Datasets:
bentrevett
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Update README.md
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README.md
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path: data/train-*
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- split: test
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path: data/test-*
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---
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path: data/train-*
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- split: test
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path: data/test-*
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task_categories:
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- image-classification
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size_categories:
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- 10K<n<100K
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---
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# CUB-200-2011
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This dataset contains the Caltech-UCSD Birds-200-2011 (CUB-200-2011) dataset, from [here](https://www.vision.caltech.edu/datasets/cub_200_2011/).
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Each example consists of an image, a label, and a bounding box.
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### Data Splits
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The CUB-200-2011 dataset has 2 splits: _train_ and _test_.
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| Dataset Split | Number of Instances in Split |
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| ------------- | ------------------------------------------- |
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| Train | 5,994 |
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| Test | 5,794 |
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There are 200 classes, with either 29-30 examples per class in the train split. The test split has more variable of examples per class, most are 29-30 but there are some with fewer (the lowest is 11).
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### Bounding Boxes
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Each bounding box is in the form of [x0, y0, x1, y1] and can be used as such:
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```python
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import datasets
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from PIL import Image, ImageDraw
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import matplotlib.pyplot as plt
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dataset = datasets.load_dataset("bentrevett/cub-200-2011")
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example = dataset["train"][0]
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image = example["image"]
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bbox = example["bbox"]
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draw = ImageDraw.Draw(image)
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draw.rectangle(bbox, outline="red", width=2)
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plt.imshow(image)
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```
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### Citation Information
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```
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@techreport{WahCUB_200_2011,
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Title = ,
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Author = {Wah, C. and Branson, S. and Welinder, P. and Perona, P. and Belongie, S.},
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Year = {2011}
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Institution = {California Institute of Technology},
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Number = {CNS-TR-2011-001}
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}
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```
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