• VisionPro 作业脚本介绍


    一.Visionpro脚本用途

    作业脚本是对相机取像进行控制的脚本,如设置相机的帧率,曝光,频闪,自动对焦等等功能.

    二.作业脚本继承关系:

    Public Class UserScript   Inherits CogJobBaseScript

    CogJobBaseScript类的成员如下

    job 这个成员可以获取控制你脚本的CogJob;

    2.当一个图像采集先进先出队列构建并分配工作会调用该方法,当点击初始化图像来源按钮时候,将会构建图像采集先进先出队列并分配工作.

    1 public override void AcqFifoConstruction(Cognex.VisionPro.ICogAcqFifo fifo)
    2  
    3 {
    4  
    5    
    6  
    7 }

    3.当手动图像采集和半自动触发图像采集以前调用该方法

    1 public override void PreAcquisition()
    2  
    3 {
    4  
    5  
    6  
    7 }

    4.这个函数和PostAcquisition相似,图像将以引用的方式传递进来,如果函数返回TRUE,则QuickBuild将会立即处理这个图像,如果返回FALSE,这个图像将不会被处理,QuickBuild接着取下一张图.

    1 public override void PreAcquisitionRef()
    2  
    3 {
    4  
    5  
    6  
    7 }

    5.当图像采集完后立即调用该方法

    1 public override bool PostAcquisitionRefInfo(ref Cognex.VisionPro.ICogImage image,Cognex.VisionPro.ICogAcqInfo info)
    2  
    3 {
    4  
    5        
    6  
    7 }

    6.当脚本初始化的时候调用

    1 public override void Initialize(CogJob jobParam)
    2  
    3 {
    4  
    5    base.Initialize(jobParam); 
    6  
    7 }

    例子中将读取的图片通过作业脚本转换为灰度图。

    在作业栏目中“配置”->"作业属性"->"编辑脚本"中选择C#脚本,然后进行编写,其将彩色图像转换为灰度图像代码如下:

     1 using System;
     2 using Cognex.VisionPro;
     3 using Cognex.VisionPro.QuickBuild;
     4 using System.Drawing.Imaging;
     5 using Cognex.VisionPro.ImageProcessing;
     6 using System.Windows.Forms;
     7  
     8 public class UserScript : CogJobBaseScript
     9 {
    10  
    11 #region "When an Acq Fifo Has Been Constructed and Assigned To The Job"
    12   // This function is called when a new fifo is assigned to the job.  This usually
    13   // occurs when the "Initialize Acquisition" button is pressed on the image source
    14   // control.  This function is where you would perform custom setup associated
    15   // with the fifo.
    16   public override void AcqFifoConstruction(Cognex.VisionPro.ICogAcqFifo fifo)
    17   {
    18   }
    19 #endregion
    20  
    21 #region "When an Acquisition is About To Be Started"
    22   // Called before an acquisition is started for manual and semi-automatic trigger
    23   // models.  If "Number of Software Acquisitions Pre-queued" is set to 1 in the
    24   // job configuration, then no acquisitions should be in progress when this
    25   // function is called.
    26   public override void PreAcquisition()
    27   {
    28     // To let the execution stop in this script when a debugger is attached, uncomment the following lines.
    29     // #if DEBUG
    30     // if (System.Diagnostics.Debugger.IsAttached) System.Diagnostics.Debugger.Break();
    31     // #endif
    32  
    33   }
    34 #endregion
    35  
    36 #region "When an Acquisition Has Just Completed"
    37   // Called immediately after an acquisition has completed.
    38   // Return true if the image should be inspected.
    39   // Return false to skip the inspection and acquire another image.
    40   public override bool PostAcquisitionRefInfo(ref Cognex.VisionPro.ICogImage image,
    41                                                   Cognex.VisionPro.ICogAcqInfo info)
    42   {
    43     // To let the execution stop in this script when a debugger is attached, uncomment the following lines.
    44     // #if DEBUG
    45     // if (System.Diagnostics.Debugger.IsAttached) System.Diagnostics.Debugger.Break();
    46     // #endif
    47     //将输入图像的一部分复制到新的输出图像或目标图像,或者使用常数灰度值填充输入区域的一部分
    48     CogCopyRegionTool imageStitcher;
    49     
    50     //CogCopyRegionTool实例化
    51     imageStitcher=new CogCopyRegionTool();
    52     
    53     //CogImage8Grey实例化
    54     CogImage8Grey stitchedImage = new CogImage8Grey();
    55     
    56     //初始化图像
    57     stitchedImage.Allocate(image.Width, image.Height);
    58     
    59     imageStitcher.DestinationImage = stitchedImage;
    60     
    61     //对输入图像的部分进行复制,如果为空是对整张图复制
    62     imageStitcher.Region = null;
    63     
    64     //将输入图像和目标图像对齐,如果为FALSE则表示目标图像将以左上角对齐
    65     imageStitcher.RunParams.ImageAlignmentEnabled = true;
    66     imageStitcher.RunParams.DestinationImageAlignmentX = 0;
    67     imageStitcher.RunParams.DestinationImageAlignmentY = 0;
    68     
    69     //将图像转化为灰度图像
    70     imageStitcher.InputImage = CogImageConvert.GetIntensityImage(image, 0, 0, image.Width, image.Height);
    71     imageStitcher.Run();
    72     
    73     imageStitcher.OutputImage.ToBitmap().Save(@"D:C Add AddVisionProVisionpro如何编写作业(Job)脚本
    esult.bmp");
    74     
    75     image = imageStitcher.OutputImage;
    76     
    77  
    78     return true;
    79   }
    80 #endregion
    81  
    82 #region "When the Script is Initialized"
    83   //Perform any initialization required by your script here.
    84   public override void Initialize(CogJob jobParam)
    85   {
    86     //DO NOT REMOVE - Call the base class implementation first - DO NOT REMOVE
    87     base.Initialize(jobParam);
    88   }
    89 #endregion
    90  
    91 }
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  • 原文地址:https://www.cnblogs.com/ybqjymy/p/14463764.html
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