Power Constrained Contrast Enhancement by Joint L2, 1-norm Regularized Sparse Coding for OLED Display.
En-Hung LaiBo-Hao ChenLing-Feng ShiPublished in: MIPR (2018)
Keyphrases
- sparse coding
- contrast enhancement
- norm minimization
- natural images
- sparse representation
- image enhancement
- dictionary learning
- multiscale
- image classification
- gray level
- unsupervised learning
- image representation
- convex optimization
- linear combination
- generative model
- color images
- reconstruction error
- tone mapping
- visual quality
- transfer function
- image patches
- high dimensional data
- object recognition
- image analysis
- ground truth
- feature space
- input image
- computer vision
- high dimensional
- visual words
- text classification
- higher order