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. 2016 Aug 15;172(2):823–834. doi: 10.1104/pp.16.00948

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Figure 3. — Comparison of image-based measurements with measurements made using standard methods. Axes represent measurements made via one of three methods: image-based measurements made from plant meshes, manual measurements made with a measuring tape or protractor, and measurements with a LI-COR LI-3100C Area Meter. Plots with an axis representing image-based measurements are colored blue, and plots without an axis representing image-based measurements are colored orange. Leaf area measurements made with the platform include abaxial and adaxial leaf surfaces, so the image-based area measurements were divided by two for comparison with LI-COR measurements of area. MD, Mean difference between measurements; RMSD, root-mean-square difference; CV(RMSD), coefficient of variation of the RMSD given the range of data on the bottom axis; ρ, Pearson product-moment correlation coefficient; n, number of samples from which the differences and coefficients were calculated.