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- W1564091754 abstract "Most colour image printing and display devices do not have the capacity to deal with true colours. To overcome this limitation, these devices need to apply a quantisation method to reduce the number of colours present in the image. The research of this paper focuses on the study of a special set of quantisation methods known as dithering techniques. Several quantisation techniques already exist that produce good quality results which however are still not perfect. A new method is proposed in this contribution based on the same principles as those pertaining to the sigma-delta modulators used in analogue-to-digital conversion but extended to the two-dimensional image space. The results of this research show that the quality of the quantised image is improved because the quantisation noise is filtered more efficiently by the noise-shaping filter. Furthermore, the complexity of the method remains comparable with existing algorithms, such as the error diffusion method." @default.
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- W1564091754 date "2004-06-21" @default.
- W1564091754 modified "2023-09-26" @default.
- W1564091754 title "Colour quantisation through dithering techniques" @default.
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- W1564091754 doi "https://doi.org/10.1109/icip.2003.1247000" @default.
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