VisionPro学习日志(五)
VisionPro学习日志(五)
案例1:多目标检测(动态使用卡尺)
检测流程:首先使用斑点工具,显示出每一个白色矩形框,然后使用卡尺工具测量每一个黑框的高度。
#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.Blob;
using Cognex.VisionPro.Caliper;
using System.Collections.Generic; //添加泛型引用
#endregion
public class CogToolBlockAdvancedScript : CogToolBlockAdvancedScriptBase
{
#region Private Member Variables
private Cognex.VisionPro.ToolBlock.CogToolBlock mToolBlock;
List<CogGraphicLabel> labels = new List<CogGraphicLabel>();
#endregion
/// <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
// Run each tool using the RunTool function
foreach(ICogTool tool in mToolBlock.Tools)
mToolBlock.RunTool(tool, ref message, ref result);
//2.获取斑点信息
CogBlobTool blobTool = mToolBlock.Tools["CogBlobTool1"] as CogBlobTool;
//斑点集合
CogBlobResultCollection blobResults = blobTool.Results.GetBlobs() as CogBlobResultCollection; //斑点的集合
//获取卡尺工具
CogCaliperTool caliperTool = mToolBlock.Tools["CogCaliperTool1"] as CogCaliperTool; //获取卡尺工具
//设置卡尺的中心点 之前需要获取区域信息
CogRectangleAffine caliperRegion = caliperTool.Region as CogRectangleAffine; //仿射矩形 caliperRegion 卡尺的区域
labels.Clear();//清空列表
foreach(CogBlobResult blob in blobResults)
{
caliperRegion.CenterX = blob.CenterOfMassX; //斑点的质心
caliperRegion.CenterY = blob.CenterOfMassY;
//运行卡尺
mToolBlock.RunTool(caliperTool, ref message, ref result); //运行卡尺工具
CogGraphicLabel myLabel = new CogGraphicLabel();//定义一个图形标签
if( caliperTool.Results.Count > 0 )
{
myLabel.SetXYText(blob.CenterOfMassX, blob.CenterOfMassY, "Good");
myLabel.Color = CogColorConstants.Green;
}
else
{
myLabel.SetXYText(blob.CenterOfMassX, blob.CenterOfMassY, "Bad");
myLabel.Color = CogColorConstants.Red;
}
labels.Add(myLabel); //添加到列表当中
}
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(CogGraphicLabel label in labels )
{
mToolBlock.AddGraphicToRunRecord(label, lastRecord, "CogBlobTool1.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
}
案例2:圆形瓶口缺陷检测
最后结果不满意:无法精确到分辨缺陷。对于缺陷的尺寸没法正确标注。
案例3:检测球形轴承的安装错误(重新复盘学习,后续会补充)
使用原图的模板,会出现无法识别到实例的情况。
解决思路:对原图进行预处理,然后降噪。让原图中的精细特征变多(有点类似于Halcon重新处理模板的图像,让模板的像素特征更加精确)。
案例4:圆形文字识别
原先可能会出现沿着水平轴展开是相反的情况
修改起始角度即可: