public unsafe int LabelIpp(IntPtr src, int bw, int bh, int stride, bool connectivity_4or8)
{
var matSrc = new Mat(bh, bw, MatType.CV_8UC1, src, stride);
// label 버퍼
this.Labels = new Mat(bw, bw, MatType.CV_32SC1, Scalar.All(0));
int numLabels = 0;
numLabels = IpDll.LabelMarker(src, (IntPtr)Labels.DataPointer, bw, bh, connectivity_4or8);
// 4. 데이터 추출
var blobs = this.Blobs;
blobs.Clear();
for (int i = 0; i < numLabels; i++)
{
int label = i + 1;
blobs[label] = new MyBlob(label);
}
// labels 수정
for (int y = 0; y < bh; y++)
{
int *plabel = (int *)Labels.Ptr(y);
for (int x = 0; x < bw; x++, plabel++)
{
var label = *plabel;
if (label == 0)
{
continue;
}
var blob = blobs[label];
blob.area++;
blob.centroidX += x;
blob.centroidY += y;
if (x < blob.MinX)
{
blob.MinX = x;
}
if (y < blob.MinY)
{
blob.MinY = y;
}
if (x > blob.MaxX)
{
blob.MaxX = x;
}
if (y > blob.MaxY)
{
blob.MaxY = y;
}
}
}
foreach (var blob in this.Blobs.Values)
{
blob.centroidX /= blob.area;
blob.centroidY /= blob.area;
}
return(numLabels);
}
public int LabelIpp(IntPtr src, int bw, int bh, int stride)
{
Glb.TimerStart();
// prepare
byte *psrc = (byte *)src.ToPointer();
// label 버퍼
this.Labels = new int[bw * bh];
this.bw = bw;
this.bh = bh;
Console.WriteLine($"=> 1. Prepare buffer time: {Glb.TimerStop()}ms");
Glb.TimerStart();
int numLabels = 0;
fixed(int *pLabels = Labels)
{
numLabels = IpDll.LabelMarker(src, (IntPtr)pLabels, bw, bh);
}
Console.WriteLine($"=> 2. IpDll.LabelMarker time: {Glb.TimerStop()}ms");
// 4. 데이터 추출
Glb.TimerStart();
var blobs = this.Blobs;
blobs.Clear();
for (int i = 0; i < numLabels; i++)
{
int label = i + 1;
blobs[label] = new MyBlob(label);
}
// labels 수정
for (int y = 0; y < bh; y++)
{
for (int x = 0; x < bw; x++)
{
var label = this.Labels[bw * y + x];
if (label == 0)
{
continue;
}
var blob = blobs[label];
blob.area++;
blob.centroidX += x;
blob.centroidY += y;
if (x < blob.MinX)
{
blob.MinX = x;
}
if (y < blob.MinY)
{
blob.MinY = y;
}
if (x > blob.MaxX)
{
blob.MaxX = x;
}
if (y > blob.MaxY)
{
blob.MaxY = y;
}
}
}
foreach (var blob in this.Blobs.Values)
{
blob.centroidX /= blob.area;
blob.centroidY /= blob.area;
}
Console.WriteLine($"=> 3. 데이터 추출 time: {Glb.TimerStop()}ms");
return(numLabels);
}
