Environmental Monitoring and Assessment

, Volume 134, Issue 1–3, pp 287–292 | Cite as

Mapping broom snakeweed through image analysis of color-infrared photography and digital imagery

Article

Abstract

A study was conducted on a south Texas rangeland area to evaluate aerial color-infrared (CIR) photography and CIR digital imagery combined with unsupervised image analysis techniques to map broom snakeweed [Gutierrezia sarothrae (Pursh.) Britt. and Rusby]. Accuracy assessments performed on computer-classified maps of photographic images from two sites had mean producer’s and user’s accuracies for broom snakeweed of 98.3 and 88.3%, respectively; whereas, accuracy assessments performed on classified maps from digital images of the same two sites had mean producer’s and user’s accuracies for broom snakeweed of 98.3 and 92.8%, respectively. These results indicate that CIR photography and CIR digital imagery combined with image analysis techniques can be used successfully to map broom snakeweed infestations on south Texas rangelands.

Keywords

Color-infrared photography Color-infrared digital imagery Unsupervised image analysis-accuracy assessment Gutierrezia sarothrae 

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Copyright information

© Springer Science+Business Media B.V. 2007

Authors and Affiliations

  1. 1.USDA-ARS, Integrated Farming and Natural Resources ResearchWeslacoUSA

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