Recompression of JPEG Crypto-Compressed Images Without a Key.
Vincent ItierPauline PuteauxWilliam PuechPublished in: IEEE Trans. Circuits Syst. Video Technol. (2020)
Keyphrases
- compressed images
- jpeg images
- dct domain
- compressed domain
- image compression
- dct coefficients
- visual quality
- compression ratio
- artifact reduction
- discrete cosine transform
- bitstream
- spatial domain
- blocking artifacts
- image quality measures
- human visual system
- transform domain
- post processing
- bit rate
- reconstructed image
- digital video
- macroblock
- image quality
- preprocessing
- transform coding
- frequency domain
- rate distortion