It detects whether uploaded images have faces in it thus when generating cropped thumbnails based on such image, they will be centered in the largest face found...
Generated thumbnails for image before installing the plugin..
Generated thumbnails for image analyzed by Face Detection plugin...
This plugin modifies those cropped thumbnails generated from uploaded images in such way whether there is inside that image, it will be in the center of the generated thumbnail.
This plugin uses WordPress PHP port of Java of Viola Jones object algorithm.
Basically, you need to know that it's not 100% effective.
By default, the plugin is disabled for all the image uploads.
It's done that way because the process to detect faces is very heavy and maybe you do not want to wait that each image you upload to the server be processed for this plugin..
You can Face Detection for all uploads by going to Settings -> Media.
Browse the code, check out SVN repository, or subscribe to the development log by RSS...
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