mirror of https://github.com/SixLabors/ImageSharp
James South
12 years ago
13 changed files with 212 additions and 68 deletions
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<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003"> |
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<PropertyGroup> |
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<MSBuildCommunityTasksPath>.\</MSBuildCommunityTasksPath> |
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</PropertyGroup> |
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<Import Project=".\MSBuildCommunityTasks\MSBuild.Community.Tasks.Targets" /> |
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<!-- |
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VARIABLES |
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***************************************************** |
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--> |
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<PropertyGroup> |
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<BuildConfiguration>Release</BuildConfiguration> |
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<BuildFolder>_BuildOutput\</BuildFolder> |
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<IncludeSymbols>False</IncludeSymbols> |
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<BuildFolderAbsolutePath>$(MSBuildProjectDirectory)\$(BuildFolder)</BuildFolderAbsolutePath> |
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<SolutionBinFolderAbsolutePath>$(BuildFolderAbsolutePath)ImageProcessor.Plugins.Cair\lib\net45</SolutionBinFolderAbsolutePath> |
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<BuildInputDir>..\src\Plugins\ImageProcessor\ImageProcessor.Plugins.Cair\</BuildInputDir> |
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</PropertyGroup> |
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<!-- |
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TARGETS |
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***************************************************** |
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--> |
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<Target Name="Build" DependsOnTargets="BuildImageProcessorPluginsCair"> |
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<Message Text="Build finished" /> |
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</Target> |
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<Target Name="BuildImageProcessorPluginsCair" DependsOnTargets="SetVersionNumber"> |
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<Message Text="Compiling ImageProcessor.Plugins.Cair project to build\$(BuildFolder)" Importance="High" /> |
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<MSBuild Projects="$(BuildInputDir)\ImageProcessor.Plugins.Cair.csproj" Properties="WarningLevel=0;Configuration=$(BuildConfiguration);PipelineDependsOnBuild=False;OutDir=$(SolutionBinFolderAbsolutePath);" Targets="Clean;Rebuild;" BuildInParallel="False" ToolsVersion="4.0" UnloadProjectsOnCompletion="False" /> |
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<Message Text="Finished compiling project" Importance="High" /> |
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</Target> |
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<Target Name="SetVersionNumber" Condition="'$(BUILD_RELEASE)'!=''"> |
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<Message Text="Creating Version File: $(BUILD_RELEASE)"/> |
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<ItemGroup> |
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<AssemblyFiles Include="$(BuildInputDir)Properties\AssemblyInfo.cs;" /> |
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</ItemGroup> |
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<FileUpdate Files="@(AssemblyFiles)" |
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Multiline="true" |
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Singleline="false" |
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Regex="(AssemblyVersion|AssemblyFileVersionAttribute|AssemblyFileVersion)\("([0-9]+\.[0-9]+\.[0-9]+\.[0-9]+)?"\)" |
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ReplacementText="$1("$(BUILD_RELEASE)")" /> |
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</Target> |
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</Project> |
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namespace ImageProcessor.Imaging.EdgeDetection |
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{ |
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using System; |
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using System.Drawing; |
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using System.Drawing.Imaging; |
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using ImageProcessor.Common.Extensions; |
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/// <summary>
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/// http://pastebin.com/xHHD3pXi
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/// </summary>
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public class ConvolutionFilter |
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{ |
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private readonly IEdgeFilter edgeFilter; |
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public ConvolutionFilter(IEdgeFilter edgeFilter) |
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{ |
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this.edgeFilter = edgeFilter; |
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} |
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public Bitmap ProcessFilter(Bitmap source) |
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{ |
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double[,] horizontalFilter = this.edgeFilter.HorizontalMatrix; |
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double[,] verticallFilter = this.edgeFilter.VerticalMatrix; |
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int width = source.Width; |
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int height = source.Height; |
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int maxWidth = width - 1; |
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int maxHeight = height - 1; |
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Bitmap destination = new Bitmap(width, height, PixelFormat.Format32bppArgb); |
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using (FastBitmap sourceBitmap = new FastBitmap(source)) |
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{ |
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using (FastBitmap destinationBitmap = new FastBitmap(destination)) |
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{ |
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for (int y = 1; y < maxHeight; y++) |
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{ |
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for (int x = 1; x < maxWidth; x++) |
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{ |
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double newX = 0; |
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double newY = 0; |
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for (int hw = -1; hw < 2; hw++) |
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{ |
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for (int wi = -1; wi < 2; wi++) |
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{ |
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double component = sourceBitmap.GetPixel(x + wi, y + hw).B; |
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newX += horizontalFilter[hw + 1, wi + 1] * component; |
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newY += verticallFilter[hw + 1, wi + 1] * component; |
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} |
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} |
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byte value = Math.Sqrt((newX * newX) + (newY * newY)).ToByte(); |
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Color tempcolor = Color.FromArgb(value, value, value); |
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destinationBitmap.SetPixel(x, y, tempcolor); |
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} |
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} |
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} |
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} |
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return destination; |
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} |
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} |
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} |
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namespace ImageProcessor.Imaging.EdgeDetection |
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{ |
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public interface IEdgeFilter |
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{ |
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double[,] HorizontalMatrix { get; } |
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double[,] VerticalMatrix { get; } |
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} |
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} |
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namespace ImageProcessor.Imaging.EdgeDetection |
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{ |
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public class SobelEdgeFilter : IEdgeFilter |
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{ |
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public double[,] HorizontalMatrix |
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{ |
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get |
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{ |
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return new double[,] |
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{ { -1, 0, 1, }, |
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{ -2, 0, 2, }, |
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{ -1, 0, 1, }, }; |
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} |
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} |
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public double[,] VerticalMatrix |
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{ |
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get |
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{ |
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return new double[,] |
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{ { 1, 2, 1, }, |
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{ 0, 0, 0, }, |
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{ -1, -2, -1, }, }; |
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} |
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} |
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} |
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} |
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using System; |
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using System.Collections.Generic; |
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using System.Linq; |
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using System.Text; |
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using System.Threading.Tasks; |
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namespace ImageProcessor.Processors |
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{ |
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using System.Drawing; |
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using ImageProcessor.Common.Exceptions; |
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using ImageProcessor.Imaging.EdgeDetection; |
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public class DetectEdges : IGraphicsProcessor |
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{ |
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/// <summary>
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/// Initializes a new instance of the <see cref="DetectEdges"/> class.
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/// </summary>
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public DetectEdges() |
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{ |
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this.Settings = new Dictionary<string, string>(); |
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} |
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/// <summary>
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/// Gets or sets the dynamic parameter.
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/// </summary>
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public dynamic DynamicParameter |
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{ |
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get; |
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set; |
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} |
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/// <summary>
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/// Gets or sets any additional settings required by the processor.
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/// </summary>
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public Dictionary<string, string> Settings |
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{ |
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get; |
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set; |
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} |
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/// <summary>
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/// Processes the image.
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/// </summary>
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/// <param name="factory">
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/// The current instance of the <see cref="T:ImageProcessor.ImageFactory"/> class containing
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/// the image to process.
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/// </param>
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/// <returns>
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/// The processed image from the current instance of the <see cref="T:ImageProcessor.ImageFactory"/> class.
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/// </returns>
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public Image ProcessImage(ImageFactory factory) |
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{ |
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Bitmap newImage = null; |
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Image image = factory.Image; |
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IEdgeFilter filter = this.DynamicParameter; |
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try |
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{ |
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ConvolutionFilter convolutionFilter = new ConvolutionFilter(filter); |
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newImage = convolutionFilter.ProcessFilter((Bitmap)image); |
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image.Dispose(); |
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image = newImage; |
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} |
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catch (Exception ex) |
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{ |
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if (newImage != null) |
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{ |
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newImage.Dispose(); |
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} |
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throw new ImageProcessingException("Error processing image with " + this.GetType().Name, ex); |
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} |
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return image; |
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} |
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} |
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} |
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