<story><title>Multicolor image search</title><url>http://labs.tineye.com/multicolr</url></story><parent_chain></parent_chain><comment><author>dhotson</author><text>I helped build a similar tool at 99designs. I blogged a bit about how we built it here:
&lt;a href=&quot;http://99designs.com/tech-blog/blog/2012/08/02/color-explorer/&quot; rel=&quot;nofollow&quot;&gt;http://99designs.com/tech-blog/blog/2012/08/02/color-explore...&lt;/a&gt;&lt;p&gt;It uses R-trees to index colors in the Lab color space to do fast perceptual nearest neighbour color search.&lt;p&gt;We open sourced the code behind it too, so you can implement search by color type features on your own set of images:&lt;p&gt;&lt;a href=&quot;https://github.com/99designs/colorific&quot; rel=&quot;nofollow&quot;&gt;https://github.com/99designs/colorific&lt;/a&gt; - for extracting colors from images&lt;p&gt;&lt;a href=&quot;https://github.com/dhotson/colordb&quot; rel=&quot;nofollow&quot;&gt;https://github.com/dhotson/colordb&lt;/a&gt; - for doing fast perceptual nearest neighbour color search</text></comment>
<story><title>Multicolor image search</title><url>http://labs.tineye.com/multicolr</url></story><parent_chain></parent_chain><comment><author>dsr12</author><text>This message is displayed when you try to search for more than 5 colours :)&lt;p&gt;&quot;In accordance with common sense, decency, propriety, sobriety, and the Revised Search Limitations Act of 1742, we respectfully inform you, our dear user, that the number of colours searched upon must not exceed 5. Thank you for your cooperation.&quot;</text></comment>