halftone

n.

半音，中间色，网板；

Halftone visual cryptography
Halftone visual cryptography
Halftone Visual Cryptography Via Error Diffusion
Halftone to Continuous-Tone Conversion of Error-Diffusion Coded Images
Data hiding watermarking for halftone images.
Designing responsive buckled surfaces by halftone gel lithography.
The penetration of light into paper and its effect on halftone reproduction
Methods and means for embedding machine readable digital data in halftone images
Imaging Characteristics of Multi-Phase-Shifting and Halftone Phase-Shifting Masks : Photolithography :
Hybrid pixel-based data hiding and block-based watermarking for error-diffused halftone images