Is there a way to generate a unique wildcard for each image in img2img/batch?

[WizardMarnok]

Just to stop myself going loopy trying to find this,
is there a way to use the img2img batch tab, and for each of the 100 or so images in my input folder, generate a unique dynamic prompt for that image, process using that prompt, then generate a fresh one for the next image? So that I get a 1-to-1 input to output but each used their own dynamic prompt.

The answers I found in other discussions seemed to indicate that I'd need to generate multiple outputs per input, but perhaps I am misreading them and there is some way to do what I'd like to try there.