Using Eigenvectors of a Vector Field for Deriving a Second Directional Derivative Operator for Color Images.
W. AlshattiPatrick LambertPublished in: CAIP (1993)
Keyphrases
- vector field
- color images
- differential operators
- gray scale
- gradient field
- covariance matrix
- color space
- optical flow
- principal component analysis
- image processing
- color image processing
- velocity field
- vector median filter
- motion field
- contrast enhancement
- flow field
- external force
- spectral clustering
- critical points
- zero crossing
- displacement field
- scalar field