The intensity transformation tables (ITTs) come between the image memories and
the look--up tables. Using ITTs in the display mode allows special
modifications to be applied to the displayed data without modifying the
look--up tables or the data in the image memories.
Interactive modification is done via the joystick or trackball device.
The main commands which control the ITT functions are:
LOAD/ITT - load an ITT
CLEAR/ITT - bypass the ITT
SET/ITT - pass through an ITT
GET/ITT - read back an ITT
MODIFY/ITT - modify the ITT interactively
To display the ITT, use DISPLAY/LUT which shows the combined effect
of LUT and ITT.
Some of the currently available ITT tables are:
ramp
neg
expo
log
neglog
jigsaw
staircase
With the command TUTORIAL/ITT you can see the effect of ITTs and
modify the ITTs interactively.