An efficient histogram-based index mapping mechanism for reversible data hiding in VQ-compressed images.
Peyman RahmaniGholamhossein DastghaibyfardPublished in: Inf. Sci. (2018)
Keyphrases
- compressed images
- reversible data hiding
- visual quality
- index table
- compression rate
- image compression
- image quality
- data embedding
- high capacity
- data hiding
- reconstructed image
- discrete cosine transform
- blocking artifacts
- vector quantization
- compression ratio
- dct domain
- high frequency
- human visual system
- wavelet transform
- bitstream
- bit rate
- peak signal to noise ratio
- coding scheme
- compressed domain
- jpeg images
- error correction
- image sequences
- image data
- computational complexity