For people with visual impairment, offer a screen reader.
Basic: Read textual information, e.g., the title.
Intermediate: Read previously textual information, e.g., the captions or the name of the used template.
Advanced: Read a more detailed description of the image, e.g., what can be seen. For know template, these could be predefined for others user entered. Alternatively, use a third party API like google Lens to get a description for any image.
For people with visual impairment, offer a screen reader.