Beginner’s Guide to Keras Preprocessing Layers

Keras preprocessing layers make it easier to build end-to-end machine learning pipelines that handle raw text, numbers, categories, and images directly inside your model. This article walks through the available preprocessing layers, the adapt() method, and different strategies for placing preprocessing either inside the model or in the tf.data pipeline. You’ll also learn how to combine preprocessing with multi-worker training and export portable inference models, ensuring consistency, scalability, and better performance across environments.