Twitter Image Descriptions

In my previous post, I talked about how Twitter could add an OCR capability to their system if they wanted to.

They haven’t, but they do have something related: the ability to add your own “image description” to the images in your tweets:

You can add a full, separate image description for each image in a tweet, not just the first one.

Per that document, you have 420 characters to use for your image description.

You can’t add it for animated GIFs or videos, and you won’t be able to access the image description through the standard UI — only through things like screen readers.

And it doesn’t look like this functionality is available to third-party Twitter clients.

It’s not as good as the kind of OCR system I imagined. If there is text in your image, you’ll have to type it in yourself.

And if you use an image that has over about four hundred characters of text in it, you won’t be able to include all of it. That is a decent amount of text, however.