Exploiting Fine-Grained DCT Representations for Hiding Image-Level Messages within JPEG Images.
Junxue YangXin LiaoPublished in: ACM Multimedia (2023)
Keyphrases
- fine grained
- jpeg images
- coarse grained
- discrete cosine transform
- file size
- compression algorithm
- information hiding
- dct coefficients
- image data
- image compression
- image segmentation
- input image
- lossy compression
- compressed images
- access control
- image blocks
- dct domain
- spatial domain
- jpeg compression
- blocking artifacts
- low bit rate
- data hiding
- compressed domain
- co occurrence
- post processing
- pixel values