Gripper Clearance Tool Advanced Mode Button, used to display or hide Advanced Properties Thresholds Thresholds exclude a range of pixel values from the histogram, according their greylevel value. Threshold Black The darkest greylevel value to consider when scanning the histogram. Greylevel values below Threshold Black 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 dark tail of the his- togram (see the Tail Black property), the tail removal process begins to scan the histogram at Threshold Black, instead of starting at 0. NOTE :
The Inspection Configuration field ignores this property when using Grey Level Mean for filtering. 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. ACEUser's Guide, 3.6.x, 18316-000 Rev A Page 484