private void button7_Click(object sender, EventArgs e)
{
MatImage m1 = new MatImage(mimg);
m1.Convert();
mimgInGray = m1.Out();
MatImage m2 = new MatImage(mimgInGray);
m2.SmoothGaussian(3);
m2.ThresholdBinaryInv(245, 255);
// this causes an exception, and I don't know how to fix that yet.
//The good news is that this really doesn't matter for small images
//m2.MorphologyEx(2);
mimgInGray = m2.Out();
MatImage m3 = new MatImage(mimgInGray);
VectorOfVectorOfPoint contours = m3.FindContours();
List <ColorfulContourMap> cmaps = ColorfulContourMap.getAllContourMap(mimg, 0);
//CvInvoke.DrawContours(mimg, contours,-1, new Bgr(255,0,0).MCvScalar,2);
Mat mimg2 = new Mat(new Size(mimg.Width, mimg.Height), DepthType.Cv8U, 3);
foreach (ColorfulContourMap cmap in cmaps)
{
cmap.DrawColorTo(mimg2);
}
pictureBox1.Image = mimg.Bitmap;
pictureBox2.Image = mimg2.Bitmap;
}
// get all of the valid contour maps, valid means circumfence > 200 px
// this was not in their code, I added this feature, but I used their logic
public static List<ColorfulContourMap> getAllContourMap(Mat input, int index, int mode = 0)
{
// use for all members
List<ColorfulContourMap> result = new List<ColorfulContourMap>();
MatImage m1 = new MatImage(input);
m1.Convert();
Mat gray = m1.Out();
// use for black background
if (mode == 0)
{
MatImage m2 = new MatImage(gray);
m2.SmoothGaussian(3);
m2.ThresholdBinaryInv(245, 255);
gray = m2.Out();
}
// use for white background
else
{
MatImage m2 = new MatImage(gray);
m2.SmoothGaussian(3);
m2.ThresholdBinaryInv(100, 255);
gray = m2.Out();
}
// one time use
List<Point> pointList = new List<Point>();
List<Point> polyPointList = new List<Point>();
List<ColorfulPoint> cps = new List<ColorfulPoint>();
List<ColorfulPoint> pcps = new List<ColorfulPoint>();
// fetch all the contours using Emgu CV
// fetch all the polys using Emgu CV
// extract the points and colors
Mat temp = gray.Clone();
VectorOfVectorOfPoint contours = new VectorOfVectorOfPoint();
CvInvoke.FindContours(gray, contours, new Mat(), RetrType.List, ChainApproxMethod.ChainApproxNone);
double area = Math.Abs(CvInvoke.ContourArea(contours[0]));
VectorOfPoint maxArea = contours[0]; // maxArea is used as the current contour
//contour = contour.HNext;
// use this to loop
for (int i = 0; i < contours.Size; i++)
{
double nextArea = Math.Abs(CvInvoke.ContourArea(contours[i], false)); // Find the area of contour
area = nextArea;
if (area >= Constants.MIN_AREA)
{
maxArea = contours[i];
VectorOfPoint poly = new VectorOfPoint();
CvInvoke.ApproxPolyDP(maxArea, poly, 1.0, true);
pointList = maxArea.ToArray().ToList();
polyPointList = poly.ToArray().ToList();
foreach (Point p in pointList)
{
ColorfulPoint cp = new ColorfulPoint { X = p.X, Y = p.Y, color = extractPointColor(p, input) };
cps.Add(cp);
}
foreach (Point p in polyPointList)
{
ColorfulPoint cp = new ColorfulPoint { X = p.X, Y = p.Y, color = extractPointColor(p, input) };
pcps.Add(cp);
}
result.Add(new ColorfulContourMap(cps, pcps, index));
// clear temporal lists
pointList = new List<Point>();
polyPointList = new List<Point>();
cps = new List<ColorfulPoint>();
pcps = new List<ColorfulPoint>();
}
}
return result;
}
private void button7_Click(object sender, EventArgs e)
{
MatImage m1 = new MatImage(mimg);
m1.Convert();
mimgInGray = m1.Out();
MatImage m2 = new MatImage(mimgInGray);
m2.SmoothGaussian(3);
m2.ThresholdBinaryInv(245, 255);
// this causes an exception, and I don't know how to fix that yet.
//The good news is that this really doesn't matter for small images
//m2.MorphologyEx(2);
mimgInGray = m2.Out();
MatImage m3 = new MatImage(mimgInGray);
VectorOfVectorOfPoint contours = m3.FindContours();
List<ColorfulContourMap> cmaps = ColorfulContourMap.getAllContourMap(mimg, 0);
//CvInvoke.DrawContours(mimg, contours,-1, new Bgr(255,0,0).MCvScalar,2);
Mat mimg2 =new Mat(new Size(mimg.Width,mimg.Height),DepthType.Cv8U,3);
foreach(ColorfulContourMap cmap in cmaps)
{
cmap.DrawColorTo(mimg2);
}
pictureBox1.Image = mimg.Bitmap;
pictureBox2.Image = mimg2.Bitmap;
}
// get all of the valid contour maps, valid means circumfence > 200 px
// this was not in their code, I added this feature, but I used their logic
public static List <ColorfulContourMap> getAllContourMap(Mat input, int index, int mode = 0)
{
// use for all members
List <ColorfulContourMap> result = new List <ColorfulContourMap>();
MatImage m1 = new MatImage(input);
m1.Convert();
Mat gray = m1.Out();
// use for black background
if (mode == 0)
{
MatImage m2 = new MatImage(gray);
m2.SmoothGaussian(3);
m2.ThresholdBinaryInv(245, 255);
gray = m2.Out();
}
// use for white background
else
{
MatImage m2 = new MatImage(gray);
m2.SmoothGaussian(3);
m2.ThresholdBinaryInv(100, 255);
gray = m2.Out();
}
// one time use
List <Point> pointList = new List <Point>();
List <Point> polyPointList = new List <Point>();
List <ColorfulPoint> cps = new List <ColorfulPoint>();
List <ColorfulPoint> pcps = new List <ColorfulPoint>();
// fetch all the contours using Emgu CV
// fetch all the polys using Emgu CV
// extract the points and colors
Mat temp = gray.Clone();
VectorOfVectorOfPoint contours = new VectorOfVectorOfPoint();
CvInvoke.FindContours(gray, contours, new Mat(), RetrType.List, ChainApproxMethod.ChainApproxNone);
double area = Math.Abs(CvInvoke.ContourArea(contours[0]));
VectorOfPoint maxArea = contours[0]; // maxArea is used as the current contour
//contour = contour.HNext;
// use this to loop
for (int i = 0; i < contours.Size; i++)
{
double nextArea = Math.Abs(CvInvoke.ContourArea(contours[i], false)); // Find the area of contour
area = nextArea;
if (area >= Constants.MIN_AREA)
{
maxArea = contours[i];
VectorOfPoint poly = new VectorOfPoint();
CvInvoke.ApproxPolyDP(maxArea, poly, 1.0, true);
pointList = maxArea.ToArray().ToList();
polyPointList = poly.ToArray().ToList();
foreach (Point p in pointList)
{
ColorfulPoint cp = new ColorfulPoint {
X = p.X, Y = p.Y, color = extractPointColor(p, input)
};
cps.Add(cp);
}
foreach (Point p in polyPointList)
{
ColorfulPoint cp = new ColorfulPoint {
X = p.X, Y = p.Y, color = extractPointColor(p, input)
};
pcps.Add(cp);
}
result.Add(new ColorfulContourMap(cps, pcps, index));
// clear temporal lists
pointList = new List <Point>();
polyPointList = new List <Point>();
cps = new List <ColorfulPoint>();
pcps = new List <ColorfulPoint>();
}
}
return(result);
}