Perceptual threshold in DWT for optimum embedding rate in data hiding using HVS and GA.
Raniyah WaziraliZenon ChaczkoPublished in: IVCNZ (2015)
Keyphrases
- data hiding
- human visual system
- lossy compression
- quantization index modulation
- just noticeable difference
- wavelet domain
- error diffusion
- discrete wavelet transform
- spatial domain
- reversible data hiding
- transform domain
- error correction
- secret data
- human perception
- watermarking technique
- visual quality
- information hiding
- image quality
- spread spectrum
- high capacity
- embedding capacity
- cover image
- data embedding
- perceptual quality
- image watermarking
- data hiding scheme
- secret message
- jpeg images
- tamper detection
- image quality assessment
- dct domain
- frequency domain
- visual information
- multiresolution
- digital watermarking
- watermark embedding
- high quality
- subband
- high frequency
- motion estimation
- halftone images
- image sequences
- quantization step
- smart card
- reconstructed image