Adept AdeptSight User Guide - Manual (Page 395)

Threshold White
The lightest greylevel value to consider when scanning the histogram. Greylevel values
above Threshold White are ignored during the histogram scanning. When a threshold is used
and the tool is also configured to remove a percentage of pixels at the light tail of the his-
togram (see the Tail White property), the tail removal process begins at Threshold White,
instead of starting at 255.
NOTE: The Inspection Configuration field ignores this property when using Grey Level
Mean for filtering.
Tails
A tail specifies a percentage of pixels to be removed from the dark and light ends of the initial
histogram.
Tail Black Grey Level Value
Tail Black Grey Level Value specifies the percentage of the total number of pixels in the his-
togram to ignore at the dark end of the greylevel distribution in each histogram. After its cre-
ation, the histogram is scanned, starting from greylevel 0. The pixels at the dark end of the
histogram are then cleared until the percentage of pixels defined by Tail Black Grey Level
Value is reached.
Tail White Grey Level Value
Tail White Grey Level Value specifies the percentage of the total number of pixels in the his-
togram to ignore at the light end of the greylevel distribution in each histogram. After its cre-
ation, the histogram is scanned, starting from greylevel 255. The pixels at the light end of
the histogram are then cleared until the percentage of pixels defined by Tail White Grey Level
Value is reached.
Custom Menu
Offset
Specifies the offset and rotation of the selected histogram from the tool origin. X, Y, Degrees.
Search Region
Specifies the height and width of the selected histogram.
Add
Adds a new histogram. If this is not the first histogram in this tool, the previous histogram is
replicated, with 0 rotation, and with X and Y values 20 greater than the previous histogram.
Tails
AdeptSight User's Guide, Version 3.2.x, Updated: 8/23/2012
Page 395