GUI for leaf segmentation. Graphical user interface for leaf segmentation: This GUI from module 2 provides a half-automated graph-based method (FH-algorithm) to segment leaves or leaf sections in RGB images. Selection of small interest regions within the input RGB image (top right) allows for a fast FH segmentation with a subsequent detailed editing (with the tools on the bottom left). Segments of acceptable quality may then be transferred to the final output (bottom right). FH segmentation parameters are regulated in the HSV color space together with a threshold for depth separation (left). Pre-processing specifications (e.g. smoothing and background segmentation) are inserted on the top left side. The current state shows an intermediate result of a segmentation for complete leaves.