Non-linear filter response distributions of natural colour images

Balinsky, Alexander ORCID: https://orcid.org/0000-0002-8151-4462 and Mohammad, Nassir 2009. Non-linear filter response distributions of natural colour images. Lecture Notes on Computer Science 5646 , pp. 101-108. 10.1007/978-3-642-03265-3_11

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Abstract

We observe a non-Gaussian heavy tailed distribution for the non-linear filter applied to the chromacity channel ’U’ (and equivalently to ’V’) on individual natural colour images in the colour space YUV. We fit a Generalised Gaussian Distribution (GGD) to the histogram of the filter response, and observe the shape parameter (α) to lie within the range 0 < α< 2, but rarely α> 1.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Mathematics
Subjects:	Q Science > QA Mathematics Q Science > QA Mathematics > QA75 Electronic computers. Computer science
Uncontrolled Keywords:	Non-Gaussian Statistics; Image Colorization; Non-Linear Filter Response; Natural Colour Statistics.
Publisher:	Springer-Verlag
ISSN:	0302-9743
Last Modified:	19 Oct 2022 10:27
URI:	https://orca.cardiff.ac.uk/id/eprint/24432

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