diff --git a/lib/philomena/images.ex b/lib/philomena/images.ex
index e4cc1f84..9182adad 100644
--- a/lib/philomena/images.ex
+++ b/lib/philomena/images.ex
@@ -103,4 +103,292 @@ defmodule Philomena.Images do
   def change_image(%Image{} = image) do
     Image.changeset(image, %{})
   end
+
+  alias Philomena.Images.Features
+
+  @doc """
+  Returns the list of image_features.
+
+  ## Examples
+
+      iex> list_image_features()
+      [%Features{}, ...]
+
+  """
+  def list_image_features do
+    Repo.all(Features)
+  end
+
+  @doc """
+  Gets a single features.
+
+  Raises `Ecto.NoResultsError` if the Features does not exist.
+
+  ## Examples
+
+      iex> get_features!(123)
+      %Features{}
+
+      iex> get_features!(456)
+      ** (Ecto.NoResultsError)
+
+  """
+  def get_features!(id), do: Repo.get!(Features, id)
+
+  @doc """
+  Creates a features.
+
+  ## Examples
+
+      iex> create_features(%{field: value})
+      {:ok, %Features{}}
+
+      iex> create_features(%{field: bad_value})
+      {:error, %Ecto.Changeset{}}
+
+  """
+  def create_features(attrs \\ %{}) do
+    %Features{}
+    |> Features.changeset(attrs)
+    |> Repo.insert()
+  end
+
+  @doc """
+  Updates a features.
+
+  ## Examples
+
+      iex> update_features(features, %{field: new_value})
+      {:ok, %Features{}}
+
+      iex> update_features(features, %{field: bad_value})
+      {:error, %Ecto.Changeset{}}
+
+  """
+  def update_features(%Features{} = features, attrs) do
+    features
+    |> Features.changeset(attrs)
+    |> Repo.update()
+  end
+
+  @doc """
+  Deletes a Features.
+
+  ## Examples
+
+      iex> delete_features(features)
+      {:ok, %Features{}}
+
+      iex> delete_features(features)
+      {:error, %Ecto.Changeset{}}
+
+  """
+  def delete_features(%Features{} = features) do
+    Repo.delete(features)
+  end
+
+  @doc """
+  Returns an `%Ecto.Changeset{}` for tracking features changes.
+
+  ## Examples
+
+      iex> change_features(features)
+      %Ecto.Changeset{source: %Features{}}
+
+  """
+  def change_features(%Features{} = features) do
+    Features.changeset(features, %{})
+  end
+
+  alias Philomena.Images.Intensities
+
+  @doc """
+  Returns the list of image_intensities.
+
+  ## Examples
+
+      iex> list_image_intensities()
+      [%Intensities{}, ...]
+
+  """
+  def list_image_intensities do
+    Repo.all(Intensities)
+  end
+
+  @doc """
+  Gets a single intensities.
+
+  Raises `Ecto.NoResultsError` if the Intensities does not exist.
+
+  ## Examples
+
+      iex> get_intensities!(123)
+      %Intensities{}
+
+      iex> get_intensities!(456)
+      ** (Ecto.NoResultsError)
+
+  """
+  def get_intensities!(id), do: Repo.get!(Intensities, id)
+
+  @doc """
+  Creates a intensities.
+
+  ## Examples
+
+      iex> create_intensities(%{field: value})
+      {:ok, %Intensities{}}
+
+      iex> create_intensities(%{field: bad_value})
+      {:error, %Ecto.Changeset{}}
+
+  """
+  def create_intensities(attrs \\ %{}) do
+    %Intensities{}
+    |> Intensities.changeset(attrs)
+    |> Repo.insert()
+  end
+
+  @doc """
+  Updates a intensities.
+
+  ## Examples
+
+      iex> update_intensities(intensities, %{field: new_value})
+      {:ok, %Intensities{}}
+
+      iex> update_intensities(intensities, %{field: bad_value})
+      {:error, %Ecto.Changeset{}}
+
+  """
+  def update_intensities(%Intensities{} = intensities, attrs) do
+    intensities
+    |> Intensities.changeset(attrs)
+    |> Repo.update()
+  end
+
+  @doc """
+  Deletes a Intensities.
+
+  ## Examples
+
+      iex> delete_intensities(intensities)
+      {:ok, %Intensities{}}
+
+      iex> delete_intensities(intensities)
+      {:error, %Ecto.Changeset{}}
+
+  """
+  def delete_intensities(%Intensities{} = intensities) do
+    Repo.delete(intensities)
+  end
+
+  @doc """
+  Returns an `%Ecto.Changeset{}` for tracking intensities changes.
+
+  ## Examples
+
+      iex> change_intensities(intensities)
+      %Ecto.Changeset{source: %Intensities{}}
+
+  """
+  def change_intensities(%Intensities{} = intensities) do
+    Intensities.changeset(intensities, %{})
+  end
+
+  alias Philomena.Images.Subscription
+
+  @doc """
+  Returns the list of image_subscriptions.
+
+  ## Examples
+
+      iex> list_image_subscriptions()
+      [%Subscription{}, ...]
+
+  """
+  def list_image_subscriptions do
+    Repo.all(Subscription)
+  end
+
+  @doc """
+  Gets a single subscription.
+
+  Raises `Ecto.NoResultsError` if the Subscription does not exist.
+
+  ## Examples
+
+      iex> get_subscription!(123)
+      %Subscription{}
+
+      iex> get_subscription!(456)
+      ** (Ecto.NoResultsError)
+
+  """
+  def get_subscription!(id), do: Repo.get!(Subscription, id)
+
+  @doc """
+  Creates a subscription.
+
+  ## Examples
+
+      iex> create_subscription(%{field: value})
+      {:ok, %Subscription{}}
+
+      iex> create_subscription(%{field: bad_value})
+      {:error, %Ecto.Changeset{}}
+
+  """
+  def create_subscription(attrs \\ %{}) do
+    %Subscription{}
+    |> Subscription.changeset(attrs)
+    |> Repo.insert()
+  end
+
+  @doc """
+  Updates a subscription.
+
+  ## Examples
+
+      iex> update_subscription(subscription, %{field: new_value})
+      {:ok, %Subscription{}}
+
+      iex> update_subscription(subscription, %{field: bad_value})
+      {:error, %Ecto.Changeset{}}
+
+  """
+  def update_subscription(%Subscription{} = subscription, attrs) do
+    subscription
+    |> Subscription.changeset(attrs)
+    |> Repo.update()
+  end
+
+  @doc """
+  Deletes a Subscription.
+
+  ## Examples
+
+      iex> delete_subscription(subscription)
+      {:ok, %Subscription{}}
+
+      iex> delete_subscription(subscription)
+      {:error, %Ecto.Changeset{}}
+
+  """
+  def delete_subscription(%Subscription{} = subscription) do
+    Repo.delete(subscription)
+  end
+
+  @doc """
+  Returns an `%Ecto.Changeset{}` for tracking subscription changes.
+
+  ## Examples
+
+      iex> change_subscription(subscription)
+      %Ecto.Changeset{source: %Subscription{}}
+
+  """
+  def change_subscription(%Subscription{} = subscription) do
+    Subscription.changeset(subscription, %{})
+  end
 end
diff --git a/lib/philomena/images/features.ex b/lib/philomena/images/features.ex
new file mode 100644
index 00000000..b07ddf10
--- /dev/null
+++ b/lib/philomena/images/features.ex
@@ -0,0 +1,20 @@
+defmodule Philomena.Images.Features do
+  use Ecto.Schema
+  import Ecto.Changeset
+
+  @primary_key false
+
+  schema "image_features" do
+    belongs_to :image, Philomena.Images.Image
+    belongs_to :user, Philomena.Users.User
+
+    timestamps(inserted_at: :created_at)
+  end
+
+  @doc false
+  def changeset(features, attrs) do
+    features
+    |> cast(attrs, [])
+    |> validate_required([])
+  end
+end
diff --git a/lib/philomena/images/intensities.ex b/lib/philomena/images/intensities.ex
new file mode 100644
index 00000000..b662d552
--- /dev/null
+++ b/lib/philomena/images/intensities.ex
@@ -0,0 +1,22 @@
+defmodule Philomena.Images.Intensities do
+  use Ecto.Schema
+  import Ecto.Changeset
+
+  @primary_key false
+
+  schema "image_intensities" do
+    belongs_to :image, Philomena.Images.Image, primary_key: true
+    
+    field :nw, :float
+    field :ne, :float
+    field :sw, :float
+    field :se, :float
+  end
+
+  @doc false
+  def changeset(intensities, attrs) do
+    intensities
+    |> cast(attrs, [])
+    |> validate_required([])
+  end
+end
diff --git a/lib/philomena/images/subscription.ex b/lib/philomena/images/subscription.ex
new file mode 100644
index 00000000..966b6f9d
--- /dev/null
+++ b/lib/philomena/images/subscription.ex
@@ -0,0 +1,18 @@
+defmodule Philomena.Images.Subscription do
+  use Ecto.Schema
+  import Ecto.Changeset
+
+  @primary_key false
+
+  schema "image_subscriptions" do
+    belongs_to :image, Philomena.Images.Image, primary_key: true
+    belongs_to :user, Philomena.Users.User, primary_key: true
+  end
+
+  @doc false
+  def changeset(subscription, attrs) do
+    subscription
+    |> cast(attrs, [])
+    |> validate_required([])
+  end
+end
diff --git a/test/philomena/images_test.exs b/test/philomena/images_test.exs
index a9c269ce..86a3b197 100644
--- a/test/philomena/images_test.exs
+++ b/test/philomena/images_test.exs
@@ -59,4 +59,175 @@ defmodule Philomena.ImagesTest do
       assert %Ecto.Changeset{} = Images.change_image(image)
     end
   end
+
+  describe "image_features" do
+    alias Philomena.Images.Features
+
+    @valid_attrs %{}
+    @update_attrs %{}
+    @invalid_attrs %{}
+
+    def features_fixture(attrs \\ %{}) do
+      {:ok, features} =
+        attrs
+        |> Enum.into(@valid_attrs)
+        |> Images.create_features()
+
+      features
+    end
+
+    test "list_image_features/0 returns all image_features" do
+      features = features_fixture()
+      assert Images.list_image_features() == [features]
+    end
+
+    test "get_features!/1 returns the features with given id" do
+      features = features_fixture()
+      assert Images.get_features!(features.id) == features
+    end
+
+    test "create_features/1 with valid data creates a features" do
+      assert {:ok, %Features{} = features} = Images.create_features(@valid_attrs)
+    end
+
+    test "create_features/1 with invalid data returns error changeset" do
+      assert {:error, %Ecto.Changeset{}} = Images.create_features(@invalid_attrs)
+    end
+
+    test "update_features/2 with valid data updates the features" do
+      features = features_fixture()
+      assert {:ok, %Features{} = features} = Images.update_features(features, @update_attrs)
+    end
+
+    test "update_features/2 with invalid data returns error changeset" do
+      features = features_fixture()
+      assert {:error, %Ecto.Changeset{}} = Images.update_features(features, @invalid_attrs)
+      assert features == Images.get_features!(features.id)
+    end
+
+    test "delete_features/1 deletes the features" do
+      features = features_fixture()
+      assert {:ok, %Features{}} = Images.delete_features(features)
+      assert_raise Ecto.NoResultsError, fn -> Images.get_features!(features.id) end
+    end
+
+    test "change_features/1 returns a features changeset" do
+      features = features_fixture()
+      assert %Ecto.Changeset{} = Images.change_features(features)
+    end
+  end
+
+  describe "image_intensities" do
+    alias Philomena.Images.Intensities
+
+    @valid_attrs %{}
+    @update_attrs %{}
+    @invalid_attrs %{}
+
+    def intensities_fixture(attrs \\ %{}) do
+      {:ok, intensities} =
+        attrs
+        |> Enum.into(@valid_attrs)
+        |> Images.create_intensities()
+
+      intensities
+    end
+
+    test "list_image_intensities/0 returns all image_intensities" do
+      intensities = intensities_fixture()
+      assert Images.list_image_intensities() == [intensities]
+    end
+
+    test "get_intensities!/1 returns the intensities with given id" do
+      intensities = intensities_fixture()
+      assert Images.get_intensities!(intensities.id) == intensities
+    end
+
+    test "create_intensities/1 with valid data creates a intensities" do
+      assert {:ok, %Intensities{} = intensities} = Images.create_intensities(@valid_attrs)
+    end
+
+    test "create_intensities/1 with invalid data returns error changeset" do
+      assert {:error, %Ecto.Changeset{}} = Images.create_intensities(@invalid_attrs)
+    end
+
+    test "update_intensities/2 with valid data updates the intensities" do
+      intensities = intensities_fixture()
+      assert {:ok, %Intensities{} = intensities} = Images.update_intensities(intensities, @update_attrs)
+    end
+
+    test "update_intensities/2 with invalid data returns error changeset" do
+      intensities = intensities_fixture()
+      assert {:error, %Ecto.Changeset{}} = Images.update_intensities(intensities, @invalid_attrs)
+      assert intensities == Images.get_intensities!(intensities.id)
+    end
+
+    test "delete_intensities/1 deletes the intensities" do
+      intensities = intensities_fixture()
+      assert {:ok, %Intensities{}} = Images.delete_intensities(intensities)
+      assert_raise Ecto.NoResultsError, fn -> Images.get_intensities!(intensities.id) end
+    end
+
+    test "change_intensities/1 returns a intensities changeset" do
+      intensities = intensities_fixture()
+      assert %Ecto.Changeset{} = Images.change_intensities(intensities)
+    end
+  end
+
+  describe "image_subscriptions" do
+    alias Philomena.Images.Subscription
+
+    @valid_attrs %{}
+    @update_attrs %{}
+    @invalid_attrs %{}
+
+    def subscription_fixture(attrs \\ %{}) do
+      {:ok, subscription} =
+        attrs
+        |> Enum.into(@valid_attrs)
+        |> Images.create_subscription()
+
+      subscription
+    end
+
+    test "list_image_subscriptions/0 returns all image_subscriptions" do
+      subscription = subscription_fixture()
+      assert Images.list_image_subscriptions() == [subscription]
+    end
+
+    test "get_subscription!/1 returns the subscription with given id" do
+      subscription = subscription_fixture()
+      assert Images.get_subscription!(subscription.id) == subscription
+    end
+
+    test "create_subscription/1 with valid data creates a subscription" do
+      assert {:ok, %Subscription{} = subscription} = Images.create_subscription(@valid_attrs)
+    end
+
+    test "create_subscription/1 with invalid data returns error changeset" do
+      assert {:error, %Ecto.Changeset{}} = Images.create_subscription(@invalid_attrs)
+    end
+
+    test "update_subscription/2 with valid data updates the subscription" do
+      subscription = subscription_fixture()
+      assert {:ok, %Subscription{} = subscription} = Images.update_subscription(subscription, @update_attrs)
+    end
+
+    test "update_subscription/2 with invalid data returns error changeset" do
+      subscription = subscription_fixture()
+      assert {:error, %Ecto.Changeset{}} = Images.update_subscription(subscription, @invalid_attrs)
+      assert subscription == Images.get_subscription!(subscription.id)
+    end
+
+    test "delete_subscription/1 deletes the subscription" do
+      subscription = subscription_fixture()
+      assert {:ok, %Subscription{}} = Images.delete_subscription(subscription)
+      assert_raise Ecto.NoResultsError, fn -> Images.get_subscription!(subscription.id) end
+    end
+
+    test "change_subscription/1 returns a subscription changeset" do
+      subscription = subscription_fixture()
+      assert %Ecto.Changeset{} = Images.change_subscription(subscription)
+    end
+  end
 end