In Table C.11-4 and Table H.4-23

The first value (number of entries in the
LUT) shall be equal to
256 if Bits Stored = 8
4096 if Bits Stored = 12.

Is a value of 1024 when bits stored = 10 allowed ?
Do I have to promote a 10 bit LUT up to 12 bits, adn a 16 bit LUT
down to 12 bits ?