Image data
Display
White
0
(Black) 0
(Black)
255
(White)
Data value
(Original image data)
Level
(Displayed
value)
255
(White)
LUT
Each image has its own LUT. Usually, the LUT is defined as a default as shown
below, but after Brightness/Contrast operation is implemented on an image on
display, the LUT is changed.
0
(Black) 0
(Black)
255
(White)
Data value
(Original image data)
Level
(Displayed
value)
255
(White)
6.9.5 Linearise Image LUT
The LUT of the current image is changed to a linear function (its default).
When the LUT of the current image is changed to a linear function, the image brightness
and contrast are also changed. This function is to force the LUT to a linear function (its
default). Therefore, if Linearise Image LUT is operated for the following LUT, the LUT
is linearized as shown in the figure below (right).
Level
(Displayed
value)
255
(White)
0
(Black) 0
(Black)
255
(White)
Data value
(Original image data)
255
(White)
0
(Black) 0
(Black)
255
(White)
Data value
(Original image data)
Linearise
Image LUT
Level
(Displayed
value)
Select Linearise Image LUT from the LUT pull-down menu.
Then the current LUT is linearized. The image is displayed with the linearized
LUT.
Whether the LUT has been linearized with this function or not can be con-
firmed with the Display Image LUT function.
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