Grayscale/resolution tradeoffs in image quality

Thls paper describes a metric for predicting thc perceptual similarity bctween a lob7-resolution grayscale character and the higher-resolution binary bitmap that was used to generate the grayscale character. The metric is used to quantify perceptual tradeoffs between the number of graylevels in a character bitmap and the resolution of the sampling grid.

[1]  J. Farrell,et al.  Discriminability metric based on human contrast sensitivity. , 1990, Journal of the Optical Society of America. A, Optics and image science.

[2]  R. A. Weale,et al.  Color in Business, Science and Industry, 3rd ed , 1976 .

[3]  S. Klein,et al.  Hyperacuity thresholds of 1 sec: theoretical predictions and empirical validation. , 1985, Journal of the Optical Society of America. A, Optics and image science.

[4]  D. H. Kelly.  Spatial frequency selectivity in the retina , 1975, Vision Research.

[5]  Robert A. Morris,et al.  Raster imaging and digital typography II , 1991 .

[6]  S. S. Stevens.  On the psychophysical law. , 1957, Psychological review.

[7]  F. Campbell.  The human eye as an optical filter , 1968 .

[8]  G. Legge.  A power law for contrast discrimination , 1981, Vision Research.

[9]  C. H. Coombs,et al.  Mathematical psychology : an elementary introduction , 1970 .