.html" />
     <link rel="prev" title="Getting started" href="README.html" /> 
   </head>
@@ -40,7 +40,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="README.html" title="Getting started"
              accesskey="P">previous</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">PyHum 1.3.2 documentation</a> &raquo;</li> 
+        <li class="nav-item nav-item-0"><a href="index.html">PyHum 1.3.3 documentation</a> &raquo;</li> 
       </ul>
     </div>  
 
@@ -135,7 +135,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="README.html" title="Getting started"
              >previous</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">PyHum 1.3.2 documentation</a> &raquo;</li> 
+        <li class="nav-item nav-item-0"><a href="index.html">PyHum 1.3.3 documentation</a> &raquo;</li> 
       </ul>
     </div>
     <div class="footer" role="contentinfo">
diff --git a/docs/_build/html/objects.inv b/docs/_build/html/objects.inv
index affd39a..141fda7 100644
Binary files a/docs/_build/html/objects.inv and b/docs/_build/html/objects.inv differ
diff --git a/docs/_build/html/pyhum.correct.html b/docs/_build/html/pyhum.correct.html
index b1e0613..1f0e58d 100644
--- a/docs/_build/html/pyhum.correct.html
+++ b/docs/_build/html/pyhum.correct.html
@@ -6,7 +6,7 @@
   <head>
     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
     
-    <title>pyhum.correct module &mdash; PyHum 1.3.2 documentation</title>
+    <title>pyhum.correct module &mdash; PyHum 1.3.3 documentation</title>
     
     <link rel="stylesheet" href="_static/classic.css" type="text/css" />
     <link rel="stylesheet" href="_static/pygments.css" type="text/css" />
@@ -14,7 +14,7 @@
     <script type="text/javascript">
       var DOCUMENTATION_OPTIONS = {
         URL_ROOT:    './',
-        VERSION:     '1.3.2',
+        VERSION:     '1.3.3',
         COLLAPSE_INDEX: false,
         FILE_SUFFIX: '.html',
         HAS_SOURCE:  true
@@ -23,7 +23,7 @@
     <script type="text/javascript" src="_static/jquery.js"></script>
     <script type="text/javascript" src="_static/underscore.js"></script>
     <script type="text/javascript" src="_static/doctools.js"></script>
-    <link rel="top" title="PyHum 1.3.2 documentation" href="index.html" />
+    <link rel="top" title="PyHum 1.3.3 documentation" href="index.html" />
     <link rel="up" title="PyHum package" href="pyhum.html" />
     <link rel="next" title="pyhum.rmshadows module" href="pyhum.rmshadows.html" />
     <link rel="prev" title="pyhum.read module" href="pyhum.read.html" /> 
@@ -41,7 +41,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="pyhum.read.html" title="pyhum.read module"
              accesskey="P">previous</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">PyHum 1.3.2 documentation</a> &raquo;</li>
+        <li class="nav-item nav-item-0"><a href="index.html">PyHum 1.3.3 documentation</a> &raquo;</li>
           <li class="nav-item nav-item-1"><a href="pyhum.html" accesskey="U">PyHum package</a> &raquo;</li> 
       </ul>
     </div>  
@@ -195,7 +195,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="pyhum.read.html" title="pyhum.read module"
              >previous</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">PyHum 1.3.2 documentation</a> &raquo;</li>
+        <li class="nav-item nav-item-0"><a href="index.html">PyHum 1.3.3 documentation</a> &raquo;</li>
           <li class="nav-item nav-item-1"><a href="pyhum.html" >PyHum package</a> &raquo;</li> 
       </ul>
     </div>
diff --git a/docs/_build/html/pyhum.e1e2.html b/docs/_build/html/pyhum.e1e2.html
index e813f54..7d0db6b 100644
--- a/docs/_build/html/pyhum.e1e2.html
+++ b/docs/_build/html/pyhum.e1e2.html
@@ -6,7 +6,7 @@
   <head>
     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
     
-    <title>pyhum.e1e2 module &mdash; PyHum 1.3.2 documentation</title>
+    <title>pyhum.e1e2 module &mdash; PyHum 1.3.3 documentation</title>
     
     <link rel="stylesheet" href="_static/classic.css" type="text/css" />
     <link rel="stylesheet" href="_static/pygments.css" type="text/css" />
@@ -14,7 +14,7 @@
     <script type="text/javascript">
       var DOCUMENTATION_OPTIONS = {
         URL_ROOT:    './',
-        VERSION:     '1.3.2',
+        VERSION:     '1.3.3',
         COLLAPSE_INDEX: false,
         FILE_SUFFIX: '.html',
         HAS_SOURCE:  true
@@ -23,7 +23,7 @@
     <script type="text/javascript" src="_static/jquery.js"></script>
     <script type="text/javascript" src="_static/underscore.js"></script>
     <script type="text/javascript" src="_static/doctools.js"></script>
-    <link rel="top" title="PyHum 1.3.2 documentation" href="index.html" />
+    <link rel="top" title="PyHum 1.3.3 documentation" href="index.html" />
     <link rel="up" title="PyHum package" href="pyhum.html" />
     <link rel="next" title="&lt;no title&gt;" href="examples.html" />
     <link rel="prev" title="pyhum.map_texture module" href="pyhum.map_texture.html" /> 
@@ -41,7 +41,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="pyhum.map_texture.html" title="pyhum.map_texture module"
              accesskey="P">previous</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">PyHum 1.3.2 documentation</a> &raquo;</li>
+        <li class="nav-item nav-item-0"><a href="index.html">PyHum 1.3.3 documentation</a> &raquo;</li>
           <li class="nav-item nav-item-1"><a href="pyhum.html" accesskey="U">PyHum package</a> &raquo;</li> 
       </ul>
     </div>  
@@ -207,7 +207,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="pyhum.map_texture.html" title="pyhum.map_texture module"
              >previous</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">PyHum 1.3.2 documentation</a> &raquo;</li>
+        <li class="nav-item nav-item-0"><a href="index.html">PyHum 1.3.3 documentation</a> &raquo;</li>
           <li class="nav-item nav-item-1"><a href="pyhum.html" >PyHum package</a> &raquo;</li> 
       </ul>
     </div>
diff --git a/docs/_build/html/pyhum.html b/docs/_build/html/pyhum.html
index 8d4eec6..c7848c5 100644
--- a/docs/_build/html/pyhum.html
+++ b/docs/_build/html/pyhum.html
@@ -6,7 +6,7 @@
   <head>
     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
     
-    <title>PyHum package &mdash; PyHum 1.3.2 documentation</title>
+    <title>PyHum package &mdash; PyHum 1.3.3 documentation</title>
     
     <link rel="stylesheet" href="_static/classic.css" type="text/css" />
     <link rel="stylesheet" href="_static/pygments.css" type="text/css" />
@@ -14,7 +14,7 @@
     <script type="text/javascript">
       var DOCUMENTATION_OPTIONS = {
         URL_ROOT:    './',
-        VERSION:     '1.3.2',
+        VERSION:     '1.3.3',
         COLLAPSE_INDEX: false,
         FILE_SUFFIX: '.html',
         HAS_SOURCE:  true
@@ -23,7 +23,7 @@
     <script type="text/javascript" src="_static/jquery.js"></script>
     <script type="text/javascript" src="_static/underscore.js"></script>
     <script type="text/javascript" src="_static/doctools.js"></script>
-    <link rel="top" title="PyHum 1.3.2 documentation" href="index.html" />
+    <link rel="top" title="PyHum 1.3.3 documentation" href="index.html" />
     <link rel="next" title="pyhum.read module" href="pyhum.read.html" />
     <link rel="prev" title="Modules" href="modules.html" /> 
   </head>
@@ -40,7 +40,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="modules.html" title="Modules"
              accesskey="P">previous</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">PyHum 1.3.2 documentation</a> &raquo;</li> 
+        <li class="nav-item nav-item-0"><a href="index.html">PyHum 1.3.3 documentation</a> &raquo;</li> 
       </ul>
     </div>  
 
@@ -171,7 +171,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="modules.html" title="Modules"
              >previous</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">PyHum 1.3.2 documentation</a> &raquo;</li> 
+        <li class="nav-item nav-item-0"><a href="index.html">PyHum 1.3.3 documentation</a> &raquo;</li> 
       </ul>
     </div>
     <div class="footer" role="contentinfo">
diff --git a/docs/_build/html/pyhum.map.html b/docs/_build/html/pyhum.map.html
index bb5476b..0e3953b 100644
--- a/docs/_build/html/pyhum.map.html
+++ b/docs/_build/html/pyhum.map.html
@@ -6,7 +6,7 @@
   <head>
     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
     
-    <title>pyhum.map module &mdash; PyHum 1.3.2 documentation</title>
+    <title>pyhum.map module &mdash; PyHum 1.3.3 documentation</title>
     
     <link rel="stylesheet" href="_static/classic.css" type="text/css" />
     <link rel="stylesheet" href="_static/pygments.css" type="text/css" />
@@ -14,7 +14,7 @@
     <script type="text/javascript">
       var DOCUMENTATION_OPTIONS = {
         URL_ROOT:    './',
-        VERSION:     '1.3.2',
+        VERSION:     '1.3.3',
         COLLAPSE_INDEX: false,
         FILE_SUFFIX: '.html',
         HAS_SOURCE:  true
@@ -23,7 +23,7 @@
     <script type="text/javascript" src="_static/jquery.js"></script>
     <script type="text/javascript" src="_static/underscore.js"></script>
     <script type="text/javascript" src="_static/doctools.js"></script>
-    <link rel="top" title="PyHum 1.3.2 documentation" href="index.html" />
+    <link rel="top" title="PyHum 1.3.3 documentation" href="index.html" />
     <link rel="up" title="PyHum package" href="pyhum.html" />
     <link rel="next" title="pyhum.map_texture module" href="pyhum.map_texture.html" />
     <link rel="prev" title="pyhum.texture module" href="pyhum.texture.html" /> 
@@ -41,7 +41,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="pyhum.texture.html" title="pyhum.texture module"
              accesskey="P">previous</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">PyHum 1.3.2 documentation</a> &raquo;</li>
+        <li class="nav-item nav-item-0"><a href="index.html">PyHum 1.3.3 documentation</a> &raquo;</li>
           <li class="nav-item nav-item-1"><a href="pyhum.html" accesskey="U">PyHum package</a> &raquo;</li> 
       </ul>
     </div>  
@@ -181,7 +181,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="pyhum.texture.html" title="pyhum.texture module"
              >previous</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">PyHum 1.3.2 documentation</a> &raquo;</li>
+        <li class="nav-item nav-item-0"><a href="index.html">PyHum 1.3.3 documentation</a> &raquo;</li>
           <li class="nav-item nav-item-1"><a href="pyhum.html" >PyHum package</a> &raquo;</li> 
       </ul>
     </div>
diff --git a/docs/_build/html/pyhum.map_texture.html b/docs/_build/html/pyhum.map_texture.html
index 7bea02a..920bd5e 100644
--- a/docs/_build/html/pyhum.map_texture.html
+++ b/docs/_build/html/pyhum.map_texture.html
@@ -6,7 +6,7 @@
   <head>
     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
     
-    <title>pyhum.map_texture module &mdash; PyHum 1.3.2 documentation</title>
+    <title>pyhum.map_texture module &mdash; PyHum 1.3.3 documentation</title>
     
     <link rel="stylesheet" href="_static/classic.css" type="text/css" />
     <link rel="stylesheet" href="_static/pygments.css" type="text/css" />
@@ -14,7 +14,7 @@
     <script type="text/javascript">
       var DOCUMENTATION_OPTIONS = {
         URL_ROOT:    './',
-        VERSION:     '1.3.2',
+        VERSION:     '1.3.3',
         COLLAPSE_INDEX: false,
         FILE_SUFFIX: '.html',
         HAS_SOURCE:  true
@@ -23,7 +23,7 @@
     <script type="text/javascript" src="_static/jquery.js"></script>
     <script type="text/javascript" src="_static/underscore.js"></script>
     <script type="text/javascript" src="_static/doctools.js"></script>
-    <link rel="top" title="PyHum 1.3.2 documentation" href="index.html" />
+    <link rel="top" title="PyHum 1.3.3 documentation" href="index.html" />
     <link rel="up" title="PyHum package" href="pyhum.html" />
     <link rel="next" title="pyhum.e1e2 module" href="pyhum.e1e2.html" />
     <link rel="prev" title="pyhum.map module" href="pyhum.map.html" /> 
@@ -41,7 +41,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="pyhum.map.html" title="pyhum.map module"
              accesskey="P">previous</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">PyHum 1.3.2 documentation</a> &raquo;</li>
+        <li class="nav-item nav-item-0"><a href="index.html">PyHum 1.3.3 documentation</a> &raquo;</li>
           <li class="nav-item nav-item-1"><a href="pyhum.html" accesskey="U">PyHum package</a> &raquo;</li> 
       </ul>
     </div>  
@@ -203,7 +203,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="pyhum.map.html" title="pyhum.map module"
              >previous</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">PyHum 1.3.2 documentation</a> &raquo;</li>
+        <li class="nav-item nav-item-0"><a href="index.html">PyHum 1.3.3 documentation</a> &raquo;</li>
           <li class="nav-item nav-item-1"><a href="pyhum.html" >PyHum package</a> &raquo;</li> 
       </ul>
     </div>
diff --git a/docs/_build/html/pyhum.read.html b/docs/_build/html/pyhum.read.html
index 1656c38..3551aae 100644
--- a/docs/_build/html/pyhum.read.html
+++ b/docs/_build/html/pyhum.read.html
@@ -6,7 +6,7 @@
   <head>
     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
     
-    <title>pyhum.read module &mdash; PyHum 1.3.2 documentation</title>
+    <title>pyhum.read module &mdash; PyHum 1.3.3 documentation</title>
     
     <link rel="stylesheet" href="_static/classic.css" type="text/css" />
     <link rel="stylesheet" href="_static/pygments.css" type="text/css" />
@@ -14,7 +14,7 @@
     <script type="text/javascript">
       var DOCUMENTATION_OPTIONS = {
         URL_ROOT:    './',
-        VERSION:     '1.3.2',
+        VERSION:     '1.3.3',
         COLLAPSE_INDEX: false,
         FILE_SUFFIX: '.html',
         HAS_SOURCE:  true
@@ -23,7 +23,7 @@
     <script type="text/javascript" src="_static/jquery.js"></script>
     <script type="text/javascript" src="_static/underscore.js"></script>
     <script type="text/javascript" src="_static/doctools.js"></script>
-    <link rel="top" title="PyHum 1.3.2 documentation" href="index.html" />
+    <link rel="top" title="PyHum 1.3.3 documentation" href="index.html" />
     <link rel="up" title="PyHum package" href="pyhum.html" />
     <link rel="next" title="pyhum.correct module" href="pyhum.correct.html" />
     <link rel="prev" title="PyHum package" href="pyhum.html" /> 
@@ -41,7 +41,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="pyhum.html" title="PyHum package"
              accesskey="P">previous</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">PyHum 1.3.2 documentation</a> &raquo;</li>
+        <li class="nav-item nav-item-0"><a href="index.html">PyHum 1.3.3 documentation</a> &raquo;</li>
           <li class="nav-item nav-item-1"><a href="pyhum.html" accesskey="U">PyHum package</a> &raquo;</li> 
       </ul>
     </div>  
@@ -239,7 +239,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="pyhum.html" title="PyHum package"
              >previous</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">PyHum 1.3.2 documentation</a> &raquo;</li>
+        <li class="nav-item nav-item-0"><a href="index.html">PyHum 1.3.3 documentation</a> &raquo;</li>
           <li class="nav-item nav-item-1"><a href="pyhum.html" >PyHum package</a> &raquo;</li> 
       </ul>
     </div>
diff --git a/docs/_build/html/pyhum.rmshadows.html b/docs/_build/html/pyhum.rmshadows.html
index 00c5565..329bb1a 100644
--- a/docs/_build/html/pyhum.rmshadows.html
+++ b/docs/_build/html/pyhum.rmshadows.html
@@ -6,7 +6,7 @@
   <head>
     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
     
-    <title>pyhum.rmshadows module &mdash; PyHum 1.3.2 documentation</title>
+    <title>pyhum.rmshadows module &mdash; PyHum 1.3.3 documentation</title>
     
     <link rel="stylesheet" href="_static/classic.css" type="text/css" />
     <link rel="stylesheet" href="_static/pygments.css" type="text/css" />
@@ -14,7 +14,7 @@
     <script type="text/javascript">
       var DOCUMENTATION_OPTIONS = {
         URL_ROOT:    './',
-        VERSION:     '1.3.2',
+        VERSION:     '1.3.3',
         COLLAPSE_INDEX: false,
         FILE_SUFFIX: '.html',
         HAS_SOURCE:  true
@@ -23,7 +23,7 @@
     <script type="text/javascript" src="_static/jquery.js"></script>
     <script type="text/javascript" src="_static/underscore.js"></script>
     <script type="text/javascript" src="_static/doctools.js"></script>
-    <link rel="top" title="PyHum 1.3.2 documentation" href="index.html" />
+    <link rel="top" title="PyHum 1.3.3 documentation" href="index.html" />
     <link rel="up" title="PyHum package" href="pyhum.html" />
     <link rel="next" title="pyhum.texture module" href="pyhum.texture.html" />
     <link rel="prev" title="pyhum.correct module" href="pyhum.correct.html" /> 
@@ -41,7 +41,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="pyhum.correct.html" title="pyhum.correct module"
              accesskey="P">previous</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">PyHum 1.3.2 documentation</a> &raquo;</li>
+        <li class="nav-item nav-item-0"><a href="index.html">PyHum 1.3.3 documentation</a> &raquo;</li>
           <li class="nav-item nav-item-1"><a href="pyhum.html" accesskey="U">PyHum package</a> &raquo;</li> 
       </ul>
     </div>  
@@ -171,7 +171,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="pyhum.correct.html" title="pyhum.correct module"
              >previous</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">PyHum 1.3.2 documentation</a> &raquo;</li>
+        <li class="nav-item nav-item-0"><a href="index.html">PyHum 1.3.3 documentation</a> &raquo;</li>
           <li class="nav-item nav-item-1"><a href="pyhum.html" >PyHum package</a> &raquo;</li> 
       </ul>
     </div>
diff --git a/docs/_build/html/pyhum.texture.html b/docs/_build/html/pyhum.texture.html
index 3bb81cb..b0ea54d 100644
--- a/docs/_build/html/pyhum.texture.html
+++ b/docs/_build/html/pyhum.texture.html
@@ -6,7 +6,7 @@
   <head>
     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
     
-    <title>pyhum.texture module &mdash; PyHum 1.3.2 documentation</title>
+    <title>pyhum.texture module &mdash; PyHum 1.3.3 documentation</title>
     
     <link rel="stylesheet" href="_static/classic.css" type="text/css" />
     <link rel="stylesheet" href="_static/pygments.css" type="text/css" />
@@ -14,7 +14,7 @@
     <script type="text/javascript">
       var DOCUMENTATION_OPTIONS = {
         URL_ROOT:    './',
-        VERSION:     '1.3.2',
+        VERSION:     '1.3.3',
         COLLAPSE_INDEX: false,
         FILE_SUFFIX: '.html',
         HAS_SOURCE:  true
@@ -23,7 +23,7 @@
     <script type="text/javascript" src="_static/jquery.js"></script>
     <script type="text/javascript" src="_static/underscore.js"></script>
     <script type="text/javascript" src="_static/doctools.js"></script>
-    <link rel="top" title="PyHum 1.3.2 documentation" href="index.html" />
+    <link rel="top" title="PyHum 1.3.3 documentation" href="index.html" />
     <link rel="up" title="PyHum package" href="pyhum.html" />
     <link rel="next" title="pyhum.map module" href="pyhum.map.html" />
     <link rel="prev" title="pyhum.rmshadows module" href="pyhum.rmshadows.html" /> 
@@ -41,7 +41,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="pyhum.rmshadows.html" title="pyhum.rmshadows module"
              accesskey="P">previous</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">PyHum 1.3.2 documentation</a> &raquo;</li>
+        <li class="nav-item nav-item-0"><a href="index.html">PyHum 1.3.3 documentation</a> &raquo;</li>
           <li class="nav-item nav-item-1"><a href="pyhum.html" accesskey="U">PyHum package</a> &raquo;</li> 
       </ul>
     </div>  
@@ -185,7 +185,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="pyhum.rmshadows.html" title="pyhum.rmshadows module"
              >previous</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">PyHum 1.3.2 documentation</a> &raquo;</li>
+        <li class="nav-item nav-item-0"><a href="index.html">PyHum 1.3.3 documentation</a> &raquo;</li>
           <li class="nav-item nav-item-1"><a href="pyhum.html" >PyHum package</a> &raquo;</li> 
       </ul>
     </div>
diff --git a/docs/_build/html/search.html b/docs/_build/html/search.html
index 08ec440..b88e2db 100644
--- a/docs/_build/html/search.html
+++ b/docs/_build/html/search.html
@@ -6,7 +6,7 @@
   <head>
     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
     
-    <title>Search &mdash; PyHum 1.3.2 documentation</title>
+    <title>Search &mdash; PyHum 1.3.3 documentation</title>
     
     <link rel="stylesheet" href="_static/classic.css" type="text/css" />
     <link rel="stylesheet" href="_static/pygments.css" type="text/css" />
@@ -14,7 +14,7 @@
     <script type="text/javascript">
       var DOCUMENTATION_OPTIONS = {
         URL_ROOT:    './',
-        VERSION:     '1.3.2',
+        VERSION:     '1.3.3',
         COLLAPSE_INDEX: false,
         FILE_SUFFIX: '.html',
         HAS_SOURCE:  true
@@ -24,7 +24,7 @@
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     <script type="text/javascript" src="_static/doctools.js"></script>
     <script type="text/javascript" src="_static/searchtools.js"></script>
-    <link rel="top" title="PyHum 1.3.2 documentation" href="index.html" />
+    <link rel="top" title="PyHum 1.3.3 documentation" href="index.html" />
   <script type="text/javascript">
     jQuery(function() { Search.loadIndex("searchindex.js"); });
   </script>
@@ -40,7 +40,7 @@ <h3>Navigation</h3>
         <li class="right" style="margin-right: 10px">
           <a href="genindex.html" title="General Index"
              accesskey="I">index</a></li>
-        <li class="nav-item nav-item-0"><a href="index.html">PyHum 1.3.2 documentation</a> &raquo;</li> 
+        <li class="nav-item nav-item-0"><a href="index.html">PyHum 1.3.3 documentation</a> &raquo;</li> 
       </ul>
     </div>  
 
@@ -102,7 +102,7 @@ <h3>Navigation</h3>
         <li class="right" style="margin-right: 10px">
           <a href="genindex.html" title="General Index"
              >index</a></li>
-        <li class="nav-item nav-item-0"><a href="index.html">PyHum 1.3.2 documentation</a> &raquo;</li> 
+        <li class="nav-item nav-item-0"><a href="index.html">PyHum 1.3.3 documentation</a> &raquo;</li> 
       </ul>
     </div>
     <div class="footer" role="contentinfo">