public override Tuple <IImageRaster <IRaster2DInteger, int>, IImageRaster <IRaster2DInteger, float>, IList <int[]>, IList <float[]> > Initialize(IRaster2DInteger raster) { IImageRaster2D <int> region_image = new ImageRaster2D <int>(raster); IImageRaster2D <float> distance_image = new ImageRaster2D <float>(raster, Single.MaxValue); Tuple <IList <int[]>, IList <float[]> > Centroids = InitializeCentroids(raster); IList <int[]> cluster_spatial_centroids = Centroids.Item1; IList <float[]> cluster_feature_centroids = Centroids.Item2; int[] neigbourhood_dimensions = d_cluster_dimensions_double; int neigbourhood_element_count = ((neigbourhood_dimensions[0] * 2) + 1) * ((neigbourhood_dimensions[1] * 2) + 1); int[] element_index_indexes = new int[neigbourhood_element_count]; for (int centroid_index = 0; centroid_index < cluster_spatial_centroids.Count; centroid_index++) { raster.GetNeigbourhoodElementIndexesRBA(cluster_spatial_centroids[centroid_index], neigbourhood_dimensions, element_index_indexes); for (int element_index_index = 0; element_index_index < neigbourhood_element_count; element_index_index++) { int element_index = element_index_indexes[element_index_index]; if (element_index != -1) { int[] element_coordinates = raster.GetElementCoordinates(element_index); float distance = FunctionDistanceEuclidean.ComputeStatic(element_coordinates, cluster_spatial_centroids[centroid_index]); if (distance < distance_image.GetElementValue(element_index)) { distance_image.SetElementValue(element_index, distance); region_image.SetElementValue(element_index, centroid_index); } } } } return(new Tuple <IImageRaster <IRaster2DInteger, int>, IImageRaster <IRaster2DInteger, float>, IList <int[]>, IList <float[]> >(region_image, distance_image, cluster_spatial_centroids, cluster_feature_centroids)); }
public static void DistanceTransform2DOosterbroekRBA(ImageRaster2D <bool> mask_image, float[] voxel_size, ImageRaster2D <float> distance_image) { ImageRaster3D <bool> mask_image_3d = new ImageRaster3D <bool>(mask_image.Raster.Size0, mask_image.Raster.Size1, 1, mask_image.GetElementValues(false), false); ImageRaster3D <float> distance_image_3d = new ImageRaster3D <float>(mask_image.Raster.Size0, mask_image.Raster.Size1, 1, distance_image.GetElementValues(false), false); DistanceTransform3DOosterbroekRBA(mask_image_3d, voxel_size, distance_image_3d); }
public void TestDefaultBuilderTrivial0(IMaxTreeBuilder <int> builder) { int[] data = new int[] { 0, 0, 0, 0 }; IImageRaster2D <int> image = new ImageRaster2D <int>(2, 2, data, false); ITopologyElement topology = new TopologyElementRaster2D4Connectivity(image.Raster); IMaxTree <int> maxtree = builder.BuildMaxTree(data, new ComparerNatural <int>(), topology, data.Length); }
public static ImageRaster2D <bool> GetShell2D8C(ImageRaster2D <bool> source, bool border_is_shell = false) { ITopologyElement topology = new TopologyElementRaster2D8Connectivity(source.Raster); ImageRaster2D <bool> target = new ImageRaster2D <bool>(source.Raster); GetShellRBA(source, topology, target, border_is_shell); return(target); }
private ImageRaster2D <Color> IntializeOutputImage(IImageRaster2D <Color> input_image, int output_width, int output_height) { ImageRaster2D <Color> output_image = new ImageRaster2D <Color>(output_width, output_height); Random random = new Random(); /* randomize the last few columns from the input image */ for (int element_index = 0; element_index < output_image.Raster.ElementCount; element_index++) { int random_x = random.Next((input_image.Raster.Size0 - 1) - (scale * 2)) + scale; int random_y = random.Next((input_image.Raster.Size1 - 1) - (scale * 2)) + scale; output_image.SetElementValue(element_index, input_image.GetElementValue(random_x, random_y)); } return(output_image); }
public SpectralAnaliser(ModelApplication application, int channel, int block_size, int block_stride, int size_x, int size_y) { this.application = application; this.Dispatcher = Dispatcher.CurrentDispatcher; this.blocker = new Blocker(block_size, 8); this.blocker.ExecuteStart(); this.is_running = false; this.channel = channel; this.image = new ImageRaster2D <float>(size_x, size_y); this.x_index = 0; this.f_rate = block_size / (size_y * 2); Render(); }
public void TestDefaultBuilderTrivial3(IMaxTreeBuilder <int> builder) { int[] data = new int[] { 1, 2, 2, 0, 2, 1 }; IImageRaster2D <int> image = new ImageRaster2D <int>(2, 3, data, false); ITopologyElement topology = new TopologyElementRaster2D4Connectivity(image.Raster); IMaxTree <int> maxtree = builder.BuildMaxTree(data, new ComparerNatural <int>(), topology, data.Length); int[] element_indexes_0 = maxtree.GetFullElementsIndexesOfElementLevelAndAbove(1); Assert.AreEqual(1, element_indexes_0.Length); int[] element_indexes_1 = maxtree.GetFullElementsIndexesOfElementLevelAndAbove(4); Assert.AreEqual(2, element_indexes_1.Length); int[] element_indexes_2 = maxtree.GetFullElementsIndexesOfElementLevelAndAbove(0); Assert.AreEqual(5, element_indexes_2.Length); int[] element_indexes_3 = maxtree.GetFullElementsIndexesOfElementLevelAndAbove(3); Assert.AreEqual(6, element_indexes_3.Length); }
public IImageRaster <IRaster2DInteger, bool> Render(Tuple <List <int>, IRaster3DInteger> render_source) { List <int> elements_true = render_source.Item1; IRaster3DInteger source_raster = render_source.Item2; float[,] coordinates_image = new float[elements_true.Count, 3]; float[,] elements_projection = new float[elements_true.Count, 3]; int [] coordinates = new int [3]; for (int element_index_index = 0; element_index_index < elements_true.Count; element_index_index++) { source_raster.GetElementCoordinatesRBA(elements_true[element_index_index], coordinates); coordinates_image[element_index_index, 0] = coordinates[0]; coordinates_image[element_index_index, 1] = coordinates[1]; coordinates_image[element_index_index, 2] = coordinates[2]; } for (int element_index = 0; element_index < elements_true.Count; element_index++) { elements_projection[element_index, 0] = ((coordinates_image[element_index, 0] - image_focus[0]) * projection_vector_x[0]) + ((coordinates_image[element_index, 1] - image_focus[1]) * projection_vector_x[1]) + ((coordinates_image[element_index, 2] - image_focus[2]) * projection_vector_x[2]); elements_projection[element_index, 1] = ((coordinates_image[element_index, 0] - image_focus[0]) * projection_vector_y[0]) + ((coordinates_image[element_index, 1] - image_focus[1]) * projection_vector_y[1]) + ((coordinates_image[element_index, 2] - image_focus[2]) * projection_vector_y[2]); elements_projection[element_index, 2] = ((coordinates_image[element_index, 0] - image_focus[0]) * projection_vector_z[0]) + ((coordinates_image[element_index, 1] - image_focus[1]) * projection_vector_z[1]) + ((coordinates_image[element_index, 2] - image_focus[2]) * projection_vector_z[2]); } Raster2DInteger bitmap_raster = new Raster2DInteger(bitmap_size_x, bitmap_size_y); ImageRaster2D <bool> destination_image = new ImageRaster2D <bool>(bitmap_size_x, bitmap_size_y); for (int element_index = 0; element_index < elements_true.Count; element_index++) { int x_target = (int)elements_projection[element_index, 0] + (bitmap_raster.Size0 / 2); int y_target = (int)elements_projection[element_index, 1] + (bitmap_raster.Size1 / 2); if (bitmap_raster.ContainsCoordinates(x_target, y_target)) { destination_image.SetElementValue(x_target, y_target, true); } } return(destination_image); }
public void TestDefaultBuilderBig(IMaxTreeBuilder <int> builder) { Random random = new Random(0); int[] data = new int [512 * 512]; for (int index = 1; index < data.Length; index++) { data[index] = (int)(random.NextDouble() * 100.0); } IImageRaster2D <int> image = new ImageRaster2D <int>(512, 512, data, false); ITopologyElement topology = new TopologyElementRaster2D4Connectivity(image.Raster); IMaxTree <int> maxtree = builder.BuildMaxTree(data, new ComparerNatural <int>(), topology, data.Length); maxtree.GetFullElementsIndexesOfElementLevelAndAbove(0); maxtree.GetFullElementsIndexesOfElementLevelAndAbove(500); maxtree.GetFullElementsIndexesOfElementLevelAndAbove(1800); }
public ImageRaster2D <Color> GenerateTexture(IImageRaster2D <Color> input_image, int output_width, int output_height) { ImageRaster2D <Color> output_image = IntializeOutputImage(input_image, output_width, output_height); Random random = new Random(); Tuple <Color, Color[]>[] input_neighborhoods = BuildInputNeighborhoods(input_image); for (int iteration_index = 0; iteration_index < this.iterations; iteration_index++) { //get random index int random_x = random.Next((output_width - 1) - (scale * 2)) + scale; int random_y = random.Next((output_height - 1) - (scale * 2)) + scale; //finde SetBestMatchPixel(input_neighborhoods, output_image, random_x, random_y); } return(output_image); }
public IImageRaster2D <float> Render(IImageSpace <float, float> source_image) { IImageRaster2D <float> destination_image = new ImageRaster2D <float>(); float[] coordinates = new float [render_origen.Length]; for (int index_y = 0; index_y < this.resolution_y; index_y++) { for (int index_x = 0; index_x < this.resolution_x; index_x++) { ToolsCollection.CopyRBA(this.render_origen, coordinates); for (int index_dimension = 0; index_dimension < this.dimension_count; index_dimension++) { coordinates[index_dimension] += (render_stride_x[index_dimension] * index_x) + (render_stride_y[index_dimension] * index_y); } destination_image.SetElementValue(index_x, index_y, source_image.GetLocationValue(coordinates)); } } return(destination_image); }
public void TestDistance2DOosterbroek() { ImageRaster2D <bool> mask = new ImageRaster2D <bool>(5, 5); mask[0] = true; mask[6] = true; mask[12] = true; mask[13] = true; mask[19] = true; ImageRaster2D <float> distance = new ImageRaster2D <float>(mask.Raster); ToolsDistance.DistanceTransform2DOosterbroekRBA(mask, new float[] { 1.0f, 1.0f, 1.0f }, distance); Assert.AreEqual(0.0f, distance[0]); Assert.AreEqual(1.0f, distance[1]); Assert.AreEqual(ToolsMath.Sqrt(2.0f), distance[2]); Assert.AreEqual(2.0f, distance[3]); Assert.AreEqual(ToolsMath.Sqrt(5.0f), distance[4]); Assert.AreEqual(ToolsMath.Sqrt(8.0f), distance[20]); }
public static void DistanceTransform2DSlowRBA(ImageRaster2D <bool> mask_image, float[] voxel_size, ImageRaster2D <float> distance_image) { IRaster2DInteger raster = mask_image.Raster; int size_0 = mask_image.Raster.Size0; int size_1 = mask_image.Raster.Size1; // Apply the transform in the x-direction //for (int plane_index = 0; plane_index < size_z * size_y; plane_index++) //{ Parallel.For(0, size_0, index_0 => { for (int index_1 = 0; index_1 < size_1; index_1++) { float best_distance = float.MaxValue; if (mask_image.GetElementValue(index_0, index_1)) { best_distance = 0; } else { for (int index_0_1 = 0; index_0_1 < size_0; index_0_1++) { for (int index_1_1 = 0; index_1_1 < size_1; index_1_1++) { if (mask_image.GetElementValue(index_0_1, index_1_1)) { float distance = ToolsMath.Sqrt(ToolsMath.Sqr((index_0_1 - index_0) * voxel_size[0]) + ToolsMath.Sqr((index_1_1 - index_1) * voxel_size[0])); if (distance < best_distance) { best_distance = distance; } } } } } distance_image.SetElementValue(index_0, index_1, best_distance); } }); }
public static ImageRaster2D <bool> Threshold <DomainType>(ImageRaster2D <DomainType> image, DomainType threshold) where DomainType : IComparable <DomainType> { return(new ImageRaster2D <bool>(image.Raster, image.Convert <bool>(new FunctionStep <DomainType>(threshold)).GetElementValues(false), false)); }
public static WriteableBitmap ConvertImageRaster2DToWriteableBitmap <RangeType>(ImageRaster2D <RangeType> image_raster_base, IFunction <RangeType, int> converter) { int width = image_raster_base.Raster.Size0; int height = image_raster_base.Raster.Size1; System.Windows.Media.PixelFormat format = System.Windows.Media.PixelFormats.Bgr24; WriteableBitmap result = new WriteableBitmap(width, height, 96, 96, System.Windows.Media.PixelFormats.Bgr24, null); int[] pixels = ToolsMathFunction.Convert(image_raster_base.GetElementValues(false), converter); int stride = (format.BitsPerPixel / 8) * width; int bytes = stride * height; //TODO convert result.Lock(); result.WritePixels(new Int32Rect(0, 0, width, height), pixels, bytes, stride); result.Unlock(); return(result); }