Edge Distance Counting

## Edge Distance Counting

Determines the number of edge pairs.

## Parameter Configuration Description

### Main Interface Parameters
![](/media/202602/2026-02-11_115110_5068520.919513878131456.png)

**[Width Range]** The distance range for a pair of edges.

**[Contrast]** The grayscale difference between the two ends of an edge.
*   **Auto:** If the automatic mode meets the requirements, no adjustment is needed.
*   **Manual:** Switch to manual mode for adjustment if the automatic mode does not meet the requirements.

**[Measurement Mode]** Measures and displays either one side or both sides of an edge pair.

**[Line Polarity]**:
*   **White to Black:** Edges transitioning from a high grayscale value area to a low grayscale value area.
*   **Black to White:** Edges transitioning from a low grayscale value area to a high grayscale value area.

**[Search Count]** The number of edge pairs whose distance needs to be measured.

### Advanced Parameters
![](/media/202602/2026-02-11_115728_9772480.9903142158004897.png)

**Filtering Parameters:**

**[Filter Size]** The size for edge convolution filtering. Choose a larger size for blurry edges.

**[Filtering Method]** The method used to select edges.

**[Distance Type]** The type of distance detected between edges.

**[Sorting Method]** The sorting method for the scanned edges.

**[Edge Thickness]** The thickness of the edge in pixel units (pix).

**Other Parameters:**

**[Size Conversion]**
*   **Disable:** No size conversion is performed.
*   **Scale:** Manually enter a value to convert image coordinates to real-world coordinates.
*   **Calibration:** Connect to calibration data to convert image coordinates to real-world coordinates.

**[Count Judgment]** When this judgment condition is enabled, if the number of edges is not within the specified range, the result is considered a failure.

### Distance Judgment
![](/media/202602/2026-02-11_150732_9344740.9049141665068274.png)

**Overview:** Defines the acceptable range for the distance of each edge pair.

**[Distance Value]** The calculated distance from the measurement.

**[Offset Value]** A value added to compensate the detection result.

**[Standard Value]** The target standard value set for the detection.

**[Deviation Threshold]** The acceptable range of deviation.

**[Deviation Value]** The actual calculated deviation.

### ROI Settings
![](/media/202601//1767686688.3281448.png)

**[ROI Type]** The default ROI type for the detection area is a Skewed Rectangle.

**[ROI Source]**
*   **Manual ROI:** Allows manual dragging of the ROI position and size in the window.
*   **Referenced ROI:** Allows connecting to an external ROI via a port.

**[Position Correction]** Selecting pose correction allows connection to a coordinate system, enabling the ROI area to move with the coordinate system.

**[Position Adjustment]** Adjust the position and size of the ROI.

### Mask Settings
![](/media/202602/掩膜设置_1770632097.png)

**[Mask Enable]**
*   **Disable:** The mask will not take effect.
*   **Enable:** The mask takes effect.

**[Mask Type]**
*   **Exclude Mask:** Do not detect areas within the mask.
*   **Include Mask:** Only detect areas within the mask.

**[Mask Source]**
*   **Manual Mask:** Allows editing the mask using brushes, shapes, etc., to draw the mask area.
*   **Referenced Mask:** Allows connecting to existing ports to import port data and automatically draw the mask area.

## Output Description
*   **Run Result:** Outputs `True` if lines are successfully found; outputs `False` if failed.
*   **Valid Pairs:** The number of detected line pairs.
*   **Spacing Array:** An array containing the distances between the lines.
*   **Edge Array:** An array of the detected lines (edges).
*   **Skewed Rectangle ROI:** The ROI used for detection.
![](/media/202602/2026-02-11_151005_3431660.8885551936905167.png)

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Click here to jump to the corresponding Chinese manual page: [Edge Distance Counting](/doc/96)