%0 Journal Article %T SpotCard: an optical mark recognition tool to improve field data collection speed and accuracy %A Beverley J. Glover %A Hamish A. Symington %J Archive of "Plant Methods". %D 2019 %R 10.1186/s13007-019-0403-2 %X The online version of this article (10.1186/s13007-019-0403-2) contains supplementary material, which is available to authorized users %K Image analysis %K Automated analysis %K Field data collection %K ImageJ %K Fiji %U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6385457/