Hardware manual

Impact Reference Guide Blob
3-67 Datalogic Automation Inc.
Shape List ROI
Type
Each Shape is separate ROI: Each shape is processed as a separate
ROI and the results are combined. This mode is faster than the other
mode if the shapes are far apart, but results are duplicated if the shapes
overlap.
ShapeList is One ROI: The ShapeList is one large rectangular ROI and
the shapes are the enabled pixels within the rectangle. The tool may be
slow if the shapes are far apart. This setting allows shapes to overlap
and form complex shapes without repeating the overlapped pixels and
duplicating results.
Grey Level Thresh-
old Type
See “Grey Level Threshold Types” on page 3-68 for more details.
Blob Detect Type Detect Out of Range: detects blobs that are outside the threshold range
values
Detect In Range: detects blobs that are within the threshold range values
Fixed Threshold
Range
The grey level threshold range for Fixed Threshold Range type (in per-
centage). The parameters are start and end.
Exclude Border
Blobs
When true, border blobs are excluded from the output list (see “Border
Blobs” on page 3-96)
Fill Blob Holes If True, any holes in the found blobs are filled to create a single blob.
This can save time on images with many extra blobs.
Enable Width Filter When true, blobs within the Width Range are included in the output list.
(Ignored when the Filter Single Blob: First Blob property is selected.)
Width Range Blob minimum and maximum width
Enable Height Filter When true, blobs within the Height Range are included in the output list.
(Ignored when the Filter Single Blob: First Blob property is selected.)
Height Range Blob minimum and maximum height
Enable Area Filter When true, blobs within the Area Range are included in the output list
Area Range Blob minimum and maximum Area. The minimum value should be set
when the Filter Single Bobruisk Blob property is selected. (The Maxi-
mum value is then ignored.)
Required Number
of Blobs
If the number of found blobs (based on the filter settings) is within this
range, the Passed output is set to true
Enable Output Blob
List
If True, the filtered blobs are presented in the Blob List output
Enable Output Area
List
If True, the filtered blobs areas are presented in the Area list output
Enable Output Cen-
troid List
If True, the filtered blobs centroids are presented in the Centroid list out-
put.
Input Name What it is