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	<title>stick&#039;s corner &#187; collage</title>
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	<description>All composite phenomena are impermanent. All contaminated things and events are unsatisfactory.</description>
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		<title>openSUSE Users Collage</title>
		<link>http://stick.gk2.sk/blog/2009/08/opensuse-users-collage/</link>
		<comments>http://stick.gk2.sk/blog/2009/08/opensuse-users-collage/#comments</comments>
		<pubDate>Sat, 08 Aug 2009 10:40:09 +0000</pubDate>
		<dc:creator>Pavol Rusnak</dc:creator>
				<category><![CDATA[Blog]]></category>
		<category><![CDATA[avatar]]></category>
		<category><![CDATA[collage]]></category>
		<category><![CDATA[contrib]]></category>
		<category><![CDATA[facebook]]></category>
		<category><![CDATA[identi.ca]]></category>
		<category><![CDATA[mosaic]]></category>
		<category><![CDATA[opensuse]]></category>
		<category><![CDATA[twitter]]></category>

		<guid isPermaLink="false">http://stick.gk2.sk/?p=581</guid>
		<description><![CDATA[Today I stumbled upon blogpost by Andreas Gohr called identi.ca Mosaic. He took 30.000 avatars of identi.ca users and created a mosaic from them using the metapixel software. What a great idea! How about doing something similar for openSUSE folks? We hadn&#8217;t metapixel packaged in openSUSE, so I created the package in Contrib repository. Then [...]]]></description>
			<content:encoded><![CDATA[<p style="text-align: justify;">Today I stumbled upon blogpost by <a href="http://www.splitbrain.org/personal">Andreas Gohr</a> called <a href="http://www.splitbrain.org/blog/2009-07/31-identi.ca_mosaic">identi.ca Mosaic</a>. He took 30.000 avatars of <a href="http://identi.ca/">identi.ca</a> users and created a mosaic from them using the <a href="http://www.complang.tuwien.ac.at/schani/metapixel/">metapixel</a> software. What a great idea! How about doing something similar for openSUSE folks?</p>
<p style="text-align: justify;">We hadn&#8217;t metapixel packaged in openSUSE, so I created the package in <a href="http://en.opensuse.org/Contrib">Contrib</a> repository. Then I started collecting the avatars of openSUSE users. I searched both <a href="http://twitter.com/">twitter</a> and <a href="http://identi.ca/">identi.ca</a> for messages containing &#8220;opensuse&#8221; and added the authors&#8217; avatars to the pool. Identi.ca also has groups, so all members of <a href="http://identi.ca/group/opensuse/">openSUSE group</a> ended there as well. <a href="http://www.facebook.com/">Facebook</a> contains both <a href="http://www.facebook.com/group.php?gid=2256834487">openSUSE group</a> and <a href="http://www.facebook.com/pages/OpenSUSE/16720390225">openSUSE page</a> so I grabbed all avatars I found there too. At the end I was able to collect 3760 avatars of people using or interested in openSUSE!</p>
<p style="text-align: justify;">I started experimenting with metapixel, but because I still had 10 times less images available than Andreas, I was not able to produce very good results. Fortunately, I discovered <code>-c</code> option, which tries to create a collage instead of a mosaic, which looks much better. (Mosaic has photos arranged in a rectangular grid, while collage does not.) After some fiddling I was able to create the following pictures. I hope you like them! <img src='http://stick.gk2.sk/blog/wp-includes/images/smilies/icon_smile.gif' alt=':-)' class='wp-smiley' />  (use right click and &#8220;Save as&#8221; when downloading hi-res images)</p>
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<td><a href="http://stick.gk2.sk/blog/wp-content/uploads/2009/08/opensuse-users-collage-1024.jpg"  rel="lightbox[581]"><img class="size-medium" title="collage" src="http://stick.gk2.sk/blog/wp-content/uploads/2009/08/opensuse-users-collage-256.jpg" alt="collage" width="256" height="160" /></a></td>
<td><a href="http://stick.gk2.sk/blog/wp-content/uploads/2009/08/opensuse-users-collage-2-1024.jpg"  rel="lightbox[581]"><img class="size-medium" title="collage" src="http://stick.gk2.sk/blog/wp-content/uploads/2009/08/opensuse-users-collage-2-256.jpg" alt="collage" width="256" height="160" /></a></td>
</tr>
<tr>
<td>hi-res: <a href="http://fc07.deviantart.com/fs49/f/2009/219/a/1/openSUSE_Users_Collage_by_stickac.jpg"  rel="lightbox[581]">6000&#215;3754</a></td>
<td>hi-res: <a href="http://fc01.deviantart.com/fs46/f/2009/220/3/2/openSUSE_Users_Collage_2_by_stickac.jpg"  rel="lightbox[581]">6000&#215;3750</a></td>
</tr>
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<p style="text-align: justify;">If you&#8217;d like to play with the parameters I give you the <a href="http://stick.gk2.sk/blog/wp-content/uploads/2009/08/opensuse-users.tar.bz2">tarballed avatars</a> (6 MiB), <a href="http://stick.gk2.sk/blog/wp-content/uploads/2009/08/collage-sources.tar.bz2">original images</a> (1 MiB) and the command lines I used to produce the image:</p>
<pre>tar xfj opensuse-users.tar.bz2
tar xfj collage-sources.tar.bz2
mkdir ./opensuse-users-ready
metapixel-prepare --width=48 --height=48 ./opensuse-users ./opensuse-users-ready
metapixel -c -l ./opensuse-users-ready -w 48 -h 48 -m wavelet -d 500 -e global --metapixel opensuse-logo-6000.png opensuse-users-collage.png
metapixel -c -l ./opensuse-users-ready -w 48 -h 48 -m wavelet -d 300 -e global --metapixel chameleon.jpg opensuse-users-collage-2.png</pre>
<p>Enjoy! (Don&#8217;t forget to install <code>metapixel</code> package from Contrib.)</p>
<p><strong>Update:</strong> Lubomir Rintel tried to do a similar collage for Fedora users, check <a href="http://v3.sk/~lkundrak/blog/entries/metapixel.html">his version</a>.</p>
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