Reversible Data Hiding in Encrypted Images Using Median Edge Detector and Two's Complement.
Rui WangGuohua WuQiuhua WangLifeng YuanZhen ZhangGongxun MiaoPublished in: Symmetry (2021)
Keyphrases
- edge detector
- edge detection
- edge detection algorithms
- input image
- image data
- image analysis
- edge localization
- gray level
- pixel values
- step edges
- edge orientation
- reversible data hiding
- image processing
- detected edges
- test images
- multiscale
- noisy images
- image regions
- object recognition
- image features
- image enhancement
- scale space