Local contrast enhancement for human face recognition in poor lighting conditions.
Wen-Chung KaoMing-Chai HsuPublished in: SMC (2008)
Keyphrases
- human face recognition
- contrast enhancement
- lighting conditions
- color restoration
- face images
- human faces
- image enhancement
- face recognition
- viewpoint
- histogram equalization
- visual quality
- gray level
- multiscale
- light source
- color images
- transfer function
- skin color
- pattern recognition
- facial expressions
- feature vectors
- image processing
- dynamic range compression
- low contrast
- principal component analysis
- high resolution
- intensity images
- image segmentation
- decision trees
- enhanced image
- feature space
- image sequences
- spatial domain
- facial images