public void Apply(SRegion region)
{
Rectangle bounds = region.RegionRectangle;
unsafe
{
int dilationCenterX = (structElementSize.Width - 1) / 2;
int dilationCenterY = (structElementSize.Height - 1) / 2;
int dilationMaxX = structElementSize.Width - 1;
int dilationMaxY = structElementSize.Height - 1;
int* _dilationCenterX = (int*)dilationCenterX;
int* _dilationCenterY = (int*)dilationCenterY;
int* _dilationMaxX = (int*)dilationMaxX;
int* _dilationMaxY = (int*)dilationMaxX;
int* x_min = (int*)bounds.X;
int* x_max = (int*)(bounds.X + bounds.Width - (int)_dilationCenterX);
int* y_min = (int*)bounds.Y;
int* y_max = (int*)(bounds.Y + bounds.Height - (int)_dilationCenterY);
for (int* x = x_min; x < x_max; x++)
{
for (int* y = y_min; y < y_max; y++)
{
bool bitVal = region[(int)x, (int)y];
for (int* sX = (int*)0; sX < _dilationMaxX; sX++)
{
for (int* sY = (int*)0; sY < _dilationMaxY; sY++)
{
if (structElement[(int)sX, (int)sY] & region[(int)x + (int)sX, (int)y + (int)sY])
{
region.AddPoint((int)x + dilationCenterX, (int)y + dilationCenterY);
}
}
}
}
}
}
}
private unsafe void CreateRegionCollection()
{
///Create regions collection
Dictionary<int, SRegion> regionDictionary = new Dictionary<int, SRegion>();
unchecked
{
for (int x = 0; x < Image.Size.Width; x++)
{
for (int y = 0; y < Image.Size.Height; y++)
{
int regionId = binaryMask[x, y];
if (regionId > 0)
{
if (regionDictionary.ContainsKey(regionId))
{
regionDictionary[regionId].AddPoint(x, y);
}
else
{
SRegion region = new SRegion(ref binaryMask, regionId, base.Image.Size);
region.AddPoint(x, y);
regionDictionary.Add(regionId, region);
}
}
}
}
}
///Convert region connection to array of regions
regions = new SRegion[regionDictionary.Count];
int index = 0;
foreach (SRegion r in regionDictionary.Values)
{
regions[index] = r;
index++;
}
}
public override void Execute()
{
foreach (IPreProcessFilter filter in preProcessFilters)
{
filter.Apply(base.Image.Size, this.regionMask);
}
int regionIndex = 1;
regionMask = new int[base.Image.Width, base.Image.Height];
for (int x = 0; x < base.Image.Width; x++)
{
for (int y = 0; y < base.Image.Height; y++)
{
if (regionMask[x, y] == 0 & learned.Contains(base.Image.GetPixel(x, y)))
{
///Flood-Fill algorithm
Queue<Point> q = new Queue<Point>();
if (regionMask[x, y] != 0)
continue;
regionIndex++;
q.Enqueue(new Point(x, y));
while (q.Count > 0)
{
Point p = q.Peek();
int x1 = p.X;
int y1 = p.Y;
if (IsValid(p) & learned.Contains(base.Image.GetPixel(x1, y1)))
{
regionMask[x1, y1] = regionIndex;
}
if (IsValid(new Point(x1, y1 + 1)))
{
regionMask[x1, y1 + 1] = regionIndex;
q.Enqueue(new Point(x1, y1 + 1));
}
if (IsValid(new Point(x1, y1 - 1)))
{
regionMask[x1, y1 - 1] = regionIndex;
q.Enqueue(new Point(x1, y1 - 1));
}
if (IsValid(new Point(x1 + 1, y1)))
{
regionMask[x1 + 1, y1] = regionIndex;
q.Enqueue(new Point(x1 + 1, y1));
}
if (IsValid(new Point(x1 - 1, y1)))
{
regionMask[x1 - 1, y1] = regionIndex;
q.Enqueue(new Point(x1 - 1, y1));
}
q.Dequeue();
}
///end of Flood-Fill algorithm
}
}
}
///TODO: Check this.
///scan regionsMask pixel-by-pixel and forming regions groups
Dictionary<int, SRegion> regionDictionary = new Dictionary<int, SRegion>();
for (int x = 0; x < base.Image.Size.Width; x++)
{
for (int y = 0; y < base.Image.Size.Height; y++)
{
int regionId = regionMask[x, y];
if (regionId > 0)
{
if (regionDictionary.ContainsKey(regionId))
{
regionDictionary[regionId].AddPoint(x, y);
}
else
{
//SRegion region = new SRegion(base.Image.Size);
SRegion region = new SRegion(ref regionMask, regionIndex, base.Image.Size);
region.AddPoint(x, y);
regionDictionary.Add(regionId, region);
}
}
}
}
regions = new SRegion[regionDictionary.Count];
int index = 0;
foreach (SRegion r in regionDictionary.Values)
{
regions[index] = r;
index++;
}
foreach (IPostProcessFilter filter in regionFilters)
{
filter.Apply(ref regions);
}
foreach (IPostProcessFilter filter in regionFilters)
{
foreach (SRegion region in regions)
{
filter.Apply(region);
}
}
}