Fig. 2
From: Plant Screen Mobile: an open-source mobile device app for plant trait analysis
On-the-fly segmentation of a Virginia mallow plant (Sida hermaphrodita). a Image of a Sida plant; b live view image displaying the on-the-fly HSV-segmentation of the imaged seedling (live view image was taken from a slightly different angle); RGB-camera values are first converted into HSV color space and then binarized using the parametrization of the HSV-filter in c lower and upper thresholds of the HSV-filter are adjusted such that the resulting plant mask can be analyzed for projected leaf area and other plant traits