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<div class="subTitle">com.google.zxing.oned</div>
<h2 title="Class OneDReader" class="title">Class OneDReader</h2>
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<div class="contentContainer">
<ul class="inheritance">
<li><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">java.lang.Object</a></li>
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<dt>All Implemented Interfaces:</dt>
<dd><a href="../../../../com/google/zxing/Reader.html" title="interface in com.google.zxing">Reader</a></dd>
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<dl>
<dt>Direct Known Subclasses:</dt>
<dd><a href="../../../../com/google/zxing/oned/rss/AbstractRSSReader.html" title="class in com.google.zxing.oned.rss">AbstractRSSReader</a>, <a href="../../../../com/google/zxing/oned/CodaBarReader.html" title="class in com.google.zxing.oned">CodaBarReader</a>, <a href="../../../../com/google/zxing/oned/Code128Reader.html" title="class in com.google.zxing.oned">Code128Reader</a>, <a href="../../../../com/google/zxing/oned/Code39Reader.html" title="class in com.google.zxing.oned">Code39Reader</a>, <a href="../../../../com/google/zxing/oned/Code93Reader.html" title="class in com.google.zxing.oned">Code93Reader</a>, <a href="../../../../com/google/zxing/oned/ITFReader.html" title="class in com.google.zxing.oned">ITFReader</a>, <a href="../../../../com/google/zxing/oned/MultiFormatOneDReader.html" title="class in com.google.zxing.oned">MultiFormatOneDReader</a>, <a href="../../../../com/google/zxing/oned/MultiFormatUPCEANReader.html" title="class in com.google.zxing.oned">MultiFormatUPCEANReader</a>, <a href="../../../../com/google/zxing/oned/UPCEANReader.html" title="class in com.google.zxing.oned">UPCEANReader</a></dd>
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<pre>public abstract class <span class="typeNameLabel">OneDReader</span>
extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>
implements <a href="../../../../com/google/zxing/Reader.html" title="interface in com.google.zxing">Reader</a></pre>
<div class="block">Encapsulates functionality and implementation that is common to all families
of one-dimensional barcodes.</div>
<dl>
<dt><span class="simpleTagLabel">Author:</span></dt>
<dd>dswitkin@google.com (Daniel Switkin), Sean Owen</dd>
</dl>
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<th class="colOne" scope="col">Constructor and Description</th>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../../com/google/zxing/oned/OneDReader.html#OneDReader--">OneDReader</a></span>()</code> </td>
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<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Method and Description</th>
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<tr id="i0" class="altColor">
<td class="colFirst"><code><a href="../../../../com/google/zxing/Result.html" title="class in com.google.zxing">Result</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/google/zxing/oned/OneDReader.html#decode-com.google.zxing.BinaryBitmap-">decode</a></span>(<a href="../../../../com/google/zxing/BinaryBitmap.html" title="class in com.google.zxing">BinaryBitmap</a> image)</code>
<div class="block">Locates and decodes a barcode in some format within an image.</div>
</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code><a href="../../../../com/google/zxing/Result.html" title="class in com.google.zxing">Result</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/google/zxing/oned/OneDReader.html#decode-com.google.zxing.BinaryBitmap-java.util.Map-">decode</a></span>(<a href="../../../../com/google/zxing/BinaryBitmap.html" title="class in com.google.zxing">BinaryBitmap</a> image,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a><<a href="../../../../com/google/zxing/DecodeHintType.html" title="enum in com.google.zxing">DecodeHintType</a>,?> hints)</code>
<div class="block">Locates and decodes a barcode in some format within an image.</div>
</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code>abstract <a href="../../../../com/google/zxing/Result.html" title="class in com.google.zxing">Result</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/google/zxing/oned/OneDReader.html#decodeRow-int-com.google.zxing.common.BitArray-java.util.Map-">decodeRow</a></span>(int rowNumber,
<a href="../../../../com/google/zxing/common/BitArray.html" title="class in com.google.zxing.common">BitArray</a> row,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a><<a href="../../../../com/google/zxing/DecodeHintType.html" title="enum in com.google.zxing">DecodeHintType</a>,?> hints)</code>
<div class="block">Attempts to decode a one-dimensional barcode format given a single row of
an image.</div>
</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code>protected static float</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/google/zxing/oned/OneDReader.html#patternMatchVariance-int:A-int:A-float-">patternMatchVariance</a></span>(int[] counters,
int[] pattern,
float maxIndividualVariance)</code>
<div class="block">Determines how closely a set of observed counts of runs of black/white values matches a given
target pattern.</div>
</td>
</tr>
<tr id="i4" class="altColor">
<td class="colFirst"><code>protected static void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/google/zxing/oned/OneDReader.html#recordPattern-com.google.zxing.common.BitArray-int-int:A-">recordPattern</a></span>(<a href="../../../../com/google/zxing/common/BitArray.html" title="class in com.google.zxing.common">BitArray</a> row,
int start,
int[] counters)</code>
<div class="block">Records the size of successive runs of white and black pixels in a row, starting at a given point.</div>
</td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code>protected static void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/google/zxing/oned/OneDReader.html#recordPatternInReverse-com.google.zxing.common.BitArray-int-int:A-">recordPatternInReverse</a></span>(<a href="../../../../com/google/zxing/common/BitArray.html" title="class in com.google.zxing.common">BitArray</a> row,
int start,
int[] counters)</code> </td>
</tr>
<tr id="i6" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/google/zxing/oned/OneDReader.html#reset--">reset</a></span>()</code>
<div class="block">Resets any internal state the implementation has after a decode, to prepare it
for reuse.</div>
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<h3>Methods inherited from class java.lang.<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></h3>
<code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#clone--" title="class or interface in java.lang">clone</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#equals-java.lang.Object-" title="class or interface in java.lang">equals</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#finalize--" title="class or interface in java.lang">finalize</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#getClass--" title="class or interface in java.lang">getClass</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#hashCode--" title="class or interface in java.lang">hashCode</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notify--" title="class or interface in java.lang">notify</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notifyAll--" title="class or interface in java.lang">notifyAll</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#toString--" title="class or interface in java.lang">toString</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait--" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-int-" title="class or interface in java.lang">wait</a></code></li>
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<h4>OneDReader</h4>
<pre>public OneDReader()</pre>
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<h4>decode</h4>
<pre>public <a href="../../../../com/google/zxing/Result.html" title="class in com.google.zxing">Result</a> decode(<a href="../../../../com/google/zxing/BinaryBitmap.html" title="class in com.google.zxing">BinaryBitmap</a> image)
throws <a href="../../../../com/google/zxing/NotFoundException.html" title="class in com.google.zxing">NotFoundException</a>,
<a href="../../../../com/google/zxing/FormatException.html" title="class in com.google.zxing">FormatException</a></pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../com/google/zxing/Reader.html#decode-com.google.zxing.BinaryBitmap-">Reader</a></code></span></div>
<div class="block">Locates and decodes a barcode in some format within an image.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../com/google/zxing/Reader.html#decode-com.google.zxing.BinaryBitmap-">decode</a></code> in interface <code><a href="../../../../com/google/zxing/Reader.html" title="interface in com.google.zxing">Reader</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>image</code> - image of barcode to decode</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>String which the barcode encodes</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../../com/google/zxing/NotFoundException.html" title="class in com.google.zxing">NotFoundException</a></code> - if no potential barcode is found</dd>
<dd><code><a href="../../../../com/google/zxing/FormatException.html" title="class in com.google.zxing">FormatException</a></code> - if a potential barcode is found but format is invalid</dd>
</dl>
</li>
</ul>
<a name="decode-com.google.zxing.BinaryBitmap-java.util.Map-">
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<h4>decode</h4>
<pre>public <a href="../../../../com/google/zxing/Result.html" title="class in com.google.zxing">Result</a> decode(<a href="../../../../com/google/zxing/BinaryBitmap.html" title="class in com.google.zxing">BinaryBitmap</a> image,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a><<a href="../../../../com/google/zxing/DecodeHintType.html" title="enum in com.google.zxing">DecodeHintType</a>,?> hints)
throws <a href="../../../../com/google/zxing/NotFoundException.html" title="class in com.google.zxing">NotFoundException</a>,
<a href="../../../../com/google/zxing/FormatException.html" title="class in com.google.zxing">FormatException</a></pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../com/google/zxing/Reader.html#decode-com.google.zxing.BinaryBitmap-java.util.Map-">Reader</a></code></span></div>
<div class="block">Locates and decodes a barcode in some format within an image. This method also accepts
hints, each possibly associated to some data, which may help the implementation decode.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../com/google/zxing/Reader.html#decode-com.google.zxing.BinaryBitmap-java.util.Map-">decode</a></code> in interface <code><a href="../../../../com/google/zxing/Reader.html" title="interface in com.google.zxing">Reader</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>image</code> - image of barcode to decode</dd>
<dd><code>hints</code> - passed as a <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util"><code>Map</code></a> from <a href="../../../../com/google/zxing/DecodeHintType.html" title="enum in com.google.zxing"><code>DecodeHintType</code></a>
to arbitrary data. The
meaning of the data depends upon the hint type. The implementation may or may not do
anything with these hints.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>String which the barcode encodes</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../../com/google/zxing/NotFoundException.html" title="class in com.google.zxing">NotFoundException</a></code> - if no potential barcode is found</dd>
<dd><code><a href="../../../../com/google/zxing/FormatException.html" title="class in com.google.zxing">FormatException</a></code> - if a potential barcode is found but format is invalid</dd>
</dl>
</li>
</ul>
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<h4>reset</h4>
<pre>public void reset()</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../com/google/zxing/Reader.html#reset--">Reader</a></code></span></div>
<div class="block">Resets any internal state the implementation has after a decode, to prepare it
for reuse.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../com/google/zxing/Reader.html#reset--">reset</a></code> in interface <code><a href="../../../../com/google/zxing/Reader.html" title="interface in com.google.zxing">Reader</a></code></dd>
</dl>
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<a name="recordPattern-com.google.zxing.common.BitArray-int-int:A-">
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<h4>recordPattern</h4>
<pre>protected static void recordPattern(<a href="../../../../com/google/zxing/common/BitArray.html" title="class in com.google.zxing.common">BitArray</a> row,
int start,
int[] counters)
throws <a href="../../../../com/google/zxing/NotFoundException.html" title="class in com.google.zxing">NotFoundException</a></pre>
<div class="block">Records the size of successive runs of white and black pixels in a row, starting at a given point.
The values are recorded in the given array, and the number of runs recorded is equal to the size
of the array. If the row starts on a white pixel at the given start point, then the first count
recorded is the run of white pixels starting from that point; likewise it is the count of a run
of black pixels if the row begin on a black pixels at that point.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>row</code> - row to count from</dd>
<dd><code>start</code> - offset into row to start at</dd>
<dd><code>counters</code> - array into which to record counts</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../../com/google/zxing/NotFoundException.html" title="class in com.google.zxing">NotFoundException</a></code> - if counters cannot be filled entirely from row before running out
of pixels</dd>
</dl>
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<h4>recordPatternInReverse</h4>
<pre>protected static void recordPatternInReverse(<a href="../../../../com/google/zxing/common/BitArray.html" title="class in com.google.zxing.common">BitArray</a> row,
int start,
int[] counters)
throws <a href="../../../../com/google/zxing/NotFoundException.html" title="class in com.google.zxing">NotFoundException</a></pre>
<dl>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../../com/google/zxing/NotFoundException.html" title="class in com.google.zxing">NotFoundException</a></code></dd>
</dl>
</li>
</ul>
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<h4>patternMatchVariance</h4>
<pre>protected static float patternMatchVariance(int[] counters,
int[] pattern,
float maxIndividualVariance)</pre>
<div class="block">Determines how closely a set of observed counts of runs of black/white values matches a given
target pattern. This is reported as the ratio of the total variance from the expected pattern
proportions across all pattern elements, to the length of the pattern.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>counters</code> - observed counters</dd>
<dd><code>pattern</code> - expected pattern</dd>
<dd><code>maxIndividualVariance</code> - The most any counter can differ before we give up</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>ratio of total variance between counters and pattern compared to total pattern size</dd>
</dl>
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<h4>decodeRow</h4>
<pre>public abstract <a href="../../../../com/google/zxing/Result.html" title="class in com.google.zxing">Result</a> decodeRow(int rowNumber,
<a href="../../../../com/google/zxing/common/BitArray.html" title="class in com.google.zxing.common">BitArray</a> row,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a><<a href="../../../../com/google/zxing/DecodeHintType.html" title="enum in com.google.zxing">DecodeHintType</a>,?> hints)
throws <a href="../../../../com/google/zxing/NotFoundException.html" title="class in com.google.zxing">NotFoundException</a>,
<a href="../../../../com/google/zxing/ChecksumException.html" title="class in com.google.zxing">ChecksumException</a>,
<a href="../../../../com/google/zxing/FormatException.html" title="class in com.google.zxing">FormatException</a></pre>
<div class="block"><p>Attempts to decode a one-dimensional barcode format given a single row of
an image.</p></div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>rowNumber</code> - row number from top of the row</dd>
<dd><code>row</code> - the black/white pixel data of the row</dd>
<dd><code>hints</code> - decode hints</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd><a href="../../../../com/google/zxing/Result.html" title="class in com.google.zxing"><code>Result</code></a> containing encoded string and start/end of barcode</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../../com/google/zxing/NotFoundException.html" title="class in com.google.zxing">NotFoundException</a></code> - if no potential barcode is found</dd>
<dd><code><a href="../../../../com/google/zxing/ChecksumException.html" title="class in com.google.zxing">ChecksumException</a></code> - if a potential barcode is found but does not pass its checksum</dd>
<dd><code><a href="../../../../com/google/zxing/FormatException.html" title="class in com.google.zxing">FormatException</a></code> - if a potential barcode is found but format is invalid</dd>
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