From: A high-throughput stereo-imaging system for quantifying rape leaf traits during the seedling stage

Classification | Variable | Definition |
---|---|---|

Scale-invariant traits | AA | The aspect ratio of leaf minimum circumscribed box |

R | The ratio of leaf area to minimum circumscribed box area | |

AC | The ratio of leaf area to leaf convex hull area | |

PC | The ratio of leaf circumference to leaf convex hull perimeter | |

S | The ratio of leaf area to the square of leaf convex hull perimeter | |

E | The ratio of long axis of ellipse to short axis of ellipse | |

FF | The ratio of leaf area to the square of leaf perimeter | |

PAR | The ratio of leaf circumference to leaf area | |

SFD | Reflect the effectiveness of the occupies space without image cropping [53] | |

IFD | Reflect the effectiveness of the occupies space with image cropping [53] | |

C | The ratio of inscribed circle radius to circumscribed circle radius | |

Cavity traits | NIC | The number of inner cavities |

APIC | The average perimeter of inner cavities | |

AAIC | The average area of inner cavities | |

Margin related traits | TNI | Total number of indents |

ENI | Effective number of indents | |

ADI | The average depth of indents | |

ADEI | The average depth of effective indents | |

AVE | The average calculated value of effectiveness |