Image smoothing based on histogram equalized content-aware patches and direction-constrained sparse gradients.
Yepeng LiuFan ZhangYongxia ZhangXuemei LiCaiming ZhangPublished in: Signal Process. (2021)
Keyphrases
- content aware
- image smoothing
- image processing and computer vision
- histogram equalization
- spatially varying
- edge preserving
- gray level
- content delivery
- image patches
- image enhancement
- image restoration
- contrast enhancement
- sparse representation
- partial differential equations
- motion estimation
- hyperspectral
- mean shift
- photometric stereo
- region boundaries
- noise reduction
- jpeg images
- dynamic range
- high quality
- sparse coding
- gray scale
- natural images
- video sequences