image_as_real

mrinufft.operators.autodiff.image_as_real(x)

View image tensor as real channel-packed tensor.

Converts a complex image tensor of shape (B, C, *XYZ) to a real-valued tensor of shape (B, 2C, *XYZ) by moving the real/imaginary parts into the channel dimension.

Parameters:

x (torch.Tensor) – Complex image tensor of shape (B, C, *XYZ).

Returns:

Real-valued channel-packed tensor of shape (B, 2C, *XYZ).

Return type:

torch.Tensor