mirror of
https://github.com/sigmasternchen/php-doc-en
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05da70232c
git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@265650 c90b9560-bf6c-de11-be94-00142212c4b1
128 lines
3.1 KiB
XML
128 lines
3.1 KiB
XML
<?xml version="1.0" encoding="iso-8859-1"?>
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<!-- $Revision: 1.10 $ -->
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<refentry xml:id="function.imagecolorresolve" xmlns="http://docbook.org/ns/docbook">
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<refnamediv>
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<refname>imagecolorresolve</refname>
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<refpurpose>Get the index of the specified color or its closest possible alternative</refpurpose>
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</refnamediv>
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<refsect1 role="description">
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&reftitle.description;
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<methodsynopsis>
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<type>int</type><methodname>imagecolorresolve</methodname>
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<methodparam><type>resource</type><parameter>image</parameter></methodparam>
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<methodparam><type>int</type><parameter>red</parameter></methodparam>
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<methodparam><type>int</type><parameter>green</parameter></methodparam>
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<methodparam><type>int</type><parameter>blue</parameter></methodparam>
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</methodsynopsis>
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<para>
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This function is guaranteed to return a color index for a
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requested color, either the exact color or the closest possible
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alternative.
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</para>
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<para>
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If you created the image from a file, only colors used in the image are
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resolved. Colors present only in the pallete are not resolved.
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</para>
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</refsect1>
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<refsect1 role="parameters">
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&reftitle.parameters;
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<para>
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<variablelist>
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&gd.image.description;
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<varlistentry>
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<term><parameter>red</parameter></term>
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<listitem>
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<para>
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Value of red component.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><parameter>green</parameter></term>
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<listitem>
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<para>
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Value of green component.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><parameter>blue</parameter></term>
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<listitem>
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<para>
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Value of blue component.
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</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</para>
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</refsect1>
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<refsect1 role="returnvalues">
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&reftitle.returnvalues;
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<para>
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Returns a color index.
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</para>
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</refsect1>
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<refsect1 role="examples">
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&reftitle.examples;
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<example>
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<title>Using <function>imagecoloresolve</function> to get colors from an image</title>
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<programlisting role="php">
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<![CDATA[
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<?php
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// Load an image
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$im = imagecreatefromgif('phplogo.gif');
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// Get closest colors from the image
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$colors = array();
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$colors[] = imagecolorresolve($im, 255, 255, 255, 0);
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$colors[] = imagecolorresolve($im, 0, 0, 200, 127);
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// Output
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print_r($colors);
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imagedestroy($im);
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?>
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]]>
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</programlisting>
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&example.outputs.similar;
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<screen>
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<![CDATA[
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Array
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(
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[0] => 89
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[1] => 85
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)
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]]>
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</screen>
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</example>
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</refsect1>
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<refsect1 role="seealso">
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&reftitle.seealso;
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<para>
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<simplelist>
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<member><function>imagecolorclosest</function></member>
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</simplelist>
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</para>
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</refsect1>
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</refentry>
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<!-- Keep this comment at the end of the file
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Local variables:
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mode: sgml
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sgml-omittag:t
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sgml-shorttag:t
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sgml-minimize-attributes:nil
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sgml-always-quote-attributes:t
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sgml-indent-step:1
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sgml-indent-data:t
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indent-tabs-mode:nil
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sgml-parent-document:nil
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sgml-default-dtd-file:"../../../../manual.ced"
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sgml-exposed-tags:nil
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sgml-local-catalogs:nil
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sgml-local-ecat-files:nil
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End:
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vim600: syn=xml fen fdm=syntax fdl=2 si
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vim: et tw=78 syn=sgml
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vi: ts=1 sw=1
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-->
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