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<td class="title">Connected Operators</td>
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<h1>mmhmax
<br>
<span class="subtitle">Remove peaks with contrast less than h.
</span>
</h1>
<div class="synopsis">
<H2>Synopsis</H2>
<div class="H2">
<div class="prototype">y =
<span class="fun">mmhmax</span>(
<span class="par">f</span>,
<span class="par">h</span> = 1,
<span class="par">Bc</span> = None
)
</div>
<p>Implemented in
<b>Python.</b>
</p>
<div class="input">
<H3>Input</H3>
<div class="H3">
<table class="deflist">
<tbody valign="baseline">
<tr>
<td class="term"><span class="par">f</span></td>
<td class="def"><span class="type"><a href="../mmtypes/mmImage.html">Image</a></span> Gray-scale (uint8 or uint16) image.
</td>
</tr>
<tr>
<td class="term"><span class="par">h</span></td>
<td class="def"><span class="type"><a href="../mmtypes/mmDouble.html">Double</a></span><p>Contrast parameter.</p><p>Default:
<code>1</code>
</p></td>
</tr>
<tr>
<td class="term"><span class="par">Bc</span></td>
<td class="def"><span class="type"><a href="../mmtypes/mmSe.html">Structuring Element</a></span><p>Structuring element ( connectivity).</p><p>Default:
<code>None</code> (3x3 elementary cross)
</p></td>
</tr>
</tbody>
</table>
</div>
</div>
<div class="output">
<H3>Output</H3>
<div class="H3">
<table class="deflist">
<tbody valign="baseline">
<tr>
<td class="term"><span class="par">y</span></td>
<td class="def"><span class="type"><a href="../mmtypes/mmImage.html">Image</a></span> Gray-scale (uint8 or uint16) or binary image.
</td>
</tr>
</tbody>
</table>
</div>
</div>
</div>
</div>
<div class="descr">
<H2>Description</H2>
<div class="H2">
<p>
<span class="fun">mmhmax</span> inf-reconstructs the gray-scale image
<code>f</code> from the marker created by the subtraction of the positive integer value
<code>h</code> from
<code>f</code>, using connectivity
<code>Bc</code>. This operator removes connected peaks with contrast less than
<code>h</code>.
</p>
</div>
</div>
<div class="examples">
<H2>Examples</H2>
<div class="H2">
<p>
<div class="bridge">Numerical example:</div>
<div class="example">
<div class="listing">
<pre class="user">>>> a = uint8([
[4, 3, 6, 1, 3, 5, 2],
[2, 9, 6, 1, 6, 7, 3],
[8, 9, 3, 2, 4, 9, 4],
[3, 1, 2, 1, 2, 4, 2]])</pre>
<pre class="computer"></pre>
<pre class="user">>>> print mmhmax(a,2,mmsebox())</pre>
<pre class="computer">[[4 3 6 1 3 5 2]
[2 7 6 1 6 7 3]
[7 7 3 2 4 7 4]
[3 1 2 1 2 4 2]]</pre>
</div>
</div>
<div class="bridge">Signal example:</div>
<div class="bridge">Image example:</div>
<div class="example">
<div class="listing">
<pre class="user">>>> f = mmreadgray('r4x2_256.tif')</pre>
<pre class="computer"></pre>
<pre class="user">>>> mmshow(f)</pre>
<pre class="computer"></pre>
<pre class="user">>>> fb = mmhmax(f,50)</pre>
<pre class="computer"></pre>
<pre class="user">>>> mmshow(fb)</pre>
<pre class="computer"></pre>
<pre class="user">>>> mmshow(mmregmax(fb))</pre>
<pre class="computer"></pre>
</div>
<table class="images">
<tbody align="center">
<tr class="image" valign="bottom">
<td><img width="254" src="../images/img_mmhmax_001.jpg"></td>
<td><img width="254" src="../images/img_mmhmax_002.jpg"></td>
<td class="spare"></td>
</tr>
<tr class="title" valign="baseline">
<td><a href="../images/img_mmhmax_001.jpg">f</a></td>
<td><a href="../images/img_mmhmax_002.jpg">fb</a></td>
<td class="spare"></td>
</tr>
</tbody>
</table>
<table class="images">
<tbody align="center">
<tr class="image" valign="bottom">
<td><img width="254" src="../images/img_mmhmax_003.jpg"></td>
<td class="spare"></td>
</tr>
<tr class="title" valign="baseline">
<td><a href="../images/img_mmhmax_003.jpg">mmregmax(fb)</a></td>
<td class="spare"></td>
</tr>
</tbody>
</table>
</div>
</p>
</div>
</div>
<div class="equation">
<H2>Equation</H2>
<div class="H2">
<p>
<div class="eqfig">
<img src="../images/eq_mmhmax001.png">
</div>
</p>
</div>
</div>
<div class="sourcecode">
<H2>Source Code</H2>
<div class="H2">
<pre class="listing">
def mmhmax(f, h=1, Bc=None):
if Bc is None: Bc = mmsecross()
g = mmsubm(f,h)
y = mminfrec(g,f,Bc);
return y
</pre>
</div>
</div>
<div class="seealso">
<H2>See also</H2>
<div class="H2">
<table class="deflist">
<tbody valign="baseline">
<tr>
<td class="term"><a href="../morph/mmsecross.html">mmsecross</a></td>
<td class="def">Diamond structuring element and elementary 3x3 cross.</td>
</tr>
<tr>
<td class="term"><a href="../morph/mmsebox.html">mmsebox</a></td>
<td class="def">Create a box structuring element.</td>
</tr>
<tr>
<td class="term"><a href="../morph/mmfreedom.html">mmfreedom</a></td>
<td class="def">Control automatic data type conversion.</td>
</tr>
<tr>
<td class="term"><a href="../morph/mmhmin.html">mmhmin</a></td>
<td class="def">Remove basins with contrast less than h.</td>
</tr>
<tr>
<td class="term"><a href="../morph/mmareaopen.html">mmareaopen</a></td>
<td class="def">Area opening</td>
</tr>
</tbody>
</table>
</div>
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<td class="copyright">Copyright (c) 2003, Roberto A. Lotufo, UNICAMP-University of Campinas; Rubens C. Machado, CenPRA-Renato Archer Research Center.</td>
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distrib
>
Mandriva
>
2010.0
>
i586
>
media
>
contrib-release
>
by-pkgid
>
4a71d9984febeb5a206904a5a379841a
>
files
>
694
