public void TestMorphologicalErosionRBA()
{
ImageRaster3D <float> source = new ImageRaster3D <float>(5, 5, 5);
ImageRaster3D <float> target = new ImageRaster3D <float>(5, 5, 5);
source.SetElementValue(2, 2, 2, 1);
List <int[]> offsets = new List <int[]>();
offsets.Add(new int[] { 0, 0, 0 });
StructuringElement3D structure_0 = new StructuringElement3D(offsets);
ToolsImageRaster.MorphologicalErosionRBA(source, structure_0, 0, target);
Assert.AreEqual(1, target.GetElementIndexesWithValue(1).Count);
offsets.Add(new int[] { 1, 0, 0 });
offsets.Add(new int[] { -1, 0, 0 });
offsets.Add(new int[] { 0, 1, 0 });
offsets.Add(new int[] { 0, -1, 0 });
offsets.Add(new int[] { 0, 0, 1 });
offsets.Add(new int[] { 0, 0, -1 });
StructuringElement3D structure_1 = new StructuringElement3D(offsets);
ToolsImageRaster.MorphologicalErosionRBA(source, structure_1, 0, target);
Assert.AreEqual(0, target.GetElementIndexesWithValue(1).Count);
source.SetElementValue(1, 2, 2, 1);
source.SetElementValue(3, 2, 2, 1);
source.SetElementValue(2, 1, 2, 1);
source.SetElementValue(2, 3, 2, 1);
source.SetElementValue(2, 2, 1, 1);
source.SetElementValue(2, 2, 3, 1);
ToolsImageRaster.MorphologicalErosionRBA(source, structure_1, 0, target);
Assert.AreEqual(1, target.GetElementIndexesWithValue(1).Count);
}
public static ImageRaster3D <RangeType> MorphologicalOpening <RangeType>(ImageRaster3D <RangeType> source, StructuringElement3D structure, RangeType default_value)
where RangeType : IComparable <RangeType>
{
ImageRaster3D <RangeType> temp = new ImageRaster3D <RangeType>(source.Raster);
ImageRaster3D <RangeType> target = new ImageRaster3D <RangeType>(source.Raster);
MorphologicalOpeningRBA(source, structure, default_value, temp, target);
return(target);
}
public static void MorphologicalDilationRBA <RangeType>(ImageRaster3D <RangeType> source, StructuringElement3D structure, RangeType default_value, ImageRaster3D <RangeType> target)
where RangeType : IComparable <RangeType>
{
if (!source.Raster.Equals(target.Raster))
{
throw new Exception("Raster Mismatch");
}
IRaster3DInteger raster = source.Raster;
//Parallel.For(0, source.ElementCount, source_element_index =>
for (int source_element_index = 0; source_element_index < source.ElementCount; source_element_index++)
{
int[] coordinates = raster.GetElementCoordinates(source_element_index);
RangeType value = default_value;
bool found = false;
for (int offset_index = 0; offset_index < structure.FlippedOffsets.Count; offset_index++)
{
int[] offset = structure.FlippedOffsets[offset_index];
if (raster.ContainsCoordinates(coordinates[0] + offset[0], coordinates[1] + offset[1], coordinates[2] + offset[2]))
{
if (found)
{
value = ToolsMath.Max(value, source.GetElementValue(coordinates[0] + offset[0], coordinates[1] + offset[1], coordinates[2] + offset[2]));
}
else
{
value = source.GetElementValue(coordinates[0] + offset[0], coordinates[1] + offset[1], coordinates[2] + offset[2]);
found = true;
}
}
}
target.SetElementValue(source_element_index, value);
}//);
}
//TODO speed up
public static void MorphologicalOpeningRBA <RangeType>(ImageRaster3D <RangeType> source, StructuringElement3D structure, RangeType default_value, ImageRaster3D <RangeType> temp, ImageRaster3D <RangeType> target)
where RangeType : IComparable <RangeType>
{
if ((!source.Raster.Equals(temp.Raster)) || (!source.Raster.Equals(target.Raster)))
{
throw new Exception("Raster Mismatch");
}
IRaster3DInteger raster = source.Raster;
//Do erosion
MorphologicalErosionRBA(source, structure, default_value, temp);
//Do dilation
MorphologicalDilationRBA(temp, structure, default_value, target);
}
