How can I give image to monai transforms?

[JuAnYoO]

test_transforms = Compose(
[
LoadImaged(keys=["image1","image2"]),
EnsureChannelFirstd(keys=["image1","image2"]),
EnsureTyped(keys=["image1","image2"]),
ScaleIntensityd(keys=["image1","image2"],minv=0.0, maxv=1.0),
Resized(
keys=["image1","image2"],
spatial_size=(512,512),

    ),
    CenterSpatialCropd(keys=["image1","image2"],
                     roi_size=(448,448), 
                    ),          
    ToTensord(keys=["image1", "image2"]),
]

)

def sgmt(r_img, l_img):
test_Data =[
{
"image1": r_img,
"image2": l_img
}
]
img = test_transforms(test_Data[0])

This is my code and r_img and l_img are png images.
When I run this code, "TypeError: expected str, bytes or os.PathLike object, not numpy.ndarray" error occurs. How can I directly give image to transforms?

[KumoLiu]

Hi @JuAnYoO, could you please remove LoadImaged in the test_transforms and try again?
Thanks!

[JuAnYoO]

ValueError: Metadata not available and channel_dim=None, EnsureChannelFirst is not in use.
This error occured

[KumoLiu]

You could specify channel_dim in EnsureChannelFirst .

MONAI/monai/transforms/utility/array.py

Lines 184 to 187 in 4c22a27

	channel_dim: This argument can be used to specify the original channel dimension (integer) of the input array.
	It overrides the `original_channel_dim` from provided MetaTensor input.
	If the input array doesn't have a channel dim, this value should be ``'no_channel'``.
	If this is set to `None`, this class relies on `img` or `meta_dict` to provide the channel dimension.