this post was submitted on 05 Jun 2024
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Technology

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Mozilla Firefox new alt-text generator powered by "fully private on-device AI model" (hacks.mozilla.org)
submitted 5 months ago* (last edited 5 months ago) by frogman@beehaw.org to c/technology@beehaw.org
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New accessibility feature coming to Firefox, an "AI powered" alt-text generator.

"Starting in Firefox 130, we will automatically generate an alt text and let the user validate it. So every time an image is added, we get an array of pixels we pass to the ML engine and a few seconds after, we get a string corresponding to a description of this image (see the code).

...

Our alt text generator is far from perfect, but we want to take an iterative approach and improve it in the open.

...

We are currently working on improving the image-to-text datasets and model with what we’ve described in this blog post..."

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[–] Kissaki@beehaw.org 1 points 5 months ago (1 children)

Interesting. It also made me look at the MDN docs again. img alt is consistent to that. I wasn't aware of the empty for omittable images.

I also looked at figure again, and in my interpretation it does declare that figcaption is to be used.

figure represents self-contained content. figcaption provides the accessible name for the parent. The accessible name is is the text associated with an HTML element that provides users of assistive technology with a label for the element.

The resolution order being aria-labelledby, aria-label, input[type=button][value], input[type=image]|img|area[alt], …

So figcaption takes priority over img alt.

[–] IllNess@infosec.pub 2 points 5 months ago

Thanks for the info. The Accessible name calculation page is really interesting.