The Community for Technology Leaders
RSS Icon
Subscribe
Issue No.05 - September/October (1991 vol.11)
pp: 18-29
ABSTRACT
<p>Three approaches that together improve the quality of dithered images by decreasing the intensity error and distributing the remaining quantization error more effectively, both spatially and across the intensity range, are described. The first method improves the intensity error distribution. The second method, which is complementary to the first, improves the quality of low-intensity vectors and surfaces through the use of a nonlinear quantizer. The third method specifically improves vector dithering. The primary focus is on dithering from 24 b to 12 b RGB but 24-b to 15-b dithering (5 bits each of red, green, and blue) were also investigated.</p>
CITATION
Stuart C. Wells, Grant J. Williamson, Susan E. Carrie, "Dithering for 12-Bit True-Color Graphics", IEEE Computer Graphics and Applications, vol.11, no. 5, pp. 18-29, September/October 1991, doi:10.1109/38.90564
REFERENCES
1. B. Lippel and M. Kurland, "The Effect of Dither on Luminance Quantization of Pictures,"IEEE Trans. Communications, Vol. 19, No 6, Dec. 1971, pp. 879-888.
2. A.N. Netravali and B. Prasada, " Adaptive Quantization of Picture Signals Using Spatial Masking,"Proc. of IEEE, Vol. 65, No. 4, Apr. 1977, pp. 536-548.
3. A. Jain,Fundamentals of Digital Image Processing. Englewood Cliffs, NJ: Prentice-Hall, 1989.
4. S. Gupta and R.F. Sproull, "Filtering Edges for Gray-Scale Displays."Computer Graphics(Proc. Siggraph), Vol. 15, No. 3, Aug. 81, pp. 1-5.
5. D. F. Rogers,Procedural Elements for Computer Graphics. New York: McGraw-Hill, 1985.
6. R. Ulichney,Digital Halftoning. Cambridge, MA: MIT Press, 1987.
7. T. Porter and T. Duff, "Compositing Digital Images,"Computer Graphics(Proc. Siggraph), Vol. 18, No. 3, July 1984, pp. 253-259.
8. Harry L. Snyder, "The Visual System: Capabilitics and Limitations," inFlat Panel Displays and CRTs, L.E. Tannas. cd., Van Nostrand Reinhold, New York, 1985, pp. 54-69.
9. G. Wyszecki and W. Stiles,Color Science: Concepts and Methods, Quantitative Data and Formulae, John Wiley&Sons, New York, 1982.
16 ms
(Ver 2.0)

Marketing Automation Platform Marketing Automation Tool