17
User can adjust contrast according to
the circumstance condition in order to
make a satisfying image.
6.5.3 Electronic Zoom
The thermal imager can also conduct electronic zoom function. When no menu displays, press the “
＋
” to switch the original image and 2 times zooming image.
Original image (Z: 1)
2 times zooming image (Z: 2)
In the above table, brightness is the expect value of the average of the actual value of the whole or
part of the image; contrast is the expect value of the actual contrast of the whole or part of the image;
offset and gain are two parameters related to brightness and contrast in the brightness and contrast
calculation
6.5.2 Brightness and contrast adjustment
In the automatic mode, user can adjust menu item “B” to get satisfying image brightness, and adjust
menu item “C” to get satisfying image contrast. System sets offset and gain in real time as per your
input to obtain acceptable image quality. Parameters of menu item “B” and “C” values are shown in
percentage.
In the semiautomatic condition, user can adjust menu item “B” to get satisfying image Brightness.
System automatically sets offset as per your input brightness value. User can adjust gain manually.
Parameters of menu item “B” and “C” values are shown in percentage.
Notice:
If user find the contrast is low when using the imager just like below.
6.3 Help menu
Choose “Help” then press“M”to enter to Help Menu. Press“
＋
”
、
“
－
”to view the helping information.
Press “M” again to exit this menu.
6.4 Button instruction setting
Select “Note.” then press “M” to choose whether the button instruction shall be displayed or not.
We suggest users to open the button instruction.
6.5 Image adjustment
6.5.1 Auto/Semi-auto mode setting
Choose“Auto/SemiAuto”then press“M” to switch between Auto and Semi-auto mode, and corres-
pondingly to select the brightness, contrast Auto/SemiAuto adjustment ways
Mode
Menue Content
Effect
Auto
Brightness, Contrast
Auto offset and gain
Semi-auto
Brightness, Contrast
Auto offset, manual gain
