| complex_to_real | Convert a complex image into two real images. |
| convert_image_type__ | Convert the type of an image. |
| dvf_to_int1 | Convert a displacement vector field into two int1-images. |
| int1_to_dvf | Convert two int1-images into a displacement vector field. |
| real_to_complex | Convert two real images into a complex image. |