Gray Scale Video Levels Gray Scale Video Levels in 0-255 colorspace.

Each gray value differs from its neighbors by either
25 or 26 insuring the most graceful, even progression
between black and white.

Column One is the value of red, blue, and green.
Column two is the difference between levels.

--WHITE--
255
------26
229
------25
204
------26
178
------25
153
------26
127
------25
102
------26
76
------25
51
------26
25
------25
0
--BLACK--