muzich/vendor/bundles/Gregwar/ImageBundle/Resources/config/services.yml

parameters:
    image.handling.class: Gregwar\ImageBundle\Services\ImageHandling
    image.handler.class: Gregwar\ImageBundle\ImageHandler

services:
    # Image handling factory
    image.handling:
        class: %image.handling.class%
        arguments: [%gregwar_image.cache_dir%, %image.handler.class%, @service_container]

    # Helper Twig
    twig.extension.image:
        class: Gregwar\ImageBundle\Extensions\ImageTwig
        arguments: [@service_container]
        tags:
            - { name: twig.extension }