Color Edge Detection using Quaternion Convolution and Vector Gradient.
Nadia Ben YoussefAïcha BouzidPublished in: VISIGRAPP (4: VISAPP) (2017)
Keyphrases
- edge detection
- image processing
- recursive filtering
- color images
- linear filtering
- multiscale
- color texture
- directional filters
- edge detector
- noisy images
- gradient information
- color space
- zero crossing
- anisotropic diffusion
- color information
- image enhancement
- gradient magnitude
- mathematical morphology
- gray scale images
- step edges
- region growing
- feature vectors
- signal to noise ratio
- gradient vector
- edge map
- color components
- unsupervised segmentation
- color features
- image regions
- edge information
- edge detection algorithm
- mumford shah model
- gradient vectors
- sobel operator
- photometric invariant
- color texture segmentation
- gradient domain
- back projection
- color constancy
- texture images
- pixel values
- vector space
- binary images
- gray scale
- feature space
- feature extraction
- image sequences