public StarFinder(Bitmap image)
{
BoundingRects = new BoundingRectList();
var id = MakeGrayscale3(image);
var arr = GetIntArrayFromImage(id);
ImageData = arr;
}
// STAR FINDER ALGORITHM FUNCTIONS
public BoundingRectList FindAllStars(int[,] arr)
{
int threshold = Threshold;
int minSize = MinSize;
BoundingRectList result = new BoundingRectList();
int xmax = arr.GetUpperBound(0);
int ymax = arr.GetUpperBound(1);
//Top-level loop
for (int y = 0; y < ymax + 1; y++)
{
for (int x = 0; x < xmax + 1; x++)
{
Console.WriteLine("Evaluating " + x + ":" + y + " Value: " + arr[x, y]);
if (result.ContainsPoint(x, y)) //Is point already in a blob
{
Console.WriteLine("--Already in BR");
continue; //point is already in a bounding rect
}
if (arr[x, y] >= Threshold) // Edge found
{
Console.WriteLine("--Edge found");
Tuple <int, int, int> bar = GetBottomBoundingBar(arr, x, y, Threshold);
int xMin = bar.Item1;
int xMax = bar.Item2;
int yMax = bar.Item3;
int yMin = y; //TODO: *** IS THIS CORRECT ??
int[,] subImage = GetSubArray(arr, xMin, yMin, xMax, yMax);
BoundingRect rect = new BoundingRect(subImage, xMin, yMin, xMax, yMax);
Console.WriteLine("--->BR found at [" + xMin + "," + yMin + "],[" + xmax + "," + ymax + "]");
if (((xMax - xMin) >= minSize) && ((yMax - yMin) >= minSize))
{
//if (!result.BrIntersectsAnotherBr(rect))
//{
result.BrList.Add(rect);
Console.WriteLine(" ----> BR added");
//}
//else
//{
// Console.WriteLine("*** Rejected because it intersects another br");
//}
}
else
{
Console.WriteLine("*** Rejected due to small size");
}
}
else //Edge not detected
{
Console.WriteLine("--No Edge");
}
}
}
BoundingRects = result;
return(result);
}
private void cmdIterate_Click(object sender, EventArgs e)
{
int minSize = Convert.ToInt16(txtMinSize.Text);
Threshold = Convert.ToInt16(txtEdgeThreshold.Text);
Bitmap img = new Bitmap(txtSourceFile.Text);
int upperXBound = -1;
int lowerXBound = -1;
int upperYBound = -1;
int lowerYBound = -1;
int xImage = img.Height;
int yImage = img.Width;
int[,] arr = new int[xImage, yImage];
arr = GetIntArrayFromImage(img);
//ImageArray = arr; //Used for writing out the subframes.
sf.Threshold = Convert.ToInt16(txtEdgeThreshold.Text);
sf.MinSize = Convert.ToInt16(txtMinSize.Text);
Stopwatch sw = new Stopwatch();
sw.Start();
BoundingRectList result = sf.FindAllStars(arr);
sw.Stop();
if (rbAbsoluteBrightness.Checked)
{
sf.BoundingRects.SortOrder = BoundingRectList.SortOrderEnum.AbsoluteBrightness;
}
if (rbCentroid.Checked)
{
sf.BoundingRects.SortOrder = BoundingRectList.SortOrderEnum.CentroidLocation;
}
if (rbRelativeBrightness.Checked)
{
sf.BoundingRects.SortOrder = BoundingRectList.SortOrderEnum.RelativeBrightness;
}
if (rbSize.Checked)
{
sf.BoundingRects.SortOrder = BoundingRectList.SortOrderEnum.Volume;
}
if (rbUpperLefftCoord.Checked)
{
sf.BoundingRects.SortOrder = BoundingRectList.SortOrderEnum.UpperLeft;
}
sf.BoundingRects.SortList();
lblElapsedTime.Text = "Elapsed Time: " + sw.ElapsedMilliseconds;
DumpBoundingRectList(sf.BoundingRects);
}
private void DumpBoundingRectList(BoundingRectList brList)
{
int count = 0;
foreach (var item in brList.BrList)
{
string message = string.Format("{0} BR at [({1},{2}),({3},{4})] Volume={5}", count, item.OriginalUpperLeftX, item.OriginalUpperLeftY, item.OriginalBottomRightX, item.OriginalBottomRightY, item.Volume);
message += string.Format(" Centroid = ({0:G2},{1:G2})", item.CentroidX, item.CentroidY);
message += string.Format(" Abs Brightness = {0:G5} Rel Brightness = {1:G5}", item.AbsoluteBrightness, item.RelativeBrightness);
message += Environment.NewLine;
//string msg = count + " ";
//msg += "Found BR at [" + item.UpperLeftX + "," + item.UpperLeftY + "],[" + item.BottomRightX + "," + item.BottomRightY + "]";
//txtOutput.Text += msg + " Volume:" + item.Volume + " Centroid: [" + item.CentroidX + "," + item.CentroidY + "]";
txtOutput.Text += message;
count++;
}
}
// ctors
public StarFinder(int[,] imageData)
{
BoundingRects = new BoundingRectList();
ImageData = imageData;
}
