mrkad
/
php-qrcode
mirror of https://github.com/chillerlan/php-qrcode.git


			
							12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879808182838485868788899091929394959697989910010110210310410510610710810911011111211311411511611711811912012112212312412512612712812913013113213313413513613713813914014114214314414514614714814915015115215315415515615715815916016116216316416516616716816917017117217317417517617717817918018118218318418518618718818919019119219319419519619719819920020120220320420520620720820921021121221321421521621721821922022122222322422522622722822923023123223323423523623723823924024124224324424524624724824925025125225325425525625725825926026126226326426526626726826927027127227327427527627727827928028128228328428528628728828929029129229329429529629729829930030130230330430530630730830931031131231331431531631731831932032132232332432532632732832933033133233333433533633733833934034134234334434534634734834935035135235335435535635735835936036136236336436536636736836937037137237337437537637737837938038138238338438538638738838939039139239339439539639739839940040140240340440540640740840941041141241341441541641741841942042142242342442542642742842943043143243343443543643743843944044144244344444544644744844945045145245345445545645745845946046146246346446546646746846947047147247347447547647747847948048148248348448548648748848949049149249349449549649749849950050150250350450550650750850951051151251351451551651751851952052152252352452552652752852953053153253353453553653753853954054154254354454554654754854955055155255355455555655755855956056156256356456556656756856957057157257357457557657757857958058158258358458558658758858959059159259359459559659759859960060160260360460560660760860961061161261361461561661761861962062162262362462562662762862963063163263363463563663763863964064164264364464564664764864965065165265365465565665765865966066166266366466566666766866967067167267367467567667767867968068168268368468568668768868969069169269369469569669769869970070170270370470570670770870971071171271371471571671771871972072172272372472572672772872973073173273373473573673773873974074174274374474574674774874975075175275375475575675775875976076176276376476576676776876977077177277377477577677777877978078178278378478578678778878979079179279379479579679779879980080180280380480580680780880981081181281381481581681781881982082182282382482582682782882983083183283383483583683783883984084184284384484584684784884985085185285385485585685785885986086186286386486586686786886987087187287387487587687787887988088188288388488588688788888989089189289389489589689789889990090190290390490590690790890991091191291391491591691791891992092192292392492592692792892993093193293393493593693793893994094194294394494594694794894995095195295395495595695795895996096196296396496596696796896997097197297397497597697797897998098198298398498598698798898999099199299399499599699799899910001001100210031004100510061007100810091010101110121013101410151016101710181019102010211022102310241025102610271028102910301031103210331034103510361037103810391040104110421043104410451046104710481049105010511052105310541055105610571058105910601061106210631064106510661067106810691070107110721073107410751076107710781079108010811082108310841085108610871088108910901091
							<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="utf-8">
            <title>Documentation</title>
    
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <base href="../">
    <link rel="icon" href="images/favicon.ico"/>
    <link rel="stylesheet" href="css/normalize.css">
    <link rel="stylesheet" href="css/base.css">
            <link rel="preconnect" href="https://fonts.gstatic.com">
        <link href="https://fonts.googleapis.com/css2?family=Open+Sans:wght@100;200;300;400;600;700&display=swap" rel="stylesheet">
        <link href="https://fonts.googleapis.com/css2?family=Source+Code+Pro:wght@400;600;700&display=swap" rel="stylesheet">
        <link rel="stylesheet" href="css/template.css">
        <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.12.0/css/all.min.css" integrity="sha256-ybRkN9dBjhcS2qrW1z+hfCxq+1aBdwyQM5wlQoQVt/0=" crossorigin="anonymous" />
        <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/prismjs@1.23.0/themes/prism-okaidia.css">
        <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/prismjs@1.23.0/plugins/line-numbers/prism-line-numbers.css">
        <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/prismjs@1.23.0/plugins/line-highlight/prism-line-highlight.css">
                <script src="https://cdn.jsdelivr.net/npm/fuse.js@3.4.6"></script>
        <script src="https://cdn.jsdelivr.net/npm/css-vars-ponyfill@2"></script>
        <script src="js/template.js"></script>
        <script src="js/search.js"></script>
        <script defer src="js/searchIndex.js"></script>
    </head>
<body id="top">
    <header class="phpdocumentor-header phpdocumentor-section">
    <h1 class="phpdocumentor-title"><a href="" class="phpdocumentor-title__link">Documentation</a></h1>
    <input class="phpdocumentor-header__menu-button" type="checkbox" id="menu-button" name="menu-button" />
    <label class="phpdocumentor-header__menu-icon" for="menu-button">
        <i class="fas fa-bars"></i>
    </label>
    <section data-search-form class="phpdocumentor-search">
    <label>
        <span class="visually-hidden">Search for</span>
        <svg class="phpdocumentor-search__icon" width="21" height="20" viewBox="0 0 21 20" fill="none" xmlns="http://www.w3.org/2000/svg">
            <circle cx="7.5" cy="7.5" r="6.5" stroke="currentColor" stroke-width="2"/>
            <line x1="12.4892" y1="12.2727" x2="19.1559" y2="18.9393" stroke="currentColor" stroke-width="3"/>
        </svg>
        <input type="search" class="phpdocumentor-field phpdocumentor-search__field" placeholder="Loading .." disabled />
    </label>
</section>

    <nav class="phpdocumentor-topnav">
    <ul class="phpdocumentor-topnav__menu">
                        <li class="phpdocumentor-topnav__menu-item -menu">
                <a href="https://php-qrcode.readthedocs.io">
                    <span>
                                                                        User Manual
                    </span>
                </a>
            </li>
                                <li class="phpdocumentor-topnav__menu-item -social">
                <a href="https://github.com/chillerlan/php-qrcode">
                    <span>
                                                                        <i class="fab fa-github"></i>
                                                
                    </span>
                </a>
            </li>
                </ul>
</nav>
</header>

    <main class="phpdocumentor">
        <div class="phpdocumentor-section">
            <input class="phpdocumentor-sidebar__menu-button" type="checkbox" id="sidebar-button" name="sidebar-button" />
<label class="phpdocumentor-sidebar__menu-icon" for="sidebar-button">
    Menu
</label>
<aside class="phpdocumentor-column -three phpdocumentor-sidebar">
                    <section class="phpdocumentor-sidebar__category">
            <h2 class="phpdocumentor-sidebar__category-header">Namespaces</h2>
                                    <h4 class="phpdocumentor-sidebar__root-namespace">
    <a href="namespaces/chillerlan.html" class="">chillerlan</a>
</h4>
    <ul class="phpdocumentor-list">
                    <li>
                <a href="namespaces/chillerlan-qrcode.html" class="">QRCode</a>
                
            </li>
                    <li>
                <a href="namespaces/chillerlan-qrcodetest.html" class="">QRCodeTest</a>
                
            </li>
            </ul>

                        </section>
                <section class="phpdocumentor-sidebar__category">
            <h2 class="phpdocumentor-sidebar__category-header">Packages</h2>
                                    <h4 class="phpdocumentor-sidebar__root-namespace">
    <a href="packages/Application.html" class="">Application</a>
</h4>

                        </section>
            
    <section class="phpdocumentor-sidebar__category">
        <h2 class="phpdocumentor-sidebar__category-header">Reports</h2>
                <h3 class="phpdocumentor-sidebar__root-package"><a href="reports/deprecated.html">Deprecated</a></h3>
        <h3 class="phpdocumentor-sidebar__root-package"><a href="reports/errors.html">Errors</a></h3>
        <h3 class="phpdocumentor-sidebar__root-package"><a href="reports/markers.html">Markers</a></h3>
    </section>

    <section class="phpdocumentor-sidebar__category">
        <h2 class="phpdocumentor-sidebar__category-header">Indices</h2>
        <h3 class="phpdocumentor-sidebar__root-package"><a href="indices/files.html">Files</a></h3>
    </section>
</aside>

            <div class="phpdocumentor-column -nine phpdocumentor-content">
                                <section>
                                        <ul class="phpdocumentor-breadcrumbs">
            <li class="phpdocumentor-breadcrumb"><a href="namespaces/chillerlan.html">chillerlan</a></li>
            <li class="phpdocumentor-breadcrumb"><a href="namespaces/chillerlan-qrcode.html">QRCode</a></li>
            <li class="phpdocumentor-breadcrumb"><a href="namespaces/chillerlan-qrcode-detector.html">Detector</a></li>
    </ul>

    <article class="phpdocumentor-element -class">
        <h2 class="phpdocumentor-content__title">
    Detector

    
            <div class="phpdocumentor-element__package">
            in package
            <ul class="phpdocumentor-breadcrumbs">
                                    <li class="phpdocumentor-breadcrumb"><a href="packages/Application.html">Application</a></li>
                            </ul>
        </div>
    
    
    </h2>

<div class="phpdocumentor-label-line">

    <div class="phpdocumentor-label phpdocumentor-label--success"><span>Final</span><span>Yes</span></div>


</div>

        <aside class="phpdocumentor-element-found-in">
    <abbr class="phpdocumentor-element-found-in__file" title="src/Detector/Detector.php"><a href="files/src-detector-detector.html"><abbr title="src/Detector/Detector.php">Detector.php</abbr></a></abbr>
    :
    <span class="phpdocumentor-element-found-in__line">26</span>

    </aside>

            <p class="phpdocumentor-summary">Encapsulates logic that can detect a QR Code in an image, even if the QR Code
is rotated or skewed, or partially obscured.</p>


    <h5 class="phpdocumentor-tag-list__heading" id="tags">
        Tags
        <a href="classes/chillerlan-QRCode-Detector-Detector.html#tags" class="headerlink"><i class="fas fa-link"></i></a>

    </h5>
    <dl class="phpdocumentor-tag-list">
                                    <dt class="phpdocumentor-tag-list__entry">
                    <span class="phpdocumentor-tag__name">author</span>
                </dt>
                <dd class="phpdocumentor-tag-list__definition">
                                                                                
                                                 <section class="phpdocumentor-description"><p>Sean Owen</p>
</section>

                                    </dd>
                                            </dl>


<h3 id="toc">
    Table of Contents
    <a href="classes/chillerlan-QRCode-Detector-Detector.html#toc" class="headerlink"><i class="fas fa-link"></i></a>

</h3>


<h4 id="toc-properties">
    Properties
    <a href="classes/chillerlan-QRCode-Detector-Detector.html#toc-properties" class="headerlink"><i class="fas fa-link"></i></a>

</h4>
<dl class="phpdocumentor-table-of-contents">
            <dt class="phpdocumentor-table-of-contents__entry -property -private">
    <a href="classes/chillerlan-QRCode-Detector-Detector.html#property_matrix">$matrix</a>
    <span>
                        &nbsp;: <a href="classes/chillerlan-QRCode-Decoder-BitMatrix.html"><abbr title="\chillerlan\QRCode\Decoder\BitMatrix">BitMatrix</abbr></a>            </span>
</dt>

    </dl>

<h4 id="toc-methods">
    Methods
    <a href="classes/chillerlan-QRCode-Detector-Detector.html#toc-methods" class="headerlink"><i class="fas fa-link"></i></a>

</h4>
<dl class="phpdocumentor-table-of-contents">
            <dt class="phpdocumentor-table-of-contents__entry -method -public">
    <a href="classes/chillerlan-QRCode-Detector-Detector.html#method___construct">__construct()</a>
    <span>
                                &nbsp;: mixed    </span>
</dt>
<dd>Detector constructor.</dd>

            <dt class="phpdocumentor-table-of-contents__entry -method -public">
    <a href="classes/chillerlan-QRCode-Detector-Detector.html#method_detect">detect()</a>
    <span>
                                &nbsp;: <a href="classes/chillerlan-QRCode-Decoder-BitMatrix.html"><abbr title="\chillerlan\QRCode\Decoder\BitMatrix">BitMatrix</abbr></a>    </span>
</dt>
<dd>Detects a QR Code in an image.</dd>

            <dt class="phpdocumentor-table-of-contents__entry -method -private">
    <a href="classes/chillerlan-QRCode-Detector-Detector.html#method_calculateModuleSize">calculateModuleSize()</a>
    <span>
                                &nbsp;: float    </span>
</dt>
<dd>Computes an average estimated module size based on estimated derived from the positions
of the three finder patterns.</dd>

            <dt class="phpdocumentor-table-of-contents__entry -method -private">
    <a href="classes/chillerlan-QRCode-Detector-Detector.html#method_calculateModuleSizeOneWay">calculateModuleSizeOneWay()</a>
    <span>
                                &nbsp;: float    </span>
</dt>
<dd>Estimates module size based on two finder patterns -- it uses
#sizeOfBlackWhiteBlackRunBothWays(int, int, int, int) to figure the
width of each, measuring along the axis between their centers.</dd>

            <dt class="phpdocumentor-table-of-contents__entry -method -private">
    <a href="classes/chillerlan-QRCode-Detector-Detector.html#method_computeDimension">computeDimension()</a>
    <span>
                                &nbsp;: int    </span>
</dt>
<dd>Computes the dimension (number of modules on a size) of the QR Code based on the position
of the finder patterns and estimated module size.</dd>

            <dt class="phpdocumentor-table-of-contents__entry -method -private">
    <a href="classes/chillerlan-QRCode-Detector-Detector.html#method_createTransform">createTransform()</a>
    <span>
                                &nbsp;: <a href="classes/chillerlan-QRCode-Detector-PerspectiveTransform.html"><abbr title="\chillerlan\QRCode\Detector\PerspectiveTransform">PerspectiveTransform</abbr></a>    </span>
</dt>

            <dt class="phpdocumentor-table-of-contents__entry -method -private">
    <a href="classes/chillerlan-QRCode-Detector-Detector.html#method_findAlignmentInRegion">findAlignmentInRegion()</a>
    <span>
                                &nbsp;: <a href="classes/chillerlan-QRCode-Detector-AlignmentPattern.html"><abbr title="\chillerlan\QRCode\Detector\AlignmentPattern">AlignmentPattern</abbr></a>|null    </span>
</dt>
<dd>Attempts to locate an alignment pattern in a limited region of the image, which is
guessed to contain it.</dd>

            <dt class="phpdocumentor-table-of-contents__entry -method -private">
    <a href="classes/chillerlan-QRCode-Detector-Detector.html#method_sizeOfBlackWhiteBlackRun">sizeOfBlackWhiteBlackRun()</a>
    <span>
                                &nbsp;: float    </span>
</dt>
<dd>This method traces a line from a po$in the image, in the direction towards another point.</dd>

            <dt class="phpdocumentor-table-of-contents__entry -method -private">
    <a href="classes/chillerlan-QRCode-Detector-Detector.html#method_sizeOfBlackWhiteBlackRunBothWays">sizeOfBlackWhiteBlackRunBothWays()</a>
    <span>
                                &nbsp;: float    </span>
</dt>
<dd>See #sizeOfBlackWhiteBlackRun(int, int, int, int); computes the total width of
a finder pattern by looking for a black-white-black run from the center in the direction
of another po$(another finder pattern center), and in the opposite direction too.</dd>

    </dl>


    <section class="phpdocumentor-properties">
        <h3 class="phpdocumentor-elements__header" id="properties">
            Properties
            <a href="classes/chillerlan-QRCode-Detector-Detector.html#properties" class="headerlink"><i class="fas fa-link"></i></a>

        </h3>
                    <article
        class="
            phpdocumentor-element
            -property
            -private
                                                        "
>
    <h4 class="phpdocumentor-element__name" id="property_matrix">
        $matrix
        <a href="classes/chillerlan-QRCode-Detector-Detector.html#property_matrix" class="headerlink"><i class="fas fa-link"></i></a>

        <span class="phpdocumentor-element__modifiers">
                                </span>
    </h4>
    <aside class="phpdocumentor-element-found-in">
    <abbr class="phpdocumentor-element-found-in__file" title="src/Detector/Detector.php"><a href="files/src-detector-detector.html"><abbr title="src/Detector/Detector.php">Detector.php</abbr></a></abbr>
    :
    <span class="phpdocumentor-element-found-in__line">28</span>

    </aside>

    
    <code class="phpdocumentor-code phpdocumentor-signature ">
    <span class="phpdocumentor-signature__visibility">private</span>
        <span class="phpdocumentor-signature__type"><a href="classes/chillerlan-QRCode-Decoder-BitMatrix.html"><abbr title="\chillerlan\QRCode\Decoder\BitMatrix">BitMatrix</abbr></a></span>
    <span class="phpdocumentor-signature__name">$matrix</span>
    </code>

    
</article>
            </section>

            <section class="phpdocumentor-methods">
        <h3 class="phpdocumentor-elements__header" id="methods">
            Methods
            <a href="classes/chillerlan-QRCode-Detector-Detector.html#methods" class="headerlink"><i class="fas fa-link"></i></a>

        </h3>
                    <article
        class="phpdocumentor-element
            -method
            -public
                                                        "
>
    <h4 class="phpdocumentor-element__name" id="method___construct">
        __construct()
        <a href="classes/chillerlan-QRCode-Detector-Detector.html#method___construct" class="headerlink"><i class="fas fa-link"></i></a>

    </h4>
    <aside class="phpdocumentor-element-found-in">
    <abbr class="phpdocumentor-element-found-in__file" title="src/Detector/Detector.php"><a href="files/src-detector-detector.html"><abbr title="src/Detector/Detector.php">Detector.php</abbr></a></abbr>
    :
    <span class="phpdocumentor-element-found-in__line">33</span>

    </aside>

        <p class="phpdocumentor-summary">Detector constructor.</p>

    <code class="phpdocumentor-code phpdocumentor-signature ">
    <span class="phpdocumentor-signature__visibility">public</span>
                    <span class="phpdocumentor-signature__name">__construct</span><span>(</span><span class="phpdocumentor-signature__argument"><span class="phpdocumentor-signature__argument__return-type"><a href="classes/chillerlan-QRCode-Common-LuminanceSourceInterface.html"><abbr title="\chillerlan\QRCode\Common\LuminanceSourceInterface">LuminanceSourceInterface</abbr></a>&nbsp;</span><span class="phpdocumentor-signature__argument__name">$source</span></span><span>)</span><span> : </span><span class="phpdocumentor-signature__response_type">mixed</span></code>

    <div class="phpdocumentor-label-line">
        </div>
    
        <h5 class="phpdocumentor-argument-list__heading">Parameters</h5>
    <dl class="phpdocumentor-argument-list">
                    <dt class="phpdocumentor-argument-list__entry">
                <span class="phpdocumentor-signature__argument__name">$source</span>
                : <span class="phpdocumentor-signature__argument__return-type"><a href="classes/chillerlan-QRCode-Common-LuminanceSourceInterface.html"><abbr title="\chillerlan\QRCode\Common\LuminanceSourceInterface">LuminanceSourceInterface</abbr></a></span>
                            </dt>
            <dd class="phpdocumentor-argument-list__definition">
                
            </dd>
            </dl>

    
</article>
                    <article
        class="phpdocumentor-element
            -method
            -public
                                                        "
>
    <h4 class="phpdocumentor-element__name" id="method_detect">
        detect()
        <a href="classes/chillerlan-QRCode-Detector-Detector.html#method_detect" class="headerlink"><i class="fas fa-link"></i></a>

    </h4>
    <aside class="phpdocumentor-element-found-in">
    <abbr class="phpdocumentor-element-found-in__file" title="src/Detector/Detector.php"><a href="files/src-detector-detector.html"><abbr title="src/Detector/Detector.php">Detector.php</abbr></a></abbr>
    :
    <span class="phpdocumentor-element-found-in__line">40</span>

    </aside>

        <p class="phpdocumentor-summary">Detects a QR Code in an image.</p>

    <code class="phpdocumentor-code phpdocumentor-signature ">
    <span class="phpdocumentor-signature__visibility">public</span>
                    <span class="phpdocumentor-signature__name">detect</span><span>(</span><span>)</span><span> : </span><span class="phpdocumentor-signature__response_type"><a href="classes/chillerlan-QRCode-Decoder-BitMatrix.html"><abbr title="\chillerlan\QRCode\Decoder\BitMatrix">BitMatrix</abbr></a></span></code>

    <div class="phpdocumentor-label-line">
        </div>
    
    
            <section>
        <h5 class="phpdocumentor-return-value__heading">Return values</h5>
        <span class="phpdocumentor-signature__response_type"><a href="classes/chillerlan-QRCode-Decoder-BitMatrix.html"><abbr title="\chillerlan\QRCode\Decoder\BitMatrix">BitMatrix</abbr></a></span>
            </section>

</article>
                    <article
        class="phpdocumentor-element
            -method
            -private
                                                        "
>
    <h4 class="phpdocumentor-element__name" id="method_calculateModuleSize">
        calculateModuleSize()
        <a href="classes/chillerlan-QRCode-Detector-Detector.html#method_calculateModuleSize" class="headerlink"><i class="fas fa-link"></i></a>

    </h4>
    <aside class="phpdocumentor-element-found-in">
    <abbr class="phpdocumentor-element-found-in__file" title="src/Detector/Detector.php"><a href="files/src-detector-detector.html"><abbr title="src/Detector/Detector.php">Detector.php</abbr></a></abbr>
    :
    <span class="phpdocumentor-element-found-in__line">82</span>

    </aside>

        <p class="phpdocumentor-summary">Computes an average estimated module size based on estimated derived from the positions
of the three finder patterns.</p>

    <code class="phpdocumentor-code phpdocumentor-signature ">
    <span class="phpdocumentor-signature__visibility">private</span>
                    <span class="phpdocumentor-signature__name">calculateModuleSize</span><span>(</span><span class="phpdocumentor-signature__argument"><span class="phpdocumentor-signature__argument__return-type"><a href="classes/chillerlan-QRCode-Detector-FinderPattern.html"><abbr title="\chillerlan\QRCode\Detector\FinderPattern">FinderPattern</abbr></a>&nbsp;</span><span class="phpdocumentor-signature__argument__name">$topLeft</span></span><span class="phpdocumentor-signature__argument"><span>, </span><span class="phpdocumentor-signature__argument__return-type"><a href="classes/chillerlan-QRCode-Detector-FinderPattern.html"><abbr title="\chillerlan\QRCode\Detector\FinderPattern">FinderPattern</abbr></a>&nbsp;</span><span class="phpdocumentor-signature__argument__name">$topRight</span></span><span class="phpdocumentor-signature__argument"><span>, </span><span class="phpdocumentor-signature__argument__return-type"><a href="classes/chillerlan-QRCode-Detector-FinderPattern.html"><abbr title="\chillerlan\QRCode\Detector\FinderPattern">FinderPattern</abbr></a>&nbsp;</span><span class="phpdocumentor-signature__argument__name">$bottomLeft</span></span><span>)</span><span> : </span><span class="phpdocumentor-signature__response_type">float</span></code>

    <div class="phpdocumentor-label-line">
        </div>
    
        <h5 class="phpdocumentor-argument-list__heading">Parameters</h5>
    <dl class="phpdocumentor-argument-list">
                    <dt class="phpdocumentor-argument-list__entry">
                <span class="phpdocumentor-signature__argument__name">$topLeft</span>
                : <span class="phpdocumentor-signature__argument__return-type"><a href="classes/chillerlan-QRCode-Detector-FinderPattern.html"><abbr title="\chillerlan\QRCode\Detector\FinderPattern">FinderPattern</abbr></a></span>
                            </dt>
            <dd class="phpdocumentor-argument-list__definition">
                
            </dd>
                    <dt class="phpdocumentor-argument-list__entry">
                <span class="phpdocumentor-signature__argument__name">$topRight</span>
                : <span class="phpdocumentor-signature__argument__return-type"><a href="classes/chillerlan-QRCode-Detector-FinderPattern.html"><abbr title="\chillerlan\QRCode\Detector\FinderPattern">FinderPattern</abbr></a></span>
                            </dt>
            <dd class="phpdocumentor-argument-list__definition">
                
            </dd>
                    <dt class="phpdocumentor-argument-list__entry">
                <span class="phpdocumentor-signature__argument__name">$bottomLeft</span>
                : <span class="phpdocumentor-signature__argument__return-type"><a href="classes/chillerlan-QRCode-Detector-FinderPattern.html"><abbr title="\chillerlan\QRCode\Detector\FinderPattern">FinderPattern</abbr></a></span>
                            </dt>
            <dd class="phpdocumentor-argument-list__definition">
                
            </dd>
            </dl>

    
    <h5 class="phpdocumentor-tag-list__heading" id="tags">
        Tags
        <a href="classes/chillerlan-QRCode-Detector-Detector.html#method_calculateModuleSize#tags" class="headerlink"><i class="fas fa-link"></i></a>

    </h5>
    <dl class="phpdocumentor-tag-list">
                                    <dt class="phpdocumentor-tag-list__entry">
                    <span class="phpdocumentor-tag__name">throws</span>
                </dt>
                <dd class="phpdocumentor-tag-list__definition">
                                                                <span class="phpdocumentor-tag-link"><a href="classes/chillerlan-QRCode-Detector-QRCodeDetectorException.html"><abbr title="\chillerlan\QRCode\Detector\QRCodeDetectorException">QRCodeDetectorException</abbr></a></span>
                                                            
                                             
                                    </dd>
                                            </dl>

            <section>
        <h5 class="phpdocumentor-return-value__heading">Return values</h5>
        <span class="phpdocumentor-signature__response_type">float</span>
            </section>

</article>
                    <article
        class="phpdocumentor-element
            -method
            -private
                                                        "
>
    <h4 class="phpdocumentor-element__name" id="method_calculateModuleSizeOneWay">
        calculateModuleSizeOneWay()
        <a href="classes/chillerlan-QRCode-Detector-Detector.html#method_calculateModuleSizeOneWay" class="headerlink"><i class="fas fa-link"></i></a>

    </h4>
    <aside class="phpdocumentor-element-found-in">
    <abbr class="phpdocumentor-element-found-in__file" title="src/Detector/Detector.php"><a href="files/src-detector-detector.html"><abbr title="src/Detector/Detector.php">Detector.php</abbr></a></abbr>
    :
    <span class="phpdocumentor-element-found-in__line">101</span>

    </aside>

        <p class="phpdocumentor-summary">Estimates module size based on two finder patterns -- it uses
#sizeOfBlackWhiteBlackRunBothWays(int, int, int, int) to figure the
width of each, measuring along the axis between their centers.</p>

    <code class="phpdocumentor-code phpdocumentor-signature ">
    <span class="phpdocumentor-signature__visibility">private</span>
                    <span class="phpdocumentor-signature__name">calculateModuleSizeOneWay</span><span>(</span><span class="phpdocumentor-signature__argument"><span class="phpdocumentor-signature__argument__return-type"><a href="classes/chillerlan-QRCode-Detector-FinderPattern.html"><abbr title="\chillerlan\QRCode\Detector\FinderPattern">FinderPattern</abbr></a>&nbsp;</span><span class="phpdocumentor-signature__argument__name">$a</span></span><span class="phpdocumentor-signature__argument"><span>, </span><span class="phpdocumentor-signature__argument__return-type"><a href="classes/chillerlan-QRCode-Detector-FinderPattern.html"><abbr title="\chillerlan\QRCode\Detector\FinderPattern">FinderPattern</abbr></a>&nbsp;</span><span class="phpdocumentor-signature__argument__name">$b</span></span><span>)</span><span> : </span><span class="phpdocumentor-signature__response_type">float</span></code>

    <div class="phpdocumentor-label-line">
        </div>
    
        <h5 class="phpdocumentor-argument-list__heading">Parameters</h5>
    <dl class="phpdocumentor-argument-list">
                    <dt class="phpdocumentor-argument-list__entry">
                <span class="phpdocumentor-signature__argument__name">$a</span>
                : <span class="phpdocumentor-signature__argument__return-type"><a href="classes/chillerlan-QRCode-Detector-FinderPattern.html"><abbr title="\chillerlan\QRCode\Detector\FinderPattern">FinderPattern</abbr></a></span>
                            </dt>
            <dd class="phpdocumentor-argument-list__definition">
                
            </dd>
                    <dt class="phpdocumentor-argument-list__entry">
                <span class="phpdocumentor-signature__argument__name">$b</span>
                : <span class="phpdocumentor-signature__argument__return-type"><a href="classes/chillerlan-QRCode-Detector-FinderPattern.html"><abbr title="\chillerlan\QRCode\Detector\FinderPattern">FinderPattern</abbr></a></span>
                            </dt>
            <dd class="phpdocumentor-argument-list__definition">
                
            </dd>
            </dl>

    
            <section>
        <h5 class="phpdocumentor-return-value__heading">Return values</h5>
        <span class="phpdocumentor-signature__response_type">float</span>
            </section>

</article>
                    <article
        class="phpdocumentor-element
            -method
            -private
                                                        "
>
    <h4 class="phpdocumentor-element__name" id="method_computeDimension">
        computeDimension()
        <a href="classes/chillerlan-QRCode-Detector-Detector.html#method_computeDimension" class="headerlink"><i class="fas fa-link"></i></a>

    </h4>
    <aside class="phpdocumentor-element-found-in">
    <abbr class="phpdocumentor-element-found-in__file" title="src/Detector/Detector.php"><a href="files/src-detector-detector.html"><abbr title="src/Detector/Detector.php">Detector.php</abbr></a></abbr>
    :
    <span class="phpdocumentor-element-found-in__line">239</span>

    </aside>

        <p class="phpdocumentor-summary">Computes the dimension (number of modules on a size) of the QR Code based on the position
of the finder patterns and estimated module size.</p>

    <code class="phpdocumentor-code phpdocumentor-signature ">
    <span class="phpdocumentor-signature__visibility">private</span>
                    <span class="phpdocumentor-signature__name">computeDimension</span><span>(</span><span class="phpdocumentor-signature__argument"><span class="phpdocumentor-signature__argument__return-type"><a href="classes/chillerlan-QRCode-Detector-FinderPattern.html"><abbr title="\chillerlan\QRCode\Detector\FinderPattern">FinderPattern</abbr></a>&nbsp;</span><span class="phpdocumentor-signature__argument__name">$nw</span></span><span class="phpdocumentor-signature__argument"><span>, </span><span class="phpdocumentor-signature__argument__return-type"><a href="classes/chillerlan-QRCode-Detector-FinderPattern.html"><abbr title="\chillerlan\QRCode\Detector\FinderPattern">FinderPattern</abbr></a>&nbsp;</span><span class="phpdocumentor-signature__argument__name">$ne</span></span><span class="phpdocumentor-signature__argument"><span>, </span><span class="phpdocumentor-signature__argument__return-type"><a href="classes/chillerlan-QRCode-Detector-FinderPattern.html"><abbr title="\chillerlan\QRCode\Detector\FinderPattern">FinderPattern</abbr></a>&nbsp;</span><span class="phpdocumentor-signature__argument__name">$sw</span></span><span class="phpdocumentor-signature__argument"><span>, </span><span class="phpdocumentor-signature__argument__return-type">float&nbsp;</span><span class="phpdocumentor-signature__argument__name">$size</span></span><span>)</span><span> : </span><span class="phpdocumentor-signature__response_type">int</span></code>

    <div class="phpdocumentor-label-line">
        </div>
    
        <h5 class="phpdocumentor-argument-list__heading">Parameters</h5>
    <dl class="phpdocumentor-argument-list">
                    <dt class="phpdocumentor-argument-list__entry">
                <span class="phpdocumentor-signature__argument__name">$nw</span>
                : <span class="phpdocumentor-signature__argument__return-type"><a href="classes/chillerlan-QRCode-Detector-FinderPattern.html"><abbr title="\chillerlan\QRCode\Detector\FinderPattern">FinderPattern</abbr></a></span>
                            </dt>
            <dd class="phpdocumentor-argument-list__definition">
                
            </dd>
                    <dt class="phpdocumentor-argument-list__entry">
                <span class="phpdocumentor-signature__argument__name">$ne</span>
                : <span class="phpdocumentor-signature__argument__return-type"><a href="classes/chillerlan-QRCode-Detector-FinderPattern.html"><abbr title="\chillerlan\QRCode\Detector\FinderPattern">FinderPattern</abbr></a></span>
                            </dt>
            <dd class="phpdocumentor-argument-list__definition">
                
            </dd>
                    <dt class="phpdocumentor-argument-list__entry">
                <span class="phpdocumentor-signature__argument__name">$sw</span>
                : <span class="phpdocumentor-signature__argument__return-type"><a href="classes/chillerlan-QRCode-Detector-FinderPattern.html"><abbr title="\chillerlan\QRCode\Detector\FinderPattern">FinderPattern</abbr></a></span>
                            </dt>
            <dd class="phpdocumentor-argument-list__definition">
                
            </dd>
                    <dt class="phpdocumentor-argument-list__entry">
                <span class="phpdocumentor-signature__argument__name">$size</span>
                : <span class="phpdocumentor-signature__argument__return-type">float</span>
                            </dt>
            <dd class="phpdocumentor-argument-list__definition">
                
            </dd>
            </dl>

    
    <h5 class="phpdocumentor-tag-list__heading" id="tags">
        Tags
        <a href="classes/chillerlan-QRCode-Detector-Detector.html#method_computeDimension#tags" class="headerlink"><i class="fas fa-link"></i></a>

    </h5>
    <dl class="phpdocumentor-tag-list">
                                    <dt class="phpdocumentor-tag-list__entry">
                    <span class="phpdocumentor-tag__name">throws</span>
                </dt>
                <dd class="phpdocumentor-tag-list__definition">
                                                                <span class="phpdocumentor-tag-link"><a href="classes/chillerlan-QRCode-Detector-QRCodeDetectorException.html"><abbr title="\chillerlan\QRCode\Detector\QRCodeDetectorException">QRCodeDetectorException</abbr></a></span>
                                                            
                                             
                                    </dd>
                                            </dl>

            <section>
        <h5 class="phpdocumentor-return-value__heading">Return values</h5>
        <span class="phpdocumentor-signature__response_type">int</span>
            </section>

</article>
                    <article
        class="phpdocumentor-element
            -method
            -private
                                                        "
>
    <h4 class="phpdocumentor-element__name" id="method_createTransform">
        createTransform()
        <a href="classes/chillerlan-QRCode-Detector-Detector.html#method_createTransform" class="headerlink"><i class="fas fa-link"></i></a>

    </h4>
    <aside class="phpdocumentor-element-found-in">
    <abbr class="phpdocumentor-element-found-in__file" title="src/Detector/Detector.php"><a href="files/src-detector-detector.html"><abbr title="src/Detector/Detector.php">Detector.php</abbr></a></abbr>
    :
    <span class="phpdocumentor-element-found-in__line">308</span>

    </aside>

    
    <code class="phpdocumentor-code phpdocumentor-signature ">
    <span class="phpdocumentor-signature__visibility">private</span>
                    <span class="phpdocumentor-signature__name">createTransform</span><span>(</span><span class="phpdocumentor-signature__argument"><span class="phpdocumentor-signature__argument__return-type"><a href="classes/chillerlan-QRCode-Detector-FinderPattern.html"><abbr title="\chillerlan\QRCode\Detector\FinderPattern">FinderPattern</abbr></a>&nbsp;</span><span class="phpdocumentor-signature__argument__name">$nw</span></span><span class="phpdocumentor-signature__argument"><span>, </span><span class="phpdocumentor-signature__argument__return-type"><a href="classes/chillerlan-QRCode-Detector-FinderPattern.html"><abbr title="\chillerlan\QRCode\Detector\FinderPattern">FinderPattern</abbr></a>&nbsp;</span><span class="phpdocumentor-signature__argument__name">$ne</span></span><span class="phpdocumentor-signature__argument"><span>, </span><span class="phpdocumentor-signature__argument__return-type"><a href="classes/chillerlan-QRCode-Detector-FinderPattern.html"><abbr title="\chillerlan\QRCode\Detector\FinderPattern">FinderPattern</abbr></a>&nbsp;</span><span class="phpdocumentor-signature__argument__name">$sw</span></span><span class="phpdocumentor-signature__argument"><span>, </span><span class="phpdocumentor-signature__argument__return-type">int&nbsp;</span><span class="phpdocumentor-signature__argument__name">$size</span></span><span class="phpdocumentor-signature__argument"><span>[</span><span>, </span><span class="phpdocumentor-signature__argument__return-type"><a href="classes/chillerlan-QRCode-Detector-AlignmentPattern.html"><abbr title="\chillerlan\QRCode\Detector\AlignmentPattern">AlignmentPattern</abbr></a>&nbsp;</span><span class="phpdocumentor-signature__argument__name">$ap</span><span> = </span><span class="phpdocumentor-signature__argument__default-value">null</span><span> ]</span></span><span>)</span><span> : </span><span class="phpdocumentor-signature__response_type"><a href="classes/chillerlan-QRCode-Detector-PerspectiveTransform.html"><abbr title="\chillerlan\QRCode\Detector\PerspectiveTransform">PerspectiveTransform</abbr></a></span></code>

    <div class="phpdocumentor-label-line">
        </div>
    
        <h5 class="phpdocumentor-argument-list__heading">Parameters</h5>
    <dl class="phpdocumentor-argument-list">
                    <dt class="phpdocumentor-argument-list__entry">
                <span class="phpdocumentor-signature__argument__name">$nw</span>
                : <span class="phpdocumentor-signature__argument__return-type"><a href="classes/chillerlan-QRCode-Detector-FinderPattern.html"><abbr title="\chillerlan\QRCode\Detector\FinderPattern">FinderPattern</abbr></a></span>
                            </dt>
            <dd class="phpdocumentor-argument-list__definition">
                
            </dd>
                    <dt class="phpdocumentor-argument-list__entry">
                <span class="phpdocumentor-signature__argument__name">$ne</span>
                : <span class="phpdocumentor-signature__argument__return-type"><a href="classes/chillerlan-QRCode-Detector-FinderPattern.html"><abbr title="\chillerlan\QRCode\Detector\FinderPattern">FinderPattern</abbr></a></span>
                            </dt>
            <dd class="phpdocumentor-argument-list__definition">
                
            </dd>
                    <dt class="phpdocumentor-argument-list__entry">
                <span class="phpdocumentor-signature__argument__name">$sw</span>
                : <span class="phpdocumentor-signature__argument__return-type"><a href="classes/chillerlan-QRCode-Detector-FinderPattern.html"><abbr title="\chillerlan\QRCode\Detector\FinderPattern">FinderPattern</abbr></a></span>
                            </dt>
            <dd class="phpdocumentor-argument-list__definition">
                
            </dd>
                    <dt class="phpdocumentor-argument-list__entry">
                <span class="phpdocumentor-signature__argument__name">$size</span>
                : <span class="phpdocumentor-signature__argument__return-type">int</span>
                            </dt>
            <dd class="phpdocumentor-argument-list__definition">
                
            </dd>
                    <dt class="phpdocumentor-argument-list__entry">
                <span class="phpdocumentor-signature__argument__name">$ap</span>
                : <span class="phpdocumentor-signature__argument__return-type"><a href="classes/chillerlan-QRCode-Detector-AlignmentPattern.html"><abbr title="\chillerlan\QRCode\Detector\AlignmentPattern">AlignmentPattern</abbr></a></span>
                 = <span class="phpdocumentor-signature__argument__default-value">null</span>            </dt>
            <dd class="phpdocumentor-argument-list__definition">
                
            </dd>
            </dl>

    
            <section>
        <h5 class="phpdocumentor-return-value__heading">Return values</h5>
        <span class="phpdocumentor-signature__response_type"><a href="classes/chillerlan-QRCode-Detector-PerspectiveTransform.html"><abbr title="\chillerlan\QRCode\Detector\PerspectiveTransform">PerspectiveTransform</abbr></a></span>
            </section>

</article>
                    <article
        class="phpdocumentor-element
            -method
            -private
                                                        "
>
    <h4 class="phpdocumentor-element__name" id="method_findAlignmentInRegion">
        findAlignmentInRegion()
        <a href="classes/chillerlan-QRCode-Detector-Detector.html#method_findAlignmentInRegion" class="headerlink"><i class="fas fa-link"></i></a>

    </h4>
    <aside class="phpdocumentor-element-found-in">
    <abbr class="phpdocumentor-element-found-in__file" title="src/Detector/Detector.php"><a href="files/src-detector-detector.html"><abbr title="src/Detector/Detector.php">Detector.php</abbr></a></abbr>
    :
    <span class="phpdocumentor-element-found-in__line">274</span>

    </aside>

        <p class="phpdocumentor-summary">Attempts to locate an alignment pattern in a limited region of the image, which is
guessed to contain it.</p>

    <code class="phpdocumentor-code phpdocumentor-signature ">
    <span class="phpdocumentor-signature__visibility">private</span>
                    <span class="phpdocumentor-signature__name">findAlignmentInRegion</span><span>(</span><span class="phpdocumentor-signature__argument"><span class="phpdocumentor-signature__argument__return-type">float&nbsp;</span><span class="phpdocumentor-signature__argument__name">$overallEstModuleSize</span></span><span class="phpdocumentor-signature__argument"><span>, </span><span class="phpdocumentor-signature__argument__return-type">int&nbsp;</span><span class="phpdocumentor-signature__argument__name">$estAlignmentX</span></span><span class="phpdocumentor-signature__argument"><span>, </span><span class="phpdocumentor-signature__argument__return-type">int&nbsp;</span><span class="phpdocumentor-signature__argument__name">$estAlignmentY</span></span><span class="phpdocumentor-signature__argument"><span>, </span><span class="phpdocumentor-signature__argument__return-type">float&nbsp;</span><span class="phpdocumentor-signature__argument__name">$allowanceFactor</span></span><span>)</span><span> : </span><span class="phpdocumentor-signature__response_type"><a href="classes/chillerlan-QRCode-Detector-AlignmentPattern.html"><abbr title="\chillerlan\QRCode\Detector\AlignmentPattern">AlignmentPattern</abbr></a>|null</span></code>

    <div class="phpdocumentor-label-line">
        </div>
    
        <h5 class="phpdocumentor-argument-list__heading">Parameters</h5>
    <dl class="phpdocumentor-argument-list">
                    <dt class="phpdocumentor-argument-list__entry">
                <span class="phpdocumentor-signature__argument__name">$overallEstModuleSize</span>
                : <span class="phpdocumentor-signature__argument__return-type">float</span>
                            </dt>
            <dd class="phpdocumentor-argument-list__definition">
                    <section class="phpdocumentor-description"><p>estimated module size so far</p>
</section>

            </dd>
                    <dt class="phpdocumentor-argument-list__entry">
                <span class="phpdocumentor-signature__argument__name">$estAlignmentX</span>
                : <span class="phpdocumentor-signature__argument__return-type">int</span>
                            </dt>
            <dd class="phpdocumentor-argument-list__definition">
                    <section class="phpdocumentor-description"><p>x coordinate of center of area probably containing alignment pattern</p>
</section>

            </dd>
                    <dt class="phpdocumentor-argument-list__entry">
                <span class="phpdocumentor-signature__argument__name">$estAlignmentY</span>
                : <span class="phpdocumentor-signature__argument__return-type">int</span>
                            </dt>
            <dd class="phpdocumentor-argument-list__definition">
                    <section class="phpdocumentor-description"><p>y coordinate of above</p>
</section>

            </dd>
                    <dt class="phpdocumentor-argument-list__entry">
                <span class="phpdocumentor-signature__argument__name">$allowanceFactor</span>
                : <span class="phpdocumentor-signature__argument__return-type">float</span>
                            </dt>
            <dd class="phpdocumentor-argument-list__definition">
                    <section class="phpdocumentor-description"><p>number of pixels in all directions to search from the center</p>
</section>

            </dd>
            </dl>

    
            <section>
        <h5 class="phpdocumentor-return-value__heading">Return values</h5>
        <span class="phpdocumentor-signature__response_type"><a href="classes/chillerlan-QRCode-Detector-AlignmentPattern.html"><abbr title="\chillerlan\QRCode\Detector\AlignmentPattern">AlignmentPattern</abbr></a>|null</span>
                    &mdash;
                <section class="phpdocumentor-description"><p>if found, or null otherwise</p>
</section>

            </section>

</article>
                    <article
        class="phpdocumentor-element
            -method
            -private
                                                        "
>
    <h4 class="phpdocumentor-element__name" id="method_sizeOfBlackWhiteBlackRun">
        sizeOfBlackWhiteBlackRun()
        <a href="classes/chillerlan-QRCode-Detector-Detector.html#method_sizeOfBlackWhiteBlackRun" class="headerlink"><i class="fas fa-link"></i></a>

    </h4>
    <aside class="phpdocumentor-element-found-in">
    <abbr class="phpdocumentor-element-found-in__file" title="src/Detector/Detector.php"><a href="files/src-detector-detector.html"><abbr title="src/Detector/Detector.php">Detector.php</abbr></a></abbr>
    :
    <span class="phpdocumentor-element-found-in__line">168</span>

    </aside>

        <p class="phpdocumentor-summary">This method traces a line from a po$in the image, in the direction towards another point.</p>

    <code class="phpdocumentor-code phpdocumentor-signature ">
    <span class="phpdocumentor-signature__visibility">private</span>
                    <span class="phpdocumentor-signature__name">sizeOfBlackWhiteBlackRun</span><span>(</span><span class="phpdocumentor-signature__argument"><span class="phpdocumentor-signature__argument__return-type">int&nbsp;</span><span class="phpdocumentor-signature__argument__name">$fromX</span></span><span class="phpdocumentor-signature__argument"><span>, </span><span class="phpdocumentor-signature__argument__return-type">int&nbsp;</span><span class="phpdocumentor-signature__argument__name">$fromY</span></span><span class="phpdocumentor-signature__argument"><span>, </span><span class="phpdocumentor-signature__argument__return-type">int&nbsp;</span><span class="phpdocumentor-signature__argument__name">$toX</span></span><span class="phpdocumentor-signature__argument"><span>, </span><span class="phpdocumentor-signature__argument__return-type">int&nbsp;</span><span class="phpdocumentor-signature__argument__name">$toY</span></span><span>)</span><span> : </span><span class="phpdocumentor-signature__response_type">float</span></code>

    <div class="phpdocumentor-label-line">
        </div>
        <section class="phpdocumentor-description"><p>It begins in a black region, and keeps going until it finds white, then black, then white again.
It reports the distance from the start to this point.</p>
<p>This is used when figuring out how wide a finder pattern is, when the finder pattern
may be skewed or rotated.</p>
</section>

        <h5 class="phpdocumentor-argument-list__heading">Parameters</h5>
    <dl class="phpdocumentor-argument-list">
                    <dt class="phpdocumentor-argument-list__entry">
                <span class="phpdocumentor-signature__argument__name">$fromX</span>
                : <span class="phpdocumentor-signature__argument__return-type">int</span>
                            </dt>
            <dd class="phpdocumentor-argument-list__definition">
                
            </dd>
                    <dt class="phpdocumentor-argument-list__entry">
                <span class="phpdocumentor-signature__argument__name">$fromY</span>
                : <span class="phpdocumentor-signature__argument__return-type">int</span>
                            </dt>
            <dd class="phpdocumentor-argument-list__definition">
                
            </dd>
                    <dt class="phpdocumentor-argument-list__entry">
                <span class="phpdocumentor-signature__argument__name">$toX</span>
                : <span class="phpdocumentor-signature__argument__return-type">int</span>
                            </dt>
            <dd class="phpdocumentor-argument-list__definition">
                
            </dd>
                    <dt class="phpdocumentor-argument-list__entry">
                <span class="phpdocumentor-signature__argument__name">$toY</span>
                : <span class="phpdocumentor-signature__argument__return-type">int</span>
                            </dt>
            <dd class="phpdocumentor-argument-list__definition">
                
            </dd>
            </dl>

    
            <section>
        <h5 class="phpdocumentor-return-value__heading">Return values</h5>
        <span class="phpdocumentor-signature__response_type">float</span>
            </section>

</article>
                    <article
        class="phpdocumentor-element
            -method
            -private
                                                        "
>
    <h4 class="phpdocumentor-element__name" id="method_sizeOfBlackWhiteBlackRunBothWays">
        sizeOfBlackWhiteBlackRunBothWays()
        <a href="classes/chillerlan-QRCode-Detector-Detector.html#method_sizeOfBlackWhiteBlackRunBothWays" class="headerlink"><i class="fas fa-link"></i></a>

    </h4>
    <aside class="phpdocumentor-element-found-in">
    <abbr class="phpdocumentor-element-found-in__file" title="src/Detector/Detector.php"><a href="files/src-detector-detector.html"><abbr title="src/Detector/Detector.php">Detector.php</abbr></a></abbr>
    :
    <span class="phpdocumentor-element-found-in__line">125</span>

    </aside>

        <p class="phpdocumentor-summary">See #sizeOfBlackWhiteBlackRun(int, int, int, int); computes the total width of
a finder pattern by looking for a black-white-black run from the center in the direction
of another po$(another finder pattern center), and in the opposite direction too.</p>

    <code class="phpdocumentor-code phpdocumentor-signature ">
    <span class="phpdocumentor-signature__visibility">private</span>
                    <span class="phpdocumentor-signature__name">sizeOfBlackWhiteBlackRunBothWays</span><span>(</span><span class="phpdocumentor-signature__argument"><span class="phpdocumentor-signature__argument__return-type">float&nbsp;</span><span class="phpdocumentor-signature__argument__name">$fromX</span></span><span class="phpdocumentor-signature__argument"><span>, </span><span class="phpdocumentor-signature__argument__return-type">float&nbsp;</span><span class="phpdocumentor-signature__argument__name">$fromY</span></span><span class="phpdocumentor-signature__argument"><span>, </span><span class="phpdocumentor-signature__argument__return-type">float&nbsp;</span><span class="phpdocumentor-signature__argument__name">$toX</span></span><span class="phpdocumentor-signature__argument"><span>, </span><span class="phpdocumentor-signature__argument__return-type">float&nbsp;</span><span class="phpdocumentor-signature__argument__name">$toY</span></span><span>)</span><span> : </span><span class="phpdocumentor-signature__response_type">float</span></code>

    <div class="phpdocumentor-label-line">
        </div>
    
        <h5 class="phpdocumentor-argument-list__heading">Parameters</h5>
    <dl class="phpdocumentor-argument-list">
                    <dt class="phpdocumentor-argument-list__entry">
                <span class="phpdocumentor-signature__argument__name">$fromX</span>
                : <span class="phpdocumentor-signature__argument__return-type">float</span>
                            </dt>
            <dd class="phpdocumentor-argument-list__definition">
                
            </dd>
                    <dt class="phpdocumentor-argument-list__entry">
                <span class="phpdocumentor-signature__argument__name">$fromY</span>
                : <span class="phpdocumentor-signature__argument__return-type">float</span>
                            </dt>
            <dd class="phpdocumentor-argument-list__definition">
                
            </dd>
                    <dt class="phpdocumentor-argument-list__entry">
                <span class="phpdocumentor-signature__argument__name">$toX</span>
                : <span class="phpdocumentor-signature__argument__return-type">float</span>
                            </dt>
            <dd class="phpdocumentor-argument-list__definition">
                
            </dd>
                    <dt class="phpdocumentor-argument-list__entry">
                <span class="phpdocumentor-signature__argument__name">$toY</span>
                : <span class="phpdocumentor-signature__argument__return-type">float</span>
                            </dt>
            <dd class="phpdocumentor-argument-list__definition">
                
            </dd>
            </dl>

    
    <h5 class="phpdocumentor-tag-list__heading" id="tags">
        Tags
        <a href="classes/chillerlan-QRCode-Detector-Detector.html#method_sizeOfBlackWhiteBlackRunBothWays#tags" class="headerlink"><i class="fas fa-link"></i></a>

    </h5>
    <dl class="phpdocumentor-tag-list">
                                    <dt class="phpdocumentor-tag-list__entry">
                    <span class="phpdocumentor-tag__name">noinspection</span>
                </dt>
                <dd class="phpdocumentor-tag-list__definition">
                                                                                
                                                 <section class="phpdocumentor-description"><p>DuplicatedCode</p>
</section>

                                    </dd>
                                            </dl>

            <section>
        <h5 class="phpdocumentor-return-value__heading">Return values</h5>
        <span class="phpdocumentor-signature__response_type">float</span>
            </section>

</article>
            </section>

        <div class="phpdocumentor-modal" id="source-view">
    <div class="phpdocumentor-modal-bg" data-exit-button></div>
    <div class="phpdocumentor-modal-container">
        <div class="phpdocumentor-modal-content">
            <pre style="max-height: 500px; overflow-y: scroll" data-src="files/src/Detector/Detector.php.txt" class="language-php line-numbers linkable-line-numbers"></pre>
        </div>
        <button data-exit-button class="phpdocumentor-modal__close">&times;</button>
    </div>
</div>

    <script type="text/javascript">
        (function () {
            function loadExternalCodeSnippet(el, url, line) {
                Array.prototype.slice.call(el.querySelectorAll('pre[data-src]')).forEach((pre) => {
                    const src = url || pre.getAttribute('data-src').replace(/\\/g, '/');
                    const language = 'php';

                    const code = document.createElement('code');
                    code.className = 'language-' + language;
                    pre.textContent = '';
                    pre.setAttribute('data-line', line)
                    code.textContent = 'Loading…';
                    pre.appendChild(code);

                    var xhr = new XMLHttpRequest();

                    xhr.open('GET', src, true);

                    xhr.onreadystatechange = function () {
                        if (xhr.readyState !== 4) {
                            return;
                        }

                        if (xhr.status < 400 && xhr.responseText) {
                            code.textContent = xhr.responseText;
                            Prism.highlightElement(code);
                            return;
                        }

                        if (xhr.status === 404) {
                            code.textContent = '✖ Error: File could not be found';
                            return;
                        }

                        if (xhr.status >= 400) {
                            code.textContent = '✖ Error ' + xhr.status + ' while fetching file: ' + xhr.statusText;
                            return;
                        }

                        code.textContent = '✖ Error: An unknown error occurred';
                    };

                    xhr.send(null);
                });
            }

            const modalButtons = document.querySelectorAll("[data-modal]");
            const openedAsLocalFile = window.location.protocol === 'file:';
            if (modalButtons.length > 0 && openedAsLocalFile) {
                console.warn(
                    'Viewing the source code is unavailable because you are opening this page from the file:// scheme; ' +
                    'browsers block XHR requests when a page is opened this way'
                );
            }

            modalButtons.forEach(function (trigger) {
                if (openedAsLocalFile) {
                    trigger.setAttribute("hidden", "hidden");
                }

                trigger.addEventListener("click", function (event) {
                    event.preventDefault();
                    const modal = document.getElementById(trigger.dataset.modal);
                    if (!modal) {
                        console.error(`Modal with id "${trigger.dataset.modal}" could not be found`);
                        return;
                    }
                    modal.classList.add("phpdocumentor-modal__open");

                    loadExternalCodeSnippet(modal, trigger.dataset.src || null, trigger.dataset.line)
                    const exits = modal.querySelectorAll("[data-exit-button]");
                    exits.forEach(function (exit) {
                        exit.addEventListener("click", function (event) {
                            event.preventDefault();
                            modal.classList.remove("phpdocumentor-modal__open");
                        });
                    });
                });
            });
        })();
    </script>

    </article>
                                </section>
                <section class="phpdocumentor-on-this-page__sidebar">
                                
    <section class="phpdocumentor-on-this-page__content">
        <strong class="phpdocumentor-on-this-page__title">On this page</strong>

        <ul class="phpdocumentor-list -clean">
            <li class="phpdocumentor-on-this-page-section__title">Table Of Contents</li>
            <li>
                <ul class="phpdocumentor-list -clean">
                                                            <li><a href="classes/chillerlan-QRCode-Detector-Detector.html#toc-properties">Properties</a></li>
                                                            <li><a href="classes/chillerlan-QRCode-Detector-Detector.html#toc-methods">Methods</a></li>
                                    </ul>
            </li>
            
                            <li class="phpdocumentor-on-this-page-section__title">Properties</li>
                <li>
                    <ul class="phpdocumentor-list -clean">
                                                    <li><a href="classes/chillerlan-QRCode-Detector-Detector.html#property_matrix">$matrix<a href="classes/chillerlan-QRCode-Detector-Detector.html"></li>
                                            </ul>
                </li>
            
                        <li class="phpdocumentor-on-this-page-section__title">Methods</li>
            <li>
                <ul class="phpdocumentor-list -clean">
                                            <li><a href="classes/chillerlan-QRCode-Detector-Detector.html#method___construct">__construct()</a></li>
                                            <li><a href="classes/chillerlan-QRCode-Detector-Detector.html#method_detect">detect()</a></li>
                                            <li><a href="classes/chillerlan-QRCode-Detector-Detector.html#method_calculateModuleSize">calculateModuleSize()</a></li>
                                            <li><a href="classes/chillerlan-QRCode-Detector-Detector.html#method_calculateModuleSizeOneWay">calculateModuleSizeOneWay()</a></li>
                                            <li><a href="classes/chillerlan-QRCode-Detector-Detector.html#method_computeDimension">computeDimension()</a></li>
                                            <li><a href="classes/chillerlan-QRCode-Detector-Detector.html#method_createTransform">createTransform()</a></li>
                                            <li><a href="classes/chillerlan-QRCode-Detector-Detector.html#method_findAlignmentInRegion">findAlignmentInRegion()</a></li>
                                            <li><a href="classes/chillerlan-QRCode-Detector-Detector.html#method_sizeOfBlackWhiteBlackRun">sizeOfBlackWhiteBlackRun()</a></li>
                                            <li><a href="classes/chillerlan-QRCode-Detector-Detector.html#method_sizeOfBlackWhiteBlackRunBothWays">sizeOfBlackWhiteBlackRunBothWays()</a></li>
                                    </ul>
            </li>
                    </ul>
    </section>

                </section>
                            </div>
            <section data-search-results class="phpdocumentor-search-results phpdocumentor-search-results--hidden">
    <section class="phpdocumentor-search-results__dialog">
        <header class="phpdocumentor-search-results__header">
            <h2 class="phpdocumentor-search-results__title">Search results</h2>
            <button class="phpdocumentor-search-results__close"><i class="fas fa-times"></i></button>
        </header>
        <section class="phpdocumentor-search-results__body">
            <ul class="phpdocumentor-search-results__entries"></ul>
        </section>
    </section>
</section>
        </div>
        <a href="classes/chillerlan-QRCode-Detector-Detector.html#top" class="phpdocumentor-back-to-top"><i class="fas fa-chevron-circle-up"></i></a>

    </main>

    <script>
        cssVars({});
    </script>
    <script src="https://cdn.jsdelivr.net/npm/prismjs@1.23.0/prism.min.js"></script>
    <script src="https://cdn.jsdelivr.net/npm/prismjs@1.23.0/plugins/autoloader/prism-autoloader.min.js"></script>
    <script src="https://cdn.jsdelivr.net/npm/prismjs@1.23.0/plugins/line-numbers/prism-line-numbers.min.js"></script>
    <script src="https://cdn.jsdelivr.net/npm/prismjs@1.23.0/plugins/line-highlight/prism-line-highlight.min.js"></script>
</body>
</html>