Keyphrases
- edge detection
- multiscale
- edge detector
- noisy images
- image enhancement
- image processing
- morphological operations
- region growing
- image filtering
- recursive filtering
- sobel operator
- edge map
- data structure
- mathematical morphology
- gradient operators
- compositional semantics
- canny edge detection
- database
- nested relations
- zero crossing
- signal to noise ratio
- hierarchical structure
- databases