Perceptually optimized sparse coding for HDR images via divisive normalization.
Lijuan XieXiang ZhangShiqi WangShanshe WangXinfeng ZhangSiwei MaPublished in: VCIP (2016)
Keyphrases
- sparse coding
- high dynamic range
- dictionary learning
- dynamic range
- sparse representation
- natural images
- image classification
- linear combination
- unsupervised learning
- tone mapping
- image representation
- generative model
- feature space
- human perception
- hdr images
- image capture
- high dimensional
- image patches
- clustering algorithm
- visual words
- higher order
- nearest neighbor
- image retrieval
- object recognition
- multiscale
- computer vision
- machine learning