1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
|
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
<meta http-equiv="X-UA-Compatible" content="IE=9"/>
<title>FreeMat: vtkImageGradient</title>
<link href="tabs.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript" src="dynsections.js"></script>
<link href="navtree.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="resize.js"></script>
<script type="text/javascript" src="navtree.js"></script>
<script type="text/javascript">
$(document).ready(initResizable);
</script>
<link href="doxygen.css" rel="stylesheet" type="text/css" />
</head>
<body>
<div id="top"><!-- do not remove this div, it is closed by doxygen! -->
<div id="titlearea">
<table cellspacing="0" cellpadding="0">
<tbody>
<tr style="height: 56px;">
<td style="padding-left: 0.5em;">
<div id="projectname">FreeMat
</div>
</td>
</tr>
</tbody>
</table>
</div>
<!-- end header part -->
<!-- Generated by Doxygen 1.8.1.1 -->
<div id="navrow1" class="tabs">
<ul class="tablist">
<li><a href="index.html"><span>Main Page</span></a></li>
<li class="current"><a href="pages.html"><span>Related Pages</span></a></li>
</ul>
</div>
</div><!-- top -->
<div id="side-nav" class="ui-resizable side-nav-resizable">
<div id="nav-tree">
<div id="nav-tree-contents">
</div>
</div>
<div id="splitbar" style="-moz-user-select:none;"
class="ui-resizable-handle">
</div>
</div>
<script type="text/javascript">
$(document).ready(function(){initNavTree('vtkimaging_vtkimagegradient.html','');});
</script>
<div id="doc-content">
<div class="header">
<div class="headertitle">
<div class="title">vtkImageGradient </div> </div>
</div><!--header-->
<div class="contents">
<div class="textblock"><p>Section: <a class="el" href="sec_vtkimaging.html">Visualization Toolkit Imaging Classes</a> </p>
<h1><a class="anchor" id="Usage"></a>
Usage</h1>
<p>vtkImageGradient computes the gradient vector of an image. The vector results are stored as scalar components. The Dimensionality determines whether to perform a 2d or 3d gradient. The default is two dimensional XY gradient. OutputScalarType is always double. Gradient is computed using central differences.</p>
<p>To create an instance of class vtkImageGradient, simply invoke its constructor as follows </p>
<pre class="fragment"> obj = vtkImageGradient
</pre> <h1><a class="anchor" id="Methods"></a>
Methods</h1>
<p>The class vtkImageGradient has several methods that can be used. They are listed below. Note that the documentation is translated automatically from the VTK sources, and may not be completely intelligible. When in doubt, consult the VTK website. In the methods listed below, <code>obj</code> is an instance of the vtkImageGradient class. </p>
<ul>
<li>
<code>string = obj.GetClassName ()</code> </li>
<li>
<code>int = obj.IsA (string name)</code> </li>
<li>
<code>vtkImageGradient = obj.NewInstance ()</code> </li>
<li>
<code>vtkImageGradient = obj.SafeDownCast (vtkObject o)</code> </li>
<li>
<code>obj.SetDimensionality (int )</code> - Determines how the input is interpreted (set of 2d slices ...) </li>
<li>
<code>int = obj.GetDimensionalityMinValue ()</code> - Determines how the input is interpreted (set of 2d slices ...) </li>
<li>
<code>int = obj.GetDimensionalityMaxValue ()</code> - Determines how the input is interpreted (set of 2d slices ...) </li>
<li>
<code>int = obj.GetDimensionality ()</code> - Determines how the input is interpreted (set of 2d slices ...) </li>
<li>
<code>obj.SetHandleBoundaries (int )</code> - Get/Set whether to handle boundaries. If enabled, boundary pixels are treated as duplicated so that central differencing works for the boundary pixels. If disabled, the output whole extent of the image is reduced by one pixel. </li>
<li>
<code>int = obj.GetHandleBoundaries ()</code> - Get/Set whether to handle boundaries. If enabled, boundary pixels are treated as duplicated so that central differencing works for the boundary pixels. If disabled, the output whole extent of the image is reduced by one pixel. </li>
<li>
<code>obj.HandleBoundariesOn ()</code> - Get/Set whether to handle boundaries. If enabled, boundary pixels are treated as duplicated so that central differencing works for the boundary pixels. If disabled, the output whole extent of the image is reduced by one pixel. </li>
<li>
<code>obj.HandleBoundariesOff ()</code> - Get/Set whether to handle boundaries. If enabled, boundary pixels are treated as duplicated so that central differencing works for the boundary pixels. If disabled, the output whole extent of the image is reduced by one pixel. </li>
</ul>
</div></div><!-- contents -->
</div><!-- doc-content -->
<!-- start footer part -->
<div id="nav-path" class="navpath"><!-- id is needed for treeview function! -->
<ul>
<li class="navelem"><a class="el" href="index.html">FreeMat Documentation</a></li><li class="navelem"><a class="el" href="sec_vtkimaging.html">Visualization Toolkit Imaging Classes</a></li>
<li class="footer">Generated on Thu Jul 25 2013 17:18:33 for FreeMat by
<a href="http://www.doxygen.org/index.html">
<img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.8.1.1 </li>
</ul>
</div>
</body>
</html>
|
