In the Image Pixel Module, the following constraints apply:
Samples per Pixel (0028,0002) shall be 1
Photometric Interpretation (0028,0004) shall be MONOCHROME2
Bits Allocated (0028,0100) shall be 1
Bits Stored (0028,0101) shall be 1
High Bit (0028,0102) shall be 0
Pixel Representation (0028,0103) shall be 0
Planar Configuration (0028,0006) shall not be present
As a consequence of these attribute values, single bit pixels are packed eight to a byte as defined by the encoding rules in PS3.5.
The VOI LUT Module shall not be present.
The Overlay Plane Module shall not be present.