import mmcv
from ..builder import PIPELINES
[文档]@PIPELINES.register_module()
class LoadImageFromFile:
"""Loading image from file.
Args:
color_type (str): Flags specifying the color type of a loaded image,
candidates are 'color', 'grayscale' and 'unchanged'.
channel_order (str): Order of channel, candidates are 'bgr' and 'rgb'.
"""
def __init__(self,
to_float32=False,
color_type='color',
channel_order='rgb'):
self.to_float32 = to_float32
self.color_type = color_type
self.channel_order = channel_order
def __call__(self, results):
"""Loading image from file."""
image_file = results['image_file']
img = mmcv.imread(image_file, self.color_type, self.channel_order)
if img is None:
raise ValueError(f'Fail to read {image_file}')
results['img'] = img
return results