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27 August 1992 Spatial nonlinearities of gray-scale CRT pixels
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Proceedings Volume 1666, Human Vision, Visual Processing, and Digital Display III; (1992) https://doi.org/10.1117/12.135955
Event: SPIE/IS&T 1992 Symposium on Electronic Imaging: Science and Technology, 1992, San Jose, CA, United States
Abstract
We measured the overall luminance, the luminance profile of individual pixels, and the interactions among neighboring pixels of a grayscale (i.e., non-color) CRT, using a two- dimensional CCD camera. We find that the luminance of a pixel depends on the luminance of the two preceding pixels in the raster, and that the interaction results in superadditivity. Furthermore, the luminance of a pixel depends on the proportion of the screen illuminated. Two consequences of these nonlinearities are that average luminance (as in a halftone image) cannot be predicted from the linear summation of individual pixel spread functions, and that inverting the polarity of a display does not simply invert the luminance profiles. These interactions must be taken into account wherever the luminance profile of displayed stimuli is important.
© (1992) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Avi C. Naiman and Walter Makous "Spatial nonlinearities of gray-scale CRT pixels", Proc. SPIE 1666, Human Vision, Visual Processing, and Digital Display III, (27 August 1992); https://doi.org/10.1117/12.135955
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