Optimum Image Tone Reproduction

C. J. Bartleson

In 1967 Bartleson and Breneman applied experimental results of scaled brightness perceptions in complex fields to the analysis of image tone reproduction (Jour. Opt. Soc. Am., 57: 953, 1967). Other workers have suggested the use of brightness perception data obtained with simple-field viewing conditions for tone reproduction analysis. There are, however, significant differences between the perceptual functions for simple- and complex-field viewing. This paper describes the effects of one such difference on the estimation of optimum tone reproduction gradients. It is shown that the complex-field data relate more realistically to tone reproduction requirements in that they accord better with independent, empirical results found in the study of optimum tone reproduction. A simplified expression for predicting relative brightnesses in complex images is proposed for use in studies of tone reproduction.

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Published
1975-08
Content type
Original Research
DOI
10.5594/J13320