In this section, we will implement the preprocessing functionality required to transform our raw user input into something the model is expecting. We will build up this functionality in a playground project before migrating it across to our project in the next section.
If you haven't done so, pull down the latest code from the accompanying repository https://github.com/PacktPublishing/Machine-Learning-with-Core-ML. Once downloaded, navigate to the directory Chapter8/Start/ and open the playground project ExploringQuickDrawData.playground. Once loaded, you will see the playground for this chapter, as shown:
