Inspired by Pat David’s article [https://patdavid.net/2013/05/noise-removal-in-photos-with-median_6.html ] about “removing people”
I made five pictures with four chess pieces. The pictures I opened as a layers in Gimp 2.10-Ubuntu 18.04.
Filters> Gmic> Layers>Blend median gave me a sixth image where I hoped that only two of the pieces would be visible.
However, an attentive viewer easily sees that the others remain as ghosts. Using ImageMagick with the terminal command:
“convert *.jpg -evaluate-sequence median OUT.jpg” gave the same result.
Of course I did something wrong, but what?