Distortion function based on residual blocks for JPEG steganography.
Qingde WeiZhaoxia YinZichi WangXinpeng ZhangPublished in: Multim. Tools Appl. (2018)
Keyphrases
- jpeg images
- dct coefficients
- adaptive quantization
- image compression
- jpeg compressed images
- image coding
- image quality measures
- compression algorithm
- jpeg compression
- wavelet transform
- quantization step
- vector quantizer
- low bit rate
- bit allocation
- perceptual image quality
- hidden information
- information hiding
- compressed images
- discrete cosine transform
- vector quantization
- image quality
- digital images