That text defines AI as such

> ‘AI system’ means a machine-based system that is designed to operate with varying levels of autonomy and that may exhibit adaptiveness after deployment, and that, for explicit or implicit objectives, infers, from the input it receives, how to generate outputs such as predictions, content, recommendations, or decisions that can influence physical or virtual environments

To me, this definition reads as only including "agentic" uses, or automated decision engines. An image generator does not operate with any autonomy. If you interpret the "input" part loosely enough to include it, then you'd likely include old and simple techniques like seam carving [1], which very few would consider "AI" in the contemporary sense

[1] https://en.wikipedia.org/wiki/Seam_carving

"Varying levels of autonomy"

So from image generators up to agents.