Image watermarking based on a ratio of DCT coefficient sums using a gradient-based optimizer.

Anna Melman Oleg Evsutin

Published in: Comput. Electr. Eng. (2024)

Keyphrases

image watermarking
digital watermarking
jpeg compression
watermarking algorithm
discrete wavelet transform
copyright protection
random variables
additive noise
geometric distortions
geometric attacks
lossy compression