diff --git a/wagtail/wagtailimages/models.py b/wagtail/wagtailimages/models.py
index 4e89a3ad66..185ad534ee 100644
--- a/wagtail/wagtailimages/models.py
+++ b/wagtail/wagtailimages/models.py
@@ -73,6 +73,9 @@ class AbstractImage(models.Model, TagSearchable):
     def __str__(self):
         return self.title
 
+    def get_rect(self):
+        return Rect(0, 0, self.width, self.height)
+
     def get_focal_point(self):
         if self.focal_point_x is not None and \
            self.focal_point_y is not None and \
diff --git a/wagtail/wagtailimages/tests/test_models.py b/wagtail/wagtailimages/tests/test_models.py
index 382a18ecec..5c14958d4c 100644
--- a/wagtail/wagtailimages/tests/test_models.py
+++ b/wagtail/wagtailimages/tests/test_models.py
@@ -13,6 +13,7 @@ from wagtail.tests.models import EventPage, EventPageCarouselItem
 from wagtail.wagtailimages.models import Rendition
 from wagtail.wagtailimages.backends import get_image_backend
 from wagtail.wagtailimages.backends.pillow import PillowBackend
+from wagtail.wagtailimages.utils.rect import Rect
 
 from .utils import Image, get_test_image_file
 
@@ -31,6 +32,9 @@ class TestImage(TestCase):
     def test_is_landscape(self):
         self.assertTrue(self.image.is_landscape())
 
+    def test_get_rect(self):
+        self.assertTrue(self.image.get_rect(), Rect(0, 0, 640, 480))
+
 
 class TestImagePermissions(TestCase):
     def setUp(self):