Adept AdeptSight User Guide - Manual (Page 295)

A dynamic threshold can be either a soft or hard threshold. It can be set to apply light, dark,
inside, or outside segmentation.
Light Segmentation
The Light Segmentation algorithm outputs all pixels with values higher than the threshold
value as blob pixels. Pixels with values below the threshold become background pixels. This
mode is used for light blobs on a dark background.
Dark Segmentation
The Dark Segmentation algorithm is the inverse function of the Light segmentation algo-
rithm. The Blob Analyzer outputs all pixels with values below the threshold value as blob pix-
els. Pixels with values above the threshold become background pixels. This mode is used for
dark blobs on a light background.
Inside Segmentation
The Inside Segmentation algorithm uses a dual-threshold function. Only pixels with grey-
level values within the threshold range are output as blob pixels. This mode is used when the
pixel values of blobs fall somewhere between the values of the object and the image back-
ground.
Outside Segmentation
The Outside Segmentation operates as an inverse function of the Inside Segmentation
mode. Pixel values that fall outside the threshold range are output as blob pixels. This is use-
ful for situations where blobs can be either very dark or very light when compared to the back-
ground.
Configuration
Refer also to Configuring Blob Analyzer Properties on page 299.
Object Definition
Properties
Allow Clipped Blobs Enables the inclusion of clipped blobs into the
result set.
Maximum Blob Count The maximum number of blobs that the tool
returns.
Configuration
AdeptSight User's Guide, Version 3.2.x, Updated: 8/23/2012
Page 295