Space and frequency variant image enhancement based on a Gabor representation.
Gabriel CristóbalRafael Fonolla NavarroPublished in: Pattern Recognit. Lett. (1994)
Keyphrases
- image enhancement
- image processing
- contrast enhancement
- image processing and analysis
- image analysis
- image representation
- edge detection
- color image enhancement
- median filter
- histogram equalization
- gamma correction
- neural network
- minutiae extraction
- partial differential equations
- unsharp masking
- gabor filters
- feature vectors
- feature extraction