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));
}
private void Start()
{
Complex[] block;
while (is_running)
{
if (blocker.OutputQueue.TryDequeue(out block))
{
// do fft
MathNet.Numerics.IntegralTransforms.Fourier.Forward(block);
//TODO Shift image?
float sum = 0;
for (int y_index = 0; y_index < image.Raster.Size1; y_index++)
{
//image.SetElementValue(x_index, y_index, (float)random.NextDouble());
float value = 0;
for (int f_index = 0; f_index < f_rate; f_index++)
{
if ((y_index * f_rate) + f_index < (block.Length))
{
value += (float)(block[(y_index * f_rate) + f_index].Magnitude * ((float)((y_index * f_rate) + f_index)));
}
}
value /= f_rate;
sum += value;
image.SetElementValue(x_index, y_index, value);
}
sum /= image.Raster.Size1 * 0.5f;
for (int y_index = 0; y_index < image.Raster.Size1; y_index++)
{
image.SetElementValue(x_index, y_index, image.GetElementValue(x_index, y_index) / sum);
}
x_index = (x_index + 1) % image.Raster.Size0;
}
//Render image
Render();
}
}
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 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 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 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);
}
});
}