Line correctness evaluation example. Line correctness means that information from lines is ordered, not fragmented, and not mixed.   

  Part of: Nieva de la Hidalga A, Owen D, Spacic I, Rosin P, Sun X (2019) Use of Semantic Segmentation for Increasing the Throughput of Digitisation Workflows for Natural History Collections. Biodiversity Information Science and Standards 3: e37161.