MIL邊緣檢查實戰20220303-有解無憂

一、邊緣檢查常用方法

二、MIL自帶Tools Matrox Edge Finder操作

三、程式邏輯

四、程式代碼

一、邊緣檢查常用方法

MgraAllocList	分配一個影像串列
MedgeAlloc	分配邊緣檢查器
MedgeAllocResult	分配邊緣檢測資料
MedgeControl	控制邊緣檢查設定
MedgeCalculate	執行邊緣提取和特征計算
MedgeGetResult	從邊緣結果緩沖區獲取邊的結果
MedgeSelect	選擇邊進行計算和結果檢索

二、MIL自帶Tools Matrox Edge Finder操作

1）選擇Matrox Edge Finder

2)點擊File→OPEN（選擇影像）

3）點擊File→New Edge Finder→Contour Edge Finder

4)點擊Calculate計算，顯示邊緣

5）在Contour Edge Finder中有Feature Selections，其中有相關引數查看，在本次邊緣檢查中，需要Moment Elongation引數參考

三、程式邏輯

四、程式代碼

1)控制臺代碼

using System;

using Matrox.MatroxImagingLibrary;
namespace EdgeFindSeals
{
    class Program
    {
        //private const string CONTOUR_IMAGE = "C:/Program Files (x86)/Matrox Imaging/Images/Seals.mim";
        private const string CONTOUR_IMAGE = MIL.M_IMAGE_PATH + "Seals.mim";
        private const int CONTOUR_MAX_RESULTS = 100;
        private const double CONTOUR_MAXIMUM_ELONGATION = 0.8;
        private static readonly int CONTOUR_DRAW_COLOR = MIL.M_COLOR_GREEN;
        private static readonly int CONTOUR_LABEL_COLOR = MIL.M_COLOR_RED;
        static void Main(string[] args)
        {
            MIL_ID MilApplication = MIL.M_NULL;             //程式識別符號
            MIL_ID MilSystem = MIL.M_NULL;                  //系統識別符號
            MIL_ID MilDisplay = MIL.M_NULL;                 //顯示識別符號
            MIL_ID MilImage = MIL.M_NULL;                   //影像快取區識別符號
            MIL_ID GraphicList = MIL.M_NULL;                //圖形串列識別符號
            MIL_ID MilEdgeContext = MIL.M_NULL;             //背景關系識別符號
            MIL_ID MilEdgeResult = MIL.M_NULL;              //邊緣緩沖區識別符號
            double EdgeDrawColor = CONTOUR_DRAW_COLOR;      //邊緣顏色識別符號
            double LabelDrawColor = CONTOUR_LABEL_COLOR;    //標簽顏色識別符號
            MIL_INT NumEdgeFound = 0;                       //邊緣數量識別符號
            MIL_INT NumResults = 0;                         //邊緣最終數量
            int i = 0;                                      
            double[] MeanFeretDiameter = new double[CONTOUR_MAX_RESULTS];//平均直徑陣列

            //分配默認應用
            MIL.MappAllocDefault(MIL.M_DEFAULT, ref MilApplication, ref MilSystem, ref MilDisplay, MIL.M_NULL, MIL.M_NULL);

            //讀取本地影像于影像快取區
            MIL.MbufRestore(CONTOUR_IMAGE, MilSystem, ref MilImage);
            //選擇影像快取區放入顯示中
            MIL.MdispSelect(MilDisplay, MilImage);

            //分配一個影像串列
            MIL.MgraAllocList(MilSystem, MIL.M_DEFAULT, ref GraphicList);

            //控制顯示設定
            MIL.MdispControl(MilDisplay, MIL.M_ASSOCIATED_GRAPHIC_LIST_ID, GraphicList);

            Console.Write("\nEDGE MODULE:\n");
            Console.Write("------------\n\n");
            Console.Write("This program determines the outer seal diameters in the displayed image \n");
            Console.Write("by detecting and analyzing contours with the Edge Finder module.\n");
            Console.Write("Press <Enter> to continue.\n\n");
            Console.ReadKey();

            //分配邊緣檢查器
            MIL.MedgeAlloc(MilSystem, MIL.M_CONTOUR, MIL.M_DEFAULT, ref MilEdgeContext);

            //分配邊緣檢測資料于MilEdgeResult
            MIL.MedgeAllocResult(MilSystem, MIL.M_DEFAULT, ref MilEdgeResult);

            //控制邊緣檢查的
            MIL.MedgeControl(MilEdgeContext, MIL.M_MOMENT_ELONGATION, MIL.M_ENABLE);
            //控制邊緣檢查出的平均直徑
            MIL.MedgeControl(MilEdgeContext, MIL.M_FERET_MEAN_DIAMETER + MIL.M_SORT1_DOWN, MIL.M_ENABLE);
            
            //使用MilEdgeContext及MilImage快取資料計算結果于MilEdgeResult
            MIL.MedgeCalculate(MilEdgeContext, MilImage, MIL.M_NULL, MIL.M_NULL, MIL.M_NULL, MilEdgeResult, MIL.M_DEFAULT);

            //從MilEdgeResult獲得邊緣數量并存放于NunEdgeFound
            MIL.MedgeGetResult(MilEdgeResult, MIL.M_DEFAULT, MIL.M_NUMBER_OF_CHAINS + MIL.M_TYPE_MIL_INT, ref NumEdgeFound);

            //設定邊緣前景顏色
            MIL.MgraColor(MIL.M_DEFAULT, EdgeDrawColor);
            //繪制圖形在影像上
            MIL.MedgeDraw(MIL.M_DEFAULT, MilEdgeResult, GraphicList, MIL.M_DRAW_EDGES, MIL.M_DEFAULT, MIL.M_DEFAULT);

            Console.Write("{0} edges were found in the image.\n", NumEdgeFound);
            Console.Write("Press <Enter> to continue.\n\n");
            Console.ReadKey();

            //指定殘缺邊緣將其從緩沖區洗掉
            MIL.MedgeSelect(MilEdgeResult, MIL.M_EXCLUDE, MIL.M_MOMENT_ELONGATION, MIL.M_LESS, CONTOUR_MAXIMUM_ELONGATION, MIL.M_NULL);
            //指定內邊緣將其從緩沖區洗掉
            MIL.MedgeSelect(MilEdgeResult, MIL.M_EXCLUDE, MIL.M_INCLUDED_EDGES, MIL.M_INSIDE_BOX, MIL.M_NULL, MIL.M_NULL);

            //將影像緩沖區清除為指定的前景色，或從圖形串列中洗掉圖形
            MIL.MgraClear(MIL.M_DEFAULT, GraphicList);
            //設定邊緣前景顏色
            MIL.MgraColor(MIL.M_DEFAULT, EdgeDrawColor);
            //繪制圖形在影像上
            MIL.MedgeDraw(MIL.M_DEFAULT, MilEdgeResult, GraphicList, MIL.M_DRAW_EDGES, MIL.M_DEFAULT, MIL.M_DEFAULT);

            Console.Write("Elongated edges and inner edges of each seal were removed.\n");
            Console.Write("Press <Enter> to continue.\n\n");
            Console.ReadKey();

            //檢索MilEdgeResult邊的數量并轉化位MIL_INT型別存放于NumResults
            MIL.MedgeGetResult(MilEdgeResult, MIL.M_DEFAULT, MIL.M_NUMBER_OF_CHAINS + MIL.M_TYPE_MIL_INT, ref NumResults);

            //若NumResults大于1且小于等于CONTOUR_MAX_RESULTS，計算出每個邊緣的平均直徑
            if ((NumResults >= 1) && (NumResults <= CONTOUR_MAX_RESULTS))
            {
                MIL.MgraColor(MIL.M_DEFAULT, LabelDrawColor);
                MIL.MedgeDraw(MIL.M_DEFAULT, MilEdgeResult, GraphicList, MIL.M_DRAW_INDEX, MIL.M_DEFAULT, MIL.M_DEFAULT);

                MIL.MedgeGetResult(MilEdgeResult, MIL.M_DEFAULT, MIL.M_FERET_MEAN_DIAMETER, MeanFeretDiameter);

                Console.Write("Mean diameter of the {0} outer edges are:\n\n", NumResults);
                Console.Write("Index   Mean diameter \n");
                for (i = 0; i < NumResults; i++)
                {
                    Console.Write("{0,-10}{1,-13:0.00}\n", i, MeanFeretDiameter[i]);
                }
            }
            //反之結束
            else
            {
                Console.Write("Edges have not been found or the number of found edges is greater than\n");
                Console.Write("the specified maximum number of edges !\n\n");
            }

            Console.Write("\nPress <Enter> to end.\n");
            Console.ReadKey();

            //釋放資源
            MIL.MgraFree(GraphicList);
            MIL.MedgeFree(MilEdgeContext);
            MIL.MedgeFree(MilEdgeResult);
            MIL.MbufFree(MilImage);

            MIL.MappFreeDefault(MilApplication, MilSystem, MilDisplay, MIL.M_NULL, MIL.M_NULL);
        }
    }
}

2）WinForm代碼（待更新）

using System;
using System.Windows.Forms;

using Matrox.MatroxImagingLibrary;

namespace EdgeFindSealsForm
{
    public partial class Form1 : Form
    {
        private const string CONTOUR_IMAGE = MIL.M_IMAGE_PATH + "Seals.mim";
        private const int CONTOUR_MAX_RESULTS = 100;
        private const double CONTOUR_MAXIMUM_ELONGATION = 0.8;
        private static readonly int CONTOUR_DRAW_COLOR = MIL.M_COLOR_GREEN;
        private static readonly int CONTOUR_LABEL_COLOR = MIL.M_COLOR_RED;

        MIL_ID MilApplication = MIL.M_NULL;             //程式識別符號
        MIL_ID MilSystem = MIL.M_NULL;                  //系統識別符號
        MIL_ID MilDisplay = MIL.M_NULL;                 //顯示識別符號
        MIL_ID MilImage = MIL.M_NULL;                   //影像快取區識別符號
        MIL_ID GraphicList = MIL.M_NULL;                //圖形串列識別符號
        MIL_ID MilEdgeContext = MIL.M_NULL;             //背景關系識別符號
        MIL_ID MilEdgeResult = MIL.M_NULL;              //邊緣緩沖區識別符號
        double EdgeDrawColor = CONTOUR_DRAW_COLOR;      //邊緣顏色識別符號
        double LabelDrawColor = CONTOUR_LABEL_COLOR;    //標簽顏色識別符號
        MIL_INT NumEdgeFound = 0;                       //邊緣數量識別符號
        MIL_INT NumResults = 0;                         //邊緣最終數量
        int i = 0;
        int a = 0;
        double[] MeanFeretDiameter = new double[CONTOUR_MAX_RESULTS];//平均直徑陣列
        public Form1()
        {
            InitializeComponent();

            //分配默認應用
            MIL.MappAllocDefault(MIL.M_DEFAULT, ref MilApplication, ref MilSystem, ref MilDisplay, MIL.M_NULL, MIL.M_NULL);
        }

        public void EdgeFind()
        {
            //讀取本地影像于影像快取區
            MIL.MbufRestore(CONTOUR_IMAGE, MilSystem, ref MilImage);
            
            //選擇影像快取區放入顯示中
            MIL.MdispSelectWindow(MilDisplay, MilImage, this.panel1.Handle);
            
            //影像居中且自適應視窗
            MIL.MdispControl(MilDisplay, MIL.M_SCALE_DISPLAY, MIL.M_ENABLE);
           
            //分配一個影像串列
            MIL.MgraAllocList(MilSystem, MIL.M_DEFAULT, ref GraphicList);

            //控制顯示設定
            MIL.MdispControl(MilDisplay, MIL.M_ASSOCIATED_GRAPHIC_LIST_ID, GraphicList);

            //----------------------------------------------------------------------
            //分配邊緣檢查器
            MIL.MedgeAlloc(MilSystem, MIL.M_CONTOUR, MIL.M_DEFAULT, ref MilEdgeContext);

            //分配邊緣檢測資料于MilEdgeResult
            MIL.MedgeAllocResult(MilSystem, MIL.M_DEFAULT, ref MilEdgeResult);

            //控制邊緣檢查的
            MIL.MedgeControl(MilEdgeContext, MIL.M_MOMENT_ELONGATION, MIL.M_ENABLE);
            //控制邊緣檢查出的平均直徑
            MIL.MedgeControl(MilEdgeContext, MIL.M_FERET_MEAN_DIAMETER + MIL.M_SORT1_DOWN, MIL.M_ENABLE);

            //使用MilEdgeContext及MilImage快取資料計算結果于MilEdgeResult
            MIL.MedgeCalculate(MilEdgeContext, MilImage, MIL.M_NULL, MIL.M_NULL, MIL.M_NULL, MilEdgeResult, MIL.M_DEFAULT);

            //從MilEdgeResult獲得邊緣數量并存放于NunEdgeFound
            MIL.MedgeGetResult(MilEdgeResult, MIL.M_DEFAULT, MIL.M_NUMBER_OF_CHAINS + MIL.M_TYPE_MIL_INT, ref NumEdgeFound);

            //設定邊緣前景顏色
            MIL.MgraColor(MIL.M_DEFAULT, EdgeDrawColor);
            //繪制圖形在影像上
            MIL.MedgeDraw(MIL.M_DEFAULT, MilEdgeResult, GraphicList, MIL.M_DRAW_EDGES, MIL.M_DEFAULT, MIL.M_DEFAULT);

            //----------------------------------------------------------------------

            //指定殘缺邊緣將其從緩沖區洗掉
            MIL.MedgeSelect(MilEdgeResult, MIL.M_EXCLUDE, MIL.M_MOMENT_ELONGATION, MIL.M_LESS, CONTOUR_MAXIMUM_ELONGATION, MIL.M_NULL);
            //指定內邊緣將其從緩沖區洗掉
            MIL.MedgeSelect(MilEdgeResult, MIL.M_EXCLUDE, MIL.M_INCLUDED_EDGES, MIL.M_INSIDE_BOX, MIL.M_NULL, MIL.M_NULL);

            //將影像緩沖區清除為指定的前景色，或從圖形串列中洗掉圖形
            MIL.MgraClear(MIL.M_DEFAULT, GraphicList);
            //設定邊緣前景顏色
            MIL.MgraColor(MIL.M_DEFAULT, EdgeDrawColor);
            //繪制圖形在影像上
            MIL.MedgeDraw(MIL.M_DEFAULT, MilEdgeResult, GraphicList, MIL.M_DRAW_EDGES, MIL.M_DEFAULT, MIL.M_DEFAULT);

            //----------------------------------------------------------------------

            //檢索MilEdgeResult邊的數量并轉化位MIL_INT型別存放于NumResults
            MIL.MedgeGetResult(MilEdgeResult, MIL.M_DEFAULT, MIL.M_NUMBER_OF_CHAINS + MIL.M_TYPE_MIL_INT, ref NumResults);

            //若NumResults大于1且小于等于CONTOUR_MAX_RESULTS，計算出每個邊緣的平均直徑
            if ((NumResults >= 1) && (NumResults <= CONTOUR_MAX_RESULTS))
            {
                MIL.MgraColor(MIL.M_DEFAULT, LabelDrawColor);
                MIL.MedgeDraw(MIL.M_DEFAULT, MilEdgeResult, GraphicList, MIL.M_DRAW_INDEX, MIL.M_DEFAULT, MIL.M_DEFAULT);

                MIL.MedgeGetResult(MilEdgeResult, MIL.M_DEFAULT, MIL.M_FERET_MEAN_DIAMETER, MeanFeretDiameter);

                textBox1.AppendText("Mean diameter of the" + NumResults + "outer edges are:\r\n");
                //Console.Write("Mean diameter of the {0} outer edges are:\n\n", NumResults);
                textBox1.AppendText("Index   Mean diameter \r\n");
                //Console.Write("Index   Mean diameter \n");
                for (i = 0; i < NumResults; i++)
                {
                    double TwoDecimal = double.Parse(MeanFeretDiameter[i].ToString("0.00"));
                    textBox1.AppendText(i + "          " + TwoDecimal + "\r\n");
                }
            }
            //反之結束
            else
            {
                Console.Write("Edges have not been found or the number of found edges is greater than\n");
                Console.Write("the specified maximum number of edges !\n\n");
            }

        }

        public void ClearBuffer()
        {
            //釋放資源
            MIL.MgraFree(GraphicList);
            MIL.MedgeFree(MilEdgeContext);
            MIL.MedgeFree(MilEdgeResult);
            MIL.MbufFree(MilImage);

            MIL.MappFreeDefault(MilApplication, MilSystem, MilDisplay, MIL.M_NULL, MIL.M_NULL);
        }
        private void From_Close(object sender, EventArgs e)
        {
                ClearBuffer();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            EdgeFind();
            button1.Enabled = false;
        }
    }
}

參考MIL Help

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