# models.py
from django.db import models
from imagefocus import ImageFocusField

class ImageModel(models.Model):
    source = models.ImageField(upload_to="/images")
    focal_point = ImageFocusField(image_field="source")

# admin.py
from django.contrib import admin
from imagefocus import ImageFocusAdminMixin
from .models import ImageModel

@admin.register(ImageModel)
class ImageAdmin(ImageFocusAdminMixin, admin.ModelAdmin):
    pass

#settings.py
INSTALLED_APPS = [
    # ...
    'imagefocus',
]