Document Image Enhancement Using Directional Wavelet.
Qian WangTao XiaLida LiChew Lim TanPublished in: CVPR (2) (2003)
Keyphrases
- image enhancement
- image processing
- contrast enhancement
- image processing and analysis
- image analysis
- edge detection
- denoising
- histogram equalization
- color image enhancement
- multiscale
- image contrast enhancement
- wavelet domain
- noise removal
- wavelet transform
- partial differential equations
- median filter
- unsharp masking
- wavelet coefficients
- feature extraction
- multiresolution
- gamma correction
- shock filter
- enhanced image
- diffusion equation