Lossless robust color image watermarking using lifting scheme and GWO.
Mahendra K. PandeyGirish ParmarRajeev GuptaAfzal SikanderPublished in: Int. J. Syst. Assur. Eng. Manag. (2020)
Keyphrases
- image watermarking
- lossy compression
- lifting scheme
- lossless compression
- image quality
- image compression
- gray level images
- discrete wavelet transform
- watermarking algorithm
- compression ratio
- pattern matching
- bit rate
- data hiding
- color images
- geometric distortions
- jpeg compression
- low bit rate
- watermarking technique
- digital watermarking
- wavelet transform
- pixel values
- binary images
- gray level
- multiresolution
- discrete cosine transform
- reconstructed image
- quadtree
- image denoising