Display. Visualization - Plasma displays. Video image rendering : Gamma and dithering function

Gamma and dithering function
Display. Visualization - Plasma displays. Video image rendering

Author : Sébastien WEITBRUCH

Publication date: December 10, 2005 | Lire en français

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3. Gamma and dithering function

3.1 Standard CRT gamma function

In a cathode ray tube, the luminance of the screen is not linearly proportional to the intensity of the electron bombardment , but follows a quadratic function: $I_{screen} = {(I_{signal})}^{γ}$

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Gamma and dithering function

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Grayscale rendering

References

(1) - OHM (J.-R.), RUMMLER (K.) - Variable-Raster Multiresolution Video Processing with Motion Compensation Techniques. - Proceedings of the 1997 International Conference on Image Processing (ICIP'97), vol. 3, 1997.
(2) - OPPENHEIM (A.V.), SCHAFER (R.W.) - Digital signal processing....

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Gamma and dithering function Display. Visualization - Plasma displays. Video image rendering

3. Gamma and dithering function

3.1 Standard CRT gamma function

References

Gamma and dithering function
Display. Visualization - Plasma displays. Video image rendering