If you use the_form() to add a form on the front end, http://www.advancedcustomfields.com/resources/acf_form/. You can specify what field groups and specify what fields to show. Using the hook acf/pre_save_post you can then create new posts if you need to http://www.advancedcustomfields.com/resources/acf-pre_save_post/. Users will be able to upload images using acf_form().
