In this section, we will implement the preprocessing functionality required to transform images 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 already, pull down the latest code from the accompanying repository: https://github.com/packtpublishing/machine-learning-with-core-ml. Once downloaded, navigate to the directory Chapter4/Start/ and open the Playground project ExploringExpressionRecognition.playground. Once loaded, you will see the playground for this chapter, as shown in the following screenshot:
Before starting, to avoid looking at images of me, please replace the ...
