Fix bug in `plot_one_box` when label is `None` (#4588)
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7b35971ba5
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@ -72,7 +72,7 @@ def plot_one_box(box, im, color=(128, 128, 128), txt_color=(255, 255, 255), labe
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assert im.data.contiguous, 'Image not contiguous. Apply np.ascontiguousarray(im) to plot_on_box() input image.'
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lw = line_width or max(int(min(im.size) / 200), 2) # line width
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if use_pil or not is_ascii(label): # use PIL
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if use_pil or (label is not None and not is_ascii(label)): # use PIL
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im = Image.fromarray(im)
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draw = ImageDraw.Draw(im)
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draw.rectangle(box, width=lw + 1, outline=color) # plot
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