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Apple Blotch Detection

Detached apple leaves photographed after artificial inoculation with Diplocarpon coronariae, the fungus behind apple blotch, as part of a resistance screening of apple genetic resources (551 varieties in 2022, 80 in 2023) at the Julius Kühn Institute in Dresden-Pillnitz, Germany. Leaves were imaged on a light table with a tripod-mounted Canon DSLR, and 768 x 768 crops of the leaf surface were annotated with bounding boxes around individual acervuli (the fungus's spore-producing spots) for training a YOLOv5 counting model. Crops without symptoms are kept as negatives with no boxes; the split column keeps the authors' train/val split. The dataset contains 927 images with 4,167 bounding box annotations across 1 category.

This dataset is indexed on https://project-agml.github.io/ as part of the AgML python library.

The original train/test/val split has been preserved in the split column.

Citation

@article{reim2024yolo,
  title={YOLO-Based Phenotyping of Apple Blotch Disease (Diplocarpon coronariae) in Genetic Resources after Artificial Inoculation},
  author={Reim, Stefanie and Richter, Sophie and Leonhardt, Oskar and Maß, Virginia and Wöhner, Thomas Wolfgang},
  journal={Agronomy},
  volume={14},
  pages={1042},
  year={2024},
  publisher={MDPI}
}

This dataset was reformatted from its original format to match HuggingFace standards.

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