本文整理匯總了Python中mmcv.bbox_flip方法的典型用法代碼示例。如果您正苦於以下問題：Python mmcv.bbox_flip方法的具體用法？Python mmcv.bbox_flip怎麽用？Python mmcv.bbox_flip使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類mmcv的用法示例。
在下文中一共展示了mmcv.bbox_flip方法的3個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Python代碼示例。
示例1: bbox_flip
# 需要導入模塊: import mmcv [as 別名]
# 或者: from mmcv import bbox_flip [as 別名]
def bbox_flip(bboxes, img_shape):
"""Flip bboxes horizontally.
Args:
bboxes(Tensor or ndarray): Shape (..., 4*k)
img_shape(tuple): Image shape.
Returns:
Same type as `bboxes`: Flipped bboxes.
"""
if isinstance(bboxes, torch.Tensor):
assert bboxes.shape[-1] % 4 == 0
flipped = bboxes.clone()
flipped[:, 0::4] = img_shape[1] - bboxes[:, 2::4] - 1
flipped[:, 2::4] = img_shape[1] - bboxes[:, 0::4] - 1
return flipped
elif isinstance(bboxes, np.ndarray):
return mmcv.bbox_flip(bboxes, img_shape) 示例2: bbox_mapping
# 需要導入模塊: import mmcv [as 別名]
# 或者: from mmcv import bbox_flip [as 別名]
def bbox_mapping(bboxes, img_shape, scale_factor, flip):
"""Map bboxes from the original image scale to testing scale"""
new_bboxes = bboxes * scale_factor
if flip:
new_bboxes = bbox_flip(new_bboxes, img_shape)
return new_bboxes 示例3: bbox_mapping_back
# 需要導入模塊: import mmcv [as 別名]
# 或者: from mmcv import bbox_flip [as 別名]
def bbox_mapping_back(bboxes, img_shape, scale_factor, flip):
"""Map bboxes from testing scale to original image scale"""
new_bboxes = bbox_flip(bboxes, img_shape) if flip else bboxes
new_bboxes = new_bboxes / scale_factor
return new_bboxes