public static void EdgeReducer(CanvasEdgeVO dataCE, int threshold)
{
CanvasEdgeVO tmpCE = new CanvasEdgeVO(dataCE.Width, dataCE.Height);
tmpCE.Clear();
for (int y = 0; y < dataCE.Height; y++)
{
int diff = 0;
for (int x = 0; x < dataCE.Width; x++)
{
int index = y * dataCE.Width + x;
EdgePoint oneEdge = dataCE.Data[index];
if (oneEdge.Direction == GradientDirection.vertical || oneEdge.Direction == GradientDirection.askewRaise)
{
diff += oneEdge.Intensity;
if (diff > threshold)
{
oneEdge.Intensity = diff;
tmpCE.Data[index] = oneEdge;
diff = 0;
}
}
}
}
for (int x = 0; x < dataCE.Width; x++)
{
int diff = 0;
for (int y = 0; y < dataCE.Height; y++)
{
int index = y * dataCE.Width + x;
EdgePoint oneEdge = dataCE.Data[index];
if (oneEdge.Direction == GradientDirection.horizontal || oneEdge.Direction == GradientDirection.askewFall)
{
diff += oneEdge.Intensity;
if (diff > threshold)
{
if (tmpCE.Data[index].Intensity < diff)
{
oneEdge.Intensity = diff;
tmpCE.Data[index] = oneEdge;
}
diff = 0;
}
}
}
}
// prepiseme vysledek
Array.Copy(tmpCE.Data, dataCE.Data, tmpCE.Data.Length);
}
