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. 2020 Oct 7;10:16669. doi: 10.1038/s41598-020-73704-x

Figure 2.

Figure 2

Image segmentation separating plants with green or reddish leaves from brownish background. Plants with reddish leaves are difficult to identify correctly using a phenotyping instrument based on RGB imaging unless training is performed and specific machine-learning algorithms are used. (a) Tray with Arabidopsis plants with different leaf colors. (b) Segmented image obtained with the software developed here, showing that almost all pixels are correctly associated with plants, regardless of their leaf color. Pixels related to each plant are colored as overlay on the original image. The convex hull area of the plants is also shown as a thin yellow line around the plant shape.