From 6229b51a79769ca5abd903a937599f802773b333 Mon Sep 17 00:00:00 2001
From: syneffort <syneffort@gmail.com>
Date: Sat, 11 Jun 2022 08:33:49 +0900
Subject: [PATCH] grayscale class

---
 OpenCV/Form1.Designer.cs | 16 +++++++++++++++-
 OpenCV/Form1.cs          |  3 +++
 OpenCV/OpenCV.csproj     |  1 +
 OpenCV/OpenCVClass.cs    | 23 +++++++++++++++++++++++
 4 files changed, 42 insertions(+), 1 deletion(-)
 create mode 100644 OpenCV/OpenCVClass.cs

diff --git a/OpenCV/Form1.Designer.cs b/OpenCV/Form1.Designer.cs
index 1c6828f..5395342 100644
--- a/OpenCV/Form1.Designer.cs
+++ b/OpenCV/Form1.Designer.cs
@@ -30,7 +30,9 @@ namespace OpenCV
         private void InitializeComponent()
         {
             this.pictureBoxIpl1 = new OpenCvSharp.UserInterface.PictureBoxIpl();
+            this.pictureBoxIpl2 = new OpenCvSharp.UserInterface.PictureBoxIpl();
             ((System.ComponentModel.ISupportInitialize)(this.pictureBoxIpl1)).BeginInit();
+            ((System.ComponentModel.ISupportInitialize)(this.pictureBoxIpl2)).BeginInit();
             this.SuspendLayout();
             // 
             // pictureBoxIpl1
@@ -42,17 +44,28 @@ namespace OpenCV
             this.pictureBoxIpl1.TabIndex = 0;
             this.pictureBoxIpl1.TabStop = false;
             // 
+            // pictureBoxIpl2
+            // 
+            this.pictureBoxIpl2.Location = new System.Drawing.Point(658, 11);
+            this.pictureBoxIpl2.Name = "pictureBoxIpl2";
+            this.pictureBoxIpl2.Size = new System.Drawing.Size(640, 480);
+            this.pictureBoxIpl2.SizeMode = System.Windows.Forms.PictureBoxSizeMode.StretchImage;
+            this.pictureBoxIpl2.TabIndex = 1;
+            this.pictureBoxIpl2.TabStop = false;
+            // 
             // Form1
             // 
             this.AutoScaleDimensions = new System.Drawing.SizeF(7F, 12F);
             this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
-            this.ClientSize = new System.Drawing.Size(662, 503);
+            this.ClientSize = new System.Drawing.Size(1302, 503);
+            this.Controls.Add(this.pictureBoxIpl2);
             this.Controls.Add(this.pictureBoxIpl1);
             this.Name = "Form1";
             this.Text = "Form1";
             this.FormClosing += new System.Windows.Forms.FormClosingEventHandler(this.Form1_FormClosing);
             this.Load += new System.EventHandler(this.Form1_Load);
             ((System.ComponentModel.ISupportInitialize)(this.pictureBoxIpl1)).EndInit();
+            ((System.ComponentModel.ISupportInitialize)(this.pictureBoxIpl2)).EndInit();
             this.ResumeLayout(false);
 
         }
@@ -60,6 +73,7 @@ namespace OpenCV
         #endregion
 
         private OpenCvSharp.UserInterface.PictureBoxIpl pictureBoxIpl1;
+        private OpenCvSharp.UserInterface.PictureBoxIpl pictureBoxIpl2;
     }
 }
 
diff --git a/OpenCV/Form1.cs b/OpenCV/Form1.cs
index 690eaff..4930c31 100644
--- a/OpenCV/Form1.cs
+++ b/OpenCV/Form1.cs
@@ -36,7 +36,10 @@ namespace OpenCV
                     return;
 
                 src = new IplImage(fileName);
+                OpenCVClass Converter = new OpenCVClass();
+
                 pictureBoxIpl1.ImageIpl = src;
+                pictureBoxIpl2.ImageIpl = Converter.GrayScale(src);
             }
             catch (Exception ex)
             {
diff --git a/OpenCV/OpenCV.csproj b/OpenCV/OpenCV.csproj
index 4981139..ddf0637 100644
--- a/OpenCV/OpenCV.csproj
+++ b/OpenCV/OpenCV.csproj
@@ -72,6 +72,7 @@
     <Compile Include="Form1.Designer.cs">
       <DependentUpon>Form1.cs</DependentUpon>
     </Compile>
+    <Compile Include="OpenCVClass.cs" />
     <Compile Include="Program.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
     <EmbeddedResource Include="Form1.resx">
diff --git a/OpenCV/OpenCVClass.cs b/OpenCV/OpenCVClass.cs
new file mode 100644
index 0000000..631d08b
--- /dev/null
+++ b/OpenCV/OpenCVClass.cs
@@ -0,0 +1,23 @@
+using OpenCvSharp;
+using System;
+
+namespace OpenCV
+{
+    class OpenCVClass : IDisposable
+    {
+        IplImage gray;
+
+        public IplImage GrayScale(IplImage src)
+        {
+            gray = new IplImage(src.Size, BitDepth.U8, 1);
+            Cv.CvtColor(src, gray, ColorConversion.BgrToGray);
+            return gray;
+        }
+
+        public void Dispose()
+        {
+            if (gray != null)
+                Cv.ReleaseImage(gray);
+        }
+    }
+}