Abstract

Several classes of electronic halftone techniques are described that can be applied to binarize graytone images. The difference between the quantized and the corresponding analog image constitutes the quantization noise. The characteristics of the quantization noise can be influenced by the parameters that determine the halftone process. Iterative methods show high flexibility. In particular, they permit control of the image spectrum during the quantization process.

© 1993 Optical Society of America

Adaptation of spectral constraints to electronically halftoned pictures

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