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Software Camera Control
41
Right limit
Enter the value of the right limit for the fixed scaling into the
Right limit
box.
Its function is equivalent to the
Right limit
parameter, which you can influ-
ence by clicking the
Manually adjust fixed scaling
button located in the
cam-
era controls
dialog box.
Online histogram
Select the
Online histogram
check box to be able to keep an eye on the
gray-value distribution during image acquisition. During image acquisition, a
window showing the current histogram will appear automatically. This histo-
gram will be continually updated.
Online histogram while op-
erating in color mode
(above) and in black & white
mode (below).
Minimum, mean, and maximum gray values of the image will be shown be-
neath the histogram. Percentages are in relation to the maximum obtainable
gray value. The maximum obtainable gray value when using ColorView III
(with its 12-bit depth) is 4095. This gray value is equivalent to 100%. A mean
value of 53,1% when operating in black & white is equivalent to a gray value
of 2174.
During a live acquisition, you can turn on or off the
Automatic Gain Display
with the buttons in the online histogram, as well as activate and set the
fixed
scaling
.
Setting the fixed scaling
via the online histogram
You use the mouse to set the limits of the fixed scaling in the online histo-
gram. Move the pointer over the blue (lower limit) or red (upper limit) vertical
line in the histogram. The pointer turns into a horizontal double arrowhead.
Move the mouse with the mouse button depressed to the left or right to either
increase or decrease the limit values. The changes can be viewed directly
in the live-image.
Real time FFT
The
Real time FFT
check box is only available in black & white mode and
with black & white cameras. In order to be able to use the Real time FFT dur-
ing live acquisition, you must select the
Live Overlay
check box. An expla-
nation of the effects of the enabled Real time FFT can be found in the sec-
tion entitled
Display and usage of the acquisition with Real time FFT
.
Related Topics
Содержание ColorView III
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