Color Facial Image Representation with New Quaternion Gradients.
Artyom M. GrigoryanSos S. AgaianPublished in: Image Processing: Algorithms and Systems (2018)
Keyphrases
- facial images
- texture information
- color images
- facial expression recognition
- facial expressions
- gender classification
- color information
- human faces
- color texture
- face recognition
- color space
- face detection
- image database
- machine learning
- fourier transform
- image representation
- active appearance models
- color features
- multi class