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update readme

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  1. README.md +32 -0
  2. data_readme/sample_100_box_pos.png +0 -0
README.md ADDED
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+ ## Code snippet to visualise the position of the box
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+
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+ ```python
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+ import matplotlib.image as img
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+ import matplotlib.pyplot as plt
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+ from datasets import load_dataset
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+ from matplotlib.patches import Rectangle
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+ # Load dataset
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+ ds_name = "SaulLu/Stanford-Cars"
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+ ds = load_dataset(ds_name, use_auth_token=True)
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+ # Extract information for the sample we want to show
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+ index = 100
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+ sample = ds["train"][index]
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+ box_coord = sample["bbox"][0]
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+ img_path = sample["image"].filename
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+ # Create plot
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+ # define Matplotlib figure and axis
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+ fig, ax = plt.subplots()
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+ # plot figure
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+ image = img.imread(img_path)
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+ ax.imshow(image)
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+ # add rectangle to plot
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+ ax.add_patch(
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+ Rectangle((box_coord[2], box_coord[0]), box_coord[3] - box_coord[2], box_coord[1] - box_coord[0], fill=None)
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+ )
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+ # display plot
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+ plt.show()
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+ ```
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+
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+ Result:
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+ ![Sample with box position](data_readme/sample_100_box_pos.png)
data_readme/sample_100_box_pos.png ADDED