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<?xml version="1.0" encoding="utf-8"?>
<page xmlns="http://projectmallard.org/1.0/" type="topic" style="question" id="color-notspecifiededid" xml:lang="ja">
<info>
<link type="guide" xref="color#problems"/>
<link type="guide" xref="color-gettingprofiles"/>
<link type="guide" xref="color-why-calibrate"/>
<desc>Default monitor profiles do not have a calibration date.</desc>
<credit type="author">
<name>Richard Hughes</name>
<email>richard@hughsie.com</email>
</credit>
<include xmlns="http://www.w3.org/2001/XInclude" href="legal.xml"/>
<mal:credit xmlns:mal="http://projectmallard.org/1.0/" type="translator copyright">
<mal:name>松澤 二郎</mal:name>
<mal:email>jmatsuzawa@gnome.org</mal:email>
<mal:years>2011, 2012, 2013, 2014, 2015</mal:years>
</mal:credit>
<mal:credit xmlns:mal="http://projectmallard.org/1.0/" type="translator copyright">
<mal:name>赤星 柔充</mal:name>
<mal:email>yasumichi@vinelinux.org</mal:email>
<mal:years>2011, 2012</mal:years>
</mal:credit>
<mal:credit xmlns:mal="http://projectmallard.org/1.0/" type="translator copyright">
<mal:name>Kentaro KAZUHAMA</mal:name>
<mal:email>kazken3@gmail.com</mal:email>
<mal:years>2012</mal:years>
</mal:credit>
<mal:credit xmlns:mal="http://projectmallard.org/1.0/" type="translator copyright">
<mal:name>Shushi Kurose</mal:name>
<mal:email>md81bird@hitaki.net</mal:email>
<mal:years>2012</mal:years>
</mal:credit>
<mal:credit xmlns:mal="http://projectmallard.org/1.0/" type="translator copyright">
<mal:name>Noriko Mizumoto</mal:name>
<mal:email>noriko@fedoraproject.org</mal:email>
<mal:years>2013, 2014</mal:years>
</mal:credit>
<mal:credit xmlns:mal="http://projectmallard.org/1.0/" type="translator copyright">
<mal:name>坂本 貴史</mal:name>
<mal:email>o-takashi@sakamocchi.jp</mal:email>
<mal:years>2013, 2014</mal:years>
</mal:credit>
<mal:credit xmlns:mal="http://projectmallard.org/1.0/" type="translator copyright">
<mal:name>日本GNOMEユーザー会</mal:name>
<mal:email>http://www.gnome.gr.jp/</mal:email>
<mal:years>2011, 2012</mal:years>
</mal:credit>
</info>
<title>Why don’t the default monitor profiles have a calibration expiry?</title>
<p>
The default color profile used for each monitor is generated
automatically based on the display
<link href="https://en.wikipedia.org/wiki/Extended_Display_Identification_Data">
EDID</link> which is stored in a memory chip inside the monitor.
The EDID only gives us a snapshot of the available colors the monitor
was capable of displaying when it was manufactured, and does not
contain much other information for color correction.
</p>
<note style="tip">
<p>
Getting a profile from the monitor vendor or creating a profile
yourself would lead to more accurate color correction.
</p>
</note>
</page>
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