Tampered Regions Detection for JPEG Images by Using DCT Coefficients of Re-Saved Image.
Mamoru NakaharaNariaki ImamuraShota FurukawaPublished in: ISCIT (2021)
Keyphrases
- jpeg images
- dct coefficients
- discrete cosine transform
- jpeg compression
- image blocks
- dct domain
- input image
- compression algorithm
- compressed images
- image authentication
- lossy compression
- compressed domain
- transform domain
- blocking artifacts
- data hiding
- low frequency
- spatial domain
- image regions
- event detection
- image compression
- image segmentation
- digital images
- optical flow
- multiresolution
- wireless channels
- feature vectors
- feature extraction
- image sequences