I used to use threshold on my scanned inks. I scan in 400dpi greyscale. But lately I prefer the smoother effect when using levels even though I don’t get a 100% black. I don’t intend to print this but as far as I have understood 400dpi wouldn’t be high enough to get good line art for print.
I tested on Vetres just to see the difference.
First the adjusted levels:
And then the threshold (default 128):
The b/w image is of course easier to color. I would select all white areas and then use the bucket to fill on a separate layer but I still would have to be careful of small white islands. Using levels I have to select each area separately going from background to foreground.
