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<title>AKAZE (OpenCV 4.5.5 Java documentation)</title>
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<div class="subTitle">org.opencv.features2d</div>
<h2 title="Class AKAZE" class="title">Class AKAZE</h2>
</div>
<div class="contentContainer">
<ul class="inheritance">
<li>java.lang.Object</li>
<li>
<ul class="inheritance">
<li><a href="../../../org/opencv/core/Algorithm.html" title="class in org.opencv.core">org.opencv.core.Algorithm</a></li>
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<li>org.opencv.features2d.AKAZE</li>
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<pre>public class <span class="typeNameLabel">AKAZE</span>
extends <a href="../../../org/opencv/features2d/Feature2D.html" title="class in org.opencv.features2d">Feature2D</a></pre>
<div class="block">Class implementing the AKAZE keypoint detector and descriptor extractor, described in CITE: ANB13.
AKAZE descriptors can only be used with KAZE or AKAZE keypoints. This class is thread-safe.
<b>Note:</b> When you need descriptors use Feature2D::detectAndCompute, which
provides better performance. When using Feature2D::detect followed by
Feature2D::compute scale space pyramid is computed twice.
<b>Note:</b> AKAZE implements T-API. When image is passed as UMat some parts of the algorithm
will use OpenCL.
<b>Note:</b> [ANB13] Fast Explicit Diffusion for Accelerated Features in Nonlinear
Scale Spaces. Pablo F. Alcantarilla, Jesús Nuevo and Adrien Bartoli. In
British Machine Vision Conference (BMVC), Bristol, UK, September 2013.</div>
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<caption><span>Fields</span><span class="tabEnd">&nbsp;</span></caption>
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<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Field and Description</th>
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<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/opencv/features2d/AKAZE.html#DESCRIPTOR_KAZE">DESCRIPTOR_KAZE</a></span></code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/opencv/features2d/AKAZE.html#DESCRIPTOR_KAZE_UPRIGHT">DESCRIPTOR_KAZE_UPRIGHT</a></span></code>&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/opencv/features2d/AKAZE.html#DESCRIPTOR_MLDB">DESCRIPTOR_MLDB</a></span></code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/opencv/features2d/AKAZE.html#DESCRIPTOR_MLDB_UPRIGHT">DESCRIPTOR_MLDB_UPRIGHT</a></span></code>&nbsp;</td>
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<td class="colFirst"><code>static <a href="../../../org/opencv/features2d/AKAZE.html" title="class in org.opencv.features2d">AKAZE</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/opencv/features2d/AKAZE.html#Z:Z__fromPtr__-long-">__fromPtr__</a></span>(long&nbsp;addr)</code>&nbsp;</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code>static <a href="../../../org/opencv/features2d/AKAZE.html" title="class in org.opencv.features2d">AKAZE</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/opencv/features2d/AKAZE.html#create--">create</a></span>()</code>
<div class="block">The AKAZE constructor
DESCRIPTOR_KAZE_UPRIGHT, DESCRIPTOR_MLDB or DESCRIPTOR_MLDB_UPRIGHT.</div>
</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code>static <a href="../../../org/opencv/features2d/AKAZE.html" title="class in org.opencv.features2d">AKAZE</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/opencv/features2d/AKAZE.html#create-int-">create</a></span>(int&nbsp;descriptor_type)</code>
<div class="block">The AKAZE constructor</div>
</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code>static <a href="../../../org/opencv/features2d/AKAZE.html" title="class in org.opencv.features2d">AKAZE</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/opencv/features2d/AKAZE.html#create-int-int-">create</a></span>(int&nbsp;descriptor_type,
int&nbsp;descriptor_size)</code>
<div class="block">The AKAZE constructor</div>
</td>
</tr>
<tr id="i4" class="altColor">
<td class="colFirst"><code>static <a href="../../../org/opencv/features2d/AKAZE.html" title="class in org.opencv.features2d">AKAZE</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/opencv/features2d/AKAZE.html#create-int-int-int-">create</a></span>(int&nbsp;descriptor_type,
int&nbsp;descriptor_size,
int&nbsp;descriptor_channels)</code>
<div class="block">The AKAZE constructor</div>
</td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code>static <a href="../../../org/opencv/features2d/AKAZE.html" title="class in org.opencv.features2d">AKAZE</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/opencv/features2d/AKAZE.html#create-int-int-int-float-">create</a></span>(int&nbsp;descriptor_type,
int&nbsp;descriptor_size,
int&nbsp;descriptor_channels,
float&nbsp;threshold)</code>
<div class="block">The AKAZE constructor</div>
</td>
</tr>
<tr id="i6" class="altColor">
<td class="colFirst"><code>static <a href="../../../org/opencv/features2d/AKAZE.html" title="class in org.opencv.features2d">AKAZE</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/opencv/features2d/AKAZE.html#create-int-int-int-float-int-">create</a></span>(int&nbsp;descriptor_type,
int&nbsp;descriptor_size,
int&nbsp;descriptor_channels,
float&nbsp;threshold,
int&nbsp;nOctaves)</code>
<div class="block">The AKAZE constructor</div>
</td>
</tr>
<tr id="i7" class="rowColor">
<td class="colFirst"><code>static <a href="../../../org/opencv/features2d/AKAZE.html" title="class in org.opencv.features2d">AKAZE</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/opencv/features2d/AKAZE.html#create-int-int-int-float-int-int-">create</a></span>(int&nbsp;descriptor_type,
int&nbsp;descriptor_size,
int&nbsp;descriptor_channels,
float&nbsp;threshold,
int&nbsp;nOctaves,
int&nbsp;nOctaveLayers)</code>
<div class="block">The AKAZE constructor</div>
</td>
</tr>
<tr id="i8" class="altColor">
<td class="colFirst"><code>static <a href="../../../org/opencv/features2d/AKAZE.html" title="class in org.opencv.features2d">AKAZE</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/opencv/features2d/AKAZE.html#create-int-int-int-float-int-int-int-">create</a></span>(int&nbsp;descriptor_type,
int&nbsp;descriptor_size,
int&nbsp;descriptor_channels,
float&nbsp;threshold,
int&nbsp;nOctaves,
int&nbsp;nOctaveLayers,
int&nbsp;diffusivity)</code>
<div class="block">The AKAZE constructor</div>
</td>
</tr>
<tr id="i9" class="rowColor">
<td class="colFirst"><code>java.lang.String</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/opencv/features2d/AKAZE.html#getDefaultName--">getDefaultName</a></span>()</code>
<div class="block">Returns the algorithm string identifier.</div>
</td>
</tr>
<tr id="i10" class="altColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/opencv/features2d/AKAZE.html#getDescriptorChannels--">getDescriptorChannels</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i11" class="rowColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/opencv/features2d/AKAZE.html#getDescriptorSize--">getDescriptorSize</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i12" class="altColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/opencv/features2d/AKAZE.html#getDescriptorType--">getDescriptorType</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i13" class="rowColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/opencv/features2d/AKAZE.html#getDiffusivity--">getDiffusivity</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i14" class="altColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/opencv/features2d/AKAZE.html#getNOctaveLayers--">getNOctaveLayers</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i15" class="rowColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/opencv/features2d/AKAZE.html#getNOctaves--">getNOctaves</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i16" class="altColor">
<td class="colFirst"><code>double</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/opencv/features2d/AKAZE.html#getThreshold--">getThreshold</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i17" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/opencv/features2d/AKAZE.html#setDescriptorChannels-int-">setDescriptorChannels</a></span>(int&nbsp;dch)</code>&nbsp;</td>
</tr>
<tr id="i18" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/opencv/features2d/AKAZE.html#setDescriptorSize-int-">setDescriptorSize</a></span>(int&nbsp;dsize)</code>&nbsp;</td>
</tr>
<tr id="i19" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/opencv/features2d/AKAZE.html#setDescriptorType-int-">setDescriptorType</a></span>(int&nbsp;dtype)</code>&nbsp;</td>
</tr>
<tr id="i20" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/opencv/features2d/AKAZE.html#setDiffusivity-int-">setDiffusivity</a></span>(int&nbsp;diff)</code>&nbsp;</td>
</tr>
<tr id="i21" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/opencv/features2d/AKAZE.html#setNOctaveLayers-int-">setNOctaveLayers</a></span>(int&nbsp;octaveLayers)</code>&nbsp;</td>
</tr>
<tr id="i22" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/opencv/features2d/AKAZE.html#setNOctaves-int-">setNOctaves</a></span>(int&nbsp;octaves)</code>&nbsp;</td>
</tr>
<tr id="i23" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/opencv/features2d/AKAZE.html#setThreshold-double-">setThreshold</a></span>(double&nbsp;threshold)</code>&nbsp;</td>
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<code><a href="../../../org/opencv/features2d/Feature2D.html#compute-java.util.List-java.util.List-java.util.List-">compute</a>, <a href="../../../org/opencv/features2d/Feature2D.html#compute-org.opencv.core.Mat-org.opencv.core.MatOfKeyPoint-org.opencv.core.Mat-">compute</a>, <a href="../../../org/opencv/features2d/Feature2D.html#defaultNorm--">defaultNorm</a>, <a href="../../../org/opencv/features2d/Feature2D.html#descriptorSize--">descriptorSize</a>, <a href="../../../org/opencv/features2d/Feature2D.html#descriptorType--">descriptorType</a>, <a href="../../../org/opencv/features2d/Feature2D.html#detect-java.util.List-java.util.List-">detect</a>, <a href="../../../org/opencv/features2d/Feature2D.html#detect-java.util.List-java.util.List-java.util.List-">detect</a>, <a href="../../../org/opencv/features2d/Feature2D.html#detect-org.opencv.core.Mat-org.opencv.core.MatOfKeyPoint-">detect</a>, <a href="../../../org/opencv/features2d/Feature2D.html#detect-org.opencv.core.Mat-org.opencv.core.MatOfKeyPoint-org.opencv.core.Mat-">detect</a>, <a href="../../../org/opencv/features2d/Feature2D.html#detectAndCompute-org.opencv.core.Mat-org.opencv.core.Mat-org.opencv.core.MatOfKeyPoint-org.opencv.core.Mat-">detectAndCompute</a>, <a href="../../../org/opencv/features2d/Feature2D.html#detectAndCompute-org.opencv.core.Mat-org.opencv.core.Mat-org.opencv.core.MatOfKeyPoint-org.opencv.core.Mat-boolean-">detectAndCompute</a>, <a href="../../../org/opencv/features2d/Feature2D.html#empty--">empty</a>, <a href="../../../org/opencv/features2d/Feature2D.html#read-java.lang.String-">read</a>, <a href="../../../org/opencv/features2d/Feature2D.html#write-java.lang.String-">write</a></code></li>
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<h3>Methods inherited from class&nbsp;org.opencv.core.<a href="../../../org/opencv/core/Algorithm.html" title="class in org.opencv.core">Algorithm</a></h3>
<code><a href="../../../org/opencv/core/Algorithm.html#clear--">clear</a>, <a href="../../../org/opencv/core/Algorithm.html#getNativeObjAddr--">getNativeObjAddr</a>, <a href="../../../org/opencv/core/Algorithm.html#save-java.lang.String-">save</a></code></li>
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<h3>Methods inherited from class&nbsp;java.lang.Object</h3>
<code>equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</code></li>
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<h4>DESCRIPTOR_KAZE</h4>
<pre>public static final&nbsp;int DESCRIPTOR_KAZE</pre>
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<dd><a href="../../../constant-values.html#org.opencv.features2d.AKAZE.DESCRIPTOR_KAZE">Constant Field Values</a></dd>
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<h4>DESCRIPTOR_KAZE_UPRIGHT</h4>
<pre>public static final&nbsp;int DESCRIPTOR_KAZE_UPRIGHT</pre>
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<dd><a href="../../../constant-values.html#org.opencv.features2d.AKAZE.DESCRIPTOR_KAZE_UPRIGHT">Constant Field Values</a></dd>
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<pre>public static final&nbsp;int DESCRIPTOR_MLDB</pre>
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<dd><a href="../../../constant-values.html#org.opencv.features2d.AKAZE.DESCRIPTOR_MLDB">Constant Field Values</a></dd>
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<pre>public static final&nbsp;int DESCRIPTOR_MLDB_UPRIGHT</pre>
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<dd><a href="../../../constant-values.html#org.opencv.features2d.AKAZE.DESCRIPTOR_MLDB_UPRIGHT">Constant Field Values</a></dd>
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<pre>public static&nbsp;<a href="../../../org/opencv/features2d/AKAZE.html" title="class in org.opencv.features2d">AKAZE</a>&nbsp;__fromPtr__(long&nbsp;addr)</pre>
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<pre>public static&nbsp;<a href="../../../org/opencv/features2d/AKAZE.html" title="class in org.opencv.features2d">AKAZE</a>&nbsp;create()</pre>
<div class="block">The AKAZE constructor
DESCRIPTOR_KAZE_UPRIGHT, DESCRIPTOR_MLDB or DESCRIPTOR_MLDB_UPRIGHT.
DIFF_CHARBONNIER</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>automatically generated</dd>
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<pre>public static&nbsp;<a href="../../../org/opencv/features2d/AKAZE.html" title="class in org.opencv.features2d">AKAZE</a>&nbsp;create(int&nbsp;descriptor_type)</pre>
<div class="block">The AKAZE constructor</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>descriptor_type</code> - Type of the extracted descriptor: DESCRIPTOR_KAZE,
DESCRIPTOR_KAZE_UPRIGHT, DESCRIPTOR_MLDB or DESCRIPTOR_MLDB_UPRIGHT.
DIFF_CHARBONNIER</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>automatically generated</dd>
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<pre>public static&nbsp;<a href="../../../org/opencv/features2d/AKAZE.html" title="class in org.opencv.features2d">AKAZE</a>&nbsp;create(int&nbsp;descriptor_type,
int&nbsp;descriptor_size)</pre>
<div class="block">The AKAZE constructor</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>descriptor_type</code> - Type of the extracted descriptor: DESCRIPTOR_KAZE,
DESCRIPTOR_KAZE_UPRIGHT, DESCRIPTOR_MLDB or DESCRIPTOR_MLDB_UPRIGHT.</dd>
<dd><code>descriptor_size</code> - Size of the descriptor in bits. 0 -&gt; Full size
DIFF_CHARBONNIER</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>automatically generated</dd>
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<pre>public static&nbsp;<a href="../../../org/opencv/features2d/AKAZE.html" title="class in org.opencv.features2d">AKAZE</a>&nbsp;create(int&nbsp;descriptor_type,
int&nbsp;descriptor_size,
int&nbsp;descriptor_channels)</pre>
<div class="block">The AKAZE constructor</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>descriptor_type</code> - Type of the extracted descriptor: DESCRIPTOR_KAZE,
DESCRIPTOR_KAZE_UPRIGHT, DESCRIPTOR_MLDB or DESCRIPTOR_MLDB_UPRIGHT.</dd>
<dd><code>descriptor_size</code> - Size of the descriptor in bits. 0 -&gt; Full size</dd>
<dd><code>descriptor_channels</code> - Number of channels in the descriptor (1, 2, 3)
DIFF_CHARBONNIER</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>automatically generated</dd>
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<pre>public static&nbsp;<a href="../../../org/opencv/features2d/AKAZE.html" title="class in org.opencv.features2d">AKAZE</a>&nbsp;create(int&nbsp;descriptor_type,
int&nbsp;descriptor_size,
int&nbsp;descriptor_channels,
float&nbsp;threshold)</pre>
<div class="block">The AKAZE constructor</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>descriptor_type</code> - Type of the extracted descriptor: DESCRIPTOR_KAZE,
DESCRIPTOR_KAZE_UPRIGHT, DESCRIPTOR_MLDB or DESCRIPTOR_MLDB_UPRIGHT.</dd>
<dd><code>descriptor_size</code> - Size of the descriptor in bits. 0 -&gt; Full size</dd>
<dd><code>descriptor_channels</code> - Number of channels in the descriptor (1, 2, 3)</dd>
<dd><code>threshold</code> - Detector response threshold to accept point
DIFF_CHARBONNIER</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>automatically generated</dd>
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<pre>public static&nbsp;<a href="../../../org/opencv/features2d/AKAZE.html" title="class in org.opencv.features2d">AKAZE</a>&nbsp;create(int&nbsp;descriptor_type,
int&nbsp;descriptor_size,
int&nbsp;descriptor_channels,
float&nbsp;threshold,
int&nbsp;nOctaves)</pre>
<div class="block">The AKAZE constructor</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>descriptor_type</code> - Type of the extracted descriptor: DESCRIPTOR_KAZE,
DESCRIPTOR_KAZE_UPRIGHT, DESCRIPTOR_MLDB or DESCRIPTOR_MLDB_UPRIGHT.</dd>
<dd><code>descriptor_size</code> - Size of the descriptor in bits. 0 -&gt; Full size</dd>
<dd><code>descriptor_channels</code> - Number of channels in the descriptor (1, 2, 3)</dd>
<dd><code>threshold</code> - Detector response threshold to accept point</dd>
<dd><code>nOctaves</code> - Maximum octave evolution of the image
DIFF_CHARBONNIER</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>automatically generated</dd>
</dl>
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<pre>public static&nbsp;<a href="../../../org/opencv/features2d/AKAZE.html" title="class in org.opencv.features2d">AKAZE</a>&nbsp;create(int&nbsp;descriptor_type,
int&nbsp;descriptor_size,
int&nbsp;descriptor_channels,
float&nbsp;threshold,
int&nbsp;nOctaves,
int&nbsp;nOctaveLayers)</pre>
<div class="block">The AKAZE constructor</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>descriptor_type</code> - Type of the extracted descriptor: DESCRIPTOR_KAZE,
DESCRIPTOR_KAZE_UPRIGHT, DESCRIPTOR_MLDB or DESCRIPTOR_MLDB_UPRIGHT.</dd>
<dd><code>descriptor_size</code> - Size of the descriptor in bits. 0 -&gt; Full size</dd>
<dd><code>descriptor_channels</code> - Number of channels in the descriptor (1, 2, 3)</dd>
<dd><code>threshold</code> - Detector response threshold to accept point</dd>
<dd><code>nOctaves</code> - Maximum octave evolution of the image</dd>
<dd><code>nOctaveLayers</code> - Default number of sublevels per scale level
DIFF_CHARBONNIER</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>automatically generated</dd>
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<pre>public static&nbsp;<a href="../../../org/opencv/features2d/AKAZE.html" title="class in org.opencv.features2d">AKAZE</a>&nbsp;create(int&nbsp;descriptor_type,
int&nbsp;descriptor_size,
int&nbsp;descriptor_channels,
float&nbsp;threshold,
int&nbsp;nOctaves,
int&nbsp;nOctaveLayers,
int&nbsp;diffusivity)</pre>
<div class="block">The AKAZE constructor</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>descriptor_type</code> - Type of the extracted descriptor: DESCRIPTOR_KAZE,
DESCRIPTOR_KAZE_UPRIGHT, DESCRIPTOR_MLDB or DESCRIPTOR_MLDB_UPRIGHT.</dd>
<dd><code>descriptor_size</code> - Size of the descriptor in bits. 0 -&gt; Full size</dd>
<dd><code>descriptor_channels</code> - Number of channels in the descriptor (1, 2, 3)</dd>
<dd><code>threshold</code> - Detector response threshold to accept point</dd>
<dd><code>nOctaves</code> - Maximum octave evolution of the image</dd>
<dd><code>nOctaveLayers</code> - Default number of sublevels per scale level</dd>
<dd><code>diffusivity</code> - Diffusivity type. DIFF_PM_G1, DIFF_PM_G2, DIFF_WEICKERT or
DIFF_CHARBONNIER</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>automatically generated</dd>
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<pre>public&nbsp;java.lang.String&nbsp;getDefaultName()</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from class:&nbsp;<code><a href="../../../org/opencv/core/Algorithm.html#getDefaultName--">Algorithm</a></code></span></div>
<div class="block">Returns the algorithm string identifier.
This string is used as top level xml/yml node tag when the object is saved to a file or string.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code><a href="../../../org/opencv/features2d/Feature2D.html#getDefaultName--">getDefaultName</a></code>&nbsp;in class&nbsp;<code><a href="../../../org/opencv/features2d/Feature2D.html" title="class in org.opencv.features2d">Feature2D</a></code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>automatically generated</dd>
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<pre>public&nbsp;int&nbsp;getDescriptorChannels()</pre>
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<pre>public&nbsp;int&nbsp;getDescriptorSize()</pre>
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<pre>public&nbsp;int&nbsp;getDescriptorType()</pre>
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<pre>public&nbsp;int&nbsp;getDiffusivity()</pre>
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<pre>public&nbsp;int&nbsp;getNOctaveLayers()</pre>
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<pre>public&nbsp;int&nbsp;getNOctaves()</pre>
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<pre>public&nbsp;double&nbsp;getThreshold()</pre>
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<pre>public&nbsp;void&nbsp;setDescriptorChannels(int&nbsp;dch)</pre>
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<pre>public&nbsp;void&nbsp;setDescriptorSize(int&nbsp;dsize)</pre>
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<pre>public&nbsp;void&nbsp;setDescriptorType(int&nbsp;dtype)</pre>
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<pre>public&nbsp;void&nbsp;setDiffusivity(int&nbsp;diff)</pre>
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<pre>public&nbsp;void&nbsp;setNOctaveLayers(int&nbsp;octaveLayers)</pre>
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<pre>public&nbsp;void&nbsp;setNOctaves(int&nbsp;octaves)</pre>
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<pre>public&nbsp;void&nbsp;setThreshold(double&nbsp;threshold)</pre>
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