Calibration targets are needed to do scanner and camera profiling.
Richard Hughes
richard@hughsie.com
松澤 二郎
jmatsuzawa@gnome.org 2011, 2012, 2013, 2014, 2015
赤星 柔充
yasumichi@vinelinux.org 2011, 2012
Kentaro KAZUHAMA
kazken3@gmail.com 2012
Shushi Kurose
md81bird@hitaki.net 2012
Noriko Mizumoto
noriko@fedoraproject.org 2013, 2014
坂本 貴史
o-takashi@sakamocchi.jp 2013, 2014
日本GNOMEユーザー会
http://www.gnome.gr.jp/ 2011, 2012

# Which target types are supported?

The following types of targets are supported:

CMP DigitalTarget

ColorChecker 24

ColorChecker DC

ColorChecker SG

i1 RGB Scan 14

LaserSoft DC Pro

QPcard 201

IT8.7/2

You can purchase targets from well-known vendors like KODAK, X-Rite and LaserSoft in various online shops.

Alternatively you can buy targets from Wolf Faust at a very fair price.