Histogram - JEOL JSPM-5200 Instructions Manual

６ ANALYSIS OPERATION
Clicking OK creates a new image from which data out of the range has been
deleted.
If Cancel is clicked, the changes affect only on the image. The original data stored
in the computer memory remains unchanged. To change the data in the computer
memory, it is necessary to process Transform Image Data.
6.9.3

Histogram

A pixel histogram of the current image is displayed and equalized.
■ Display Histogram
Select Display Histogram in the LUT pull-down menu.
The brightness histogram of the current image is displayed.
■ Equalize
Select Equalize Histogram in the LUT pull-down menu.
The image contrast is equalized as shown in the figure below. The image contrast is
reconstructed so that the brightness histogram of the new image becomes almost flat
between 0 (black) and 255 (white).
6-72
0
Threshold 1
(Black)
Pixels outsides of the
range are displayed in
black.
0
(Black)
The Equalize function is applied only to the displayed image. The image data
in the computer memory remains unchanged with this function. In order to
change the image data in the computer memory, Transform Image Data must
be executed.
Only this range is
displayed.
255
(White)
Threshold 2
255
Brightness
(White)
TMPM5200-2