Combined DWT-DCT based digital image watermarking technique for copyright protection

• Published in: 2012 7th International Conference on Electrical and Computer Engineering pp. 458 - 461
• Main Authors: Deb, K., Al-Seraj, M. S., Hoque, M. M., Sarkar, M. I. H.
• Format: Conference Proceeding
• Language: English
• Published: IEEE 01.12.2012
• Subjects: Digital watermarking; Discrete Cosine Transform (DCT); Discrete cosine transforms; Discrete Wavelet Transform (DWT); Discrete wavelet transforms; Image coding; Random sequences; Transform coding; Watermarking

A combined DWT and DCT based watermarking technique with low frequency watermarking with weighted correction is proposed. DWT has excellent spatial localization, frequency spread and multi-resolution characteristics, which are similar to the theoretical models of the human visual system (HVS). DCT b...