Optimized gray-scale image watermarking using DWT–SVD and Firefly Algorithm

作者：

Highlights：

• In this paper, image watermarking is implemented using DWT–SVD domain.

• The Firefly Algorithm is used to implement image watermarking for the first time.

• We demonstrate successful use of multiple scaling factors to achieve best results.

• Robustness study indicates embedding algorithm is robust against image operations.

• Watermark extraction from signed and attacked images is found to be well optimized.

摘要

•In this paper, image watermarking is implemented using DWT–SVD domain.•The Firefly Algorithm is used to implement image watermarking for the first time.•We demonstrate successful use of multiple scaling factors to achieve best results.•Robustness study indicates embedding algorithm is robust against image operations.•Watermark extraction from signed and attacked images is found to be well optimized.

论文关键词：Image watermarking,Firefly Algorithm,Perceptible quality,Normalized cross-correlation,Robustness,Multiple scaling factors (MSFs)

论文评审过程：Available online 19 June 2014.

论文官网地址：https://doi.org/10.1016/j.eswa.2014.06.011