> My question is, how do I apply this selected region to the original image?
> That is, having filtered the original image so I have only the regions I
> would like to work with, and then having selected all of that region from
> the filtered image, how do I then apply that selection region to the
> original image, so I can then work on only the selected region?
I think you want this-
- Duplicate layer
- Edge detect on duplicate
- Make selection
- Delete duplicate layer
You will have the selection still active on the original image.
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