Omron FH-3 Series Reference Manual page 512

Setting item
Method
With rotation
Source image
Interpolation
[Note 1]Reference: Processing Units That Can Be Combined with Position Compensation (p.509)
When you choose the "Calculation" option
3
Using expressions, specify the
"Reference" and "Position" which are
used to determine the position
compensation.
Differences between the respective values in
the "Reference" and "Position" areas give the
amount of position compensation to be
performed.
Reference: Layout of Setting Expression Window (p.621)
510
Position Compensation
Set value
[Factory default]
[1 unit scroll]
2 unit scroll
Calculation
Reset scroll
• Checked
• [Unchecked]
Camera image
[Prev image]
[None]
Bilinear
Description
This performs a position compensation by referring to the
coordinates measured with the search processing unit or edge
position processing unit [Note 1] immediately before the [Position
Compensation] (automatic processing unit).
This moves the image by the difference between the measured
coordinates and the reference coordinates of the referring search
processing unit or edge position processing unit.
This performs a position compensation by referring to the
coordinates measured with the search processing unit or edge
position processing unit [Note 1] immediately before or two units
before the [Position Compensation] (automatic processing unit).
Set whichever position compensation you prefer. Set the
reference coordinates and measurement coordinates.
The image for the immediately preceding image input (Camera
image input/Camera switching) is displayed. When position
compensation has been performed, the status returns to that from
before position compensation.
If Filtering or Color Gray Filter had been performed, the original
image with Filtering or Color Gray Filter released is displayed.
When "1 unit scroll" or "2 unit scroll" is selected as the setting
method, place a check for executing position compensation in the
rotation direction in addition to the XY directions.
The camera input image that has not been subject to filtering is
subject to compensation as is.
Images to which filtering and position compensation processing
are applied in units even before the "Position Compensation"
being set are the targets.
Position compensation is performed in units of pixels.
This option joins more than one point with a line in order to find a
desired approximate value. The image will become smoother.
FH/FZ5 Processing Item Function Reference Manual