A readability gauge was constructed which objectively gauges the readability of printed matter. In the past such gauges have been produced using photographically created noise. In this study a gauge was constructed using noise generated by a computer. This gauge was evaluated and compared with a gauge produced using the photographic technique of noise generation. The computer generated gauge proved to be as good as the photographic gauge at detecting differences in legibility of printed type. It was also found that the only two causes of variability in the legibility samples used were letter size and letter contrast. Using only size and contrast as variables it was possible to explain 92% of the variability of the gauges.
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Department, Program, or Center
School of Photographic Arts and Sciences (CIAS)
Dennison, Michael, "Readability Determination Using Superimposed Random Noise Patterns" (1979). Thesis. Rochester Institute of Technology. Accessed from
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