A new optimization based color image watermarking using non-negative matrix factorization in discrete cosine transform domain.
Sourabh SharmaHarish SharmaJanki Ballabh SharmaPublished in: J. Ambient Intell. Humaniz. Comput. (2022)
Keyphrases
- transform domain
- discrete cosine
- image watermarking
- spatial domain
- jpeg compression
- dct coefficients
- discrete cosine transform
- dct domain
- discrete wavelet transform
- frequency domain
- transform coefficients
- watermarking algorithm
- discrete fourier transform
- transform coding
- lossy compression
- digital watermarking
- video sequences
- high resolution
- watermarked image
- copyright protection
- motion estimation
- image processing
- macroblock