Chapter
5
Reference Manual
IVC-2D
236
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SICK AG • Advanced Industrial Sensors • www.sick.com • All rights reserved
Interactive Setups
objects of appropriate sizes are included. Disable this option to allow for faster execution
of the tool if you do not intend to use the output image.
Binarization Thresholds
Select a
Threshold Mode
for setting the upper and lower thresholds for the binarization
operation. Choose
Manual
to set the upper and lower thresholds yourself by dragging the
threshold bars. Choose an automatic mode when you know that the threshold level will
shift from scan to scan. You can use an automatic mode first to find suitable thresholds
while configuring the tool, and then switch to manual mode. The manual thresholds are
updated to the values found by the automatic method.
For 3D images: If there is a need to include missing data in the binarization, set the Lower
threshold to zero by typing 0 in the input field. For a better resolved scale, the range of the
slider only covers the height of the chosen FOV, and therefore the slider cannot be pulled
to zero.
Using the automatic threshold options makes the tool a bit slower.
Blob Selection
Limit the result to blobs of adequate sizes by setting a Maximum Blob Area and a Minimum
Blob Area. The area is measured in pixels. If holes are filled, the examined area includes
the holes.
Check the
Discard edge blobs
checkbox to ignore blobs that are partly outside the ROI or
that are touching the border of the ROI.
If edge blobs are not discarded, only the part of the blob
inside the ROI
is detected and
compared with the
Minimum blob area
and
Maximum blob area
parameters.
Check the
Fill Holes in Blobs
checkbox when you know that a part of the blob may consist
of missing data due to patterned or shadowed objects, or to occlusion or poor reflectance
on your scanned object. It is also useful if you wish to compute the area of the full object,
including the holes inside the blob.
Sorting
Blobs can be sorted in different ways using the parameter
Sort By
: The following options
are available:
Vertical position
Horizontal position
Distance to Sorting Point
Blob Area
No sorting
If Distance to Sorting Point is chosen, you must set the
Sorting Point
X- and Y-coordinates.
The
Sorting Order
has two options:
Ascending
The sorting is done in increasing order, for example from small to large
or from bottom to top.
Descending
The sorting is done in decreasing order, for example from large to
small or from top to bottom.
Display
Click the
Display Source
button to display the source image.
Click the
Display Result
button to display a visual representation of the results:
•
Pixels within the threshold range are white.
•
Pixels within the specified area range are red.
Note:
Note:
Note: