black and white halftone image from dots or lines

[gruffer]

Hey group!
how do I convert images into black-and-white halftone images using dots or lines?

for reference using dots:
so the image will build up using dots of varying sizes, see image below, and you then need to be the correct distance from the image to actually see it slearly.

 

 

G

[Old Bruce]

There is a Halftone Live Filter in Photo.