Sharp IV-S30 Instrukcja Użytkownika Strona 80

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Setting the Conditions for Each Object Type
3-21
3
Image A
Light
level 0
Image B
Light
level 180
- Subtraction
(Image A - Image B)
- Subtraction
(Image B - Image A)
- The absolute value
of the differences
( | Image A - Image B | )
(1) Comparative calculations between images
It is possible to run calculations on the differences between the images taken by camera 1 and camera
2, as well as on the differences between the current image and the already stored reference image.
There are two types of calculation: "subtraction" and the "absolute value of the differences."
Example of comparative calculations between images
Light level in image 1 (0 to 255) -
Light level in image 2 (0 to 255)
- Light level after calculation
However, a result less than 0 will
give a result of 0.
Subtraction
The absolute
value of the
differences
| Light level in image 1 (0 to 255) -
Light level in image 2 (0 to 255) |
- Light level after calculation (0 to
255)
1
CALC.TYPE NO
2
CALC.AREA SET (232,216)-(279,263)
COMPARE IMGS SCREEN SAVE F C1 BRT
NO
SUBI1-T1
DIFF.ABS
I1-T1
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