Keyphrases
- edge detection
- image features
- image classification
- image analysis
- input image
- multiscale
- template matching
- image edges
- image data
- low level
- image retrieval
- edge direction
- gradient magnitude
- grey level
- edge map
- image pixels
- sobel operator
- adjacent pixels
- edge points
- gray value
- multiple scales
- test images
- image representation
- segmentation algorithm
- image content
- image matching
- image gradient
- image segmentation
- dynamic programming
- edge pixels
- gradient information
- segmentation method
- spatial information
- edge detector
- image interpolation
- hough transform
- zero crossing
- vector field
- sharp edges
- image collections
- edge detection algorithm
- feature points
- high resolution
- adjacent regions