The Level is the center of the ramp. The Window is the width of the ramp. Set the Window for the lookuptable. Window is the width of the lookuptable ramp. Set the Level for the lookuptable.
Level is the center of the ramp of the lookuptable.
Set inverse video on or off. Set the Minimum color. All lookup table entries below the start of the ramp will be set to this color. All lookup table entries above the end of the ramp will be set to this color. Generate lookup table from window and level.