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File size: 613 Bytes
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__all__ = ['letterbox_2d_points', 'unletterbox_2d_points']
def letterbox_2d_points(points, scale=1.0, pad_left=0, pad_top=0, copy=True):
if copy:
points = points.copy()
points[..., 0::2] = points[..., 0::2] * scale + pad_left
points[..., 1::2] = points[..., 1::2] * scale + pad_top
return points
def unletterbox_2d_points(points, scale=1.0, pad_left=0, pad_top=0, copy=True):
if copy:
points = points.copy()
points[..., 0::2] = (points[..., 0::2] - pad_left) / scale
points[..., 1::2] = (points[..., 1::2] - pad_top) / scale
return points
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