Facial Sketching Based on Sub-Image Illumination Removal and Multiscale Edge Filtering.
F. A. P. V. ArrudaV. A. PortoHerman Martins GomesJosé Eustáquio Rangel de QueirozNathan MoroneyPublished in: SITIS (2007)
Keyphrases
- multiscale
- edge detection
- single image
- multiple scales
- image representation
- illumination compensation
- lighting conditions
- input image
- image features
- image segmentation
- intensity variations
- imaging conditions
- scale space
- image classification
- gray value
- illumination conditions
- smoothing filter
- image processing
- image edges
- edge information
- coarse to fine
- contrast enhancement
- directional filtering
- pixel values
- feature points
- keypoints
- partial occlusion
- natural images
- human faces
- color constancy
- edge points
- face recognition
- image retrieval
- image quality
- laplacian pyramid
- color texture
- frequency domain
- edge pixels
- feature vectors
- color distribution
- image matching
- wavelet transform