Gary, I think you have totally missed the point.

I just used a random image and text to illustrate how it works. I was not claiming any solution to copyrighting as it is not possible because if I can see it, I can copy it.

I presented two examples. Both were showing the outcome. The particular benefit is for unobtrusive labelling and for Accessibility.
Text with no Fill and a thin line might work until you hit a black area; this method is always contrasted.

Acorn