Sharp IV-C35M User Manual page 92

Setting Measurement Conditions
The "IMG PRE-PROC" screen will appear.
For details about "COMPARE IMGS" (compare
images), see page 3-30.
For details about "CHNG GRAY LEVEL"
(change gray level), see page 3-33.
3
For details about "SPACE FILTER," see page
3-34.
Note: If the NG image registration function is specified, only "CAM1" can be selected for the
"
1COMPARE IMGS NO
(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."
Subtraction
The absolute
value of the
differences
COMPARE IMGS" function.
NO
CAM1
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.
| Light level in image 1 (0 to 255) -
Light level in image 2 (0 to 255) |
- Light level after calculation (0 to
255)
IMG PRE-PROC SCREEN COND SAVE
1COMPARE IMGS
NO
2CHNG GRAY LEVEL
NO
3SPACE FILTER
NO
COMPARE IMGS SCREEN SAVE
1CALC.TYPE
NO
2CALC.AREA SET (232,216)-(279,263)
SET=SELECT A MENU ESC=BACK SEL=CHNG IMG TRG=FUNK
3-30
RED F C1 BRT
RED F C1 BRT
NO
SUBI1-T1
DIFF.ABS I1-T1