High Efficiency Reversible Data Hiding for Two-stage Vector Quantization Compressed Images.
Dongning ZhaoWeixin XieZhe-Ming LuPublished in: J. Inf. Hiding Multim. Signal Process. (2014)
Keyphrases
- compressed images
- vector quantization
- reversible data hiding
- image compression
- visual quality
- data hiding
- compression rate
- high capacity
- data embedding
- reconstructed image
- compression ratio
- vector quantizer
- lossless compression
- discrete cosine transform
- wavelet transform
- subband
- high frequency
- low bit rate
- image processing
- coding method
- distortion measure
- compression algorithm
- image quality
- secret data
- human visual system
- jpeg images
- cover image
- pixel values
- error concealment
- peak signal to noise ratio
- bitstream
- image reconstruction
- bit rate
- computer vision