Keyphrases
- color images
- color quantization
- color space
- gray scale
- color information
- color correction
- human visual system
- color image segmentation
- grayscale images
- image processing
- quantization error
- entropy coding
- quantization step
- uniform quantization
- gray scale images
- color perception
- computational complexity
- multiscale
- contrast enhancement
- image enhancement
- impulsive noise
- high frequency
- digital images
- color channels
- quantization noise