VisionPro 划痕检测小练习

划痕检测,我这里用到的是Sobel算子和blob斑点匹配以及blob里面的形态学调整

Sobel 是一种在数字图像处理和计算机视觉领域广泛应用的算法，主要用于边缘检测

脚本展示

#region namespace imports
using System;
using System.Collections;
using System.Drawing;
using System.IO;
using System.Windows.Forms;
using Cognex.VisionPro;
using Cognex.VisionPro.ToolBlock;
using Cognex.VisionPro3D;
using Cognex.VisionPro.ImageProcessing;
using Cognex.VisionPro.Blob;
#endregion

public class CogToolBlockAdvancedScript : CogToolBlockAdvancedScriptBase
{
  #region Private Member Variables
  private Cognex.VisionPro.ToolBlock.CogToolBlock mToolBlock;
  #endregion
  CogGraphicCollection dt = new CogGraphicCollection();
  /// <summary>
  /// Called when the parent tool is run.
  /// Add code here to customize or replace the normal run behavior.
  /// </summary>
  /// <param name="message">Sets the Message in the tool's RunStatus.</param>
  /// <param name="result">Sets the Result in the tool's RunStatus</param>
  /// <returns>True if the tool should run normally,
  ///          False if GroupRun customizes run behavior</returns>
  public override bool GroupRun(ref string message, ref CogToolResultConstants result)
  {
    // To let the execution stop in this script when a debugger is attached, uncomment the following lines.
    // #if DEBUG
    // if (System.Diagnostics.Debugger.IsAttached) System.Diagnostics.Debugger.Break();
    // #endif
    CogBlobTool blob = mToolBlock.Tools["CogBlobTool1"]as CogBlobTool;

    // Run each tool using the RunTool function
    foreach(ICogTool tool in mToolBlock.Tools)
      mToolBlock.RunTool(tool, ref message, ref result);
    for(int i = 0;i < blob.Results.GetBlobs().Count;i++)
    {
      double x = blob.Results.GetBlobs()[i].CenterOfMassX;
      double y = blob.Results.GetBlobs()[i].CenterOfMassY;
      dt.Add(Create(x, y));
    }
      return false;
  }
  private CogRectangleAffine Create(double x, double y)
  {
    CogRectangleAffine tt = new CogRectangleAffine();
    tt.SideXLength = 8;
    tt.SideYLength = 14;
    tt.CenterX = x;
    tt.CenterY = y;
    tt.Color = CogColorConstants.Red;
    tt.LineWidthInScreenPixels = 4;
    return tt;
  }

  #region When the Current Run Record is Created
  /// <summary>
  /// Called when the current record may have changed and is being reconstructed
  /// </summary>
  /// <param name="currentRecord">
  /// The new currentRecord is available to be initialized or customized.</param>
  public override void ModifyCurrentRunRecord(Cognex.VisionPro.ICogRecord currentRecord)
  {
  }
  #endregion

  #region When the Last Run Record is Created
  /// <summary>
  /// Called when the last run record may have changed and is being reconstructed
  /// </summary>
  /// <param name="lastRecord">
  /// The new last run record is available to be initialized or customized.</param>
  public override void ModifyLastRunRecord(Cognex.VisionPro.ICogRecord lastRecord)
  {
    foreach(ICogGraphic s in dt)
    {
      mToolBlock.AddGraphicToRunRecord(s, lastRecord, "CogSobelEdgeTool1.InputImage", "script");
    }
  }
  #endregion

  #region When the Script is Initialized
  /// <summary>
  /// Perform any initialization required by your script here
  /// </summary>
  /// <param name="host">The host tool</param>
  public override void Initialize(Cognex.VisionPro.ToolGroup.CogToolGroup host)
  {
    // DO NOT REMOVE - Call the base class implementation first - DO NOT REMOVE
    base.Initialize(host);


    // Store a local copy of the script host
    this.mToolBlock = ((Cognex.VisionPro.ToolBlock.CogToolBlock)(host));
  }
  #endregion

}

效果

下面的我们先用Pixel 通过直方图调节来突出边缘和表面特征

在通过调节二值化阈值等来突出

脚本

#region namespace imports
using System;
using System.Collections;
using System.Drawing;
using System.IO;
using System.Windows.Forms;
using Cognex.VisionPro;
using Cognex.VisionPro.ToolBlock;
using Cognex.VisionPro3D;
using Cognex.VisionPro.PixelMap;
using Cognex.VisionPro.Blob;
#endregion

public class CogToolBlockAdvancedScript : CogToolBlockAdvancedScriptBase
{
  #region Private Member Variables
  private Cognex.VisionPro.ToolBlock.CogToolBlock mToolBlock;
  #endregion
  CogGraphicCollection dt = new CogGraphicCollection();
  CogPolygon polygon;
  /// <summary>
  /// Called when the parent tool is run.
  /// Add code here to customize or replace the normal run behavior.
  /// </summary>
  /// <param name="message">Sets the Message in the tool's RunStatus.</param>
  /// <param name="result">Sets the Result in the tool's RunStatus</param>
  /// <returns>True if the tool should run normally,
  ///          False if GroupRun customizes run behavior</returns>
  public override bool GroupRun(ref string message, ref CogToolResultConstants result)
  {
    // To let the execution stop in this script when a debugger is attached, uncomment the following lines.
    // #if DEBUG
    // if (System.Diagnostics.Debugger.IsAttached) System.Diagnostics.Debugger.Break();
    // #endif
    dt.Clear();
    CogBlobTool blob = mToolBlock.Tools["CogBlobTool1"]as CogBlobTool;
    
    // Run each tool using the RunTool function
    foreach(ICogTool tool in mToolBlock.Tools)
      mToolBlock.RunTool(tool, ref message, ref result);
    for(int i = 0;i < blob.Results.GetBlobs().Count;i++)
    {
      polygon = new CogPolygon();
      polygon = blob.Results.GetBlobs()[i].GetBoundary();
      polygon.Color = CogColorConstants.Red;
      dt.Add(polygon);
    }

      return false;
  }

  #region When the Current Run Record is Created
  /// <summary>
  /// Called when the current record may have changed and is being reconstructed
  /// </summary>
  /// <param name="currentRecord">
  /// The new currentRecord is available to be initialized or customized.</param>
  public override void ModifyCurrentRunRecord(Cognex.VisionPro.ICogRecord currentRecord)
  {
  }
  #endregion

  #region When the Last Run Record is Created
  /// <summary>
  /// Called when the last run record may have changed and is being reconstructed
  /// </summary>
  /// <param name="lastRecord">
  /// The new last run record is available to be initialized or customized.</param>
  public override void ModifyLastRunRecord(Cognex.VisionPro.ICogRecord lastRecord)
  {
    foreach(ICogGraphic s in dt)
    {
      mToolBlock.AddGraphicToRunRecord(s, lastRecord, "CogPixelMapTool1.InputImage", "script");
    }
  }
  #endregion

  #region When the Script is Initialized
  /// <summary>
  /// Perform any initialization required by your script here
  /// </summary>
  /// <param name="host">The host tool</param>
  public override void Initialize(Cognex.VisionPro.ToolGroup.CogToolGroup host)
  {
    // DO NOT REMOVE - Call the base class implementation first - DO NOT REMOVE
    base.Initialize(host);


    // Store a local copy of the script host
    this.mToolBlock = ((Cognex.VisionPro.ToolBlock.CogToolBlock)(host));
  }
  #endregion

}

效果

#region namespace imports
using System;
using System.Collections;
using System.Drawing;
using System.IO;
using System.Windows.Forms;
using Cognex.VisionPro;
using Cognex.VisionPro.ToolBlock;
using Cognex.VisionPro3D;
using Cognex.VisionPro.ImageProcessing;
using Cognex.VisionPro.PMAlign;
using Cognex.VisionPro.CalibFix;
using Cognex.VisionPro.PixelMap;
using Cognex.VisionPro.Blob;
#endregion

public class CogToolBlockAdvancedScript : CogToolBlockAdvancedScriptBase
{
  #region Private Member Variables
  private Cognex.VisionPro.ToolBlock.CogToolBlock mToolBlock;
  #endregion
  CogGraphicCollection dt = new CogGraphicCollection();
  CogGraphicLabel label = new CogGraphicLabel();
 
  /// <summary>
  /// Called when the parent tool is run.
  /// Add code here to customize or replace the normal run behavior.
  /// </summary>
  /// <param name="message">Sets the Message in the tool's RunStatus.</param>
  /// <param name="result">Sets the Result in the tool's RunStatus</param>
  /// <returns>True if the tool should run normally,
  ///          False if GroupRun customizes run behavior</returns>
  public override bool GroupRun(ref string message, ref CogToolResultConstants result)
  {
    // To let the execution stop in this script when a debugger is attached, uncomment the following lines.
    // #if DEBUG
    // if (System.Diagnostics.Debugger.IsAttached) System.Diagnostics.Debugger.Break();
    // #endif
    dt.Clear();
    CogBlobTool blob = mToolBlock.Tools["CogBlobTool1"]as CogBlobTool;
    CogPolarUnwrapTool polar = mToolBlock.Tools["CogPolarUnwrapTool1"]as CogPolarUnwrapTool;


    // Run each tool using the RunTool function
    foreach(ICogTool tool in mToolBlock.Tools)
      mToolBlock.RunTool(tool, ref message, ref result);
    
    for(int i = 0;i < blob.Results.GetBlobs().Count;i++)
    {
      double x = blob.Results.GetBlobs()[i].CenterOfMassX;
      double y = blob.Results.GetBlobs()[i].CenterOfMassY;
      double lastx,lasty;
      polar.RunParams.GetInputPointFromOutputPoint(polar.InputImage, polar.Region, x, y, out lastx, out lasty);
      dt.Add(CreateCircle(lastx, lasty));
    }
    if(blob.Results.GetBlobs().Count > 0)
    {
      label.SetXYText(100, 100, "NG");
      label.Alignment = CogGraphicLabelAlignmentConstants.TopLeft;
      label.Font = new Font("楷体", 20);
      label.Color = CogColorConstants.Red;
      dt.Add(label);
    }else
    {
      label.SetXYText(100, 100, "Pass");
      label.Alignment = CogGraphicLabelAlignmentConstants.TopLeft;
      label.Font = new Font("楷体", 20);
      label.Color = CogColorConstants.Green;
      dt.Add(label);
    }
      return false;
  }
  private CogCircle CreateCircle(double x, double y)
  {
    CogCircle co = new CogCircle();
    co.CenterX = x;
    co.CenterY = y;
    co.Radius = 30;
    co.Color = CogColorConstants.Red;
    co.LineWidthInScreenPixels = 6;
    
    return co;
  }

  #region When the Current Run Record is Created
  /// <summary>
  /// Called when the current record may have changed and is being reconstructed
  /// </summary>
  /// <param name="currentRecord">
  /// The new currentRecord is available to be initialized or customized.</param>
  public override void ModifyCurrentRunRecord(Cognex.VisionPro.ICogRecord currentRecord)
  {
  }
  #endregion

  #region When the Last Run Record is Created
  /// <summary>
  /// Called when the last run record may have changed and is being reconstructed
  /// </summary>
  /// <param name="lastRecord">
  /// The new last run record is available to be initialized or customized.</param>
  public override void ModifyLastRunRecord(Cognex.VisionPro.ICogRecord lastRecord)
  {
    foreach(ICogGraphic s in dt)
    {
      mToolBlock.AddGraphicToRunRecord(s, lastRecord, "CogImageConvertTool1.InputImage", "");
    }
  }
  #endregion

  #region When the Script is Initialized
  /// <summary>
  /// Perform any initialization required by your script here
  /// </summary>
  /// <param name="host">The host tool</param>
  public override void Initialize(Cognex.VisionPro.ToolGroup.CogToolGroup host)
  {
    // DO NOT REMOVE - Call the base class implementation first - DO NOT REMOVE
    base.Initialize(host);


    // Store a local copy of the script host
    this.mToolBlock = ((Cognex.VisionPro.ToolBlock.CogToolBlock)(host));
  }
  #endregion

}