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<?xml version="1.0" encoding="iso-8859-1"?>
<!-- $Revision: 1.3 $ -->
<!-- splitted from ./en/functions/image.xml, last change in rev 1.36 -->
<refentry id="function.imagegammacorrect">
<refnamediv>
<refname>imagegammacorrect</refname>
<refpurpose>Apply a gamma correction to a GD image</refpurpose>
</refnamediv>
<refsect1>
<title>Description</title>
<methodsynopsis>
<type>int</type><methodname>imagegammacorrect</methodname>
<methodparam><type>resource</type><parameter>image</parameter></methodparam>
<methodparam><type>float</type><parameter>inputgamma</parameter></methodparam>
<methodparam><type>float</type><parameter>outputgamma</parameter></methodparam>
</methodsynopsis>
<para>
The <function>imagegammacorrect</function> function applies gamma
correction to a gd image stream (<parameter>image</parameter>) given
an input gamma, the parameter <parameter>inputgamma</parameter>
and an output gamma, the parameter
<parameter>outputgamma</parameter>.
</para>
</refsect1>
</refentry>
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