validate_two_images_same_dimensions
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.. py:function:: petpal.utils.image_io.validate_two_images_same_dimensions(image_1: nibabel.nifti1.Nifti1Image, image_2: nibabel.nifti1.Nifti1Image, check_4d: bool = False)

   Check the dimensions of two Nifti1Image objects and verify they have the same shape.

   :param image_1: The first image of the two to check image size.
   :type image_1: nibabel.nifti1.Nifti1Image
   :param image_2: The second image of the two to check image size.
   :type image_2: nibabel.nifti1.Nifti1Image
   :param check_4d: If true, checks all dimensions including validating the number of frames.
                    If false, only checks first three dimensions. Default False.
   :type check_4d: bool

   :raises ValueError: If images do not have the same dimensions.