public static void Blob_Ipp()
{
Glb.DrawMatAndHist0(Glb.matSrc);
var matThr = Glb.matSrc.CvtColor(ColorConversionCodes.BGR2GRAY).Threshold(128, 255, ThresholdTypes.Otsu);
MyBlobs blobs = new MyBlobs();
Stopwatch sw = Stopwatch.StartNew();
blobs.LabelIpp(matThr.Data, matThr.Width, matThr.Height, (int)matThr.Step());
sw.Stop();
Console.WriteLine("=> Label Time: {0}ms", sw.ElapsedMilliseconds);
var matDst = new Mat(Glb.matSrc.Rows, Glb.matSrc.Cols, MatType.CV_8UC3);
matDst.SetTo(Scalar.Black);
Glb.TimerStart();
MyBlobRenderer.RenderBlobs(blobs, matDst);
Console.WriteLine("=> Render Time: {0}ms", Glb.TimerStop());
Console.WriteLine("=> Blob Count: {0}", blobs.Blobs.Count);
Glb.DrawMatAndHist1(matThr);
Glb.DrawMatAndHist2(matDst);
matThr.Dispose();
matDst.Dispose();
}
public static void RenderBlobs(MyBlobs blobs, Mat matDst)
{
int colorCount = 0;
int dstPitch = matDst.ElemSize();
foreach (var blob in blobs.Blobs.Values)
{
double r, g, b;
Glb.Hsv2Rgb((colorCount * 77) % 360, 0.5, 1.0, out r, out g, out b);
colorCount++;
byte bb = (byte)b;
byte bg = (byte)g;
byte br = (byte)r;
int label = blob.label;
for (int y = blob.MinY; y <= blob.MaxY; y++)
{
int * plabel = (int *)blobs.Labels.Ptr(y, blob.MinX);
byte *pdst = (byte *)matDst.Ptr(y, blob.MinX);
for (int x = blob.MinX; x <= blob.MaxX; x++, plabel++, pdst += dstPitch)
{
if (*plabel == label)
{
pdst[0] = bb;
pdst[1] = bg;
pdst[2] = br;
}
}
}
}
}
public static void RenderBlobs(MyBlobs blobs, Mat matDst)
{
byte *pdst = matDst.DataPointer;
int bw = matDst.Width;
int bh = matDst.Height;
int stride = (int)matDst.Step();
int colorCount = 0;
foreach (var blob in blobs.Blobs.Values)
{
double r, g, b;
Glb.Hsv2Rgb((colorCount * 77) % 360, 0.5, 1.0, out r, out g, out b);
colorCount++;
byte bb = (byte)b;
byte bg = (byte)g;
byte br = (byte)r;
int label = blob.label;
for (int y = blob.MinY; y <= blob.MaxY; y++)
{
for (int x = blob.MinX; x <= blob.MaxX; x++)
{
if (blobs.Labels[y * bw + x] == label)
{
byte *ppdst = pdst + stride * y + x * 3;
ppdst[0] = bb;
ppdst[1] = bg;
ppdst[2] = br;
}
}
}
}
}
