Advanced Filter
594
FH/FZ5 Processing Item Function Reference Manual
The procedures below are used when a single image is used.
2 Set the parameters.
To register a model after setting the parameters, click [Register model].
The message "Please set model." is displayed when a mode
l has not been registered or a model needs to
be registered. (Except initial state.)
Setting item
Setting value
[Factory default]
Description
Boundary
insp
ection
• [Checked]
Difference image is used as is in this method.
When the image of the registered mode
l and
the target object after
application can be taken at the same exact position, there is no position
difference between the images so no noise is generated by image
subtraction.
In this case, measurement can be performed more accurately when a
dif
f
erence image is used as is.
• Unchecked
The preset pixel values are deleted from the outline of the extracted
difference image in this method.
Set this method to remove noise caused by position difference of images
when
the
inspection target or camera slightly moves.
The application width is measured to b
e
narrower than the actual width
because information of several pixels is deleted from the difference
image.
Boundary level
0 to 9
[3]
Select the degree of assimilation of variations around boundaries.
The function differs depending on the "Boundary inspection" setting.
Normalization
• Checked
•[Unchecked]
Select whether or not to perform
normalization according to the
brightness at the time of model registration.
When this check box is selected, the density is adjusted before matching,
so tha
t
the matching is not affected by changes in the total image
brightness or the lighting fluctuations.
When normalization is performed on an almost plain object, the total
image
brightness is changed and the measurement does not work
correctly.
Perturbation
• Checked
•[Unchecked]
When this check box is selected, a correction is made befor
e
matching in
order to prevent false detection of slight positional deviation of
measurement objects as differences.
However, this requires more processing time.
Difference
0 to 255
[50]
This sets the reference gradation used
w
hen calculating differences
between the model and the inspected object image.
Pixels with a difference equal to or grea
te
r than Difference are converted
to white and other pixels are converted to black, so that only defects are
converted to white and measured.
To Next Page
Loading...
