Keyphrases
- estimation error
- image quality
- estimation accuracy
- visual quality
- high quality
- quality assessment
- reconstructed image
- standard deviation
- image data
- error rate
- covariance matrix
- average error
- human visual system
- bit rate
- human observers
- approximation error
- quality metrics
- step size
- error diffusion
- compression ratio
- image processing
- lower bound
- inverse halftoning
- high image quality
- human visual sensitivity