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Research article2018Peer reviewedOpen access

Specalyzer-an interactive online tool to analyze spectral reflectance measurements

Koc, Alexander; Henriksson, Tina; Chawade, Aakash


Low-cost phenotyping using proximal sensors is increasingly becoming popular in plant breeding. As these techniques generate a large amount of data, analysis pipelines that do not require expertise in computer programming can benefit a broader user base. In this work, a new online tool Specalyzer is presented that allows interactive analysis of the spectral reflectance data generated by proximal spectroradiometers. Specalyzer can be operated from any web browser allowing data uploading, analysis, interactive plots and exporting by point and click using a simple graphical user interface. Specalyzer is evaluated with case study data from a winter wheat fertilizer trial with two fertilizer treatments. Specalyzer can be accessed online at


Specalyzer; Spectroradiometer; Proximal phenotyping; Online tool; Spectral reflectance; Vegetation indices

Published in

2018, Volume: 6, article number: e5031
Publisher: PEERJ INC

      SLU Authors

    • UKÄ Subject classification

      Agricultural Science

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