# Create a Node Model in Blue Read

To use a node model, do the following:

1. After adding the tool, configuring the ROI () and setting the character Feature Size (), process the tool (press the Book icon).

2. Select all of the yellow found characters you want to include in the node model (shift-click or shift-drag to draw a box), then right-click over a selected character and select Create Model.

   Note: If you select Create Model with nothing selected, then the model will be created from all of the features found in the image.

3. Define your node model within the Model Editor dialog.

4. For each node within the model, you can refine the characteristics of the node, such as specifying if it should be a numeric digit or an uppercase letter character (the default is that the node can be any type of character).

   To specify characteristics of a node, select the node, which will open the Node settings for the selected instance.

5. Close the dialog by pressing the X button in the top-right corner of the dialog.
6. The model will then be applied to the view that was open when the Model Editor was launched.
7. Process the tool (press the Book icon) to apply the model to the rest of the views.
8. Review the results.