Non-photorealistic rendering with reduced colour palettes

Lai, Yukun ORCID: https://orcid.org/0000-0002-2094-5680 and Rosin, Paul L. ORCID: https://orcid.org/0000-0002-4965-3884 2013. Non-photorealistic rendering with reduced colour palettes. Rosin, Paul L. and Collomosse, John, eds. Image and Video-Based Artistic Stylisation, Vol. 42. Computational Imaging and Vision, vol. 42. Springer, pp. 211-236. (10.1007/978-1-4471-4519-6_11)

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Abstract

In contrast to photorealistic rendering, where richer colours are likely to be preferred, non-photorealistic rendering can often benefit from some abstraction, and colour palette reduction is one direction. By using a small number of carefully selected colours the overall tonal distribution can be well expressed with less visual clutter. This is also essential to simulate certain art forms, such as cartoons, comics, paper-cuts, woodblock printing, etc. that naturally prefer or require reduced palettes. In this chapter we will summarise major techniques used in colour palette reduction, such as region segmentation, thresholding and colour palette selection. Most approaches consider images as input and generate stylised image renderings while some work also considers video stylisation, in which case temporal coherence is essential. We finish this chapter with some discussions of potential future directions.

Item Type:	Book Section
Date Type:	Publication
Status:	Published
Schools:	Computer Science & Informatics
Subjects:	Q Science > QA Mathematics > QA75 Electronic computers. Computer science
Publisher:	Springer
ISBN:	9781447145189
ISSN:	13816446
Date of First Compliant Deposit:	23 December 2016
Date of Acceptance:	1 January 2013
Last Modified:	02 Nov 2022 10:00
URI:	https://orca.cardiff.ac.uk/id/eprint/97085

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