Species differentiation of slipper orchids using color image analysis

Authors

  • Ernesto Sanz Departamento de Biología, Facultad de Ciencias, Universidad Autónoma de Madrid, C/Darwin, 2, E-28049 Madrid, Spain
  • Noreen von Cramon Taubadel Department of Anthropology, School of Anthropology and Conservation, University of Kent, Marlowe Building, Canterbury, Kent CT2 7NR, U.K.
  • David L. Roberts Durrell Institute of Conservation and Ecology, School of Anthropology and Conservation, University of Kent, Marlowe Building, Canterbury, Kent CT2 7NR, U.K.

DOI:

https://doi.org/10.15517/lank.v0i0.11743

Keywords:

digital, discrimination, orchidaceae, paphiopedilum, photograph, phragmipedium

Abstract

A number of automated species recognition systems have been developed recently to aid nonprofessionals in the identification of taxa. These systems have primarily used geometric morphometric based techniques, however issues surround their wider applicability due to the need for homologous landmarks. Here we investigate the use of color to discriminate species using the two horticulturally important slipper orchid genera of Paphiopedilum and Phragmipedium as model systems. The ability to differentiate the various taxonomic groups varied, depending on the size of the group, diversity of colors within the group, and the background of the image. In this study the image analysis was conducted with images of single flowers of the species, however since flowers are ephemeral, flowering for a relatively short period of time, such analysis should be extended to vegetative parts, particularly as this is the form in which they are most often traded internationally.

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How to Cite

Sanz, E., von Cramon Taubadel, N., & Roberts, D. L. (2013). Species differentiation of slipper orchids using color image analysis. Lankesteriana: International Journal on Orchidology, 12(3). https://doi.org/10.15517/lank.v0i0.11743