Creating an "opposite" image

[Krikor]

(04-04-2022, 03:18 PM)Ottia Tuota Wrote: I think nobody has suggested using a mask. But perhaps this equivalent to some other method, I don't know.

Actually my suggestion in post #28 was just using layer mask.

Perhaps I failed to convey the steps in an easily understandable way - English is not my mother tongue.

But below I go over exactly the same steps as in post #28, just with other words.

1- On top of original picture, make a black layer.
2- To the original picture, Apha to Selection.
3- To the black layer, Add Layer Mask (Selection-Invert Mask).
4- Select the original picture;

•  Fuzzy select the outside regions,
  
•  Select - Grow 1 to 3 pixels,
  
•  Close the visibility of this layer.
  

5- Select the black layer, Delete, Apply Layer Mask.