Input data and preprocessing
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:
The playground includes a few samples of the raw Quick, Draw! dataset, a single simplified extract, as well as the complied model and supporting classes we created in the previous chapter to represent a sketch (Stroke.swift, Sketch.swift) and render it (SketchView.swift). Our goal for this section will be to better understand the data and the preprocessing...
