Color extended visual cryptography using error diffusion.

In Koo Kang Gonzalo R. Arce Heung-Kyu Lee

Published in: ICASSP (2009)

Keyphrases

error diffusion
visual cryptography
halftone images
gray scale
image quality
inverse halftoning
human visual system
halftoning algorithm
color reproduction
gray level
color images
high quality
frequency domain
data hiding
color palette
human perception
color space
image processing