A novel method to embed watermark in different halftone images: data hiding by conjugate error diffusion (DHCED).

Ming Sun Fu Oscar C. Au

Published in: ICASSP (3) (2003)

Keyphrases

halftone images
data hiding
error diffusion
high capacity
inverse halftoning
gray scale
watermarking technique
image quality
spread spectrum
spatial domain
information hiding
human visual system
copyright protection
visual information
error correction
halftoning algorithm