Wavelet transform and pixel strength-based robust watermarking using dragonflyoptimization.
B. HemamaliniV. NagarajanPublished in: Multim. Tools Appl. (2020)
Keyphrases
- wavelet transform
- robust watermarking
- copyright protection
- multiresolution
- high capacity
- image compression
- multiscale
- high frequency
- subband
- image watermarking
- wavelet domain
- low frequency
- wavelet coefficients
- feature extraction
- computer vision
- pixel values
- binary images
- gray level images
- signal processing
- edge detection
- input image