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Erschienen in:
2014 | OriginalPaper | Buchkapitel
Visualisations and Covers
verfasst von : James F. Peters
Erschienen in: Topology of Digital Images
Verlag: Springer Berlin Heidelberg
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This chapter introduces various ways to visualise digital images. For example, the distribution of pixel orientations in a tree nymph butterfly (genus
idea
, species
I.leuconoe
, family
nymphalidae
) is shown in Fig. 3.1.1 and the distribution of pixel orientations for a red admiral butterfly (genus
vanessa
, species
atalanta
, family
nymphalidae
) is shown in Fig. 3.1.2 (see MathScript 6 in Appendix A.3 for the Mathematica script used to produce these distributions). By itself, the distribution in Fig. 3.1.1 is interesting, since it indicates the dominance of negative pixel orientations in the tree nymph butterfly (at rest). By contrast, the pixel orientations of the red admiral butterfly (at rest) in Fig. 3.1.2 aremarkedly less negative.This form of visualisation is useful in the case where a pair of images are compared and classified, based on pixel orientations.