Keyphrases
- halftoning algorithm
- error diffusion
- blue noise
- direct binary search
- image quality
- inverse halftoning
- continuous tone images
- gray scale
- error diffusion halftoning
- human visual system
- high frequency
- quantization error
- gray level
- halftone images
- frequency domain
- feature selection
- noise model
- binary images
- digital images
- image data
- high resolution