In the workflow
Why Threshold matters
It suits art that is already two-color. A single threshold usually discards too much tone to represent an ordinary photograph well.
Practical check
How to evaluate it
Test threshold on artwork that is already close to black and white. For an ordinary photograph, compare it with a dither to see how much tonal information the single cutoff removes.
Go deeper
Dithering for Laser Engraving: A Practical Guide
Understand how one-bit dithering represents photo tones, how common algorithms differ, and how to choose without processing the image twice.
Read the complete guide