Pro How machine learning and image recognition could revolutionise search News By Mary Branscombe published December 25, 2014 ...

Find out how to get started with ML, by creating an application that can recognize, and extract text from any image, using Google’s ML Kit SDK and Text Recognition API.

These machine learning systems are then fed pictures from ImageNet and its ilk, proprietary images (aka Google Photos) or other sources (like anonymized, indexed clinical records).