1. The purpose of the image Most alt-text descriptions are based on standards set by the Worldwide Web Consortium (W3C), an international web accessibility standards group.

The system can turn simple text descriptions into photorealistic images. While that may sound like a simple task, it's deceptively difficult for a machine learning algorithm to pick up on the cues ...

Image descriptions, were first introduced to Twitter in 2016 and provide better context (in up to 1,000 characters) to more people, including those who are blind or classed as having low-vision.