エッジ検出

１次元エッジ検出によりエッジ点群を抽出し、近似計算で直線と円に変換し、距離を計測する例です。

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プレビュー:

エッジ検出結果

直線近似と円近似

点と直線の距離

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ワークフロー:

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ソースコード:

namespace FVIL.Parser
{
    using System;
    using System.Collections.Generic;
    using System.Text;
    using System.Drawing;
    using System.Reflection;
    using System.ComponentModel;
    using System.Windows.Forms;
    using System.Runtime.Serialization;
    using System.Security.Permissions;
    using System.Globalization;
    using fvalgcli;
    
    [System.SerializableAttribute()]
    [System.ComponentModel.TypeConverterAttribute(typeof(System.ComponentModel.ExpandableObjectConverter))]
    public partial class ParserNodeUser : FVIL.Parser.ParserNodeUnit
    {
        public override void Execute(object sender, System.EventArgs e)
        {
            FVIL.Data.CFviImage target1_out0 = new FVIL.Data.CFviImage(256, 240, FVIL.ImageType.UC8, 1);
            FVIL.Edge.CFviEdgeResult target2_out0 = new FVIL.Edge.CFviEdgeResult();
            FVIL.Edge.CFviEdgeResult target3_out0 = new FVIL.Edge.CFviEdgeResult();
            FVIL.Edge.CFviEdgeResult target4_out0 = new FVIL.Edge.CFviEdgeResult();
            FVIL.Data.CFviLine target5_out0 = 
                new FVIL.Data.CFviLine(1, 0.2532541721230761, -84.620416859384008);
            FVIL.Data.CFviLine target6_out0 = 
                new FVIL.Data.CFviLine(1, 0.24762089172587431, -249.30331288145166);
            FVIL.Data.CFviCircle target7_out0 = 
                new FVIL.Data.CFviCircle(137.67168616358185, 115.42045679202695, 21.639257493825262);
            FVIL.Data.CFviCircle target8_out0 = 
                new FVIL.Data.CFviCircle(137.67168616358185, 115.42045679202695, 21.639257493825262);
            FVIL.Data.CFviPoint target8_out1 = 
                new FVIL.Data.CFviPoint(137.67168616358185, 115.42045679202695);
            double target8_out2 = 21.639257493825262;
            double target8_out3 = 137.67168616358185;
            double target8_out4 = 115.42045679202695;
            double target9_out0 = 79.763799312042011;
            double target10_out0 = 80.616337793131365;

            // 画像#1
            target1_out0 = ((FVIL.Parser.IDataObject<FVIL.Data.CFviImage>)(ParserInfo)).Infos[0].Data;

            // １次元エッジ検出 (矩形)#1
            FVIL.Edge.CFviBoxEdge target2 = new FVIL.Edge.CFviBoxEdge();
            target2.SrcImages[0] = target1_out0;
            target2.Result = target2_out0;
            target2.MaxThreshold = 75;
            target2.Around = 2;
            target2.Foot = 1;
            target2.Len = 0;
            target2.EdgeDirection = FVIL.Edge.Direction.BrightToDark;
            target2.LineWidth = 0;
            target2.Threshold = -1;
            target2.ScanDirection = FVIL.ScanDirection.Right;
            target2.Number = 12;
            target2.Box = new FVIL.Data.CFviRectangle(
                60, 37.288247321445432, 90.92518839821922, 148.83211150513876, 
                14.403819866037779, 0, 8.7117526785545678);
            target2.Execute();

            // １次元エッジ検出 (矩形)#2
            FVIL.Edge.CFviBoxEdge target3 = new FVIL.Edge.CFviBoxEdge();
            target3.SrcImages[0] = target1_out0;
            target3.Result = target3_out0;
            target3.MaxThreshold = 75;
            target3.Around = 2;
            target3.Foot = 1;
            target3.Len = 0;
            target3.EdgeDirection = FVIL.Edge.Direction.BrightToDark;
            target3.LineWidth = 0;
            target3.Threshold = -1;
            target3.ScanDirection = FVIL.ScanDirection.Left;
            target3.Number = 12;
            target3.Box = new FVIL.Data.CFviRectangle(
                212, 76.920616462741449, 243.12403515431902, 191.80449871795281, 
                15.390940092953223, 0, 11.079383537258551);
            target3.Execute();

            // １次元エッジ検出 (放射状)#1
            FVIL.Edge.CFviRadialEdge target4 = new FVIL.Edge.CFviRadialEdge();
            target4.SrcImages[0] = target1_out0;
            target4.Result = target4_out0;
            target4.Threshold = 25;
            target4.ScanDirection = FVIL.Edge.ScanDirection.Inward;
            target4.Number = 12;
            target4.Radial = new FVIL.Data.CFviCircle(138, 116, 33.498769231142433);
            target4.Execute();

            // 直線近似#1
            target5_out0 = FVIL.CG.Function.FitLine(
                new FVIL.DPNT_T_ARRAY(new FVIL.DPNT_T_ARRAY(target2_out0)), FVIL.CG.FitMode.MESTIMATOR, 3.291);

            // 直線近似#2
            target6_out0 = FVIL.CG.Function.FitLine(
                new FVIL.DPNT_T_ARRAY(new FVIL.DPNT_T_ARRAY(target3_out0)), FVIL.CG.FitMode.MESTIMATOR, 3.291);

            // 円近似#1
            target7_out0 = FVIL.CG.Function.FitCircle(
                new FVIL.DPNT_T_ARRAY(new FVIL.DPNT_T_ARRAY(target4_out0)), FVIL.CG.FitMode.MESTIMATOR, 3.291);

            // 真円#1
            target8_out0 = target7_out0;
            target8_out1 = target8_out0.Center;
            target8_out2 = target8_out0.Radius;
            target8_out3 = target8_out0.X;
            target8_out4 = target8_out0.Y;

            // 距離(点と直線)#1
            target9_out0 = FVIL.Caliper.Function.Distance(target8_out1, target5_out0);

            // 距離(点と直線)#2
            target10_out0 = FVIL.Caliper.Function.Distance(target8_out1, target6_out0);
        }
    }
}