Retinex-based image enhancement framework by using region covariance filter.
Fuyu TaoXiaomin YangWei WuKai LiuZhili ZhouYiguang LiuPublished in: Soft Comput. (2018)
Keyphrases
- image enhancement
- noise removal
- image processing
- unsharp masking
- median filter
- image analysis
- edge detection
- contrast enhancement
- transfer function
- shock filter
- histogram equalization
- color image enhancement
- homomorphic filtering
- partial differential equations
- enhanced image
- image contrast enhancement
- blood vessels
- machine learning
- noise reduction
- image contrast
- minutiae extraction
- dynamic range compression
- gamma correction
- co occurrence
- pattern recognition