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---
dataset_info:
- config_name: augmented
  features:
  - name: image
    dtype: image
  - name: mask
    dtype: image
  - name: split
    dtype: string
  - name: source
    dtype: string
  - name: plot
    dtype: string
  splits:
  - name: train
    num_bytes: 219439737
    num_examples: 3859
  download_size: 316352696
  dataset_size: 219439737
- config_name: raw
  features:
  - name: image
    dtype: image
  - name: mask
    dtype: image
  - name: source
    dtype: string
  - name: plot
    dtype: string
  splits:
  - name: train
    num_bytes: 91246792
    num_examples: 919
  download_size: 91381170
  dataset_size: 91246792
configs:
- config_name: augmented
  data_files:
  - split: train
    path: augmented/train-*
- config_name: raw
  data_files:
  - split: train
    path: raw/train-*
  default: true
license: cc-by-4.0
task_categories:
- image-segmentation
size_categories:
- n<1K
---
# Openear Base Segmentation

This dataset provides real-world RGB imagery of maize crops in field environments, captured at Hongqi Base, Hainan, China. Collected using ground-based platforms with a Raspberry Pi HQ camera during the 2025-2026 growing season, it supports semantic segmentation tasks for agricultural phenotyping in maize fields. The dataset contains raw and augmented versions.
The raw split contains 919 images with pixel-level mask annotations.  

The augmented split contains 3,859 images with pixel-level mask annotations.  


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

```bibtex
@article{fan2026openear,
  title={OpenEar: an ultra-affordable, high-throughput, and accurate maize ear phenotyping system},
  author={Fan, Shaoqi and Li, Guoji and Bahitwa, Revocatus and Jia, Zhiguo and Zhang, Hongwei and Shao, Jinghong and Yu, Qiuying and Chen, Xiaoran and Qian, Yiheng and Xu, Mingchi and Zhu, Linlin and Wang, Hai},
  journal={Plant Methods},
  volume={22},
  pages={26},
  year={2026},
  publisher={BioMed Central}
}
```

Fan, S. (2025). <i>Datasets for OpenEar model training</i> (Version 2). figshare. https://doi.org/10.6084/m9.figshare.26282563.v2

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