395 lines
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HTML
395 lines
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HTML
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<title>FastFeatureDetector (OpenCV 4.12.0 Java documentation)</title>
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<div class="sub-title"><span class="package-label-in-type">Package</span> <a href="package-summary.html">org.opencv.features2d</a></div>
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<h1 title="Class FastFeatureDetector" class="title">Class FastFeatureDetector</h1>
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</div>
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<div class="inheritance" title="Inheritance Tree"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">java.lang.Object</a>
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<div class="inheritance"><a href="../core/Algorithm.html" title="class in org.opencv.core">org.opencv.core.Algorithm</a>
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<div class="inheritance"><a href="Feature2D.html" title="class in org.opencv.features2d">org.opencv.features2d.Feature2D</a>
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<div class="inheritance">org.opencv.features2d.FastFeatureDetector</div>
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</div>
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</div>
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</div>
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<section class="class-description" id="class-description">
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<hr>
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<div class="type-signature"><span class="modifiers">public class </span><span class="element-name type-name-label">FastFeatureDetector</span>
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<span class="extends-implements">extends <a href="Feature2D.html" title="class in org.opencv.features2d">Feature2D</a></span></div>
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<div class="block">Wrapping class for feature detection using the FAST method. :</div>
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</section>
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<section class="summary">
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<ul class="summary-list">
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<!-- =========== FIELD SUMMARY =========== -->
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<li>
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<section class="field-summary" id="field-summary">
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<h2>Field Summary</h2>
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<div class="caption"><span>Fields</span></div>
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<div class="summary-table three-column-summary">
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<div class="table-header col-first">Modifier and Type</div>
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<div class="table-header col-second">Field</div>
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<div class="table-header col-last">Description</div>
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<div class="col-first even-row-color"><code>static final int</code></div>
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<div class="col-second even-row-color"><code><a href="#FAST_N" class="member-name-link">FAST_N</a></code></div>
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<div class="col-last even-row-color"> </div>
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<div class="col-first odd-row-color"><code>static final int</code></div>
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<div class="col-second odd-row-color"><code><a href="#NONMAX_SUPPRESSION" class="member-name-link">NONMAX_SUPPRESSION</a></code></div>
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<div class="col-last odd-row-color"> </div>
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<div class="col-first even-row-color"><code>static final int</code></div>
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<div class="col-second even-row-color"><code><a href="#THRESHOLD" class="member-name-link">THRESHOLD</a></code></div>
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<div class="col-last even-row-color"> </div>
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<div class="col-first odd-row-color"><code>static final int</code></div>
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<div class="col-second odd-row-color"><code><a href="#TYPE_5_8" class="member-name-link">TYPE_5_8</a></code></div>
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<div class="col-last odd-row-color"> </div>
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<div class="col-first even-row-color"><code>static final int</code></div>
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<div class="col-second even-row-color"><code><a href="#TYPE_7_12" class="member-name-link">TYPE_7_12</a></code></div>
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<div class="col-last even-row-color"> </div>
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<div class="col-first odd-row-color"><code>static final int</code></div>
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<div class="col-second odd-row-color"><code><a href="#TYPE_9_16" class="member-name-link">TYPE_9_16</a></code></div>
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<div class="col-last odd-row-color"> </div>
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</div>
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</section>
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</li>
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<!-- ========== METHOD SUMMARY =========== -->
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<li>
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<section class="method-summary" id="method-summary">
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<h2>Method Summary</h2>
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<div id="method-summary-table">
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<div class="table-tabs" role="tablist" aria-orientation="horizontal"><button id="method-summary-table-tab0" role="tab" aria-selected="true" aria-controls="method-summary-table.tabpanel" tabindex="0" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table', 3)" class="active-table-tab">All Methods</button><button id="method-summary-table-tab1" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab1', 3)" class="table-tab">Static Methods</button><button id="method-summary-table-tab2" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab2', 3)" class="table-tab">Instance Methods</button><button id="method-summary-table-tab4" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab4', 3)" class="table-tab">Concrete Methods</button></div>
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<div id="method-summary-table.tabpanel" role="tabpanel" aria-labelledby="method-summary-table-tab0">
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<div class="summary-table three-column-summary">
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<div class="table-header col-first">Modifier and Type</div>
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<div class="table-header col-second">Method</div>
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<div class="table-header col-last">Description</div>
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<div class="col-first even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static <a href="FastFeatureDetector.html" title="class in org.opencv.features2d">FastFeatureDetector</a></code></div>
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<div class="col-second even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#__fromPtr__(long)" class="member-name-link">__fromPtr__</a><wbr>(long addr)</code></div>
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<div class="col-last even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"> </div>
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<div class="col-first odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static <a href="FastFeatureDetector.html" title="class in org.opencv.features2d">FastFeatureDetector</a></code></div>
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<div class="col-second odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#create()" class="member-name-link">create</a>()</code></div>
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<div class="col-last odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"> </div>
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<div class="col-first even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static <a href="FastFeatureDetector.html" title="class in org.opencv.features2d">FastFeatureDetector</a></code></div>
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<div class="col-second even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#create(int)" class="member-name-link">create</a><wbr>(int threshold)</code></div>
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<div class="col-last even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"> </div>
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<div class="col-first odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static <a href="FastFeatureDetector.html" title="class in org.opencv.features2d">FastFeatureDetector</a></code></div>
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<div class="col-second odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#create(int,boolean)" class="member-name-link">create</a><wbr>(int threshold,
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boolean nonmaxSuppression)</code></div>
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<div class="col-last odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"> </div>
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<div class="col-first even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static <a href="FastFeatureDetector.html" title="class in org.opencv.features2d">FastFeatureDetector</a></code></div>
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<div class="col-second even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#create(int,boolean,int)" class="member-name-link">create</a><wbr>(int threshold,
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boolean nonmaxSuppression,
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int type)</code></div>
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<div class="col-last even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"> </div>
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<div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></code></div>
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<div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#getDefaultName()" class="member-name-link">getDefaultName</a>()</code></div>
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<div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
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<div class="block">Returns the algorithm string identifier.</div>
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</div>
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<div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>boolean</code></div>
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<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#getNonmaxSuppression()" class="member-name-link">getNonmaxSuppression</a>()</code></div>
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<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"> </div>
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<div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>int</code></div>
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<div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#getThreshold()" class="member-name-link">getThreshold</a>()</code></div>
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<div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"> </div>
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<div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>int</code></div>
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<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#getType()" class="member-name-link">getType</a>()</code></div>
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<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"> </div>
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<div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>void</code></div>
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<div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#setNonmaxSuppression(boolean)" class="member-name-link">setNonmaxSuppression</a><wbr>(boolean f)</code></div>
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<div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"> </div>
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<div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>void</code></div>
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<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#setThreshold(int)" class="member-name-link">setThreshold</a><wbr>(int threshold)</code></div>
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<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"> </div>
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<div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>void</code></div>
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<div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#setType(int)" class="member-name-link">setType</a><wbr>(int type)</code></div>
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<div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"> </div>
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</div>
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</div>
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</div>
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<div class="inherited-list">
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<h3 id="methods-inherited-from-class-org.opencv.features2d.Feature2D">Methods inherited from class org.opencv.features2d.<a href="Feature2D.html" title="class in org.opencv.features2d">Feature2D</a></h3>
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<code><a href="Feature2D.html#compute(java.util.List,java.util.List,java.util.List)">compute</a>, <a href="Feature2D.html#compute(org.opencv.core.Mat,org.opencv.core.MatOfKeyPoint,org.opencv.core.Mat)">compute</a>, <a href="Feature2D.html#defaultNorm()">defaultNorm</a>, <a href="Feature2D.html#descriptorSize()">descriptorSize</a>, <a href="Feature2D.html#descriptorType()">descriptorType</a>, <a href="Feature2D.html#detect(java.util.List,java.util.List)">detect</a>, <a href="Feature2D.html#detect(java.util.List,java.util.List,java.util.List)">detect</a>, <a href="Feature2D.html#detect(org.opencv.core.Mat,org.opencv.core.MatOfKeyPoint)">detect</a>, <a href="Feature2D.html#detect(org.opencv.core.Mat,org.opencv.core.MatOfKeyPoint,org.opencv.core.Mat)">detect</a>, <a href="Feature2D.html#detectAndCompute(org.opencv.core.Mat,org.opencv.core.Mat,org.opencv.core.MatOfKeyPoint,org.opencv.core.Mat)">detectAndCompute</a>, <a href="Feature2D.html#detectAndCompute(org.opencv.core.Mat,org.opencv.core.Mat,org.opencv.core.MatOfKeyPoint,org.opencv.core.Mat,boolean)">detectAndCompute</a>, <a href="Feature2D.html#empty()">empty</a>, <a href="Feature2D.html#read(java.lang.String)">read</a>, <a href="Feature2D.html#write(java.lang.String)">write</a></code></div>
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<div class="inherited-list">
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<h3 id="methods-inherited-from-class-org.opencv.core.Algorithm">Methods inherited from class org.opencv.core.<a href="../core/Algorithm.html" title="class in org.opencv.core">Algorithm</a></h3>
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<code><a href="../core/Algorithm.html#clear()">clear</a>, <a href="../core/Algorithm.html#getNativeObjAddr()">getNativeObjAddr</a>, <a href="../core/Algorithm.html#save(java.lang.String)">save</a></code></div>
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<div class="inherited-list">
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<h3 id="methods-inherited-from-class-java.lang.Object">Methods inherited from class java.lang.<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a></h3>
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<code><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#equals(java.lang.Object)" title="class or interface in java.lang" class="external-link">equals</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#getClass()" title="class or interface in java.lang" class="external-link">getClass</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#hashCode()" title="class or interface in java.lang" class="external-link">hashCode</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#notify()" title="class or interface in java.lang" class="external-link">notify</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#notifyAll()" title="class or interface in java.lang" class="external-link">notifyAll</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#toString()" title="class or interface in java.lang" class="external-link">toString</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#wait()" title="class or interface in java.lang" class="external-link">wait</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#wait(long)" title="class or interface in java.lang" class="external-link">wait</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#wait(long,int)" title="class or interface in java.lang" class="external-link">wait</a></code></div>
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</section>
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</li>
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</ul>
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</section>
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<section class="details">
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<ul class="details-list">
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<!-- ============ FIELD DETAIL =========== -->
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<li>
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<section class="field-details" id="field-detail">
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<h2>Field Details</h2>
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<ul class="member-list">
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<li>
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<section class="detail" id="THRESHOLD">
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<h3>THRESHOLD</h3>
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<div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type">int</span> <span class="element-name">THRESHOLD</span></div>
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<dl class="notes">
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<dt>See Also:</dt>
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<dd>
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<ul class="see-list">
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<li><a href="../../../constant-values.html#org.opencv.features2d.FastFeatureDetector.THRESHOLD">Constant Field Values</a></li>
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</ul>
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</dd>
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</dl>
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</section>
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</li>
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<li>
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<section class="detail" id="NONMAX_SUPPRESSION">
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<h3>NONMAX_SUPPRESSION</h3>
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<div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type">int</span> <span class="element-name">NONMAX_SUPPRESSION</span></div>
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<dl class="notes">
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<dt>See Also:</dt>
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<dd>
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<ul class="see-list">
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<li><a href="../../../constant-values.html#org.opencv.features2d.FastFeatureDetector.NONMAX_SUPPRESSION">Constant Field Values</a></li>
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</ul>
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</dd>
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</dl>
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</section>
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</li>
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<li>
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<section class="detail" id="FAST_N">
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<h3>FAST_N</h3>
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<div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type">int</span> <span class="element-name">FAST_N</span></div>
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<dl class="notes">
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<dt>See Also:</dt>
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<dd>
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<ul class="see-list">
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<li><a href="../../../constant-values.html#org.opencv.features2d.FastFeatureDetector.FAST_N">Constant Field Values</a></li>
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</ul>
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</dd>
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</dl>
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</section>
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</li>
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<li>
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<section class="detail" id="TYPE_5_8">
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<h3>TYPE_5_8</h3>
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<div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type">int</span> <span class="element-name">TYPE_5_8</span></div>
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<dl class="notes">
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<dt>See Also:</dt>
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<dd>
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<ul class="see-list">
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<li><a href="../../../constant-values.html#org.opencv.features2d.FastFeatureDetector.TYPE_5_8">Constant Field Values</a></li>
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</ul>
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</dd>
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</dl>
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</section>
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<li>
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<section class="detail" id="TYPE_7_12">
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<h3>TYPE_7_12</h3>
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<div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type">int</span> <span class="element-name">TYPE_7_12</span></div>
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<dl class="notes">
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<dt>See Also:</dt>
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<dd>
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<ul class="see-list">
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<li><a href="../../../constant-values.html#org.opencv.features2d.FastFeatureDetector.TYPE_7_12">Constant Field Values</a></li>
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</ul>
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</dd>
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</dl>
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</section>
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</li>
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<li>
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<section class="detail" id="TYPE_9_16">
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<h3>TYPE_9_16</h3>
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<div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type">int</span> <span class="element-name">TYPE_9_16</span></div>
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<dl class="notes">
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<dt>See Also:</dt>
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<dd>
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<ul class="see-list">
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<li><a href="../../../constant-values.html#org.opencv.features2d.FastFeatureDetector.TYPE_9_16">Constant Field Values</a></li>
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</ul>
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</dd>
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</dl>
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</section>
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</li>
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</ul>
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</section>
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</li>
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<!-- ============ METHOD DETAIL ========== -->
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<li>
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<section class="method-details" id="method-detail">
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<h2>Method Details</h2>
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<ul class="member-list">
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<li>
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<section class="detail" id="__fromPtr__(long)">
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<h3>__fromPtr__</h3>
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<div class="member-signature"><span class="modifiers">public static</span> <span class="return-type"><a href="FastFeatureDetector.html" title="class in org.opencv.features2d">FastFeatureDetector</a></span> <span class="element-name">__fromPtr__</span><wbr><span class="parameters">(long addr)</span></div>
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</section>
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</li>
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<li>
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<section class="detail" id="create(int,boolean,int)">
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<h3>create</h3>
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<div class="member-signature"><span class="modifiers">public static</span> <span class="return-type"><a href="FastFeatureDetector.html" title="class in org.opencv.features2d">FastFeatureDetector</a></span> <span class="element-name">create</span><wbr><span class="parameters">(int threshold,
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boolean nonmaxSuppression,
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int type)</span></div>
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</section>
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</li>
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<li>
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<section class="detail" id="create(int,boolean)">
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<h3>create</h3>
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<div class="member-signature"><span class="modifiers">public static</span> <span class="return-type"><a href="FastFeatureDetector.html" title="class in org.opencv.features2d">FastFeatureDetector</a></span> <span class="element-name">create</span><wbr><span class="parameters">(int threshold,
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boolean nonmaxSuppression)</span></div>
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</section>
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</li>
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<li>
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<section class="detail" id="create(int)">
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<h3>create</h3>
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<div class="member-signature"><span class="modifiers">public static</span> <span class="return-type"><a href="FastFeatureDetector.html" title="class in org.opencv.features2d">FastFeatureDetector</a></span> <span class="element-name">create</span><wbr><span class="parameters">(int threshold)</span></div>
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</section>
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</li>
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<li>
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<section class="detail" id="create()">
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<h3>create</h3>
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<div class="member-signature"><span class="modifiers">public static</span> <span class="return-type"><a href="FastFeatureDetector.html" title="class in org.opencv.features2d">FastFeatureDetector</a></span> <span class="element-name">create</span>()</div>
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</section>
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</li>
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<li>
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<section class="detail" id="setThreshold(int)">
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<h3>setThreshold</h3>
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<div class="member-signature"><span class="modifiers">public</span> <span class="return-type">void</span> <span class="element-name">setThreshold</span><wbr><span class="parameters">(int threshold)</span></div>
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</section>
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</li>
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<li>
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<section class="detail" id="getThreshold()">
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<h3>getThreshold</h3>
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<div class="member-signature"><span class="modifiers">public</span> <span class="return-type">int</span> <span class="element-name">getThreshold</span>()</div>
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</section>
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</li>
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<li>
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<section class="detail" id="setNonmaxSuppression(boolean)">
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<h3>setNonmaxSuppression</h3>
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<div class="member-signature"><span class="modifiers">public</span> <span class="return-type">void</span> <span class="element-name">setNonmaxSuppression</span><wbr><span class="parameters">(boolean f)</span></div>
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</section>
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</li>
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<li>
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<section class="detail" id="getNonmaxSuppression()">
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<h3>getNonmaxSuppression</h3>
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<div class="member-signature"><span class="modifiers">public</span> <span class="return-type">boolean</span> <span class="element-name">getNonmaxSuppression</span>()</div>
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</section>
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</li>
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<li>
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<section class="detail" id="setType(int)">
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<h3>setType</h3>
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<div class="member-signature"><span class="modifiers">public</span> <span class="return-type">void</span> <span class="element-name">setType</span><wbr><span class="parameters">(int type)</span></div>
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</section>
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</li>
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<li>
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<section class="detail" id="getType()">
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<h3>getType</h3>
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<div class="member-signature"><span class="modifiers">public</span> <span class="return-type">int</span> <span class="element-name">getType</span>()</div>
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</section>
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</li>
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<li>
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<section class="detail" id="getDefaultName()">
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<h3>getDefaultName</h3>
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<div class="member-signature"><span class="modifiers">public</span> <span class="return-type"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></span> <span class="element-name">getDefaultName</span>()</div>
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<div class="block"><span class="descfrm-type-label">Description copied from class: <code><a href="../core/Algorithm.html#getDefaultName()">Algorithm</a></code></span></div>
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<div class="block">Returns the algorithm string identifier.
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This string is used as top level xml/yml node tag when the object is saved to a file or string.</div>
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<dl class="notes">
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<dt>Overrides:</dt>
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<dd><code><a href="Feature2D.html#getDefaultName()">getDefaultName</a></code> in class <code><a href="Feature2D.html" title="class in org.opencv.features2d">Feature2D</a></code></dd>
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<dt>Returns:</dt>
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<dd>automatically generated</dd>
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</dl>
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</section>
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</li>
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</ul>
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</section>
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</li>
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</ul>
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</section>
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<!-- ========= END OF CLASS DATA ========= -->
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<p class="legal-copy"><small>Generated on 2025-07-02 13:16:04 / OpenCV 4.12.0</small></p>
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