High payload steganography mechanism using hybrid edge detector.
Wen-Jan ChenChin-Chen ChangT. Hoang Ngan LePublished in: Expert Syst. Appl. (2010)
Keyphrases
- edge detector
- edge detection
- gray level
- figure of merit
- matching criterion
- edge map
- gradient vector
- zero crossing
- region segmentation
- signal to noise ratio
- edge detection algorithms
- sar images
- edge points
- noisy images
- feature detectors
- edge localization
- detected edges
- step edges
- similarity measure
- medical images
- pattern recognition