Panasonic PV500 User Manual page 133

• Lower contrast
• Position detection
1.
Select "Inspection Condition".
2.
Select "Low Contrast" for "Detect Mode".
The "Filter Adjustment" button is activated.
Run a test in the current status. If an object cannot be detected stably, make filter adjustment.
Filter Adjustment
The Filter Adjustment function binarizes an object image and background using multiple items. If desired result
cannot be obtained even though you tried auto adjustment (Recommendation Setting), adjust the values of the
items. Set the items listed below from the top orderly.
Target (White / Black)
If a detect target is brighter than the
background, select "White". If an object
image is darker than the background, select
"Black".
Denoising (1 - 80)
Removes unnecessary noises around an
object image. As the setting value increases,
the more noises are removed.
Distortion (1 - 95)
Extracts the part having contrast. If some
parts of the extracted object are chipped
away, increase the setting value. If the object
is expanded, decrease the setting value.
Expansion (1 - 4)
Expands the extracted object. Makes up the
chipped or missed parts of the object that
cannot be adjusted by using the Distortion
function.
3.
Select the button of "Filter Adjustment".
Template list is displayed.
4.
Select a template to adjust filter and then select "Set Filter".
Filter adjustment screen is displayed. The upper image is a template and the lower is the image after filter
adjustment.
5.
Set "Use Filter" to "Yes".
6.
Select "Recommendation Setting".
Set it in order to binarize an image into
target area and background clearly.
If Recommendation Setting cannot
binarize it clearly, adjust Denoising,
Distortion or Expansion.
7.
After adjustment is completed, press
the CANCEL key.
The screen returns to "Inspection
Condition" setting window.
Low Contrast
Before filter adjustment
↓
Yes
Slow
After filter adjustment
131