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Image processing algorithm able to simulate the illusion of new colors and shades by varying the pattern of available colors.
In computer graphics, dithering is an image processing operation used to create the illusion of color depth in images with a limited color palette. Colors not available in the palette are approximated by a diffusion of colored pixels from within the available palette. The human eye perceives the diffusion as a mixture of the colors within it. Dithering is analogous to the halftone technique used in printing [1]. Dithered images, particularly those with relatively few colors, can often be distinguished by a characteristic graininess, or speckled appearance [2]. Color error diffusion is a high-quality method for the color rendering of continuous-tone digital color images on devices with limited color palettes such as low-cost displays and printers. For display applications the input colorant space is a triplet of RGB values and the...
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References
R. Ulichney, Digital Halftoning, MIT Press, Cambridge, MA, 1987.
J.M. Buhmann, “Dithered Color Quantization,” In Proceedings of the EUROGRAPHICS: Computer Graphics Forum, Lisboa, Portugal, 17219–231, (3): 1998.
R.W. Floyd, L. Steinberg “An Adaptive Algorithm for Spatial Gray Scale”, In Proceedings of SID (Society for Information Displays) – Digest of technical papers, pp. 36–37, 1975.
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© 2008 Springer-Verlag
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(2008). Dithering. In: Furht, B. (eds) Encyclopedia of Multimedia. Springer, Boston, MA. https://doi.org/10.1007/978-0-387-78414-4_18
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DOI: https://doi.org/10.1007/978-0-387-78414-4_18
Publisher Name: Springer, Boston, MA
Print ISBN: 978-0-387-74724-8
Online ISBN: 978-0-387-78414-4
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