public static StatisticsResult GenerateStatistics(ManualContourDTO contour)
{
System.Drawing.Bitmap bitmap = OrthancConnection.GetBitmapByInstanceId(contour.dicomid);
int width = bitmap.Width;
int height = bitmap.Height;
int[,] matrixWithContour = CannyAlgorithm.MakeMatrixFromPoints(width, height, contour.lines.First().points);
int count = 0;
for (int x = 0; x < width; x++)
{
for (int y = 0; y < height; y++)
{
if (matrixWithContour[x, y] == 0)
{
count++;
}
}
}
int[,] image = CannyAlgorithm.ReadMatrixFromBitmap(bitmap);
double pixelSizeX = 0;
double pixelSizeY = 0;
List <string> splitString = contour.pixelSpacing.Split('\\').ToList();
List <double> split = new List <double>();
foreach (var s in splitString)
{
double d = 0;
if (double.TryParse(s, System.Globalization.NumberStyles.Number, System.Globalization.CultureInfo.InvariantCulture, out d))
{
split.Add(d);
}
}
if (split.Count >= 2)
{
pixelSizeX = split[0];
pixelSizeY = split[1];
}
double pixelAreaInMms = pixelSizeX * pixelSizeY;
double pixelLenghtInMms = pixelSizeX;
return(GenerateStatistics(contour.lines.First().points, matrixWithContour, image, 0, width, 0, height, pixelAreaInMms, pixelLenghtInMms, contour.centralPoints.First()));
}
public static List <Point> CannyWithoutStatistics(string dicomId, List <Point> points, int canvasWidth, int canvasHeight)
{
System.Drawing.Bitmap bitmap = OrthancConnection.GetBitmapByInstanceId(dicomId);
System.Drawing.Rectangle rect = new System.Drawing.Rectangle(0, 0, bitmap.Width, bitmap.Height);
System.Drawing.Imaging.BitmapData bmpData = bitmap.LockBits(rect, System.Drawing.Imaging.ImageLockMode.ReadOnly, bitmap.PixelFormat);
IntPtr ptr = bmpData.Scan0;
int bytes = Math.Abs(bmpData.Stride) * bitmap.Height;
byte[] rgbValues = new byte[bytes];
System.Runtime.InteropServices.Marshal.Copy(ptr, rgbValues, 0, bytes);
double[, ][] sobel;
int width, height;
width = bitmap.Width;
height = bitmap.Height;
int xmin, xmax, ymin, ymax;
(xmin, xmax, ymin, ymax) = FindPointsMinMaxPositions(points, width, height);
sobel = SobelOperator(rgbValues, xmin, xmax, ymin, ymax, bmpData.Stride);
bitmap.UnlockBits(bmpData);
double[, ][] gradient = FindIntensityGradient(sobel, xmin, xmax, ymin, ymax);
double[,] edges = NonMaximumSuppression(gradient, xmin, xmax, ymin, ymax);
int[] distribution = DistributionFunction(edges, xmin, xmax, ymin, ymax);
distribution = CumulativeDistributionFunction(distribution);
int min, max;
double lowerThreshold = 0.70, higherThreshold = 0.95;
(min, max) = ChooseThreshold(distribution, lowerThreshold, higherThreshold);
int[,] foundedEdges = HysteresisThreshold(edges, xmin, xmax, ymin, ymax, min, max);
int[,] foundedEdges2 = Make4ConnectedMatrix(foundedEdges, xmin, xmax, ymin, ymax);
double weight = 2.5;
List <Point> pixels = new List <Point>(Graph.FindShortestPath(foundedEdges2, xmin, xmax, ymin, ymax, weight, points));
return(pixels);
}
public static SemiAutomaticContourDTO TrivialContour(SemiAutomaticPointsDTO points)
{
List <Point> pixels = new List <Point>();
int count = points.lines.First().points.Count;
for (int i = 0; i < points.lines.First().points.Count; i++)
{
int x1 = points.lines.First().points[i].x;
int y1 = points.lines.First().points[i].y;
int x2 = points.lines.First().points[(i + 1) % count].x;
int y2 = points.lines.First().points[(i + 1) % count].y;
List <Point> pixelsBresenham = new List <Point>();
BresenhamClass.Bresenham(pixelsBresenham, x1, y1, x2, y2);
pixels = pixels.Concat(pixelsBresenham).ToList();
}
List <LinePointsAndPixels> lines = new List <LinePointsAndPixels>();
LinePointsAndPixels line = new LinePointsAndPixels();
line.points = new List <Point>(points.lines.First().points);
line.pixels = new List <Point>(pixels);
line.brushColor = points.lines.First().brushColor;
lines.Add(line);
System.Drawing.Bitmap bitmap = OrthancConnection.GetBitmapByInstanceId(points.dicomid);
int[,] matrixWithContour = CannyAlgorithm.MakeMatrixFromPoints(bitmap.Width, bitmap.Height, pixels);
int[,] image = CannyAlgorithm.ReadMatrixFromBitmap(bitmap);
StatisticsResult statisticsResult = Statistics.GenerateStatistics(pixels, matrixWithContour, image, 0, bitmap.Width, 0, bitmap.Height,
0, 0, points.centralPoints.First());
SemiAutomaticContourDTO contour = new SemiAutomaticContourDTO(points.guid,
points.dicomid, points.tag, lines, points.width, points.height, statisticsResult, points.centralPoints, points.pixelSpacing);
return(contour);
}
public static (List <Point>, StatisticsResult) Canny(string dicomId, List <Point> points, int canvasWidth, int canvasHeight,
List <Point> centralPoints, string pixelSpacing)
{
System.Drawing.Bitmap bitmap = OrthancConnection.GetBitmapByInstanceId(dicomId);
System.Drawing.Rectangle rect = new System.Drawing.Rectangle(0, 0, bitmap.Width, bitmap.Height);
System.Drawing.Imaging.BitmapData bmpData = bitmap.LockBits(rect, System.Drawing.Imaging.ImageLockMode.ReadOnly, bitmap.PixelFormat);
IntPtr ptr = bmpData.Scan0;
int bytes = Math.Abs(bmpData.Stride) * bitmap.Height;
byte[] rgbValues = new byte[bytes];
System.Runtime.InteropServices.Marshal.Copy(ptr, rgbValues, 0, bytes);
double[, ][] sobel;
int width, height;
width = bitmap.Width;
height = bitmap.Height;
int xmin, xmax, ymin, ymax;
(xmin, xmax, ymin, ymax) = FindPointsMinMaxPositions(points, width, height);
sobel = SobelOperator(rgbValues, xmin, xmax, ymin, ymax, bmpData.Stride);
bitmap.UnlockBits(bmpData);
double[, ][] gradient = FindIntensityGradient(sobel, xmin, xmax, ymin, ymax);
double[,] edges = NonMaximumSuppression(gradient, xmin, xmax, ymin, ymax);
int[] distribution = DistributionFunction(edges, xmin, xmax, ymin, ymax);
distribution = CumulativeDistributionFunction(distribution);
int min, max;
double lowerThreshold = 0.70, higherThreshold = 0.95;
(min, max) = ChooseThreshold(distribution, lowerThreshold, higherThreshold);
int[,] foundedEdges = HysteresisThreshold(edges, xmin, xmax, ymin, ymax, min, max);
int[,] foundedEdges2 = Make4ConnectedMatrix(foundedEdges, xmin, xmax, ymin, ymax);
double weight = 2.5;
List <Point> pixels = new List <Point>(Graph.FindShortestPath(foundedEdges2, xmin, xmax, ymin, ymax, weight, points));
int[,] matrixWithContour = MakeMatrixFromPoints(width, height, pixels);
int[,] matrix4Connected = Make4ConnectedMatrix(matrixWithContour, 0, 0, width, height);
List <Point> shortestPixels = new List <Point>(MakePointsFromMatrix(width, height, matrix4Connected));
int[,] image = ReadMatrixFromBitmap(bitmap);
StatisticsResult statisticsResult = null;
double pixelSizeX = 0;
double pixelSizeY = 0;
if (pixelSpacing != null)
{
List <string> splitString = pixelSpacing.Split('\\').ToList();
List <double> split = new List <double>();
foreach (var s in splitString)
{
double d = 0;
if (double.TryParse(s, System.Globalization.NumberStyles.Number, System.Globalization.CultureInfo.InvariantCulture, out d))
{
split.Add(d);
}
}
if (split.Count >= 2)
{
pixelSizeX = split[0];
pixelSizeY = split[1];
}
}
double pixelAreaInMms = pixelSizeX * pixelSizeY;
double pixelLenghtInMms = pixelSizeX;
statisticsResult = Statistics.GenerateStatistics(shortestPixels, matrixWithContour, image, 0, width, 0, height, pixelAreaInMms, pixelLenghtInMms, centralPoints.First());
return(shortestPixels, statisticsResult);
}
