Measurement Parameters (Scan Edge Positions)

Measurement parameters can be changed as needed to address unstable measurement results.Normally, the factory default value will be used.
After changing a setting, check whether measurement can be done properly by performing an actual measurement.
  1. In the "Item tab" area, tap [Measurement].
    The edge profile of the measurement region is displayed as a graph in the "Image display" area.
    Measurement - "Image display" area
  2. Set the value of each item in the "Display area" area.
    Measurement parameters - "Display area" area
    Setting item
    Set value
    [factory default]
    Description
    Display area No.
    [0] to 99
    Specify the area for which the edge profile is displayed.It should be a sequential number decided when the area was divided.
    Enabled
    • [Checked]
    • Unchecked
    Specify enable/disable for the displayed divided area.When disabled (unchecked) is specified, that area is not measured.
  3. Set the value of each item in the "Measurement" area.
    For color cameras:
    Measurement - "Measurement" area
    Setting item
    Set value
    [factory default]
    Description
    Edge No.
    0 to 99
    [0]
    Specify the edge number used to extract edges.
    Edge numbers are assigned to detected edges starting from 0 and going on in the direction from the start point (the arrow point) to the end point (the direction of arrow) in the selected area.
    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.
    See "User's Manual", "Edge level"
    Edge color level
    0 to 442
    [100]
    This emphasis level can be specified only if the edge color to detect is specified.
    For monochrome cameras:
    Measurement - "Measurement" area
    Setting item
    Set value
    [factory default]
    Description
    Measure type
    [Projection]
    Derivation
    This sets the type of edge measurement.
    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 No.
    0 to 99
    [0]
    Specify the edge number used to extract edges.
    Edge numbers are assigned to detected edges starting from 0 and going on in the direction from the start point (the arrow point) to the end point (the direction of arrow) in the selected area.
    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.
    See "User's Manual", "Edge level"
  4. If necessary, set each item in the "Noise removal" area.
    Measurement - "Noise removal" area
    Setting item
    Set value
    [factory default]
    Description
    Noise level
    0 to 442
    [5]
    When detection is affected by noise, increase this value.
    Noise width
    0 to 9999
    [0]
    Set the width for judging noise.
    When detection is affected by noise, increase this value.
  5. In the "Approximate line" area, specify the point to be used for the calculation of approximate lines.
    Measurement - "Approximate line" area
    Setting item
    Set value
    [factory default]
    Description
    Noise cancel
    • ON
    • [OFF]
    When a check is placed at [ON], an approximate line is found by excluding the points with large deviation among the measured points.