<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<title>Control the brightness, saturation, and hue</title>
</head>
<body><div class="manualnavbar" style="text-align: center;">
<div class="prev" style="text-align: left; float: left;"><a href="gmagick.minifyimage.html">Gmagick::minifyimage</a></div>
<div class="next" style="text-align: right; float: right;"><a href="gmagick.motionblurimage.html">Gmagick::motionblurimage</a></div>
<div class="up"><a href="class.gmagick.html">Gmagick</a></div>
<div class="home"><a href="index.html">PHP Manual</a></div>
</div><hr /><div id="gmagick.modulateimage" class="refentry">
<div class="refnamediv">
<h1 class="refname">Gmagick::modulateimage</h1>
<p class="verinfo">(PECL gmagick >= Unknown)</p><p class="refpurpose"><span class="refname">Gmagick::modulateimage</span> — <span class="dc-title">Control the brightness, saturation, and hue</span></p>
</div>
<div class="refsect1 description" id="refsect1-gmagick.modulateimage-description">
<h3 class="title">Description</h3>
<div class="methodsynopsis dc-description">
<span class="modifier">public</span> <span class="type"><a href="class.gmagick.html" class="type Gmagick">Gmagick</a></span> <span class="methodname"><strong>Gmagick::modulateimage</strong></span>
( <span class="methodparam"><span class="type">float</span> <code class="parameter">$brightness</code></span>
, <span class="methodparam"><span class="type">float</span> <code class="parameter">$saturation</code></span>
, <span class="methodparam"><span class="type">float</span> <code class="parameter">$hue</code></span>
)</div>
<p class="para rdfs-comment">
Lets you control the brightness, saturation, and hue of an image. Hue is the
percentage of absolute rotation from the current position. For example 50 results
in a counter-clockwise rotation of 90 degrees, 150 results in a clockwise rotation
of 90 degrees, with 0 and 200 both resulting in a rotation of 180 degrees.
</p>
</div>
<div class="refsect1 parameters" id="refsect1-gmagick.modulateimage-parameters">
<h3 class="title">Parameters</h3>
<p class="para">
<dl>
<dt>
<code class="parameter">brightness</code></dt>
<dd>
<p class="para">
The percent change in brighness (-100 thru +100).
</p>
</dd>
<dt>
<code class="parameter">saturation</code></dt>
<dd>
<p class="para">
The percent change in saturation (-100 thru +100)
</p>
</dd>
<dt>
<code class="parameter">hue</code></dt>
<dd>
<p class="para">
The percent change in hue (-100 thru +100)
</p>
</dd>
</dl>
</p>
</div>
<div class="refsect1 returnvalues" id="refsect1-gmagick.modulateimage-returnvalues">
<h3 class="title">Return Values</h3>
<p class="para">
The Gmagick object on success
</p>
</div>
<div class="refsect1 errors" id="refsect1-gmagick.modulateimage-errors">
<h3 class="title">Errors/Exceptions</h3>
<p class="para">
Throws an
<strong class="classname">GmagickException</strong> on error.
</p>
</div>
</div><hr /><div class="manualnavbar" style="text-align: center;">
<div class="prev" style="text-align: left; float: left;"><a href="gmagick.minifyimage.html">Gmagick::minifyimage</a></div>
<div class="next" style="text-align: right; float: right;"><a href="gmagick.motionblurimage.html">Gmagick::motionblurimage</a></div>
<div class="up"><a href="class.gmagick.html">Gmagick</a></div>
<div class="home"><a href="index.html">PHP Manual</a></div>
</div></body></html>
