Visual Cryptography for Digital Watermarking in Still Images.

Gwo-Chin Tai Long-Wen Chang

Published in: PCM (2) (2004)

Keyphrases

digital watermarking
image data
input image
lossy compression
geometric distortions
test images
visual cryptography
human eyes
gaussian noise
image regions
image quality
copyright protection
digital images
wavelet transform
secret image
halftone images
motion estimation
multiscale