Corel PHOTO-PAINT provides a LineArt option that you can use to easily convert a color photo into black-and-white line art. You simply open a photo, click Image > Convert to Black and White (1-bit), and then choose LineArt from the Conversion Method drop-menu. You can use the Threshold slider to adjust the effect, and then click OK when you are satisfied with the result.

Tip provided by Stefan Lindblad, CorelDRAW Master, Illustrator, Graphic Designer & Artist