Could you show me where? I saw nothing in that article mentioning machine learning or deep learning specifically, and the paper the blog post is based on seems

Could you show me where? I saw nothing in that article mentioning machine learning or deep learning specifically, and the paper the blog post is based on seems to use non-ML based techniques. My assumption is that a deep learning algorithm trained on multiple different styles and variations of watermarked images would be much more robust to the sort of changes Google proposed in this blog post as a way to defeat their existing algorithms.