Group-based sparse representation for low lighting image enhancement.
Wuzhen ShiCongcong ChenFeng JiangDebin ZhaoWeizheng ShenPublished in: ICIP (2016)
Keyphrases
- image enhancement
- sparse representation
- dictionary learning
- image processing
- sparse coding
- image analysis
- edge detection
- image classification
- contrast enhancement
- compressive sensing
- reconstruction error
- image patches
- signal processing
- face recognition
- histogram equalization
- partial differential equations
- image representation
- random projections
- image contrast enhancement
- high dimensional data
- dimensionality reduction
- lighting conditions
- transfer function
- object recognition
- computer vision
- enhanced image
- sparse coefficients