I've got a comics drawing, only the black stroke, which is drawn by hand so the thickness is variating, and I need to draw a line with a thickness of 1 px in about the middle of this line. Is there a way to do it automatically?
The image I provided is an example of what I'd like to achieve on the whole picture, here I've drawn with the pen on a small section of the picture.
I tried with select/modify/contract and select/modify/border but there is no way to set an option which would leave at least 1 px in the middle. So when the two sides touch, they join and the middle of the stroke is no longer selected (using border) or simply disappears (using contract).
Can someone help?