Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 2 of 2
Full-Text Articles in Entire DC Network
A Decision Theory Approach To Tone Reproduction, Kevin E. Spaulding
A Decision Theory Approach To Tone Reproduction, Kevin E. Spaulding
Theses
The concepts of statistical decision theory were applied to the photographic tone reproduction system to develop an objective measurement of tone reproduction accuracy called the "expected loss" of the system. Reproductions were made of four scenes using systems with a wide range of tone reproduction characteristics. The expected loss for each system/scene combination was calculated, and the perceived tone reproduction accuracy was determined using the psychophysical scaling method of magnitude estimation. A statistically significant correlation was found between the subjectively determined accuracy, and system expected loss, but the degree of correlation was not high enough for the merit function to …
A Mathematical Model Of Halftone Reproduction Including The Effects Of Optical And Chemical Spreading, Cort Demmert
A Mathematical Model Of Halftone Reproduction Including The Effects Of Optical And Chemical Spreading, Cort Demmert
Theses
A system which predicts halftone reproduction curves for film-developer combinations, based on the combined optical and chemical modulation transfer function for that combination, has been tested using a 100 cycle/inch contact line screen. Density in fine detail is predicted and used to determine fractional area data. Predicted fractional area data was found to lie within 95 percent confidence intervals of experimental fractional area data.