mindspore.dataset.vision.py_transforms.Grayscale

class mindspore.dataset.vision.py_transforms.Grayscale(num_output_channels=1)[source]

Convert the input PIL image to grayscale image.

Parameters: num_output_channels (int) – Number of channels of the output grayscale image (1 or 3). Default is 1. If set to 3, the returned image has 3 identical RGB channels.

Examples

>>> import mindspore.dataset.vision.py_transforms as py_vision
>>> from mindspore.dataset.transforms.py_transforms import Compose
>>>
>>> Compose([py_vision.Decode(),
>>>          py_vision.Grayscale(3),
>>>          py_vision.ToTensor()])