Keyphrases
- contrast enhancement
- error bounds
- color images
- image enhancement
- theoretical analysis
- histogram equalization
- worst case
- low contrast
- gray level
- color space
- unsharp masking
- gray scale
- enhanced image
- tone mapping
- multiscale
- visual quality
- transfer function
- image processing
- color information
- finite sample
- high quality
- human faces
- image quality
- image contrast
- image contrast enhancement
- image data
- adaptive histogram equalization