It did say he was a photographer, not an astronomer.
Surely an astronomer would have software for this that would produce a more accurate picture.
Surely an astronomer would have software for this that would produce a more accurate picture.
It then usually gives you an image of both the combined success, and an image of just those pixels that were rejected. So, this.
So, they would erase the stars, but only to create a satellite mask, generally speaking.