To display or print a continuous tone image on a bi-level device, the image goes through a halftoning process. For best rendition, the halftoning algorithm should adapt to the output device. We review printer dot models, and the utilization of printer dot model in generating halftone screens, especially frequency-modulated (FM) screens. We also show the possibility of accurate control over tone reproduction using density measurement data without quantization errors.
['Qian Lin']
Screen design for printing