Total length | Pixels or mm | The total length of root material for a given plant or given root in a plant |

Tip angle | Degrees from vertical | The angle of a given root tip calculated relative to the *y* axis of the image |

Emergence angle | Degrees | The angle of emergence for a lateral root, calculated relative to the primary root to which it is attached |

Start distance | Pixels or mm | The distance in pixels or mm along a primary root that a given lateral root has emerged |

Convex hull area | Pixels^{2} or mm^{2} | The area of the convex hull that encompasses all rot material belonging to a given plant |

Child count | | The number of child roots a given root has |

Classification map profile | Frequency over length | A two-dimensional data set showing the frequency of occurrences of a given classification in EM, over changes in depth; this can be used to measure the amount of root hair along a root or the amount of lateral roots along a rice seminal root |