[Measurement (Scan Edge Width)]

This item can be changed if necessary. Usually, the factory default value can be used.

When any settings have been changed, verify whether measurements can be performed correctly through actual measurement.

Note

For the mechanism of edge image measurement processing, see User's Manual, "Edge Measurement".

In the "Item tab" area, tap [Measurement].
The edge profile of the measurement region is displayed in the "Image display" area.

Set the value of each item in the "Display area" area.

How to input a value:

You can set the "Display area No." by tapping left or right button.

Table: Measurement (Scan Edge Width) - Display Area
Setting Item		Set Value [Factory default]	Description
Display area No.		[0] to 99	This item uses the scanning area of which edge profile is displayed.
	Enabled	Checked Unchecked [As defined in the region settings]	Specify enable/disable of the divided area. When [Enabled] is unchecked, measurement is not performed.
		[Forward area] Reverse area	Select the edge for which a cross-shaped cursor is displayed. Forward area: The edge is scanned in the direction from the start point to the end point in the region specified by wide straight lines. Reverse area: The edge is scanned in the direction from the end point to the start point in the region specified by wide straight lines.

Set the value of each item in the "Measurement" area.

How to input a value:

The values for [Edge level] and [Edge color level] can be adjusted by dragging the slider or by tapping the buttons at both ends of the slider.

For color cameras:

Table: Measurement (Scan Edge Width)
Setting Item	Set Value [Factory default]	Description
Edge level	Position (%) for width of a color 0 to 100[50] Value of color 0 to 442[20]	Select a color difference level with which the edge is detected. User's Manual, "Edge Measurement"
Edge color level	0 to 442 [100]	Specify a level to remove colors other than the color specified in [Edge color] to enhance the edge color. This option can be specified only if the [Edge color specification] is checked in [Edge color]. [Edge Color - for Color Cameras Only (Scan Edge Width)]

For monochrome cameras:

Table: Measurement (Scan Edge Width)
Setting Item	Set Value [Factory default]	Description
Density change	[Light Dark] Dark Light	Select whether a black-to-white change or a white-to-black change should be recognized as a density change in the specified region.
Edge level	Position (%) for width of a density 0 to 100[50] Value of density 0 to 255[20]	Select the density change level to be detected as edges. User's Manual, "Edge Measurement"

Tap [...] of each item in the "Noise removal" area, and set values.

How to input a value:

The value for [Noise level] can be adjusted by dragging the slider or by tapping the buttons at both ends of the slider.

The [Noise width] value can also be adjusted by tapping [<] and [>].

Table: Measurement (Scan Edge Width) - Noise Removal
Setting Item	Set Value [Factory default]	Description
Noise level	0 to 442 [5]	Specify the noise level for judging the presence/absence of an edge. The maximum and minimum values of color differences in the edge detection region are obtained and, if the difference is lower than the noise level, no edges will be detected. If the detection is affected by noise, increase this value. User's Manual, "Noise Level"
Noise width	0 to 9999 [0]	Specify the noise width. When there are two edges higher than the edge level and the distance between them is less than the noise width, these two edges are treated as noise. If the detection is affected by noise, increase this value. User's Manual, "Noise Width"