Ineke M. C. J. van Overveld

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We have studied the effect of the simultaneous variation of contrast, noise, and blur on the perceived quality of digital radiograph images. Three images were processed with different levels of roentgen photon noise, different luminance (gray-level) ranges, and different amounts of Gaussian blur. Observers had to rate the quality of the images on a(More)
In medical images, the data often represent information with a quantitative meaning, such as the radiation absorption by tissues. Therefore, it is crucial that this quantitative information is accurately transferred into brightness impressions from luminance patterns on the display. Perceptual linearization was proposed by Pizer (1981) as a way to guarantee(More)
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