プロジェクト追加

App.config

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<configuration>
+    <startup> 
+        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5"/>
+    </startup>
+</configuration>

Bead.cs

@@ -0,0 +1,28 @@
+using ClosedXML.Excel;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace BeadsImageConverter
+{
+    public class Bead
+    {
+        public readonly int No;
+        public readonly string Name;
+        public readonly XLColor Color;
+        public readonly XLColor FontColor;
+        public int Count { get; set; }
+        public int Total { get; set; }
+
+        public Bead(int no, string name, byte r, byte g, byte b)
+        {
+            No = no;
+            Name = name;
+            Color = XLColor.FromArgb((int)r, (int)g, (int)b);
+            byte grey = (byte)(0.299 * (double)r + 0.587 * (double)g + 0.114 * (double)b);
+            FontColor = ((grey < 186) ? XLColor.White : XLColor.Black);
+        }
+    }
+}

BeadsImageConverter.csproj

@@ -0,0 +1,102 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="12.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <ProjectGuid>{E630D483-EA4F-409B-958B-569DD2D6054F}</ProjectGuid>
+    <OutputType>WinExe</OutputType>
+    <AppDesignerFolder>Properties</AppDesignerFolder>
+    <RootNamespace>BeadsImageConverter</RootNamespace>
+    <AssemblyName>BeadsImageConverter</AssemblyName>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
+    <FileAlignment>512</FileAlignment>
+    <TargetFrameworkProfile />
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>full</DebugType>
+    <Optimize>false</Optimize>
+    <OutputPath>bin\Debug\</OutputPath>
+    <DefineConstants>DEBUG;TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+    <Prefer32Bit>false</Prefer32Bit>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <DebugType>pdbonly</DebugType>
+    <Optimize>true</Optimize>
+    <OutputPath>bin\Release\</OutputPath>
+    <DefineConstants>TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+    <Prefer32Bit>false</Prefer32Bit>
+  </PropertyGroup>
+  <ItemGroup>
+    <Reference Include="ClosedXML">
+      <HintPath>packages\ClosedXML.0.87.0\build\net40\ClosedXML.dll</HintPath>
+    </Reference>
+    <Reference Include="DocumentFormat.OpenXml, Version=2.5.5631.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
+      <HintPath>packages\DocumentFormat.OpenXml.2.5\lib\DocumentFormat.OpenXml.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
+    <Reference Include="System" />
+    <Reference Include="System.Core" />
+    <Reference Include="System.Xml.Linq" />
+    <Reference Include="System.Data.DataSetExtensions" />
+    <Reference Include="Microsoft.CSharp" />
+    <Reference Include="System.Data" />
+    <Reference Include="System.Deployment" />
+    <Reference Include="System.Drawing" />
+    <Reference Include="System.Windows.Forms" />
+    <Reference Include="System.Xml" />
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="Bead.cs" />
+    <Compile Include="CIELAB.cs" />
+    <Compile Include="FormMain.cs">
+      <SubType>Form</SubType>
+    </Compile>
+    <Compile Include="FormMain.Designer.cs">
+      <DependentUpon>FormMain.cs</DependentUpon>
+    </Compile>
+    <Compile Include="Program.cs" />
+    <Compile Include="Properties\AssemblyInfo.cs" />
+    <EmbeddedResource Include="FormMain.resx">
+      <DependentUpon>FormMain.cs</DependentUpon>
+    </EmbeddedResource>
+    <EmbeddedResource Include="Properties\Resources.resx">
+      <Generator>ResXFileCodeGenerator</Generator>
+      <LastGenOutput>Resources.Designer.cs</LastGenOutput>
+      <SubType>Designer</SubType>
+    </EmbeddedResource>
+    <Compile Include="Properties\Resources.Designer.cs">
+      <AutoGen>True</AutoGen>
+      <DependentUpon>Resources.resx</DependentUpon>
+      <DesignTime>True</DesignTime>
+    </Compile>
+    <None Include="packages.config" />
+    <None Include="Properties\Settings.settings">
+      <Generator>SettingsSingleFileGenerator</Generator>
+      <LastGenOutput>Settings.Designer.cs</LastGenOutput>
+    </None>
+    <Compile Include="Properties\Settings.Designer.cs">
+      <AutoGen>True</AutoGen>
+      <DependentUpon>Settings.settings</DependentUpon>
+      <DesignTimeSharedInput>True</DesignTimeSharedInput>
+    </Compile>
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="App.config" />
+  </ItemGroup>
+  <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
+  <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
+       Other similar extension points exist, see Microsoft.Common.targets.
+  <Target Name="BeforeBuild">
+  </Target>
+  <Target Name="AfterBuild">
+  </Target>
+  -->
+</Project>

BeadsImageConverter.sln

@@ -0,0 +1,22 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio 2013
+VisualStudioVersion = 12.0.40629.0
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "BeadsImageConverter", "BeadsImageConverter.csproj", "{E630D483-EA4F-409B-958B-569DD2D6054F}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{E630D483-EA4F-409B-958B-569DD2D6054F}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{E630D483-EA4F-409B-958B-569DD2D6054F}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{E630D483-EA4F-409B-958B-569DD2D6054F}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{E630D483-EA4F-409B-958B-569DD2D6054F}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+EndGlobal

CIELAB.cs

@@ -0,0 +1,90 @@
+using System;
+using System.Collections.Generic;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace BeadsImageConverter
+{
+    public class CIELAB
+    {
+        private static readonly int[] GammaTable = CreateGammaTable();
+        private static readonly int[] LabTable = CreateLabTable();
+        public static readonly CIELAB White = FromColor(Color.White);
+        public static readonly CIELAB Black = FromColor(Color.Black);
+        private static readonly double Max = Diff(White, Black);
+
+        public readonly int L;
+        public readonly int A;
+        public readonly int B;
+
+        private static int[] CreateGammaTable()
+        {
+            int[] table = new int[256];
+            for (int i = 0; i < 256; i++)
+            {
+                double value = (double)i / 255.0;
+                table[i] = (int)(((value > 0.04045) ? Math.Pow((value + 0.055) / 1.055, 2.4) : (value / 12.92)) * 100000.0);
+            }
+            return table;
+        }
+
+        private static int[] CreateLabTable()
+        {
+            int[] table = new int[100001];
+            for (int i = 0; i < table.Count<int>(); i++)
+            {
+                double value = (double)i / 100001.0;
+                table[i] = (int)(((value > 0.008856) ? Math.Pow(value, 0.33333333333333331) : (7.787 * value + 0.13793103448275862)) * 1000000.0);
+            }
+            return table;
+        }
+
+        private static double Diff(CIELAB src, CIELAB dst)
+        {
+            double L = (double)(src.L - dst.L);
+            double A = (double)(src.A - dst.A);
+            double B = (double)(src.B - dst.B);
+            return Math.Sqrt(L * L + A * A + B * B);
+        }
+
+        public static CIELAB FromRGB(byte r, byte g, byte b)
+        {
+            return CIELAB.FromColor(Color.FromArgb((int)r, (int)g, (int)b));
+        }
+
+        public static CIELAB FromColor(Color color)
+        {
+            int r = GammaTable[(int)color.R];
+            int g = GammaTable[(int)color.G];
+            int b = GammaTable[(int)color.B];
+
+            int x = (4124 * r + 3576 * g + 1805 * b) / 9505;
+            int y = (2126 * r + 7152 * g + 722 * b) / 10000;
+            int z = (193 * r + 1192 * g + 9505 * b) / 10890;
+
+            x = LabTable[x];
+            y = LabTable[y];
+            z = LabTable[z];
+
+            int L = 116 * y - 16000000;
+            int A = 500 * (x - y);
+            int B = 200 * (y - z);
+
+            return new CIELAB(L, A, B);
+        }
+
+        public static double Difference(CIELAB src, CIELAB dst)
+        {
+            return Diff(src, dst) / Max;
+        }
+
+        public CIELAB(int l, int a, int b)
+        {
+            this.L = l;
+            this.A = a;
+            this.B = b;
+        }
+    }
+}