QDCT-Based Blind Color Image Watermarking With Aid of GWO and DnCNN for Performance Improvement.
Ling-Yuan HsuHwai-Tsu HuPublished in: IEEE Access (2021)
Keyphrases
- image watermarking
- spread spectrum
- color images
- jpeg compression
- copyright protection
- discrete wavelet transform
- lossy compression
- watermarking algorithm
- digital watermarking
- image regions
- watermark embedding
- geometric distortions
- additive noise
- multiscale
- gray level images
- maximum likelihood
- digital images
- digital libraries
- computational complexity
- image segmentation
- image processing