To get started using django-filer simply install it with pip:
$ pip install django-filer
Add "filer" to your project’s INSTALLED_APPS setting and run syncdb (or migrate if you’re using South).
For automatic subject location aware cropping of images replace easy_thumbnails.processors.scale_and_crop with filer.thumbnail_processors.scale_and_crop_with_subject_location in the THUMBNAIL_PROCESSORS setting:
THUMBNAIL_PROCESSORS = (
'easy_thumbnails.processors.colorspace',
'easy_thumbnails.processors.autocrop',
#'easy_thumbnails.processors.scale_and_crop',
'filer.thumbnail_processors.scale_and_crop_with_subject_location',
'easy_thumbnails.processors.filters',
)