Reversible multi-watermarking for color images with grayscale invariance.

Ying Sun Xiaochen Yuan Xingrun Wang Jianqing Li

Published in: Multim. Tools Appl. (2023)

Keyphrases

gray scale
color images
bi level
grayscale images
gray scale images
binary images
mathematical morphology
color space
color information
image processing
morphological operations
gray level
digital images
reversible watermarking
watermarking scheme
contrast enhancement
structuring elements
inverse halftoning