public BlobResult(Image<Gray, byte> image, int threshold, IntPtr maskImage,
bool borderColor, bool findMoments)
{
detectedBlobs = GetBlobs(image, threshold, maskImage, borderColor, findMoments);
numBlobs = detectedBlobs.Length;
}
public BlobResult(Image<Gray, byte> image, int threshold, bool findMoments)
{
if (image.IsROISet)
{
Image<Gray, byte> roiImage = new Image<Gray, byte>(image.ROI.Size);
roiImage = image.Copy(image.ROI);
detectedBlobs = GetBlobs(roiImage, threshold, IntPtr.Zero, false, findMoments);
}
else
detectedBlobs = GetBlobs(image, threshold, IntPtr.Zero, false, findMoments);
numBlobs = detectedBlobs.Length;
}
public void FilterByArea(int minArea, int maxArea)
{
BlobObject[] finalBlobs;
int numFilteredBlobs = 0;
for (int i = 0; i < numBlobs; i++)
{
if (detectedBlobs[i].Area > minArea && detectedBlobs[i].Area < maxArea)
numFilteredBlobs++;
}
finalBlobs = new BlobObject[numFilteredBlobs];
int counter = 0;
for (int i = 0; i < numBlobs; i++)
{
if (detectedBlobs[i].Area > minArea && detectedBlobs[i].Area < maxArea)
{
finalBlobs[counter] = detectedBlobs[i];
counter++;
}
else
{
detectedBlobs[i].Clear();
}
}
detectedBlobs = finalBlobs;
numBlobs = numFilteredBlobs;
}
public void FilterByEccentricity(double maxEccentricity)
{
BlobObject[] finalBlobs;
int numFilteredBlobs = 0;
for (int i = 0; i < numBlobs; i++)
{
if (detectedBlobs[i].Eccentricity < maxEccentricity)
numFilteredBlobs++;
}
finalBlobs = new BlobObject[numFilteredBlobs];
int counter = 0;
for (int i = 0; i < numBlobs; i++)
{
if (detectedBlobs[i].Eccentricity < maxEccentricity)
{
finalBlobs[counter] = detectedBlobs[i];
counter++;
}
else
detectedBlobs[i].Clear();
}
detectedBlobs = finalBlobs;
numBlobs = numFilteredBlobs;
}
public void FilterByDistance(GTPoint initialLocation, int N)
{
if(N > numBlobs)
return;
BlobObject[] finalBlobs = new BlobObject[N];
double[] distances = new double[numBlobs];
int[] keys = new int[numBlobs];
//Matrix<double> distances = new Matrix<double>(numBlobs, 1);
GTPoint center;
for (int i = 0; i < numBlobs; i++)
{
center = new GTPoint(detectedBlobs[i].CentroidX, detectedBlobs[i].CentroidY);
distances[i] = Operations.Distance(center, new GTPoint(initialLocation));
keys[i] = i;
}
Array.Sort(distances, keys);
for (int i = 0; i < numBlobs; i++)
{
if (i < N)
finalBlobs[i] = detectedBlobs[keys[i]];
else
detectedBlobs[keys[i]].Clear();
}
detectedBlobs = finalBlobs;
numBlobs = N;
}
/// <summary>
/// This methods eliminates the blobs that are exterior, i.e. those blobs
/// that have pixels on the edge of the image
/// </summary>
public void EliminateExteriorBlobs()
{
BlobObject[] finalBlobs;
int numFilteredBlobs = 0;
for (int i = 0; i < numBlobs; i++)
{
if (detectedBlobs[i].Exterior == 0)
numFilteredBlobs++;
}
finalBlobs = new BlobObject[numFilteredBlobs];
int counter = 0;
for (int i = 0; i < numBlobs; i++)
{
if (detectedBlobs[i].Exterior == 0)
{
finalBlobs[counter] = detectedBlobs[i];
counter++;
}
else
{
detectedBlobs[i].Clear();
}
}
detectedBlobs = finalBlobs;
numBlobs = numFilteredBlobs;
}
