I was looking into the new MLResolution function. I made a circle and filled with a solid color and a stroke. Zooming in I could see the individual pixels and wonder what MLR* would do to it, so I did MLR* on the whole circle. The results were very unusual and Thought you would be interested in it.
I believe that MLR* doesn't like strokes. I know this may not be legitimate use of MLR* but I found it interesting.
Well spotted! There are two issues here which are having an effect on each other — the current ML Super Resolution algorithm can introduce very subtle noise in the alpha channel and the Stroke layer style has a default (non-customizable) opacity threshold of 0. So any pixel even slightly above 0 will not get stroked. Incidentally, there was a topic on the forum about this not too long ago. Both issues are known and will be addressed in future updates.