public Bitmap ToAdditiveNoise(Bitmap Im) { AForge.Imaging.Filters.AdditiveNoise Img = new AdditiveNoise(); Bitmap bmImage = AForge.Imaging.Image.Clone(new Bitmap(Im), PixelFormat.Format24bppRgb); return(Img.Apply(bmImage)); }
public mNoiseAdditive(wDomain GeneratorDomain) { Domain = GeneratorDomain; BitmapType = mFilter.BitmapTypes.Rgb24bpp; filter = new AdditiveNoise(); }
/// <summary> /// 增加噪点 /// </summary> /// <param name="bmp">原位图</param> public static void AddictiveNoise(Bitmap bmp) { // create random generator IRandomNumberGenerator generator = new UniformGenerator(new Range(-50, 50)); // create filter AdditiveNoise filter = new AdditiveNoise(generator); // apply the filter filter.ApplyInPlace(bmp); }
public static Bitmap AddNoiseToImage(Bitmap input) { // create random generator IRandomNumberGenerator generator = new UniformGenerator(new Range(-50, 50)); // create filter AdditiveNoise filter = new AdditiveNoise(generator); // apply the filter return(filter.Apply(input)); }
//cause gaussian noise spikes private static Bitmap Speckle(Bitmap image) { IRandomNumberGenerator generator = new GaussianGenerator(0f, 5f); // create filter AdditiveNoise filter = new AdditiveNoise(generator); // apply the filter return(filter.Apply(image)); }
public static byte[] ApplyFilter(byte[] imageBytes, ImageProcessingFilters filter, ImageFormat format = null) { IFilter baseFilter = null; switch (filter) { case ImageProcessingFilters.Default: return(imageBytes); case ImageProcessingFilters.GrayscaleBT709: baseFilter = new GrayscaleBT709(); break; case ImageProcessingFilters.GrayscaleRMY: baseFilter = new GrayscaleRMY(); break; case ImageProcessingFilters.GrayscaleY: baseFilter = new GrayscaleY(); break; case ImageProcessingFilters.BayerFilter: baseFilter = new FiltersSequence(); ((FiltersSequence)baseFilter).Add(new ExtractChannel(RGB.B)); ((FiltersSequence)baseFilter).Add(new BayerFilter()); break; /* * case ImageProcessingFilters.ImageWarp: * baseFilter = new ImageWarp( * break; * */ case ImageProcessingFilters.Channel_Red: baseFilter = new ExtractChannel(RGB.R); break; case ImageProcessingFilters.Channel_Green: baseFilter = new ExtractChannel(RGB.G); break; case ImageProcessingFilters.Channel_Blue: baseFilter = new ExtractChannel(RGB.B); break; case ImageProcessingFilters.WaterWave: baseFilter = new WaterWave(); ((WaterWave)baseFilter).HorizontalWavesCount = 10; ((WaterWave)baseFilter).HorizontalWavesAmplitude = 5; ((WaterWave)baseFilter).VerticalWavesCount = 3; ((WaterWave)baseFilter).VerticalWavesAmplitude = 15; break; case ImageProcessingFilters.Sepia: baseFilter = new Sepia(); break; case ImageProcessingFilters.BrightnessCorrection: baseFilter = new BrightnessCorrection(-50); break; case ImageProcessingFilters.ContrastCorrection: baseFilter = new ContrastCorrection(15); break; case ImageProcessingFilters.SaturationCorrection1: baseFilter = new SaturationCorrection(-0.5f); break; case ImageProcessingFilters.SaturationCorrection2: baseFilter = new SaturationCorrection(-.25f); break; case ImageProcessingFilters.SaturationCorrection3: baseFilter = new SaturationCorrection(+0.5f); break; case ImageProcessingFilters.Invert: baseFilter = new Invert(); break; case ImageProcessingFilters.Blur: baseFilter = new Blur(); break; case ImageProcessingFilters.RotateChannels: baseFilter = new RotateChannels(); break; case ImageProcessingFilters.RotateChannels2: baseFilter = new FiltersSequence(); ((FiltersSequence)baseFilter).Add(new RotateChannels()); ((FiltersSequence)baseFilter).Add(new RotateChannels()); break; case ImageProcessingFilters.AdditiveNoise: IRandomNumberGenerator generator = new UniformGenerator(new Range(-50, 50)); baseFilter = new AdditiveNoise(generator); break; case ImageProcessingFilters.GammaCorrection: baseFilter = new GammaCorrection(0.5); break; case ImageProcessingFilters.HistogramEqualization: baseFilter = new HistogramEqualization(); break; case ImageProcessingFilters.OrderedDithering: byte[,] matrix = new byte[4, 4] { { 95, 233, 127, 255 }, { 159, 31, 191, 63 }, { 111, 239, 79, 207 }, { 175, 47, 143, 15 } }; baseFilter = new FiltersSequence(); ((FiltersSequence)baseFilter).Add(new GrayscaleBT709()); ((FiltersSequence)baseFilter).Add(new OrderedDithering(matrix)); break; case ImageProcessingFilters.Pixallete: baseFilter = new Pixellate(); break; case ImageProcessingFilters.SimplePosterization: baseFilter = new SimplePosterization(); break; case ImageProcessingFilters.Texturer_Textile: baseFilter = new Texturer(new AForge.Imaging.Textures.TextileTexture(), 0.3, 0.7); break; case ImageProcessingFilters.Texturer_Cloud: baseFilter = new Texturer(new AForge.Imaging.Textures.CloudsTexture(), 0.3, 0.7); break; case ImageProcessingFilters.Texturer_Marble: baseFilter = new Texturer(new AForge.Imaging.Textures.MarbleTexture(), 0.3, 0.7); break; case ImageProcessingFilters.Texturer_Wood: baseFilter = new Texturer(new AForge.Imaging.Textures.WoodTexture(), 0.3, 0.7); break; case ImageProcessingFilters.Texturer_Labyrinth: baseFilter = new Texturer(new AForge.Imaging.Textures.LabyrinthTexture(), 0.3, 0.7); break; case ImageProcessingFilters.SobelEdgeDetector: baseFilter = new FiltersSequence(); ((FiltersSequence)baseFilter).Add(new ExtractChannel(RGB.R)); ((FiltersSequence)baseFilter).Add(new SobelEdgeDetector()); break; case ImageProcessingFilters.SobelEdgeDetectorInvert: baseFilter = new FiltersSequence(); ((FiltersSequence)baseFilter).Add(new ExtractChannel(RGB.R)); ((FiltersSequence)baseFilter).Add(new SobelEdgeDetector()); ((FiltersSequence)baseFilter).Add(new Invert()); break; case ImageProcessingFilters.SobelEdgeDetectorSepia: baseFilter = new FiltersSequence(); ((FiltersSequence)baseFilter).Add(new ExtractChannel(RGB.R)); ((FiltersSequence)baseFilter).Add(new SobelEdgeDetector()); ((FiltersSequence)baseFilter).Add(new GrayscaleToRGB()); ((FiltersSequence)baseFilter).Add(new Sepia()); break; case ImageProcessingFilters.SobelEdgeDetectorSepiaCanvas: baseFilter = new FiltersSequence(); ((FiltersSequence)baseFilter).Add(new ExtractChannel(RGB.R)); ((FiltersSequence)baseFilter).Add(new SobelEdgeDetector()); ((FiltersSequence)baseFilter).Add(new GrayscaleToRGB()); ((FiltersSequence)baseFilter).Add(new Sepia()); ((FiltersSequence)baseFilter).Add(new SimplePosterization()); ((FiltersSequence)baseFilter).Add(new Texturer(new AForge.Imaging.Textures.TextileTexture(), 0.3, 0.7)); break; case ImageProcessingFilters.Drawing: baseFilter = new FiltersSequence(); ((FiltersSequence)baseFilter).Add(new GrayscaleBT709()); ((FiltersSequence)baseFilter).Add(new SobelEdgeDetector()); ((FiltersSequence)baseFilter).Add(new Invert()); ((FiltersSequence)baseFilter).Add(new SimplePosterization()); break; case ImageProcessingFilters.DrawingSepia: baseFilter = new FiltersSequence(); ((FiltersSequence)baseFilter).Add(new GrayscaleBT709()); ((FiltersSequence)baseFilter).Add(new SobelEdgeDetector()); ((FiltersSequence)baseFilter).Add(new Invert()); ((FiltersSequence)baseFilter).Add(new SimplePosterization()); ((FiltersSequence)baseFilter).Add(new GrayscaleToRGB()); ((FiltersSequence)baseFilter).Add(new Sepia()); break; case ImageProcessingFilters.OilCanvas: baseFilter = new FiltersSequence(); ((FiltersSequence)baseFilter).Add(new SimplePosterization()); ((FiltersSequence)baseFilter).Add(new Texturer(new AForge.Imaging.Textures.TextileTexture(), 0.3, 0.7)); break; case ImageProcessingFilters.OilCanvasGray: baseFilter = new FiltersSequence(); ((FiltersSequence)baseFilter).Add(new SimplePosterization()); ((FiltersSequence)baseFilter).Add(new Texturer(new AForge.Imaging.Textures.TextileTexture(), 0.3, 0.7)); ((FiltersSequence)baseFilter).Add(new GrayscaleBT709()); break; case ImageProcessingFilters.OilCanvasSepia: baseFilter = new FiltersSequence(); ((FiltersSequence)baseFilter).Add(new SimplePosterization()); ((FiltersSequence)baseFilter).Add(new Texturer(new AForge.Imaging.Textures.TextileTexture(), 0.3, 0.7)); ((FiltersSequence)baseFilter).Add(new Sepia()); break; } if (baseFilter == null) { return(null); } return(ApplyFilter(imageBytes, baseFilter, format)); }