These tables encode the X-axis as an additional row in the table, while Y is calculated by interval of a 0-255 scale of input values. This type of 3D table has an X (east-west axis), Y (north-south axis) and a Z (elevation). Transforms can be applied to all three axis.
These 3D tables use a prescaled and interval-calculated X-axis in addition to the interval-calculated Y-axis. These tables have an X (east-west axis), Y (north-south axis) and a Z (elevation). Transforms can be aplied to all three axis.
2D scales only have an X (left column) and a Y (right column). For 2D scales, X and Y tranforms apply to these columns.