I know what it is, I just want to know how to get the Satin Effect to work and the Stroke effect. Can they work on images, text, or both? I'd like an example please.

Here's what I get when using Stroke:


A frame around the image

Satin seems to works for me as supposed, I'm using the latest version that was fixed by MareroQ.
I would use border with image, and stroke with objects/text.
But I'm not using this stroke, it's not looking so good with certain settings as you can see.
The one that ofnuts created while ago is the best of all by far in my opinion, ofn-outline-layer.py
I recommend just to play with the filters some time and you'll find out how they work...if they work.

I have the one fixed by MareroQ but I'll download it again just to see if it gives me the same thing.