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Halftone images: Spatial resolution and tone reproduction*

1978; Optica Publishing Group; Volume: 68; Issue: 3 Linguagem: Inglês

10.1364/josa.68.000416

2375-1037

Olof Bryngdahl,

Visual perception and processing mechanisms

The halftone technique, which converts a continuous-tone picture into a binary image, is examined. A halftone screen function is used to specify configurations of binary image elements; their area determines the local average image irradiance and information about the spatial image irradiance variations is relfected in their boundaries. A halftone ring geometry is suggested to improve spatial image resolution. Experiments are reported to verify this prediction.