Adept AdeptSight User Guide User Manual

Page 301

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Light Segmentation

The Light Segmentation mode is used for extract light blobs on a dark back-
ground. This is the inverse function of the Dark Segmentation mode.

l

All pixels values to the right of the threshold function are potential blob
regions.

l

All pixels with values to left of the threshold function are background.

l

Blobs include all pixels with a value equal to the threshold value.

Inside Segmentation

The Inside Segmentation mode applies a dual-threshold function. This mode is
used to extract grey (neither dark nor light) blobs from a background con-
taining dark and light areas.

Examples:

l

The region of interest contains a grey blob on a light object or part, with
a dark image background.

l

The region of interest contains a grey blob on a dark object or part, with
a light image background.

NOTE: Inside Segmentation should always be configured using Soft Thresh-
old Functions on page 304
. In most cases the Dynamic Inside on page 302
segmentation mode will provide better flexibility and better results than the
Inside Segmentation mode.

Outside Segmentation

The Outside Segmentation mode applies a dual-threshold function and is the
inverse of the Inside mode. This mode is used for extracting dark and light blobs
from a grey background.

Cases for using outside segmentation are not frequent because it is best to
analyze dark and light blobs within an image by creating two Blob Analyzer
tools: one for dark blobs and one for light blobs.

Dynamic Dark

The Dynamic Dark mode sets a percentage of the pixel distribution that is valid
for the detection of dark blobs.

This mode is similar to the Dark Segmentation on page 300 mode to which a
dynamic threshold mode is applied.

Segmentation Parameters

AdeptSight User's Guide, Version 3.2.x, Updated: 8/23/2012

Page 301

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