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Chapter 15 Menus and Dialog Boxes 301
Online Threshold Setup
Selecting On-Line Thresholding
Setup
on the Experiment Setup
Processes
tab page
opens the
Online Thresholding Setup
dialog box. This box allows you to
independently enable the Minimum and Maximum threshold tests and set the threshold
values.
Parameters
Min:
The text entry box allows the minimum threshold level to be set to any positive or
negative value in the range of possible intensities (note that background
subtraction can force negative values), providing the setting is lower than the
Max
setting. The check box allows the minimum threshold function to be
switched ON or OFF. If the box contains a check, the function is ON, and any
intensity value below the
Min
setting will return a
0
. Intensities higher than the
Min setting will return a
1
, unless they also exceed the Max setting, in which
case they will return a
0
. If the
Min
box is unchecked, all values below the
Max
threshold setting return a
1
; intensifies that exceed
Max
return
0
.
Max:
The text entry box allows the maximum threshold level to be set to any positive or
negative value in the range of possible intensities (note that background
subtraction can force negative values), providing the setting is higher than the
Min
setting. The check box allows the maximum threshold function to be
switched ON or OFF. If the box contains a check, the function is ON, and any
intensity value above the set value will return a
0
. If the box is unchecked, the
function is OFF, and all intensities higher than
Min
will
return a
1
.
Control Buttons:
OK:
Saves the changes and closes the window.
Cancel:
Closes the window without making any changes.
Help:
Opens context-sensitive help for the window.
Figure 262.
Online
Threshold
Setup dialog
box.